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Pakistan says rooftop solar output to exceed grid demand in some hubs next year(reuters.com)
125 points by toomuchtodo 4 hours ago | 80 comments
abdullahkhalids 3 hours ago | parent | next [-]

I would encourage people to go look at satellite view of random "rich" neighbourhoods in Pakistan, and note how many solar panels there are on rooftops. Here is the first one I scrolled to in Lahore [1], and one in Karachi [2]

Pakistan's grid prices tripled or more since the start of the Russia-Ukraine war, because the extremely mismanaged and poorly designed electricity system+economy could not handle the energy price shock. This spiraled into rich people just buying rooftop solar systems, which exacerbated the grid problems even more.

[1] https://www.google.com/maps/@31.3611237,74.2493456,357m/data...

[2] https://www.google.com/maps/@24.8014179,67.0460688,415m/data...

tibbydudeza an hour ago | parent | next [-]

Price of Chinese PV panels and inverters and batteries have dropped so much and there has been financing schemes available where you get the installation for free and pay per usage cheaper than what the utility company charges and it is more realiable.

riku_iki 3 hours ago | parent | prev [-]

> rich people just buying rooftop solar systems, which exacerbated the grid problems even more.

how it exacerbated problems exactly?..

saidinesh5 3 hours ago | parent | next [-]

I'm guessing: fewer people buying from the power companies/grid => the fixed costs of these companies are pushed onto the poorer customers, who already couldn't afford much.

abdullahkhalids 2 hours ago | parent | next [-]

This is correct.

But there is a bit more. Almost all power plants in Pakistan are built with state-backed dollar-denominated loans (reason govt incompetence+corruption). This means if grid demand goes down, power plants don't go out of business like they would in a market based system. Instead, they keep collecting dollar-denominated interest paid by the state, even if they produce zero power.

The state mitigates this by increasing electricity prices (in rupees). I have forgotten how this helps.

elzbardico an hour ago | parent | next [-]

The reason power plants in Pakistan probably require this kind of financing is because Pakistan doesn't have the industrial capability to make the equipment that you need to build a power plant, so, dollars are a requirement.

Power companies in Pakistan also don't have easy access to international money markets, and thus, it makes sense for the government to back those strong currency loans as a subsidy on infrastructure.

This is not exclusive to Pakistan, this is the routine of infrastructure financing on developing countries. J.P. Morgan is not really eager to lend money for PakiPower Incorporated, but it is willing to lend to the government.

jstanley 2 hours ago | parent | prev | next [-]

So the power plants lend dollars to the state so that they can pay to build the power plant?

Or else I don't see how the power plants are collecting the interest?

abdullahkhalids an hour ago | parent [-]

Usually there are three parties in these agreements.

1. State of Pakistan

2. Someone with dollars (the investors)

3. Local businessman who are willing run the power plant.

The three parties come to an agreement on what the minimum returns should be on the investment. Say 10% annual. Then the investors give money to the businessman, who then import the power plant equipment and start operating it. The state-run electricity distribution companies buys from the power plant as needed and pays them the unit price set by the State of Pakistan. Part of this is converted into dollars at some pre-agreed rate and transferred to the investors.

In all this, if the total returns to the investor are above 10%, then all is good. However, if the grid demand has fallen, and the distribution company didn't buy a lot of units from the power plant, then the State of Pakistan has to step in and give the investors the difference to make up the 10% returns.

Yes, it is an insane system.

bofadeez a few seconds ago | parent [-]

Once the state starts running or steering firms, prices stop being signals and turn into political artifacts, profit-and-loss no longer disciplines decision-making, and "state capitalism" just becomes socialism with extra steps and worse error correction.

toomuchtodo 2 hours ago | parent | prev [-]

It is unfortunate that the government of Pakistan and their investors (China and the IMF) made poor investment decisions. They should feel free to go back to debt holders to renegotiate the debt, or default on it and hand the stranded assets back to creditors. The death spiral is of their own making, and will only accelerate as solar PV and battery cost declines continue. Electricity consumers will simply go off the grid. Such is the risk of unsophisticated investors not understanding the market in which they invest. Capital being at risk is an inherent component of investment.

