But their great idea to deal with the shortage is intermittent availability of power. You won't be able to wash your clothes when you feel like, you will have to adapt to when there is spare power, like in developing countries. This is just a regression in technological progress.
I saw the same messaging in France where the current president started his mandate with a grand programme to switch off a third of nuclear power plants.
If anyone thinks adults are in charge, let alone engineers, you are greatly mistaken.
For a long time (several decades) electricity demand has been decreasing in the UK, largely due to efficiency improvements. But now days pretty much everyone agrees that electricity demand will increase significantly in the future due to electrification. The UK has been planning for this for some time so if this guy was really from National Grid, he sounds like a bit of a rogue!
> "their great idea to deal with the shortage is intermittent availability of power. You won't be able to wash your clothes when you feel like"
No, nobody is suggesting that the grid will ever cut off power to anybody - certainly not domestic customers. The idea is that in a smart grid, big industrial customers often have the ability to temporarily reduce demand for heat or cooling or whatever. So if there is a signal from the grid that demand needs to be cut, automated industrial systems can (and already do) do that. The same goes for your car charging, water heating, etc. These things can automatically slow down during demand peaks in response to a signal from the grid, and you probably won't notice or care. You'll still be able to wash your dishes any time you want!
This is all definitely a good thing. A huge part of the cost of running the grid is in handling the biggest demand peaks, which might only occur for an hour or two per day a few times per year. If the peaks can be reduced and demand becomes smoother, then energy becomes cheaper.
The same is true about climate control. 1 or 2C from the desired temperature is still pretty comfortable but can make a huge difference in power savings, particularly if it's coordinated.
That said, I suspect that the even better route for power companies to go down is installing more grid batteries. Those can directly address and smooth out high demand. Put them at the various substations and you can shut off the main grid to the substation temporarily under high load.
And with more and more houses installing solar and battery, opting into shoring up the grid for a decent uplift in standard export rates would be of interest to many.
> had in mind that electricity demand should decrease
Does this mean the speaker wanted demand to decrease? The UK forecasts from the Future Energy Scenarios [1] show demand increasing (see page 21).
> intermittent availability of power.
I'm assuming this was related to demand side response. Page 37 of the Future Energy Scenarios pdf contains an overview of this.
I worked at an EV smart charging start up (Kaluza) between 2019-2022 and my experience doesn't line up with a couple of your points:
> You won't be able to wash your clothes when you feel like
During my time at Kaluza the customer could charge their EV whenever they wanted.
> you will have to adapt to when there is spare power,
The customer set their minimum state-of-charge (0-100%) and we would always have it charged to that amount by a specified time, irrespective of demand. We aimed to charge the customer's EV when demand was low (there are UK markets we can sell this ability to - these markets may have changed since I was there), which would save them money, but meeting the minimum SoC was the most important thing.
> This is just a regression in technological progress
Reducing peak demand reduces the amount of infrastructure you need and makes better use of what you have. IMO it's a good upgrade that makes much better use of the assets on the grid.
Vehicle-to-Grid (or Home) charging takes this up a level by feeding power back to the grid. This "What’s next for Vehicle-to-Everything?" PDF [2] is 4 years old now, but has some good data on V2G and the benefits it brings.
1. https://www.neso.energy/document/364541/download
2. https://info.kaluza.com/hubfs/What%E2%80%99s%20next%20for%20....
Matching demand to production where possible strikes me as a sane approach. Western nations have become very used to an incredibly high standard of living largely powered by disproportionately massive energy consumption per person. If it uses power more efficiently to dry one's clothes at night or run the dishwasher overnight, rather than during the day alongside AC and computers and whatnot, that seems eminently reasonable to do.
This sharp resistance to minor personal inconvenience is bananas to me. If the alternative is to bring massive battery storage or nuclear plants online, vs "hey, maybe charge your car overnight" or "hey, timeshift your AC use and add some insulation to your house," why wouldn't we do that?
