A mild fear seems to stalk the lands as of present. An undercurrent of uneasiness. If you haven’t been living under a rock for the past few months then you’re well aware the Coronavirus is upon us and is working it’s way through the world. I hope you are well prepared (and I don’t just mean the toilet paper stockpiling) and your friends and family are well and will remain that way.
I’m not going to comment on whether the UK is prepared enough, or the response so far or even on the idiots buying up all the toilet roll at your local supermarket. I’ll instead focus on the financial aspects and the time we will likely all have to pause and reflect while under self-imposed or forced quarantines.
It was only a few months ago I was 100% in equities following the general advice of The Savings Ninja and MMM that “I’m young and don’t need no damn bonds – I’ll easily have time to recover from any falls”. I can’t remember exactly when but I came across this very thoughtful post from Monevator and reassessed my thinking. Not long afterwards I made the decision to shift my separate pots of money into a more bond heavy portfolio, like below:
To say this random article turned out to be very helpful is an understatement! Many thanks to the Monevator crew, but I can only attribute this shift to pure luck. I hope I am able to use it well in the future. However, I can also confirm that even with my portfolio down about 9% overall I’m not panicking and I’m sleeping pretty well, so I apparently found an okay level of risk tolerance for myself. I am of course aware it could go way further down too though!
If you’re wondering why the SIPP is so bond heavy, I was taking advantage of a transfer in offer to a provider and it was then sitting waiting for Vanguard to open their own SIPP, which was delayed… I’d half forgotten about it, oops. Luckily it’s only a small part of my portfolio.
When being irrational is rational
I think there gets a point where the irrational acting people reach such a critical mass that not joining in with them could, rationally, leave you worse off. While fortunately my wife and I have enough non-perishable food that we could last a few weeks by default (we buy rice and pasta by the 10kg bags as standard), it was eye opening to wander down the various aisles at our local supermarket and see all the bare shelves.
Pasta? Gone. Rice? Gone. Bottled water? Gone, except the Dasani brand stuff (nobody ever wants that!). Something at the back of your head does start to prickle and make you wonder if you’re not the rational one and should pick up an extra large box of Weetabix just in case…
Within the FIRE blogosphere, there has also been a wave of “my equities are higher than ever!” and “bonds are a drag on returns!” with only perhaps Ermine and Monevator sounding the gong of “steady on folks, this can’t last forever!”. But going against the grain is not easy and I felt much inner turmoil watching other bloggers post record 20% returns in the year when I took some risk off the table and settled for my meagre ~15%.
I picked up a copy of Antifragile by Nassim Taleb from my local library to read while work is likely to have some downtime and I’m only about a quarter through it. I want to do a full review on it in a later post but I have to say I’m gaining a new perspective on how I view the world. Though I do think he bashes lecturers a bit much. I may also read Black Swan at some point, one of his most famous books.
If I were a super active investor it would be intriguing to apply an estimate of volatility to the current Coronavirus crisis. Will the UK end up like Italy in two weeks? Is the FTSE 100 going down further, hitting the lows of the 2008 Financial Crisis? How does Brexit factor into all this? Should I invest in loo roll manufacturers? Will the drop in oil price have an effect on all the above and will it be positive or negative? That last one is probably negative for me, the electric car was sort of a hedge on higher petrol prices, heh.
Of course the correct passive answer is to carry on carrying on. I’ve upped my contributions a little to buy in while things are a little lower but I don’t have a large surplus of cash I can just throw into the market right now and I won’t be shifting my bonds into equities until there’s a 5% increase or decrease on one or the other which hasn’t happened yet (though we’re getting close).
It is worth pointing out that even with the fairly big global drops in stock markets, we’re still nowhere near the prices available back when I first started investing in 2016. I had bugger all cash to spare then but those small amounts are still doing pretty well compared to now. Keep everything in perspective when it comes to your portfolio. If you’re under 50, then you’ll probably be fine – both in terms of time to recover and due to the virus. If you’re coming up on retirement age then you should be heavier in bonds to reduce your volatility before draw-down and take extra care out there in the world.
Nothing will happen and then everything will
The problem with diseases like the Coronavirus is that they spread exponentially and us humans are only really good at thinking linearly. Take this as an example:
A lily pond starts with a single lily leaf. Each day the number of leaves will double, so 2 leaves on the second day, 4 leaves on the third day, etc. If the pond is full on the 30th day, on which day is the pond half full?
Have a think before you click through to the answer. It’s obvious once you stop and think about it, but our brains are trained to do linear processes by default. Your retirement plan is somewhat based on this exponential growth as well as you go into the longer term with compound interest or returns. Each year extra you work and can build up your funds gains you far more than the previous year due to new money being added and also compounding. Even if you spent all your money in that extra year working, you would still (likely) have a higher retirement income, just from the extra returns!
Here an extra year of waiting from 29 to 30 years would net you an additional £19,601 whereas waiting an extra year even at the half way mark of 15 to 16 years only nets you £9,900 more! For the same amount of time! Now let’s look what happens when we’re dealing with the Coronavirus which has seen infection rates of nearly 200% a day:
If humans are bad at dealing with small values of exponential growth, then we’re really really bad at understanding high numbers of exponential growth. And as such, nothing will happen for a while and then it will happen all at once. Thinking in this way is hard, but I’m glad that there are people much smarter than me who have the knowledge and experience to deal with this outbreak.
My own workplace has just informed us that we’re not to travel to client site anymore, which seems a wise move. It also make it feel just that little bit more real. Stay safe out there folks, and go wash your hands!
Hello again and apologies for not writing much in the month of Feburary.
Contary to popular rumours, I have not won the lottery and retired in the Bahamas (alas), I have just been extremely busy preparing and undertaking a massive exam at work. The prize? The “You’ve made it in this company” certification, where you start getting taken seriously for lead technical roles and the pay grades start bumping up rapidly. Also the option of being taken seriously for contracting occurs, as if you have this certification, you have a known set of skills which are very “marketable” to a potential client. Wish to claim this grand prize for yourself? Well nobody said it was going to be easy…
To protect my anonymity and the company I work for I won’t be going into specifics of what was in the exam, just an overview, but what I really want to talk about is how to prepare yourself for doing something very difficult. It could be an exam, that new exercise routine you’re planning, that big presentation you have coming up, or anything really where you’re less than 100% confident you’re going to smash it.
My own challenge
So what was I up against in this challenge?
Two 3 hour exams, fortunately multi-choice, unfortunately bloody hard with trick questions and barely enough time to complete them all
An interview with a long-standing technical lead answering obscure questions to products you’ve probably never used before
And the biggie: a 7 day continuous system build. It’s basically a 168 hour exam question. You start with a blank slate and build everything defined in the scenario question.
Put off yet? Only 1 in 3 people pass this process on average.
Starting at the beginning
The exams are simply knowledge checks. You’re tested on the contents of certain courses provided by the company. You’re expected to know quite a bit of this stuff just by simply doing your day to day job and learning the idiosyncrasies of how the software does certain things. Some of these are well known, others are not.
So I rocked up feeling pretty confident with myself, with pages of hand written notes and diagrams and all that good stuff you learn at University. I’ve been working at this company for several years now in big projects and am regarded well technically for developing and fixing things big and small. It can’t be too hard right?
Oh, bollocks. Is that a 45% fail grade on my exam?!
Ahem. After eating some humble pie, an additional week of study (and doing all the test exercises, extra external readings, talking with someone who’s done the exam previously and asking the product team why the hell does it work that way), and not wasting an hour of set study time I go for the exams again.
How the hell is 65% not a passing grade?!
Turns out it’s 70% oops. Which leads me to my first point.
#1 – You will fail. Repeatedly.
Unless you’re one of those top 0.1% of people who can take on any task and make it look effortless, you will fail. A lot. Perhaps you underestimated the size of the task. Perhaps your abilities really just aren’t good enough yet. There’s no shame in it. Eat the humble pie, thank yourself for the experience and accept you need to grow. We all start at ground zero; it’s up to you to start the climb up.