My condolences and sympathy to the people of Pakistan caught in the mess. The global energy transition will be volatile.

Solar electricity every hour of every day is here and it changes everything - https://ember-energy.org/latest-insights/solar-electricity-e... - June 21st, 2025

Stranded fossil-fuel assets translate to major losses for investors in advanced economies - https://www.nature.com/articles/s41558-022-01356-y | https://doi.org/10.1038/s41558-022-01356-y - May 26th, 2022

Rethinking Energy -- 100% Solar, Wind and Batteries Is Just The Beginning - https://www.youtube.com/watch?v=PM2RxWtF4Ds - January 2021

Who owns the distressed fossil generation collateralized debt? China. Where is Pakistan importing cleantech from? China. There is some IMF debt in there as well, for accuracy.

How Chinese loans trapped Pakistan's economy - https://www.dw.com/en/how-chinese-loans-trapped-pakistans-ec... - August 2nd, 2024

Emeber Energy: China Cleantech Exports Data Explorer - https://ember-energy.org/data/china-cleantech-exports-data-e... (updated monthly)

gus_massa 3 hours ago | parent | prev | next [-]

Don't they charge a minimum just for keeping the wires connected?

abdullahkhalids 2 hours ago | parent | next [-]

I heard that they are trying to restructure the billing in this way for next fiscal year (July 2026- ), but its really difficult to find a non-regressive scheme. Electricity per-unit prices in Pakistan are set by the government, they vary depending on how much you consume [1], and they play a pretty significant role in government popularity.

[1] There is a price for the first 50 units you consume, then a higher price for the next 150 units, etc. Similar system to income taxes.

namibj 2 hours ago | parent [-]

Grids in Germany if you're not a "typical household/office" with therefore atypical grid usage bill for peak power and energy separately; the billing related peak power is measured by averaging power over 15 minute chunks, and taking the worst one of a year.

Alternatively it's also practical for such solar situations to bill for market rate price of the energy in each 15 minute chunk separately; this doesn't correctly attribute transformer and other transmission equipment expenses between solar houses and non-solar houses, but it's still handling the grid tie solar load on the grid's power plants during periods of very little sun.

andyferris 28 minutes ago | parent [-]

> averaging power over 15 minute chunks, and taking the worst one of a year.

What an interesting metric. Wouldn't even a very cheap and small battery (definitely small enough to keep inside an appartment) provide enough smoothing to, like, halve this peak number? You could rig it to not even output energy until you are beyond the current year's peak usage... How much money would you save this way?

I just feel this number is so prone to small mistakes (grandma plugs in the wrong things at the wrong times) and hacks (like the above) that the relationship between users' reward/punishment and the grid's health seems wildly disproportionate.

> market rate price of the energy in each 15 minute chunk separately

I am currently on a plan with 5 minute market rates, can buy and sell in (sell prices can go negative - as can buy, actually), all automated. At least I feel we am working with the grid, not against it, and we make a small net profit (before depreciation).

distances 5 minutes ago | parent [-]

> Wouldn't even a very cheap and small battery (definitely small enough to keep inside an appartment)

Like namibj mentioned, this does not apply for residential contracts.

bee_rider 3 hours ago | parent | prev | next [-]

I think most places the service is priced under the assumption that usage is enough to pay for the grid…

I’ve only ever rented though. Are connection fees something that homeworkers think about?

Possibly we will have to see changes to account for this sort of stuff at a more granular level, as the grid becomes more dynamic. But, that’s a future we should be actively looking to design for, as the energy supply mix is going to change whatever anybody thinks about that. Can’t beat energy falling from the sky, on price…

namibj 2 hours ago | parent [-]

In a random German apartment usage tends to be on the order of 30-ish EUR per person, and the connection fee is typically around 10 EUR per month.

phkahler 2 hours ago | parent | prev | next [-]

When they start charging that way, the rich will buy batteries and disconnect from the grid entirely.

manmal 2 hours ago | parent | prev [-]

Usually that’s included in per-kWh fee, so indeed usage dependent.

riku_iki 2 hours ago | parent | prev [-]

its easily fixable, utility company can charge fee for fixed cost those who connected to the grid, and if all rich decided to disconnect, then they disconnect neighborhood eliminating fixed cost.

kieranmaine 3 hours ago | parent | prev | next [-]

The following isn't a grid problem (more of a demand issue), but maybe they're referring to this:

> But 45 percent of Pakistanis live below the poverty line, according to the World Bank, putting solar panel systems well beyond their reach. The pool of customers for the national grid has gotten smaller and poorer, and the costs of financing old coal-powered plants have increasingly been passed on to those who can least afford it. [1]

1. https://www.msn.com/en-us/news/world/how-pakistan-s-solar-en...