The UK has the oldest housing stock in Europe, and most likely in the world. [0]
Roughly 30% of the stock is single-skin, without a cavity. While it's not impossible to insulate such walls, it's generally inadvisable for many reasons. The same goes for the roofs of these houses; although you will find many companies willing to spray your roof with foam or other forms of thermal sealing, those roofs were never designed to be insulated, causing other potentially catastrophic problems once it's been done.
Generally, the poorest and oldest people in society occupy these houses, but no matter; the government will ban the sale of gas boilers to coerce them in to installing heat pumps, despite them being incompatible with the existing pipework and radiators.
0: https://files.bregroup.com/bretrust/The-Housing-Stock-of-the...
Reasonable point, but I feel my case still stands: the population able to make these changes could do so, enabling existing infra (and housing stock) to "go further" before requiring expensive and disruptive overhaul.
> the government will ban the sale of gas boilers to coerce them in to installing heat pumps
I agree this is shortsighted, and it's better to incentivize more efficient systems rather than applying punitive strategies to less efficient ones.
That said, most properties in the UK don't have this problem. They _do_ likely need bigger radiators which comes with a cost, but a lot of these houses would benefit from just upgrading from their single panel rad with no fins.
I'm not sure any of that makes heatpumps technically impossible, but it makes them more expensive and less efficient
Further, it is possible to run a heat pump at high temperatures: some use refrigerants specifically designed to do this relatively efficiently.
Several energy suppliers websites have pages dedicated to this very topic.
The current 2035 target originates in the Heat and building strategy policy paper (2020):
"Our ambition is to phase out the installation of natural gas boilers beyond 2035."
In the Annex:
Aiming to phase out the installation of new and replacement natural gas boilers from 2035, once costs of low-carbon alternatives have fallen, in line with the natural replacement cycle, including any hydrogen-ready boilers in areas not converting to hydrogen, to ensure that all heating systems used in 2050 are compatible with Net Zero.
Given the energy policy of the UK, which to many engineers makes absolutely no sense at all, it's impossible to predict what will actually come out of the policy sausage factory next.
I assume you're in good health, not poor, in a stable living arrangement, etc. The burden of "minor personal inconveniences" depends greatly on how many inconveniences you already suffer. Somebody working two jobs doesn't have much spare energy for optimizing utility use.
Excellent point, and I agree, though the vast, vast majority of the pushback I feel I get when advocating for these kinds of shifts are from wealthy/healthy individuals.
It's a classic tragedy of the commons scenario: existing resources should be able to support our current level of creature comforts with minor conservation, even if a segment of the population is less able to support the conservation efforts, but the extremes people demand in turn place extreme load on our infrastructure.
Most of us don't. But smart meters are free in the UK, and if there was a way for my washing machine to have a 3h window overnight to run in to be done for 7:30 I'd do it in a heartbeat. Same for my dishwasher. Heating is a bigger issue.
There should be plenty of opportunity to load shift with other things though, a dishwasher as you mentioned, or a fridge or a storage heater or a charger for your electric car. All can be done with minimal inconvenience to the user.
Adding insulation is expensive, and awkward. If you have cavity walls that are uninsulated, it needs to be done right. If you have single skim walls you either do external cladding (and change the outside of your building), or build an internal stud wall and insulate that, which is very effective but costs a decent amount, reduces internal floor space, and requires a full redecoration after.
That's a uniquely American perspective.
Japanese homes often don't have space heating. The Swiss often keep their homes at 20°C in the winter.
Most of the globe doesn't travel everywhere by car. Arguably it's the intention to remove pain as much as possible which resulted in the opioid epidemic.
There's a point at which trying to get rid of inconveniences becomes harmful.
Chicago building codes require 68F as a minimum for residential in winter conditions, so I think that's reasonable as a "habitable minimum yet not necessarily ideal" benchmark: https://www.chicago.gov/city/en/depts/bldgs/supp_info/chicag...
I'm not saying human convenience should entirely take a backseat to machine efficiency; to your point, the very existence of these things is to make human life easier. My frustration is that Western approaches to these problems seem uniquely resistant to ever altering behavior for the sake of reducing ecological impact.