Fortunately, you can improve! One of the most amazing things about humans is our ability to share knowledge and experience. Once you’ve identified a weakness, you can take steps to minimise and correct it. I wasn’t being thorough enough in my studies and got a wake up call. My corrective actions, while not leading to a pass the second time bumped up my score significantly. I went from feeling “holy crap I don’t know if I’ll be able to beat this” to “argh I was just a few percent off a pass” in a week. You’ve only truly lost when you give up.
Oh, I passed the third time by the way!
#2 – Make a plan and stick to it
The interview was more of the same. The key part I want to talk about is the 1 week build from hell. I’m used to working to tight deadlines. I’m used to people asking for the world yesterday and demanding it be delivered to last week. I’m used to to-do lists running several miles long all marked “Critical”. And yet I knew this would be the hardest challenge to me.
Why you ask? This 1 week build is a time management test. And I’m not great at that.
The one advantage I have is that the build scenario has a defined number of questions and you’re told what each question is worth e.g. one may be worth 20% and the other 40%. Armed with this knowledge and the ability to do basic maths, I plotted out rough time slots for each part of each question based on roughly how many hours i would have based on this percentage. The key is to then stick to those times! Speaking of which…
#3 – Check your progress against your plan
Get a timer – use your phone if it won’t distract you and check it regularly. It is frankly astounding how fast time goes when you really don’t want it to. Setting aside 3 hours to do a design document and finding out you’re two-thirds through the time and you’re only half done definitely puts you in panic mode and has the wonderful side effect (for me) of focusing my mind very firmly on the task at hand! Which leads to…
#4 – You have no time for perfect
That bit of code that you know you could do better but is a bit janky now? It won’t get fixed, don’t kid yourself. The goal is ‘good enough’ and if you have the time, improve that to ‘slightly refined’. Perfect takes an inordinate amount of time. I’ve started applying this logic to my exercise routines as well – I’m not going to do every single workout perfectly and some days I’m going to just be off my game. The fact I’m doing it to the best of my ability given the constraints is enough.
Of course, the examiners in my case aren’t expecting a full bells and whistles build. They are expecting a working functional build though. The fact I even made it through the whole exam without collapsing into a caffeine-fuelled coma is a testament in itself. I know of other people who threw in the towel on day 4-5 because they just couldn’t picture the end result or messed up their first couple of days spending too much time on ‘nice-to-have’ features which weren’t that important to the end result.
#5 – Get feedback so you can improve next time!
People are generally a really nice bunch and are willing to help you if you only ask. Where possible, ask them to review your work. That week-long build I did? I failed.
However, I qualified for a “re-build” which meant I was given an additional day to improve the build but the pass mark went up. As a bonus though, I received some valuable feedback on suggested areas of improvement which made planning out how to make the most of my 24 hour grace period a lot easier to determine what to focus on.
And having just submitted my updated build a couple of days ago… I now play the waiting game to find out if the above advice was any good to myself!
EDIT: A last-minute update!
Not one day after I drafted the first ‘ready to go’ version of this post, I am happy to report that I have passed my exam! Time to work on that promotion speech! Woohoo!
Welcome to a new series I’m deciding to call “Blitz Your Bills” where we investigate the average UK household’s expenditures on the various costs of life and determine the best ways to improve your situation and thus savings! There are several cheap or even free ways to help lower your costs on your energy usage, from improving efficiency to finding better deals for what you’re paying, but I’ve decided to pick 10 simple steps you can take to make your home more efficient, less power hungry and less costly to run!
A lot of things might affect the ‘average’, such as some houses using oil or electricity to heat their water and rooms. Certainly a lot of flats tend to run everything off electricity in my experience. Ovo Energy kindly break down the differences between housing types as well.
It’s interesting to note how end terrace houses seem to use 23% extra electricity due to having an additional outside wall! Detached houses similarly use about 8% more due to having an additional outside wall. For myself, living in a semi-detached house, I am comparing my own usage to 3,847 kWh of electricity usage a year.
Our house uses 60% less electricity
If you’ve read my one year review of The Solar House Experiment, then you’ll know that we use roughly ~1550 kWh a year, before factoring in the solar panels and excluding the electric car. That’s 60% less than the average semi-detached house! How on earth do we do that?!
First of all, it does help that our house is a relatively new build (just over 10 years old) and had an Energy Performance Rating (EPC) of B when new. Since then the previous owners added on an extra floor, so it’s not as good as it could be. But there are some other changes we have made that have reduced our usage considerably.
If you’re wanting to make the biggest impact, you need to target the most costly areas, which as you can see mostly covers kitchen appliances and lighting, with home electronics further down the scale but still a significant amount. With that, let’s look at 10 areas you can focus on to reduce your energy usage and bills.
#1 – Replace all bulbs with LEDS
The previous owners of our house had pretty much all normal incandescent light bulbs everywhere! A 60W bulb uses, well, 60W of energy an hour that it’s turned on. An A++ energy efficient LED light bulb can output roughly the same amount of lumens (light) with just 6W of power – a 90% power saving! If you’re willing to drop to a 40W equivalent, likes the ones I’ve installed, then that’s 94% saving!
As an example, in our kitchen there were 6 recessed lights, each consuming 35W each for a total of 210W per hour (or about 3p/hour of electricity). I headed to my local hardware store, bought a couple of packs of LED replacement lights and replaced them. The new LED lights? They only draw 3.5W each or 21W total an hour – again, a 90% saving! For minimal effort and expense! And they’re as bright (possibly brighter) than the old ones! Ain’t technological progress grand?
#2 – Turn down your hot water
Did you know that you can set the temperature of your hot water boiler? I didn’t until I had my own place and started wondering why my electricity bill was so high. Turns out heating water by electricity is the most expensive way to do it. Oops. Though living in a flat at the time, I didn’t have any other option.
What I could do however, was reduce the energy by lowering the water tank’s thermometer to 60 degrees Celsius instead of the 80 degrees it was on previously! My showers were generally at 40 degrees and I had no need for anything higher – I never noticed the difference. Why not just drop the temperature down to that level? A minimum water temperature of 60 degrees Celsius is recommended to kill legionella bacteria (the cause of Legionnaires’ disease). It’s not worth risking yourself and your family to save a few pounds on hot water.
#3 – Get a temperature control kettle
I’ve already covered why this will have a pretty big impact on your energy savings in a separate article, but the principle is very much the same as #2. Water is a very energy intensive substance to heat up so if you heat it to a lower (but still very hot) temperature then you save money – especially as electricity is the most expensive way to heat water!
It can definitely be worth your while to pick up a power consumption device for your plugged-in electrical items. You can get a basic one for just £12.99 from Amazon for example. Plug in your various appliances and see how much power they are pulling even in ‘stand-by’ or ‘low power’ modes. For example I was surprised to learn just how much power my Xbox was drawing in its ‘off’ state. Delving into the options for it, I found a way to properly ‘turn it off’ when I hit the power button which took it’s stand-by usage from about 12W down to 1W.
Even with a full check of our devices, there is still roughly a 100W load in the house with everything turned off. I suspect this is related to our mesh Wi-Fi routers and some monitoring devices I have installed but it contributes towards an extra £100 a year on our electricity bill!
#5 – Turn down your heating / reduce the duration
It’s an oldie but a goodie. If you’re heating your house to a lower temperature then you’ll pay less, pretty simple. Our house does have some cold spots in the ground floor and a radiator very stupidly positioned near the thermostat but we leave ours on 20 degrees Celsius which seems to be about 18/19 degrees elsewhere in the house.
Also make sure to keep your doors shut when heating specific rooms!
#6 – Check how efficient your appliances are
While I am not a proponent of throwing out a perfectly working appliance, it is worth checking how efficient your kitchen appliances are and your gas boiler. For example, nowadays I think it is pretty much impossible to buy a washing machine that isn’t at least ‘A’ rated and most ‘A+++’ machines cost no more than the ‘A’ rated ones. If you have an appliance that is nearing the end of its life – strongly consider going for a more efficient one. The savings over the lifetime of the device will likely pay off.
Turns out we had a big air gap in our front door and in a hole that was drilled for some electrical installation! Filling this gap up with the correct sealant has made the downstairs feel a bit warmer but we still need to sort out the front door as it is not sealing properly with the frame.