ZeroConcerns 2 hours ago | parent | prev | next [-]

Previously, pretty much everyone (not just 'rich people', although, well, 'rich' is relative here, of course...) had diesel generators, which were not connected to the grid, since that would be seriously expensive, plus syncing would be pretty much impossible anyway.

With solar, you can feed back into the grid much more easily, to the point that this is the default. This sort-of doubles the load on the grid (not exactly, but you get the idea), since both 'consumption' and 'production' need to cross the same wires.

This is a problem even in, like, Germany, where the grid operator can send a "kill signal" to local solar inverters to shut down. In Pakistan, I can't even imagine...

elzbardico an hour ago | parent | prev [-]

Because storage is incredibly expensive and thus, for every GW of installed solar capacity you need and an exact another GW reserve capacity from other sources for the rare times when the sun doesn't shine (like, for example, during the night or during large spells of bad weather).

Besides being intermittent, solar and wind are not really dispatchable, that is, the grid operator doesn't have many levers to control the power output of a plan, and thus this imposes more stress on the other dispatchable power sources.

Some of those backup sources are not very flexible and take a long time to turn on and off, like coal based, and a lot of nuclear plants. Others, can be brought up online, ramped up and down faster, like gas turbines and hydro.

But other than gas turbine, most other firm sources economics are based on a predictable demand and a minimum duty cycle. A nuclear plant is very capital expensive, have an excellent capacity factor, but, it can't pay itself and its investor if it is not going to be run most of the time.

Base load is cheaper, because you dilute fixed costs, peak load is more expensive, because you sell less units to dilute your fixed costs.

Despite whatever the renewable lobby says, experience has shown over and over, that after a certain proportion of intermittent generation in a grid, large frequency excursions, deteriorated economics and frequent load shedding events are rather the norm than the exception.

AC grids are stupidly complex beasts. Most politicians, journalists and investors that drive our current discourse on the grid don't have even the most basic pre-requirements to understand it.

gpm an hour ago | parent | next [-]

This is all true except for the fact that storage is not incredibly expensive anymore, which invalidates every single conclusion you reach. Storage is now reasonably affordable, and the trend suggests it will soon be incredibly cheap.

spwa4 42 minutes ago | parent [-]

Which will make the problems of the rich disappear and the problems of the poor and the state ... worse. (because the costs of the state are paying off loans for expensive generation, costs which they recover from the poor)

triceratops 10 minutes ago | parent [-]

The state can default on the loans too. It sucks and it will make future financing more difficult. But it remains an option. No such thing as risk-free lending.

londons_explore an hour ago | parent | prev | next [-]

All these problems become solved if you have realtime market pricing.

Nobody would bother to install rooftop solar if daytime power was super cheap on every sunny day, yet expensive at night when their solar isn't working.

kryogen1c an hour ago | parent [-]

Wouldn't this model price out poor people? Doesn't that mean the most vulnerable people cant afford the services when they need them most, ie max hot/cold?

Changing the utility to a market sort of defeats the point of trying to optimize the utility.

londons_explore an hour ago | parent [-]

A typical user still pays the same on average in a market.

Just they might pay more in some hours and less in others.

Some market systems have gotten bad press over huge bills (eg. Texas), but that only happens when only a small chunk of users participate in the market, whilst others are on fixed pricing and therefore don't care about usage.

