Is renewable energy now cheaper for you?

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I mostly stick to personal finance…but occasionally we catch a glimpse of The Escape Artist’s secret environmental agenda.

So today we are talking about renewable energy in general…and electricity in particular.

In the future, electricity will be cheaper.  And, as long as we don’t spend the money saved buying more crap, this will allow us to buy our freedom earlier.

I don’t claim to be an expert on electricity. But I’m pretty sure most people are doing it wrong…using too much electricity and paying over the odds for it. In the UK, around two-thirds of customers of the big six energy companies are still on expensive standard tariffs.

Let’s start by taking a look at how technology advances mean things are getting better and better every year. Here’s Peter Diamandis on solar energy:

In 88 minutes, 470 exajoules of energy from the sun hits the Earth’s surface, as much energy as humanity consumes in a year.

If humanity could capture 1 part in 1,000 (one-tenth of one percent) of the solar energy striking the Earth – just one part in one thousand – we could have access to six times as much energy as we consume in all forms today.

These staggering numbers, in combination with an exponential decline in photovoltaic solar energy costs ($ per watt price of solar cells), put us on track to meet between 50 percent and 100 percent of the world’s energy production from solar (and other renewables) in the next 20 years.

Solar is already undercutting coal and natural gas in sunny geographies.

Take a look at the plummeting costs…

solar costs

So the cost of solar power has been falling like a stone for years.  Government screw-ups interventions have sometimes obscured this…for example, the UK government cut feed-in tariffs in 2016 and this gave the impression that solar energy was no longer competitive.  But, despite the occasional…ahem…hiccup, the long term trend is clear. Solar power is getting cheaper and cheaper.

To be fair, UK governments over the past 40 years have mostly done a great (and under-appreciated) job in weaning us off fossil fuels and moving towards a situation where UK electricity generation is based on home grown renewable energy.

To understand how profoundly and recently things have changed, consider that it was only in April 2017 that Britain first went a full day without turning on its coal-fired power stations…for the first time since the industrial revolution got going.

In April 2017, the Financial Times reported:

Engineers in the National Grid control room watched the share of electricity from the country’s shrinking number of coal power plants sink to zero at about 11pm on Thursday night. It stayed that way until midnight on Friday, making it the first working day in which no electricity came from the fossil fuel that has been a bedrock of the UK’s energy system since the first steam-driven public power station opened in the 1880s.

“To have the first working day without coal since the start of the industrial revolution is a watershed moment in how our energy system is changing,” said Cordi O’Hara, director of UK system operator at National Grid.

Coal disappeared from the power system at certain times of the day last year (2016). But its absence for an entire working day underlines a crash in the use of a fuel that accounted for 23 per cent of UK electricity generation as recently as 2015, but in 2016 slid to just 9 per cent.

“The first country to use coal for electricity is now on the cusp of being the first major economy to completely phase it out,” said Ben Caldecott, director of the sustainable finance programme at Oxford University.

Coal power has faded as wind farms and solar parks have blossomed around the country, spurred by green subsidies introduced to help the UK meet legally binding targets to cut greenhouse gases by at least 80 per cent from 1990 levels by 2050.

Between June and September over half (52%) of UK electricity generation was met by low carbon sources, compared with 35% four years ago. And on a sunny Friday in May 2017, solar power produced about quarter of total UK electricity generation.

September 2017 saw the opening of the Clayhill solar farm in Bedfordshire (not famed for its year round sunshine). The site has over 30,000 solar panels and is able to generate 10 megawatts of power, enough electricity for 2,500 homes. What makes it interesting is that it was built by private company Anesco without any government subsidy.  This suggests that solar energy is now cost competitive – with or without government support – even in not very sunny places.


And as solar roof tiles improve and get cheaper, we should put these on more homes and office buildings and gradually return fields to agriculture or, even better, woodland.