Another good idea is to check you have sufficient insulation in your walls and loft (if you have one). You will probably have to get a professional in to get this checked and installed, but if you’re spending a load on energy bills, it’s worth doing. The newer your house is however, the less likely this is needed as new homes are built to be very thermally efficient. I shall direct you to MSE for the full details of the government scheme, where you may be able to get some of this for free or discounted: https://www.moneysavingexpert.com/utilities/free-cavity-loft-insulation/
It can be worth getting a professional audit done (see #9) as they have the tools such as thermal cameras which make the job of finding cold spots easier to do.
#8 – Radiator reflectors
Radiator Reflectors are basically a thermally reflective foil layer (usually aluminium) that reflects the heat that would have been absorbed into the supporting wall out into the room instead. While there are different studies on their effectiveness, this study showed a 6% reduction in the energy required to heat a room after installing the reflector.
While I don’t usually mention brand names, it is notable that in the UK only two suppliers have reflectors approved by the government’s Carbon Emission Reduction Target (CERT) scheme: Radflek and Heatkeeper. The prices don’t look extortionate for an ongoing 6% reduction in your heating bill!
#9 – Get an energy audit
If you’re struggling with any of the above, it can be worthwhile getting a professional to give your house the once over with an energy audit. They have all the tools required such as thermal imaging cameras and the know-how to what your problems may be. You can find a well reviewed one on CheckATrade or equivalent site.
We got one in and he determined our radiators were undersized for a couple of rooms in our house and that they weren’t properly balanced. 20 minutes later he had fixed the balancing issue and refused to charge us! Our house is much toaster now and our heating bill seems to have dropped a little. Sometimes it pays to get an expert in!
#10 – Switch to a cheaper supplier
Finally we get to the big one. All of the ideas above reduce your energy consumption. The other way is to pay less for the actual energy you consume. I’ve left this one till last because while it is very important, I think you should take all the steps above first to reduce your consumption before you reduce your price per unit.
I am a long time user of MSEs Cheap Energy Club. Put in some details, find out how much energy you use a year (normally stated on your bill somewhere) and get a complete list of all energy companies and the price they will cost you. If you are on a standard tariff, first, what the actual f*ck are you doing paying so much (?!), and second, get onto a fixed deal now! You could literally save a few hundred pounds a year!
And that pretty much covers the biggies of UK household consumption! Some are very cheap or even free to implement right now whereas some will require more investment in new appliances or changing of your habits slightly. Do you have any more to add to the list?
I’ll be entirely honest, I wasn’t sure if I would ever be doing a ‘numbers’ post. But having seen how freely some other bloggers share their numbers (such as weenie at Quietly Saving, Saving Ninja, The FIRE Starter and Fire V London) and having learnt some things I never knew about before from their stories (matched betting and margin loans for example), I figured it wouldn’t be the worst thing in the world to share some figures and endure the intense scrutiny of the FIRE crowd. I think I run a pretty tight ship, but I have lately been seduced by the dark side – I’ve bought a couple of expensive items, therefore torpedoing my chances of an 80% savings rate this year. Oops.
Ever since about 2015 I’ve developed a habit of on the last day of each month, grab all the figures for my various accounts, investments, mortgages and credit cards (but not pensions, because I’m an idiot – we’ll get to that later) and update my ever growing spreadsheet. So from that point onward I have pretty accurate data on my net worth. Before that though, I’m going off some random bits of memory, some rough guesses and some older spreadsheets I found that relate to my household outgoings, so bear with me on the early parts!
For a brief introduction, you can refer back to my previous post of when I got my first job.
The Early Years (pre-2007)
End Net Worth: ~£1,000.
I started working when I was 16 and still at school doing a 8-9 hour shift every Saturday at the local fast food restaurant where I was paid about £35 a day (and got a free lunch out of it!). Not exactly astounding money but it did help me take my girlfriend at the time out to the movies and shopping! I continued to work there during my college years and I’m pretty sure by age 18 I had roughly £1,000 to my name which isn’t bad!
The Uni Years (2007 – 2010)
End Net Worth: ~-£10,000 (with £3,000 savings, student loan outstanding)
I was extremely fortunate when I left University not to have massive debts. The number one reason was back when I went University tuition fees were capped at £3,300 a year. The second reason was I got a grant for the first two years which halved my fees! I did a three year Bachelor’s in Computer Science, plus I had to pay rent in the grotty houses surrounding the University (I shared with 5 other guys). I continued to work at the fast food restaurant during the holidays (Summer, Easter, Christmas) and remember for the first time wondering what the hell this “Income Tax” was that appeared on my payslip(!).
I can’t remember exactly what I was earning but it wasn’t much even after I got a “promotion” to training the other guys how to make the food. I think I had about £3,000 in savings but my student debts were much bigger as I mainly used my money for fun times and didn’t even think about the loans that much.
Failing to find a job (~2010/11)
End Net Worth: ~-£4,000 (with £9,000 savings, student loan outstanding)
As detailed in my last story post, I graduated from University and then… failed to get a job in my chosen field. The Great Recession of 2008 had occurred a couple of years previously and it seems there was a massive over-supply of graduates trying to get a job. I remember going into an interview at IBM where they had 8 graduate positions available and the room was packed with about 200 people! And these were the ones who had gotten past the first two interview steps! I ended up doing nearly a full year at the fast food restaurant, interviewing for jobs in between shifts and also covering any shift I could get my hands on.
I was, of course, at this point still living at home with my parents. And while I love them dearly, going from complete freedom at Uni for three years back under parental rule was really starting to annoy me. On the upside, I only paid £200 a month rent and got lunch most days for free at work, so I had basically zero outgoings which was nice. I think I made about £8,000 from my job that year, minus the £2,400 I paid my parents for rent.
My first job (2011)
Start Net Worth: ~-£15,000 (with £3,000 savings, car loan, student loan outstanding) End Net Worth: ~£0 (with £18,000 savings, car loan outstanding)
By some small miracle I actually got hired into a graduate scheme at an IT company! I joined as a “consultant”, which basically meant I travelled up and down the country building and supporting systems. This meant I needed a car. Cue me (in my stupidity of youth), spending nearly £11,000 on a 1 year old Ford Fiesta that looked very sporty but only had a dinky 1.4L engine. I did not have £11,000 to my name so… I borrowed about £5,000 and put down a deposit of £6,000 of my own money. Turns out that financing was quite pricey, but hey I was young and stupid, okay! In my (slight) defence I was still driving that car until late 2019!
My starting salary was £25,000 (I still remember being in the car when I got the call that I’d gotten the job. When they said the salary, I was “in a daze for days” according to my Mum). I was still living at home but due to me being away Monday – Friday for work this wasn’t such a bad problem as before! I think I just about broke even on net worth this year. I had started paying down my remaining student loans (and stupidly didn’t pay down the car loan).
Saving up to buy a flat (2012/13)
End Net Worth: ~£25,000 (no student loan, car loan outstanding)
I don’t remember exactly when but I got promoted to the next level and my salary got bumped up to £30,000, so I think I had just under £2,000 coming in a month. I joined the pension scheme at work, where the employer contributed 10% if I put in 2.5%! I put in the bare minimum (d’oh). I started hunting for a flat in early 2013 and had saved up about £20,000 as a deposit (I always keep a bit of cash in reserve as a buffer).
When I found a lovely flat in an area I liked, I went to the banks to get a mortgage. Turns out they were willing to lend a 23 year old guy £150,000…! That was 5x my salary if you’re keeping score. That actually scared the crap out of me. I am very debt adverse as a rule. Oh, and I still had a year left on my car loan, but to get the mortgage I was required to pay it off, argh! I had to throw my savings buffer at the car and at all the related fees that come with buying a property.
Home (flat) ownership! (mid 2013 – mid 2015)
Start Net Worth: -£130,000 (no car loan, £20k equity, £150k mortgage) End Net Worth: -£33,350 (£92k equity, £138k mortgage, £12k cash, £5k credit cards)
I had just gotten debt free and then I got a huge mortgage. Oops. According to my spreadsheet of the time I was paying the following major costs a month:
Council Tax: £85
Fuel: £50 (work covered most of it though)
My salary had grown to around £36,000 though which was nice. I also discovered that the bank I took the mortgage from allowed you to overpay by £500 a month with no penalty. I had yet to discover investing, Monevator or the FIRE movement then, else I might have put my money into some global trackers and reaped the rewards! Ah well.