(Dishwashers were a poor example for me to use anyway, they're remarkably efficient; a better one might be water usage: it's best to water plants in either the early morning or late evening, so the water doesn't evaporate as much, but people often prefer to do so during the day, which coincides with high household water usage for showers/laundry/whatever. though, I routinely run my dishwasher overnight and have never had issues with grime, so long as I prime the hot water feed.)
Making peoples lives worse to save money is a capitalist mindset and I don't understand why so many left wing people believe in it. The promise of socialism was always higher living standards for the working class (99 percent) at the expense of millionaires.
I'd argue there's more ecologically sound ways to supply the desired energy demand in combination with shifting some of the load away from peak times. I don't think that strictly correlates to "a lower standard of living" so much as "there's minor behavioral changes that would more efficiently use existing resources."
> Making peoples lives worse to save money
This is exactly the mentality that I'm surprised by: I suggest shifting high energy use slightly and your reaction is "that will make my life worse." Would it really have a strong negative impact on your life to run your dryer overnight for your towels/sheets/whatever if it meant 50% cheaper power?
Absolutely. That thing is loud.
What if manufacturers developed quieter dryers?
In a london flat we rented, the washer-dryer was in a cupboard in the bedroom. So yes. At least it had one.
The misanthropy is infused in popular culture, and specifically in the way ecological sciences and history (for additional reasons) is taught in schools. I not infrequently have to discuss this with my kids when they recite something they've learned in school and I can hear the misanthropic cynicism in the framing and intonation.
Making your own planet less ecologically stable is certainly an interesting choice, but probably not the best long-term bet for anyone's kids.
If one consumed nonfiction media one might get a different impression.
That few in government are readying for that and are rearranging deck chairs instead is not particularly reassuring.
Now I'm not saying we should generate as much as humanly possible, because even with renewables that has a cost.
And some things have gotten genuinely more efficient (compare modern heat pumps to heating available in 1968).
But why shouldn't we maintain the levels our parents enjoyed? And use the extra capacity if anything for EVs, grid stabilization, medical research, etc.
So population degrowth is a pretty separate issue.
- climate change is having real measurable negative impacts already
- 90% of the shit we create is useless low quality junk and e-waste with a two years life expectancy
- green washing doesn't change the fact that the vast majority of industries are not compatible with long term sustainability
What are your argument for infinite growth at all cost?
Take the idea of not being able to wash your cloths when you want. What a step back! But instead get rid of your heated pool or turn down heating by two degrees.
People working on the grid and in utilities are coming at this from a completely different perspective than degrowthers, in my experience. Grid ops are extremely conservative, and utilities have not adopted new tech in decades if ever, so they look at the trend of the past decades and think "the future is going to be exactly the same." They are not thinking of the grid change we need to deal with climate change, at least in the US.
I only have deep understanding here in the US, but the "degrowth" subfaction of progressives are completely ineffectual, despite being very loud. They have zero influence, zero ability to organize into any sort of group with influence, and little desire to do anything except critique others. They can be safely ignored, because even their critiques are based on either very fundamental misunderstandings of the world, and they can only infect a very tiny subset of the population with their mind virus of ignorance.
Perhaps other places, like the UK, has a more politically effective group of degrowthers. But in order to even believe the things they believe they have to dumb themselves down quite a bit so if there are politically effective degrowth movements it may be time for me to reevaluate my position. Anti-vaxxers are far more effective politically, despite having just as poor critical thinking skills, but with the anti-vax movement individual action has big impacts, unlike with grid decisions.
Degrowthers, who have had some reasonable successes like the Passivhaus movement, are opposed by those same bot farms.
But yes I do agree about the impossibility of communication.
the logical terminus of the growth fanatics is to literally want to leave the planet so I think we ought to reserve the label 'alien' for them
It's not just degrowth mindset, but the dogmatic refusal to be pragmatic on energy. Given most UK homes are heated by gas and we have a lot of gas-powered power plants, it makes no sense for us to import natural gas where we can avoid it (especially LNG) as it's more costly and less green than domestic production.