And its not just solar that is getting cheaper. A Government energy auction in September 2017 showed how cheap wind power has become. The price of offshore wind came in at £57.50 per megawatt hour, the same as conventional gas and much cheaper than nuclear. This challenged the old thinking that you could have green energy or cheap energy, but not both at once.

Some perspective is helpful here. For the last 50 or so years, the West was pathetically dependent on fossil fuels in general and on imports of oil from the Middle East in particular.  Remember how quickly fuel blockades by lorry drivers created chaos?

This led to some situations where, at best, we turned a blind eye to nasty Middle Eastern dictatorships with their brutal attitudes to women, dissenters and democracy.  And, at worst, we fought wars in which a lot of people died.  Domesticly generated renewable energy plus electric vehicles offers the tantalising prospect of energy security…where we can’t be held to ransom.

The Escape Artist is old enough to remember the 1980s when people complained that the government was cruelly destroying coal mining by failing to subsidise loss making pits.  This should remind us how people often resist change even when its positive and environmentally friendly. As a forward looking OPEC oil minister once said: the Stone Age didn’t end because we ran out of stones, it ended when a better technology came along.

In November 2015, the UK government announced that all coal-fired power stations would close by 2025 as part of bringing down UK carbon emissions.  The Ofgem graph below shows the striking change in the electricity generation fuel mix over the last 10 years and suggests that coal fired electricity production will probably finish sooner than 2025:


Its amazing how far the UK has come just in 10 years in reducing our reliance on coal and oil….at least for electricity generation.  And with electric cars now becoming popular, we’re starting to tackle our oil addiction in transport as well.

The traditional problems that have held back mass adoption of renewables are being quietly solved.  For example, one traditional problem with renewables such as solar and wind power has been their intermittency (variability of output) combined with the lack of utility scale storage. This has meant that the grid has not been able to store surplus electricity created by solar (when its sunny) or wind (when its windy).

Battery technology has (up until now) only been able to store small amounts of electricity…enough to power a car or a household for a few days….but not enough to power a town or city.  The traditional power grid has not stored electricity…it simply generates it and then distributes it. Surplus electricity was lost.

But large battery technology is progressing rapidly, thanks to super-brains like Elon Musk. And the spread of electric cars creates an opportunity to store huge amounts of energy on a decentralised basis.  Imagine if people with electric cars could take cheap surplus electricity from the grid when available…charging their car batteries to take advantage of the surplus.   They could then either use the electricity to drive their car…or power their home…or sell it back to the grid at peak times at a profit.

That’s enough big picture optimism for now.  The Escape Artist believes in getting his own shit together before handing out lectures…so let’s get back to personal finance basics.

First, ignore the news media who re-run the same old stories about “greedy” utility companies and rising prices.  It’s mostly bullshit.

Then focus on what you can control. When The Escape Artist becomes Emperor of All Galaxies, people that can’t be bothered to move to a cheaper tariff will not be allowed to complain. The correct approach is:

  1. Get yourself on a low cost tariff; and
  2. Keep some perspective and remember that for most of human history, life was grim and there was no central heating in winter. We are now living in a time of amazing abundance.

In December, my gas & electricity tariff came up for renewal so I checked the market for the best deal using the MoneySavingExpert Cheap Energy Club.

I switched to Bulb, a fast-growing new energy provider which now has >250,000 customers. Bulb sources 100% of its electricity from renewables and has one of the lowest tariffs on the market (lower than non-renewable providers). And their electricity works just fine! 🙂

I have no other affiliation with Bulb but, if you want to switch to them, this link gives you (and me) £50 cashback.


  1. ladyaurora · · Reply

    I enjoy lectures from TEA
    He’s my financial /Life guru.

    1. Ssshhhh! Don’t use the G word! 😉

  2. Julie Knox · · Reply

    Great read! I’ve been doing a lot of research in this field recently and the question of the respective roles that government, industry and consumers should/can play is pretty interesting. The picture is different here as we don’t have the same level of government intervention so we are reliant on industry driving change – which means we are more dependent on good old market dynamics – which are as you say finally beginning to shift in favor of renewables. Pretty exciting stuff.