Instead I over paid my mortgage by ~£5,000 a year and brought that crazy 5x salary multiple down to a much more reasonable number. I remember sleeping better when it dipped under 4x salary. My flat also jumped up in value apparently, as I started tracking my end-of-month numbers and I have the equity value as £92k! Also, amazingly, I think I was achieving about a 50% savings rate back then. Win!
A note about Net Worth and my spreadsheet
From this point onwards, around August 2015, my spreadsheet started recording the values of various assets and debts on an end-of-month basis, so the numbers should be pretty accurate from here on out. I calculate Net Worth as:
Total of all assets (except pension) minus all debts = Net Worth value
Why don’t I include pensions? Because I never thought to actually keep track of the them until the beginning of 2019… argh! Stupid boy. I probably figured they weren’t worth thinking about until I was much older. I did start taking notice in 2018 but still didn’t track them, and I have no idea what was in them before then, so you’ll see a big spike starting 2019. Anyway…
Assets include: cash, equity, ISAs, pensions (after 2018), never my car Debts include: credit cards (even if they’re work expenses), loans, mortgages
Starting to track things (mid-2015 – 2016)
End of 2015 Net Worth: -£29,500 (£93k equity, £136k mortgage)
I continued to work hard at my job and was up to about £38k salary. Not factored in my spreadsheet are the various bonuses I received twice a year – I don’t think they were massive sums or anything but they would have been chucked at the mortgage or saved in cash back then.
The year of the job change (2016)
End of 2016 Net Worth: £13,000 (£110k equity, £119k mortgage, £11k S&S ISA)
I had by now been at my job for nearly 5 years and was looking for a change. I was getting a little bored of being stuck on the same client for over a year and the prospects of getting a new one seemed slim – I had a very niche skill set at the company and they refused to let me train up anyone else in what I did. I hunted around for a new job.
I eventually landed a job with a massive salary increase to £63,000(!). I was apparently being underpaid at my old job and never realised it! With my (pre-tax) salary bump of 65%(!) I was set to really super charge my savings rate! My spreadsheet shows that my outgoings had actually dropped quite a bit for my flat, as all those mortgage over payments meant I qualified for lower rates as well. Expenses a month were:
Council Tax: £92
Fuel: £100 (work still covered most of this)
I had also finally discovered investing and started building up a Stocks & Shares ISA, slowly drip feeding in about £1k a month to test the waters. My new employer offered a 5% match on their pension and I started contributing 15% of my salary into it (the max allowed at the time). My spreadsheet shows a 76% savings rate for 2016!
An engagement, a house, a TV and a cat (2017)
End of 2017 Net Worth: £36,500 (£165k equity, £196k mortgage, £33k ISA)
I asked my girlfriend of the past few years to marry me and she said yes! We both ended up selling our flats (mine in a commuter town in the south east, hers in London) and bought our current home in a leafy suburb of London. I stayed with my parents for a couple of months while the purchase went through, which is why my net worth sky rocketed for a couple of months then drops to nearly nothing on the above chart. This year I also achieved a raise and my salary grew to about £68,000, after helping deliver a particular gruelling project which was on fire for most of the year…
From this point on, we shared all household costs between us 50/50 but the below numbers are the half I paid. The numbers are a bit higher than when I was living in my flat:
Council Tax: £83
Fuel: £100 (work still covered most of this)
TV Loan: £150 (bah – it was 0% interest at least)
I splurged out on a shiny new 4K OLED TV which is still awesome for cinema nights, but it was a really stupid purchase… sigh. We also adopted a cat from a shelter as it was one of my wife’s dreams to have one – she is adorable and a pain in the butt (the cat, not the wife).
Ploughing on, a wedding and a honeymoon (2018)
End of 2018 Net Worth: £87,800 (£192k equity, £170k mortgage, £50k ISA)
I got married! Woo! With my wife and I’s combined salary we started overpaying the mortgage as much as possible while filling up our ISAs to the £20k limit each year. We then spent the winter in Hawaii exploring the islands and generally having a good time! My salary rose quite a bit this year as well due to good project performance.
Crushing the mortgage and tracking pensions (2019)
2019 Net Worth: £210,000 (£212k equity, £150k mortgage, £53k ISA, £109k pensions)
I finally started tracking my pensions, which account for about half my net worth. Excluding them, my net worth still increased by about £12k, but this was mainly due to throwing a crap load of money at the mortgage to get it down to a reasonable level. My salary again rose due to “exceeding expectations”. I also received a large bonus which was 100% put into my pension (lest I be tempted to spend it). You’ll also notice there is a significant dip around September 2019 – I sold a chunk of my ISA and got a loan to buy the car of my dreams; a Tesla Model 3. It was worth every penny.
I achieved roughly a 77% saving rate in 2018 – but that’s excluding the car purchase, which came from a mixture of savings and a loan. I upped my pension contributions to 20% and they grew almost £35k with contributions and a surge of stock market growth, so it wasn’t all bad. I plan to do a ‘year in review’ at some point to dive into more details on where my spending went and what I managed to save last year.
Looking back through the years and the numbers, I can see there’s been some lifestyle inflation going on, but that seems mainly to be linked to moving from my small flat to a much bigger house in London. The mortgage is by far my biggest outgoing. We’ve cleared nearly a third of it in the past two years and it’s still bloody huge. Housing in London is ridiculous.
I certainly had some good luck with getting on my graduate program all those years ago, but I’d like to think I returned their chance on me with many years of hard work, late nights and (paid) weekend work. If you deliver what you say you will, when you said you would, people start to notice and will reward you for it.
Excluding the mortgage (and soon to be gone car loan), my annual expenditure on day to day living is a pretty measly £5k a year(!). It definitely helps I get my transport and meals covered by my job most of the week but even at the weekend I don’t really do expensive things. I’m far happier sitting in a pub with my friends and playing board games, or just wandering around town and grabbing a coffee with my wife than anything else.
The year 2019 is over and I have received the official numbers on the scoreboard for the first year of The Solar House Experiment (TSHE). Just in case you haven’t read the previous overview post, I installed a 3.6 kW solar array on my house in November 2018. There were then a few additions to the system over the year:
April 2019 – I installed a solar diverter that takes excess solar energy and dumps this into our hot water tank, providing ‘free’ hot water
September 2019 – I bought an electric car after my poor old Ford Fiesta died rather spectacularly after 9 years of reliable service
Late November 2019 – a shiny new 7.7 kW EV charger was installed which has the ability to dump excess solar power into the car, or charge the car rapidly overnight
The total cost for my installed solar panels was £7,566. This included parts and labour, but I went and fished out the original invoice to show how much exactly the panels, inverters and monitoring software individually cost and what the labour charge was. Please free feel to use this as a comparison if you decide to get your own panels installed in the future!
Due to space constraints on our house, I went for the Panasonic 330W panels. At the time of purchase they were one of the highest wattage panels in the ‘normal’ panel size. With a claimed efficiency of >19% they were also some of the most efficient, though I imagine the panel technology has gotten even better since 2018. For reference, your ‘average’ mass produced panel was closer to 265W and 15% efficiency.
There are generally two types of inverters used with solar panels: string and micro. String inverters can connect multiple panels at once and are thus cheaper, however, their drawback is that they can only convert power equal to the worst performing panel in the string. If one of your, say, eight panels has a shading issue, then the rest of the panels in the array could only output the same amount of power as that shaded panel. Micro-inverters are attached in a 1:1 ratio (one inverter per panel). This allows each panel to produce the absolute maximum possible and feed it into your home/the grid. I had additional reasons to get these as I have 11 panels and some of them are at different angles on the roofs, meaning I’d get sub-par performance otherwise. An additional benefit is I can see the production of solar on a per-panel basis with the monitoring software!