Plus, domestic production means more domestic jobs and additional tax revenues.
It seems to me there's basically no upside of us refusing to exploit what we can of the North Sea. It's just people taking an ideological dislike to us doing it domestically because "fossil fuels = bad".
Some people also just seem wildly misinformed. For example, our media seems to think 50% of our energy problems stem from it being priced wrong. I guess we have the same problem with housing – maybe everyone could have a home if we just sold them for less. It's really very stupid.
I'm going to go with the degrowth, or the steady-state economics guys, they are more likely to be closer to the mark of what is actually achievable in the real world.
I've seen proposals that are less intermittent availability and more incentivized pushing of consumption towards periods of lower demand. We already have all these computers in our appliances, might as well let them do reasonable things ... your freezer probably does a self-defrost cycle triggered by a timer and/or a door open counter, but why not wait up to X hours for off-peak pricing to do it. Or push the set points down a degree or two during off-peak pricing, to reduce energy use during on-peak. Also works for HVAC subject to user comfort, and water heaters if you're careful and avoid high temperatures that cause injury or low temperatures that allow microorganism growth.
Of course, that's science fiction... all the communication in appliances is designed to collect data and serve targeted ads. :( So very few appliances know if current pricing is peak/off peak or when it will change.
Firstly, that doesn't sound like a particularly hard thing to accept if it genuinely helps. "I want to use my washing machine whenever I want" sounds like a very poor reason to destroy the environment.
However, regardless of that, this isn't new. There have been time-of-day based electricity tariffs for decades that are aimed at incentivising people to do more demanding things at particular times e.g. when industry isn't using the power. For example, https://en.wikipedia.org/wiki/Economy_7
What the heck? Where is your evidence that using washing machines at inconvenient times is going to destroy the environment?
If your argument is that any use of electricity from fossil fuels is destroying the argument, then nobody should even be charging their phones at night. Time-shifting washing machines isn't going to fix carbon emissions since they're going to be emissions at any time of the day.
I don't know how you guys in Europe managed to gaslight yourselves into justifying regression of social and technological development. A lot of these moral arguments do not make sense. You said it yourself -- industry is incentivized to convince the public to use less electricity during peak hours so they can pay less. It's pretty much a psyop by capitalists. And for some reason you're shilling for them even though presumably you're paid exactly zero buckaroos
The environment is going to be destroyed anyway, since the rest of the world will continue to use their washing machine whenever they want. [1]
The current European approach to climate change is completely bonkers and will only make Europeans poorer and miserable.
[1] https://ourworldindata.org/grapher/annual-co2-emissions-per-...
No they have even less money than Europe. They'll do the smart thing, which is using electricity when it's cheap.
The price of electricity is a function of demand with respect to supply. Even if the fuel is cheap, heavy demand will cost more to supply than low demand.
https://www.climatescorecard.org/2019/02/time-of-use-electri...
Degrowrh is a mathematical and physical inevitability, the only choice you have is to prepare for it or not
Lets say a house typically had 5 60W bulbs on for 8hrs a day, now replaced with an 8W bulb. That would be a 2 kWH reduction, which roughly corresponds to the drop shown in the data.
EDIT: actually now that I think about it, 2kWh per-household is probably less than 1kWh per-capita. It's still a good chunk though!
The main energy saver is simply that the newer LED lights are dimmer!
That said, UK manufacturing decline also correlates with this as that’s very energy intensive. Also don’t rule out fridges, old 90s fridges were very energy intensive compared to today.
> Improved efficiency is also supporting reduced use in the industrial sector – as has a general decline in GB industry and associated intensive electricity use
https://energy.drax.com/intelligence/2024-the-year-electrici...
> This is part of a larger trend. Demand has been falling by 5 TWh per year since 2005. Improving efficiency (lighting, televisions, fridges, etc.), fewer homes using electric heating, and deindustrialisation all play a part
The UK household has quite significantly cut its power due to all these power saving innovations, far in excess of the actual drop because industry has increased its percentage of the mix over time.