    1. Yes…and you have sunshine there!

  3. roopelahtinen · · Reply

    This is a very interesting topic and I would love to hear if TEA sees any particular investment opportunities in this field?

  4. Tory George Osborne’s 2014 budget quietly slipped in a rule to discourage growth in community energy schemes, to protect the ‘big six’ providers.

    1. Thank you for your comment Stephen. Please can you confirm that you are not a Big 6 customer? Who are you with?

      1. No, I’ve not been a Big 6 customer for many years, use mainly ethical provider for domestic needs (when they’re not over-priced) and just switched to Bulb via your link.

      2. Fantastic! In which case, you are allowed a pop at Tory George Osborne 😉

  5. Survivor · · Reply

    There’s a serious psychological block in the UK with switching, for a significant % of the population – I checked out bulb & will switch [I do so annually] as soon as free of my current penalty period.

    But when I tried to persuade a close family member just today, they baulked, even though I raised an accurate quote on the spot, showed a decent saving existed & offered to do the admin work. On pressing for the reasons why they refused, I just got rambling cognitive dissonance in the form of non-answer answers that make no sense at all.

    I went as far as offering to cover them if they had any losses, to see if the reluctance was related to a fear of being ripped off …..& still no movement. So I ruled out apathy, fear of loss & worry that it could be a mistake – leaving me with no clue why some people just wont switch. Does anyone else know what’s going on with this – my interest is not just OCD with this minor point, but because I think it may be a cognitive bias that goes to the heart of why people flunk with all their finances?

    1. I think humans tend to like to stay in their comfort zone (status quo) where what they know is familiar, even though change might not be as different or foreign to what they are used to. There is a certain inertia to making changes. I read the Power of Habit by Charles Digg who suggested how habits are formed by cue, habit and reward. And it is not always very straight forward what will motivate a habit change. Perhaps their minds are not motivated by the rewards you offered. Curious.

  6. Unfortunately it’s much harder to switch providers if you’re an electricity generator as the additional paperwork is onerous and you face significant delays moving your FIT as well as your supply.

    I sighed a heavy sigh when the MSE Cheap Energy Club informed me that I could save my target (£150) by moving from my variably tariff to another big 6 provider last summer (July). It was the end of November before everything was squared away!

    We’re also unable to get a smart meter, as they don’t play nicely with our solar panels.

    Still, the rewards are very much worth the hassle and my Jokeresque rictus when I sat watching TV with the Christmas tree and house lights on ‘for free’ on a bright December morning in darkest Scotland must have been a sight…

    Like TEA, I’m on a secretish environmental mission. Solar panels, LED bulbs and A+ devices as a minimum have slashed our electricity usage, while a new boiler, thick underlay and carpets and decent curtains/shutters have halved our gas bill. It all helps. Not a great ROI, but money isn’t everything.

    1. The Rhino · · Reply

      That sounds annoying.

      On a more general note, for those who just consume rather than generate, what blew my mind was that smart meters aren’t generic, they are provider specific. So you can have one installed, change provider, then very possibly need the old one removed and a new one installed. Madness?

  7. Great post man! I’ve been charging all of my gadgets by solar for years now, such as tablets MP3 players in my smartphone etc. I live outside the Washington DC region and my city is now experimenting with a solar company about making deals to feed the grid. I hope they finish the experiment soon and it works out because I will be one of the first in line to get solar on my roof and hopefully I can sell some energy back to the grid as well. It’s about damn time!

  8. johnbarber1 · · Reply

    On the other side of the FI coin – which one will you be investing in TEA?? 🙂

    1. Good question…others have asked the same thing…I’ll write that up soon on the portfolio website.

  9. I was going to swap to this one anyhow but you’ve prompted me to get on with it! Glad to be earning you £50 as I love reading your posts. Hope to make a little money from sending my own link for the £50 on now !

    1. Just read the other comments though. I was with a big 6 prior to this swap today and have one of their smart meters. Will this cause an issue?