This little box sits near your electric fuse box and has a couple of CT clamps attached to it that measure the energy following in from the panels and the input/output of power from and to the grid. The software works very well with the micro-inverters (same company) and provides insights and useful statistical data, some of which I’ll be discussing later in this post! At £300 it’s not cheap but does make sure everything is running smoothly in your system and allows for remote troubleshooting if necessary (which you can disable if you wish / have privacy concerns).
The remaining costs were for some mounting kits to the roof (~£400), an additional fuse box and wiring for my garage (~£200) and labour/setup costs of about £2,800. The company who did my installation weren’t the cheapest but they were the friendliest and answered every question I had with detailed replies – which was a great learning experience for me!
The solar year in review
First let’s look at the yearly graph to see how much solar was generated and consumed:
There’s quite a bit to unpack from this screenshot and there’s a couple of errors I need to point out as some of the values are slightly off:
May 2019 – the CT clamp measuring the power flowing in/out of the house was switched accidentally by my Dad and myself when we were installing the solar diverter and we didn’t catch it till the end of May. My energy bills from May are not much different from April or June, so ignore this.
June 2019 – my panels were producing so much solar power, they kept shutting themselves off during peak periods due to overheating. The company who installed the panels very graciously upgraded all the micro-inverters for free and didn’t charge for parts or labour. As you can see in July, they fixed the issue! This does mean my panels didn’t generate about an additional ~200 kW by my reckoning though.
September 2019 – The power consumption spikes up massively because I bought an electric car and, on a day I charge it, it easily adds on 30 kW to our daily consumption.
Solar Stats Breakdown
Solar Gen. (kWh)
House Usage (kWh)
Used Solar (kWh)
Solar Used (%)
Monthly usage stats from the solar panels and house consumption. * denotes estimated values.
So as you can see above, the panels produced 2.75 MEGA Watts (2,755 kW) of carbon-free power to the house and national grid as a whole. Not bad for a first year! With the kinks ironed out now, I think it’s possible they’ll do 3 Mega Watts in 2020! In terms of saving us money on our electricity bills, we’ll get to that in a minute. First let’s compare our 2018 and 2019 usage (removing the electric car for the moment).
House Usage 2018 (kWh)
House Usage 2019 (kWh)
Electricity Usage DIFF. (kWh)
Electricity Usage DIFF. (%)
House electricity consumption years compared. * denotes that the 2019 figures are excluding the electric car charging, which is quite substantial!
To put that another way, on our normal day to day energy usage, we are using nearly 40% less electricity to power our home a year. Though interestingly, we are only making use of about ~22.5% of the solar power produced to do this. How was the other ~24% of solar power consumed then?
The solar diverter to the rescue
As you can see from the above photo, the solar diverter (MyEnergi Eddi) device helped drastically boost the solar usage from the house by using 673 kW of solar power. By taking excess energy from the panels when there’s no other electrical loads in the house, we get to enjoy ‘free’ hot water, especially during the summer months. We were able to turn the gas boiler off completely for a while!
As the solar diverter was not installed until late April, there is a chance we might be able to get to 1 Mega Watt (1,000 kW) of hot water heated next year! Last year’s 673 kW of solar energy currently equates to 136.6 kg of co2 not released due to burning natural gas! Fantastic!
Thoughts on solar consumption
I was very unsure how much of the solar power produced we would be able to use on a day to day basis. Our main problem is that when the solar panels are at their most powerful, in the middle of the day, my wife and I are generally at work so we can’t make the best use of the power. The incredibly obvious solution is to get a solar battery but these are very very expensive and currently the payback period is way too long to justify one. At just under £400, the MyEnergi Eddi is an excellent addition to The Solar House Experiment as it allows for the power to be used regardless of who is in the house or what is happening in it. It is completely fit and forget.
That isn’t to say we didn’t make efforts to do things such as use the washing machine, dish washer and oven during peak solar periods where possible but this is not always practical. It was interesting to note that when working from home that the panels, even in winter, would generally power all the computers and equipment I use for my work which was cool!
With the addition of the electric car and its huge battery and my new EV charger (MyEnergi Zappi) I will hopefully be able to increase that solar usage number even further, especially during the summer months. The best solar generation was in July when the panels produced 22 kW of power in one day(!) Our house uses about 3-4 kW on an average day so that is frankly an insane amount of power to use up! That amount would let me add nearly 90 miles of driving range a day to my car, for free!
The money side of things
Finally, let’s discuss what has been the payback on the panels and solar diverter and how long will it take for them to pay for themselves. First, note that the solar diverter is replacing much cheaper natural gas with solar generated electricity, so it’s cost savings are less than they might first appear. For comparison, my unit rates for each are:
Price Per kWh (GAS)
Price per kWh (Electricity)
3.51p* *(4.13p assuming 85% efficient gas boiler)
Current rates for electricity and gas on my tariff
So with no further ado, let’s breakdown the returns from the panels:
co2 Saved (KG)
Feed In Tariffs
2755 kW x 6.68p
Solar Consumption (House)
621 kW (E) x 14.80p
Solar Consumption (Hot Water)
673 kW (G) x 4.13p
Breaking down the money saved via the solar panels and solar diverter. * We cannot double count the generation and consumption, but I’ve provided them as separate numbers
With a total install price of £7,931 (panels + solar diverter), this is equivalent to a yearly return of 3.75%.
This is a little on the low side of what I expected. I was aiming for about a 4.5% return. The missing June solar generation would have been an additional ~£13 of Feed In Tariff payments and I’ve only had the solar diverter installed for two-thirds of the year, so those numbers will definitely improve in 2020. At the current rate of return, I am therefore on track to breaking even in Year 19. I will be doing everything in my power to bring that down to Year 12!
The major difference in 2020 will be that I’m fuelling my electric car with solar power! As you saw above, over half of my solar power is being exported out to the grid at the moment – with the car battery able to soak up loads more of this electricity, I should be able to raise the solar consumption much higher and boost the returns as well. If I’m able to get to a 6% return each year then it will only take the 12 years I want for the payback period.
God I wish solar batteries were cheaper though, it would make everything so much easier!
I hope this has been an insightful look into installing your own solar array on your house and what the possible payback will look like. The ‘problem’, if you like, with our house is that it is already super efficient and we were already using well below the average electricity usage for a typical household of our size (roughly 120m squared). Like I said previously, on an average day we use between 3-4 kWh, whereas I believe the UK average is closer to 4,800 kWh(!).
People with larger houses (and therefore roofs) can install more panels than we can and can use the much cheaper, if slightly less efficient, versions and make their money back quicker. But we didn’t install all this purely for the financial side of things – we are choosing to use our money to reduce the carbon impact of our home as much as we can. I actually have an upcoming post on how even a small number of panels and a small 2-3 kW battery could drastically reduce your carbon impact, so stay tuned for that.
And with that, we’re done! Please feel free to share with anyone who has questions about getting their own solar panels installed!
“Ugh, my commute is killing me! Petrol costs an absolute bomb and I’m spending so much just to get to work and back!”
Xailter’s long suffering friend
After mentioning he should just bike it (until he told me it was legitimately 15 miles each way), I asked him whether he was adverse to riding a motorbike or moped to work. He said sure, but what’s the benefit of them? Well, I said, (in no particular order):
They are pretty cheap to buy (compared to a car)
VERY cheap to run
Have minimal maintenance
Insurance is cheap
You can skip traffic if you’re okay doing lane overtaking
And best of all, once you do a one day course called the CBT course you can ride an up to 125cc motorbike / moped which can generally do 45-50 mph. The restrictions are that you have to ride with “L” plates and cannot carry passengers and need to renew your CBT every 2 years in the UK.
“Sounds great!” he said and then off he went to look at bikes on autotrader or something.
However, an interesting question came back
“Hey Xailter, have you seen there’s electric ones as well? Are they worth looking at?”
I gave him a blank look and then told him I’d get back to him… but my interest was piqued. Are they any good…? I know all the reasons why electric cars beat the pants off most petrol cars, but does the same logic apply to motorbikes and mopeds? Could I convert another misguided soul to the electric transportation revolution?! The game was afoot!