Computer fleets across a country do not upgrade immediately so the lag may contribute.
And ACPI was just one energy saving initiative of that era.
I was surprised how the small amount of infrared from them makes rooms feel more pleasant to be in. It's a warmth on the skin, rather like having a fireplace going.
If I weren't paying the electricity bill, I would totally fit them everywhere.
It's nothing at all like having a fireplace going - unless they're on fire, in which case both of you have a problem.
Currently paying 0.33 usd a unit.
In fact, if it DID make financial sense, wouldn't companies already be buying up empty/cheap space and then turning a profit after the payback period? Why aren't they?
There are other reasons to do this, but purely on the financial side, I'd want to see the numbers on this one. Again, this isn't about solar, the claim was about battery + inverter + time-of-use paying for itself.
Incidentally, the grid only knows about my exports. Self-consumption manifests as demand reduction, so UK solar production and electricity consumption is probably higher than aggregate figures suggest.
Capacity auctions are iirc pay as clear. Maybe day ahead as well.
One thing to consider as well is that without some external stimulus scheme all of the fossil/nuclear (even ignoring CFD schemes) would immediately go bust IIRC if the market was solely pay-as-bid because wind and solar are cheap but extremely spotty so the price would either be 0 or 1000, probably not the latter long enough to keep the gas plants we currently rely on in business => no more power on cold calm nights.
There are lots of factors that feed into this: lots of solar, batteries, more efficiency, improved insulation.
Some others: increase of heat pumps, energy poverty, reduction in industrial energy (both due to good and bad reasons)
Ultimately though, its not about how much energy per capita, its about the sources of energy, and how effectively they are used... my heat pump uses infinity more electricity than my boiler, but far more effectively uses the underlying energy source.
If people are just going without, then that's generally bad.
[1] https://www.ons.gov.uk/peoplepopulationandcommunity/housing/...
Energy is what allows modernity to function, we have made it so expensive that no one can make anything in Britain just in time for hard power and manufacturing to be really important again.
Chemicals, metals, pottery, glass,fertiliser etc are all basically impossible to do competitively in Britain.
edit: helpful robot boyfriend plotted it https://i.imgur.com/Hp199vV.png
I see a lot of comments here see "per capita" and think "residential consumption" - but the decrease is more indicating of general deindustrialization
https://en.wikipedia.org/wiki/Three-Day_Week
> From 1 January 1974, commercial users of electricity were limited to three specified consecutive days' consumption each week and prohibited from working longer hours on those days. Services deemed essential (e.g. hospitals, telephone switchboards, supermarkets and newspaper printing presses) were exempt. Television companies were required to cease broadcasting at 22:30 to conserve electricity [...] The Three-Day Week restrictions were lifted on 7 March 1974.
But nonetheless: https://www.gov.uk/government/statistical-data-sets/historic...
Year Avg consumer price in today's money
1975 13p/kWh
1985 15p/kWh
1995 n/a
2005 11p/kWh
2015 17p/kWh
2025 26p/kWh
1) we have to pay off operators for the billions of foreign investment they put into new wind and solar farms and grid storage batteries. If we didn't tempt them with a good RoI, they'd invest elsewhere, and we'd still be burning coal. The cost of this is going down year on year: https://en.wikipedia.org/wiki/Contracts_for_Difference_(UK_e...
2) we're paying for new transmission capacity and replacing worn out transmission route. The fact we don't already have it, which we could've had by charging more for electricity in the 2000s and building it out decades ago, is why today we face enormous curtailment costs today, as we can't get all this wind power from where it's generated to where it's consumed: https://www.telegraph.co.uk/business/2026/10/05/the-bottlene...
3) our market arrangement is based on everyone bidding to supply power, and we pay everyone who generates the same rate as the highest necessary bidder. Thus the moment that there isn't enough wind power, or there is but it can't get to the region it's needed (see point 2), in come the gas turbines and given that Russia's trying to destroy Ukraine, gas is astronomically expensive. The sooner we solve our bottlenecks and decommission all the gas turbines, the better.