    2. Great, thanks…you’ll get some £50 referral credits as well…ask Bulb re Smart Meter

  10. We have solar panels and they generate for us (we still have to use the grid because have no battery to store), we export to the grid (and what we get paid is roughly 6% annual return on what we paid for installing the panels) and it feels so good to use the power of the sun (not to be sniffed at; guilt is as good a way to environmentally sustainable habits and behaviour as any). Oh, also we are in Manchester, UK which is not know for its sunny weather.

    I think you are right and sustainable energy is not only getting cheaper but this will continue. From what I’ve followed, there is a lot of work (research and development) going in developing solar generation panels using new material (graphene is muted to be a way ahead), ways to store energy (Tesla is probably more important for that than the cars, sexy as the cars are) and transporting electricity long distance (solar farms in the Sahara desert can power the world were it possible to transport what is generated).

  11. Excellent overview. Love the environmental angle. I switched gas + electricity to Ecotricity several years ago, I know they are not the cheapest so i probably need to price check soon (there are also Good Energy and Ovo) but I love their eco mission.

  12. I’m in. Just switched after realizing SSE had put me on their “standard” tariff without bothering to mention it or anything. Enjoy your £50 🙂

  13. Switching to Bulb now after I’ve got a quote and seen the difference!! Their customer satisfaction also looks great. Thank you for sharing.

    1. Excellent, well done and thank you Matt and lolkin 🙂

      1. I’m on OVO 100% renewables tariff which is great but a little more expensive than their non renewable one. Which is a bit of a swizz really seeing as renewables are now at parity or cheaper most of the time.

        Will defo check out the bulb quote and switch when I can! Cheers for the link as well 😉

  14. Finally got around to switching to Bulb, I’d been waiting for my fix to end. Enjoy your £50, TEA! A few days later I got an email from Bulb to say their prices are going up 2.8%. Sod’s Law. 😉

    Ahh well, they seem like nice people to do business with so far, are still a bit cheaper than where I am (with the £50) and no doubt other providers will be putting up prices soon.

    There’s also no exit fee of course so if it makes sense to move later, I’m free to do so.

  15. Very objective analysis on the pros and cons for the feasibility of renewable energy.

  16. […] futures ain’t that. Oil’s a dying business. Renewables are getting dramatically cheaper (10). Frugality, environmentalism and renewable energy sources go hand in hand (11). Big oil companies […]

  17. Love your financial independence stuff. I also enjoyed the optimistic analysis of renewables, but I do despair a little as someone who works in the energy space – energy is an area never short of armchair experts. There are national bodies that advise government on this (Committee on Climate Change and Energy Systems Catapult), and while they do say that renewables like solar and wind will grow to take up a big share of electricity in the future, we still need firm, low-carbon power for when the sun doesn’t shine and the wind doesn’t blow (batteries at the scale needed simply don’t exist and would be an environmental disaster in terms of mining and carbon emissions, anyway). For the UK this basically means we need a good chunk of nuclear – YES, before you say it’s “too expensive”, that wind and solar is cheaper, I know. Wind and solar have got cheap to install, and that’s fantastic, but as you yourself are fond of saying: price and value are not the same thing. The value of electricity from solar and wind falls dramatically as their share of energy grows. It doesn’t matter how much money I pay, I can’t get electricity from wind and solar on a dark, windless evening (ask California right now).

    Rant over! If you want to read more, check out the below link or follow me on twitter @ecopragmatist.

    Keep up the good work!


    1. Chill bro. I’m pro-nuclear (modern nuclear MUCH safer according to those in the know) and agree it works well for baseload. Plus better storage is coming.

      1. David J Watson · · Reply

        Cheers! I’ll try to chill 🙂 I don’t want to be “that guy” in the comments section.

        Nuclear already safest form of energy, but yeah, advanced stuff even better; sort of obvious really, look at how much safer cars are today compared to 1970. Humans are clever!

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