For this post I researched some popular petrol mopeds and a couple of interesting looking electric mopeds. But I’ll just put this here in bold for all to see:
Disclaimer 1. I have not been paid by any company to pick their mopeds for comparison, I picked ones that looked comparable / interesting to me (as in I would consider either one). 2. I have passed a CBT course and did own a 50cc petrol moped for a grand total of 6 months. I am not an experienced rider, please do your own research before buying anything if you’re interested in the below!
Petrol vs. Electric Mopeds – the contestants!
Let’s have a look at the competition below and their respective attributes!
A comparison of the different attributes between a popular petrol and electric moped
I’ve picked what is apparently one of the most popular commuter petrol mopeds in 2018/19 and pitched it up against one of the most interesting electric mopeds I found in my searches. I would happily use either one if I had any use for a moped these days, but I hope you’ll agree that this should be a fairly equal match-up. I will, however, be rooting for the electric one because I really do think we need to stop burning petrol to get about. This is purely a theoretical discussion as I have not personally ridden either of these mopeds.
In short, however, the Honda has longer range and is cheaper (much like petrol cars vs. electric cars). But I have a sneaking suspicion that over the life of the moped, the electric one would come out cheaper overall. Let’s dive in and see how the costs match up.
Working out the ‘cost per mile’ for fuel
The Honda runs on good old fashioned petrol. I will be using the price of £1.29 a litre as that has been fairly consistently the price of 95 unleaded petrol in my area for months now. Adjust with your own prices below if you wish. The formula to work out cost per mile goes like so:
( Fuel tank capacity X Petrol price per litre ) / Range of vehicle
For our Honda Vision, using the values in the table above we end up with the following:
( 5.2 litres X £1.29 ) / 137 miles = £0.0489/mile or 4.9p/mile
For an electric vehicle, the formula is similar but involves your electricity rate instead:
( Battery capacity X Price per kW ) / Range of vehicle
For myself (I have a very cheap overnight rate for charging an EV), I end up with this result:
( 4.2 kW X £0.05 ) / 70 miles* = £0.003/mile or 0.3p/mile
*I’m assuming the lowest range for this calculation, highest range (106 miles) would be 0.2p/mile
You may notice that 0.3p/mile is quite a bit lower than 4.8p/mile. However! The electric moped costs an additional £797 sterling! That would buy quite a lot of petrol to fuel the normal moped. Therefore what is the cross-over point, or number of miles you would have to ride to equal the costs based on just fuel?
Therefore, so long as you ride at least roughly 17,000 miles during the lifetime of your ownership of the electric moped, you will at the very least break even. For comparison, my old and pretty fuel efficient Ford Fiesta 2009 achieved an average of 42mpg. The cost per mile worked out to roughly 14p/mile!
The petrol moped would be 3x cheaper to run than my old car, but the electric moped would be nearly 45x cheaper(!).
The electric moped goes in for the kill
My friend does a 30 mile commute (15 miles each way) 5 times a week and his car gets about 35mpg. This is equal to roughly 17p/mile. With some fancy maths, we can work out that his weekly commute is costing him: £25.50 a week or about £112.20 a month (assuming 22 working days a month). Let’s calculate the payback period for the above mopeds compared to his car.
Vehicle Cost (£)
Cost per Mile
Monthly Cost (£)
0 (already owned)
0 (already owned)
A comparison of payback periods between the mopeds and the car
It’s amazing how close the payback periods are actually – I was expecting the higher cost of the electric moped to cause it to take longer to earn its keep. But it’s dead close! Of course, after the payback period of ~30 months, the electric moped runs away from the petrol one with it’s lower ongoing costs. It’s hard to beat £2 a month of fuel costs!
A look at the more interesting features
What really caught my eye on the NIU N-GT was actually the above. Removable batteries. Whenever I read about electric vehicles on more mainstream news websites, in the comments there is the inevitable cry of “but the batteries will die in 12 months and then you’re screwed!”. Yes, lithium-ion batteries do degrade over time. But it’s not that damn fast. I do acknowledge that it’s a pain to remove batteries from electric cars and replace them (you need to take them to the garage). Well here’s a great solution where you can simply buy a couple of spares and your moped is as good as brand new!
Additionally, you can charge the moped one of two ways. You can plug it in (like the image at the top of this post) or you can remove the batteries and charge them with the supplied charger (you can charge both at once). Most electric mopeds I researched had really slow charging rates – as in they had ~30 mile range but took SIX HOURS to recharge! What the hell is with that crap charge rate?
The NIU N-GT can recharge from 0 to 90% in 3.5 hours and has over double the range. That’s a pretty big difference, so kudos to them.
Charge at home and the office?
Due to the removable batteries, this is an electric vehicle you can own if you live in a flat or don’t otherwise have access to a drive. You can also potentially charge for free at work! Remove a battery or two (they weigh 11 KG each apparently, be careful) and find an empty electrical socket (and get permission from your employer) and you’re commuting for free!
If my employer was handing out free petrol I would certainly be taking advantage of that.
And I have to add this, because I’m me, but if you have solar panels you would also be able to top up the batteries at the weekend potentially for ‘free’. Try and create your own petrol at home and see how that goes!
I didn’t know where to put this other stuff, but here’s some other interesting features I liked the look of on the NIU N-GT:
Has an app that let’s you view stats and battery charge
Moped has GPS and alerts if it’s moved
Over the air updates – just like a Tesla!
The batteries seem to have a slew of charging safety features
Regen braking – increases range by converting braking energy to the battery
A strong front LED light to make yourself visible
It has a USB port so you can charge your phone on the go!
I’m honestly disappointed I don’t have a need for an electric moped. If I had a regular commute that was <40 miles and didn’t involve motorway driving, I would probably have tried to purchase one of these things already. They really have come a long way in the past few years, and as battery technology improves I think they will become ever more popular to own and ride for the commuter looking to reduce their outgoings.
Add on the fact that, in London, a moped (either of the above models) doesn’t have to pay:
(Don’t worry, I haven’t gone completely barmy, there is some logic behind that title.)
This is one of those things where I offhandedly thought about something and then got stuck in the rabbit hole of my own creation trying to work what the actual answer was and if it was at all relevant in the grander scheme of things. The answer to the question you don’t know yet turned out to be kinda interesting, so here I am sharing my findings with you and why I opted to go buy a new kettle.
I swear I’m sane. Bear with me.
How much does it cost to run your kettle to make a cup of tea?
It’s a surprisingly simple calculation once I google’d the right words:
(# of litres of water X temperature change X 4.2) X (electricity rate in p / 1000)
Or if you’d prefer that with some actual numbers, assume the following:
My old kettle had a minimum fill of 1 litre, so we use 1 here
Roughly, water is at room temperature of 15 degrees Celsius and we’re heating it up to boiling, otherwise known as 100 degrees Celsius
4.2 is the specific heat capacity of water (how much energy you have to put into it to make its temperature increase)
And my electricity rate is 15p
Put it all together and you get the following:
(1 litre X (100 – 15 degrees) X 4.2) X 0.015 = 357 watts X 0.015 = 5.4p
Thank you Xailter, my life is now complete
The story doesn’t end there though. I was actually looking into whether a kettle existed that let you modify its power draw. Most kettles pull about 3000W (3kW) through the plug to boil the kettle as fast as possible. I was thinking that if I could limit the power draw to about 1000W then I could basically boil my kettle for ‘free’ from my solar panels. During winter, they don’t produce a whole lot more than that.
Turns out that is not a thing that exists.
But I did stumble upon a breed of kettles that let you change the temperature the kettle will stop heating at. I never knew this was a thing! Even better, these kettles let you boil an incredibly small amount of water as a minimum, instead of the whole 1 litre I had to boil each time which mostly got wasted! I had to experiment further.
So here’s my new kettle
Why is this relevant? The main points here are:
You can boil a minimum of 250ml compared to my old one’s 1 litre minimum
You can choose the water temperature from: 70/80/90/100 degrees Celcius
Before, if I wanted a brew, I burnt through 357 watts to get the hot water I wanted to enjoy my delicious cup of tea. If instead I’m heating the bare minimum to get my hot water and I’m only heating it to the temperature I want, then the inputs to the equation change and it now looks like this:
(0.25 litres X (70 – 15 degrees) X 4.2) X 0.015 = 58 watts X 0.015 = 0.9p
Or an energy saving of 6.0x the amount of electricity! Damn, I didn’t expect it to be that good! In reality though, I’ve found coffee at 70 degrees to taste… not great, but I can’t tell much of a difference on the 80 degree setting. That is still a 5.3x saving win over the old kettle.
So you can retire tomorrow then on your savings?
No, of course not. My wife or I probably boil the kettle 5-6 times a day; we’re real tea/coffee/hot chocolate fiends. A 4p saving each time isn’t much on its own, but add it up over the lifetime of the kettle and it will basically pay for itself, assuming your old kettle was an old crap one like mine. For example, assume I boil the kettle 3 times a day for a year (not an unreasonable assumption in an average household) up to 80 degrees:
3 times a day X 365 days a year X (5.4p – 1.02p (80 degree cost)) = £47.96
My new kettle cost £54 from Argos (no idea why the price is so high now). Even if we assume you only save half the amount above (boiling 500ml instead for two people all the time), the kettle easily pays for itself in 2 years. After that you’re home free and up on the deal. Who doesn’t want an ROI (Return on Investment) of over 50%?!
Oddly the best thing is, I haven’t even changed a habit. Put water in kettle, up to the line. Put kettle on, make sure it’s set to 80 degrees. Enjoy delicious beverage. Easy. Everyone can start doing this right now and enjoy the savings and you have to change nothing in your life.
I am a tech geek at heart. New graphics cards and processors? Tell me more! There’s a new version of Windows 10 coming out, tell me all the new features I can play with! There’s a new phone out that has built-in radar components and can map a room?! Awesome (if horribly impractical and battery hungry)!
My wife and I moved into our semi-detached house in 2017, selling both our flats at the time. Now while I loved my flat very much, it was missing a couple of things that bugged me. It didn’t have a roof I had sole access to, and it didn’t have a drive (it did have a parking space – a rarity in some parts of where I lived!). That meant my “super green solar” plans were never going to happen there. But now I was free of those restrictions, I had the opportunity to experiment with all that cool tech!
The key part – solar panels
None of the below would be possible without solar panels. 95% of people in the UK get their energy for their home via the national grid (electricity), gas and/or oil. You are completely at the whim of your energy supplier for whatever they charge to supply and meter you. You can move supplier (and I fully encourage you to check you’re on the best deal for yourself!) but at the end of the day, you have zero control where your energy comes from.
I’ve wanted solar panels since I realised they were a thing and the price has been steadily dropping even over the past few years. I got my 3.6 kW array installed in November 2018 and therefore have over a full year’s data which I plan on sharing in a future post for this series. This post will detail the plans and achievements of The Solar House Experiment (TSHE) so far, with more detail for each component in their own post. I’ll also include the financials and maths that went into deciding whether each component was worth it or not and hopefully save you some hassle in each post!
The grand plan
The Solar House Experiment plan currently consists of the following parts:
Solar Panels – required to generate the “off-grid” carbon-free electricity in the first place. I was fortunate to get in before the Feed-in-Tariffs disappeared.
Smart Meter – required to get the best tariffs for solar batteries and EV charging at the moment.
Solar Diverter – these take excess solar energy from the panels and dumps it into your hot water tank, providing free hot water!
Electric Car – put “fuel” in your car with the excess energy off your solar panels! They are also exceptionally cheap to run on a day to day basis, but not really “part of the house” per se.
EV Charger – required with the electric car, in order to charge it at a rate measured shorter than “days”.
Solar Battery – stores excess solar generation for use when needed, such as when its dark or cloudy and the panels can’t supply the house fully. Arbitrage opportunities may be possible with selling stored electricity to grid in the future.
Smart Thermostat – heats the house / hot water at low carbon / low price hours.
The fantastic thing about this plan is that everything is quite modular, once you have the solar panels anyway. I’ve been slowly adding new pieces to the house system over the past year and a bit and they all work pretty effortlessly together after the software is setup correctly.
The only things I don’t have installed yet are the solar battery and the smart thermostat, but the reasons for this will be discussed in the relevant articles.
What did it cost and why on earth go to all that hassle?
Amazingly, once I researched and decided what products I wanted and got a few quotes for the installations I couldn’t do on my own, it’s only taken about a week’s worth of time to get everything installed and setup. Here’s an actual price guide for each part of the system so far:
Solar Panels, Micro-Inverters, Monitoring Software, Installation
1. My wife and I split this cost 50/50 between us (because she’s awesome). 2. I went for top spec panels and micro-inverters due to space constraints and plans to expand the array at a later date.
I have not bought or installed this, and may not ever have one.
Electric Car (Nissan Leaf / Tesla Model 3 / Renault Zoe / etc.)
1 day (pickup)
An electric car isn’t needed for the house, but including for completeness.
8,885 (no car) 16,885+ (with car)
The costs to buy and install the various parts of the solar house experiment so far
So as you can see from the above, I have a top-spec solar setup for just under £9,000. I tend to buy the more expensive models/variants of the various categories because they offer extra features I find worthwhile. For example, I fully believe you could get the same number of panels (I have 11 on my house) that produce ~15% less power for nearly two-thirds the price. The micro-inverters could also be replaced by one main inverter and you’d save about another £500 on the above – but your panels may suffer some efficiency loss – do your own research. My panels and micro-inverters carry a 25-year manufacturers warranty and are made by very reputable companies so I’m not concerned about panel failure.
There are also much cheaper EV chargers, solar diverters and smart thermostats. I bought and installed the ones I have because they can communicate with each other and provide additional features to maximise my solar usage. For example, with this setup my house will divert solar power in the following priority:
Normal Electrical Loads (Kettle/Oven) -> EV Charger (Car) -> Solar Diverter (Hot Water)
That means that when it’s bright and sunny outside and we’re not using anything particularly electrically heavy in the house (like boiling the kettle), the car’s battery is slowly being topped up. At max output in summer, the car could be gaining nearly 12 miles of range an hour! If the car is full or unplugged then the rest is dumped into the hot water tank, saving us money as instead of the gas boiler heating the water, the immersion heater is activated and draws as much power as there is excess solar power.
If there’s minimal load in the house, the car is full/unplugged and the hot water has reached temperature, then it is passed out to the national grid where it is hopefully off-setting someone else’s coal/gas/nuclear powered consumption.
That’s great and all… but why?!
A few reasons, but let’s do them from most important to least:
Global Warming – I think this is the biggest threat to our planet, unless someone gets nuke-happy, in which case we’re screwed either way. I have the means to reduce my fossil fuel use considerably and for a pretty minimal cost. Every step we collectively take to reduce carbon emissions as whole is a win. And I don’t care what other countries are doing – do your bit if possible. I’m putting my money where my mouth is with this experiment.
Lower on-going costs – Having solar panels and all the fun toys will (eventually) lower my on-going day to day costs. I need to tally up all the sums first, but I’m fairly sure after Year 11 of installation the panels will have paid for themselves and every-thing after that is just gravy. I’m deferring saving the cash now for the possibility of lower costs in the future (bit like saving in a pension, no?).
Regain control of production – I have essentially bought ~15 years of electricity up front and the means to use it. How high do you think electricity prices will be in the next 5 / 10 / 20 years? I know my own electricity rate has jumped from 11p to 15p a kilowatt in the past 5 years. Perhaps solar panels are a good inflation hedge? Eventually they may reach the point where I will install a solar battery and be as grid-free as possible and laugh at their price increases?
It’s just really cool! – This is a big one for me, but it’s a purely emotional thing. When the sun is out and bright – I know I’m slowly saving money. I get to have a hot shower in the morning and it was heated and powered by sunlight. When I get in my car and drive to work, I know at least a bit of the energy I’m using came from the sun. I’m not polluting the city streets with exhaust fumes. Imagine if everyone did this, what an awesome place the UK would be! (Obligatory comic link as well)
Anyway, that’s the basics of The Solar House Experiment. In future articles (they probably won’t be sequential this time) I will dive into the details of each part of the system. Why I picked the part I did, what other alternatives there are, expected payback times, dealing with the variability of the seasons. Oh, and a big article on just how much all this stuff is saving my wife and I in our day to day lives.
It’s a brand new year and already the articles are flowing on how to keep up your new year’s resolution of going to the gym and getting into shape. That’s not to knock the BBC article, it actually has some rather good advice in it.
More generally though, (having moved in the last few years between couch potato, pretty fit, to injured and back to fit, then back to couch potato) is how my attitude to exercise and other tasks in my life has changed. When something was ‘easy’ for me to do, aka required little to no thinking, I did it. When I had to actively force myself to do something, I generally gave it up after a couple of weeks. And then I started researching the background on this and how it has applied to other things in my life.
The easier something is to do, the more you’ll do it
The easiest changes to make are the ones where you modify an existing habit slightly, such as turning off a light switch when you leave a room. Takes a small amount of conscious effort to remind yourself, but takes literally a second to do. You were leaving the room anyway and light switches tend to be near the door. Overall, a small change but could make a big impact if you constantly left lights on all the time (*cough* my parents *cough*).
Equally, when I lived on my own in my flat and had a regular commute, I built a set routine for when I came home of a weekday. Get in the flat, put on Insanity DVD (no subscription service back then!), get changed to workout clothes, execute. I think I threw myself an incentive of allowing myself to watch an episode or two of Game of Thrones when that was still on.
Fast forward a few years and not only are my hours all over the place and longer, I’m living out of a multitude of hotels with varying levels of gym facilities and pretty much expected to join my colleagues for nights out, least I become a social pariah. When I get back to the hotel room at 9pm after a restaurant meal (not always a healthy one mind you), my thoughts turn to bed – not a hard workout.
Those were all excuses in the past paragraph by the way, but the moment something becomes just a bit difficult, it’s amazing how fast you decide not to do something, even if it is in your benefit in the long term. So, based on what worked for me previously:
a set time
easy to start, just turn on the TV
someone telling me what exercises to perform
duration of about 30-40 minutes
an incentive at the end
I purchased Ring Fit Adventure for my Nintendo Switch and am having a surprisingly good time from it. It’s not much of a “game” in the sense there’s not much real strategy to it, but let me tell you, losing to a final boss because you weren’t fit enough is one hell of a motivator. But it’s enjoyable and it meets my criteria above, so I have been able to keep doing this while stuck in hotel rooms for the past couple of months and my general fitness has been slowly but surely returning. I still have a long way to go of course, but any movement is better than none. I quite enjoy getting the achievements that I’ve done “xxxx squats”.
However, what works for me may not work for you. Try out different things.
This applies to anything you want to change
If you want to save more money or start writing a blog or get your body in better shape, you first need to set a goal of some description. Something achievable in a time frame that makes sense, else you’re going to get depressed you haven’t reached it. Then apply every nudge, trick and deception you can to yourself so that it becomes a habit – something you don’t even think about – you just do it.
Some tips to help you get started with your 2020 goals:
Publicly announce your goals – accountability of your actions to your friends / rivals will keep you on track. Supply a weekly update if possible.
Track your progress – progress may be slow, but if you see and feel yourself getting better as time goes on (the blog post counter going up/you can run a mile 15 seconds faster) then you will feel achievement and carry on.
Set reminders – my phone beeped at me yesterday to remind me to get writing and so I dedicated a couple of hours to blog writing – I am now nearly there with this post!
Don’t break the routine if possible – if people insist you do something that would break your routine, then remind them you need to do this (see #1). No friend wants you to fail.
Get plenty of sleep – it’s amazing how quickly I dip into ‘I can’t be arsed with this’ when I’m tired and fall back into old habits. Aim for whatever amount of hours you need to feel energised.
Apply disincentives to your current habits – “driving my car to the shops costs £x each time, whereas walking costs me nothing” (and you get a free workout!) or “a double cheese extra large pizza is 3 hours on a treadmill, perhaps I’ll switch to the tuna salad”.
Automate what you can – find and pay for a personal trainer, you’ll turn up. Send part of your pay cheque to a savings account you easily can’t access, you’ll save. Sell your car, you’ll have to walk everywhere (okay, that one’s a bit extreme).
I still need to ramp up my activity levels but I’m (slowly) getting to the point where I don’t wake up feeling like a beached whale with the changes in diet and exercise I do. I plan to accelerate this further and get back into weight lifting by the second half of the year (here’s my public announcement!), but that’s for a future blog post.
Once your habit is automatic, it becomes part of your life and you wonder how you ever did it any other way before.
Knowing your habits means you can change them
Do you put milk in your tea before or after the hot water? How do you write out today’s date? Do you put your loo roll “hanging-over” or “hanging-under”? Do you know why you do it that way? Most habits are pretty harmless – but we do most of them with no conscious engagement from our brains. We’ve always done it that way.
How about that multiple coffee a day habit (paid for or otherwise)? That afternoon snack you look forward to? Those 2 hours of Netflix a night? Habits are powerful, be aware of when you’re on auto-pilot and that what you are doing is what you actually want to be doing.
Now if you’ll excuse me, I have to go out-squat a boss who kicked my ass last night.
Hello there! As we embark on the transition of the old year to the new year, I thought it would be prudent to provide a post on what the hopes, dreams and ambitions of this blog will be for the coming year of 2020. Given I only started posting a few weeks ago, the content on the blog is a little light, but I’ve completed the first series ‘Road to FIRE‘ – a short guide to getting out of debt, getting saving and starting to invest and I plan to write more such guides in the future. But I’m getting ahead of myself – what is the purpose of this blog and what on earth am I planning to do with it?
Christmas and debt
I set myself the goal of completing the ‘Road to FIRE‘ series before the new year for a very simple reason. People in the UK get into an astounding amount of debt over Christmas. Just read the linked article to see how big the scope of this problem is. The ‘happiest time of the year’ is followed by the crushing reality of January and having to pay it all off. Some people won’t clear their credit card debt until May 2020! And that’s the ones who do actually clear the debt.
My hope is that they will stumble across my articles and maybe be intrigued enough to explore more and find additional sources that will help them out. I truly believe that if everyone in the UK was able to clear their non-mortgage debts and start saving up a 6 month cash reserve we would all be in a better place. That is the bare minimum I would hope the UK to achieve. It won’t happen overnight, but nudging even a few people on their way to this is worth me paying some pretty cheap hosting fees to WordPress.
Goals for Igniting FIRE
I am exceptionally lucky to be in the position I am. Sure, I work hard at my job, and with the relationships with friends and family, but I had an fantastic upbringing and was never near the poverty line. This gives me advantages, no doubt. I am also lucky to have been borne and developed an inquisitive mind and a hunger for knowledge. I can do maths and make an Excel spreadsheet dance. I wish to share some of those findings with you. Some you may already know, some you may never have thought about. I hope you, dear reader, can share your experiences with me as well and we can learn off each other.
My goals for the blog are:
First and foremost: get people to examine their financial and personal lives
Increase the readership and get people involved in the comments
Write about more personal topics and less focus on ‘do this’ guides
Explore sustainable living with various technology / environmental products
Showcase that large saving doesn’t mean small living (summary of savings post?)
Work out how WordPress works… bloody thing keeps eating my posts
Putting the personal in personal finance
Now that I have the ‘Road to FIRE‘ guide out of the way, I will be focusing on the topics more personal to me. I am not a ‘savings rate is all that matters’ type of person – I want some fun in the journey along the way. I have a huge list of topics, products, discussions and random trivia sitting on my hard drive, all shouting ‘pick me, pick me next!’. I don’t think I’m going to have issues with finding stuff to write about for a while.
For a small glimpse of what is coming in 2020, I’ll list some of the topics I am currently musing about (article names pending):
The Solar House Experiment – a new series looking at how we’re updating the house with sustainable technology and how all the synergies work together
Blitz Your Bills – a new series looking at the various outgoings of the UK public
A one year solar panel review (with real numbers!)
Tesla Model 3 Review – was it worth it?
Heat your hot water for free!
Quarterly updates on progress (?) – I’m still unsure whether to do a ‘numbers’ post
Exploring the UK electricity and gas market
Personal stories and how they’ve affected me through my life
Stay tuned for more
And that pretty much wraps up 2019 for me. I hope you’ve had a great year and are looking forward to 2020. See you there!