When everyone participates, supply and demand make sure the price never goes super high, simply because there are enough people who will turn off stuff to save money.

k1musab1 an hour ago | parent | prev [-]

This exact issue lead me to follow the grid orchestration research out of the Oak Ridge Laboratory. The building blocks already exist to enable this. An interconnected smart network of renewables can become a stabilizing force in the overall grid. Off-peak storage would still be required, but would no longer need to be "stabilizing" (turbine or other similar generator), and can be simple batteries.

SackSolStr 4 minutes ago | parent | prev | next [-]

The payback periods get me confused. A relative set up solar a year ago in one of the sunniest places in Europe, the Canaries, cost €7,000 for 6KwH. He just ran the math on it and found out that the payback period is 15 years. The only way to make it profitable is government subsidies. How can it be profitable to install solar in continental Europe where taxes and labor costs are much higher while having much less sun? Why are we using taxpayers' money to subsidize such negative NPV projects?

neebz 2 hours ago | parent | prev | next [-]

We switched to solar in 2021 expecting a 3.5-year payback. Electricity prices rose so fast that we recovered the investment in under two years.

Also the national grid is notorious for it's frequent blackouts (load-shedding) since the early ’90s. Solar allowed us to have uninterrupted supply in the mornings and longer backups during night.

testing22321 15 minutes ago | parent | next [-]

We got roof top solar 1.5 years ago in Canada. Payoff will be 6-5 years, but we got an interest free loan to cover it.

So we’ll just pay what we would have for power for those years ~$1000 a year, then we’ll have free power for 20 more, saving something like $20,000 for $0 investment.

toomuchtodo an hour ago | parent | prev [-]

Rough location (if you feel comfortable sharing ground truth)?

phreeza 42 minutes ago | parent | next [-]

https://news.ycombinator.com/item?id=43622584

tibbydudeza an hour ago | parent | prev [-]

South Africa - load shedding is a curse word here :).

toomuchtodo an hour ago | parent [-]

Great to hear about the fast payback period, wishing you reliable power :)

kragen an hour ago | parent [-]

tibbydudeza didn't post about a fast payback period. Maybe neebz is his wife?

ZeroConcerns 3 hours ago | parent | prev | next [-]

Excellent results, even if the source article is a bit government-optimistic-press-releasy. The less-good news is that, even with abundant solar, you still need a functional grid (even more so than in traditional top-down energy distribution schemes) in order for everyone to take advantage of it, but this is a problem that lots of rich nations are working through right now, so affordable off-the-shelf solutions are bound to appear in the near future.

And I wish Pakistan the best in taking advantage of those and/or their home-grown ingenuity!

pfdietz 3 hours ago | parent | prev | next [-]

What this shows is solar is increasingly threatening the electric utility business model. Even without net metering, demand destruction will cause the traditional model to stop working.

triceratops 7 minutes ago | parent | next [-]

In most places in the developed world utility-scale solar is much cheaper to build than rooftop solar. And there's value in having a stable grid to fall back on. I think the demand destruction story is overrated.

thfuran 3 hours ago | parent | prev | next [-]

Will it? I’m not sure how the utilities structure their prices wrt the actual cost, but they definitely separate the baseline connection cost from usage on bills (at least in the US), so they may not be killed by people using very little power as long as the connection fee actually covers things.

jaltekruse 2 hours ago | parent | next [-]

Unfortunately the connection fee does not cover all fixed cost. For a long time the model has been fairly "progressive" in this regard. Some of the fixed costs of the grid have been paid for by amortization over the per Kw cost, which had the effect of charging people who used more a larger chunk of these fixed costs. Now with the option to provide your own power if you have upfront capital for solar can build as big of a system as they want. As other comments in the thread have mentioned, net-metering is largely functioned as a subsidy to give money to people who are already doing fine financially. I want green energy, and I think that decentralization has definite benefits, but it's pretty hard to argue against maintaining the grid to allow re-balancing and covering supply shortfalls in specific areas. Here is a video discussing this problem - https://youtu.be/C4cNnVK412U?si=ZzZhoApFW3khqrdq&t=720

namibj 2 hours ago | parent [-]

What you could do is bill per energy in e.g. 15 minute chunks, and separately bill for transformer/line capacity by e.g. the peak usage in any such chunk over the contract period, like they do in Germany for atypical load profile industrial users since decades ago.

Net metering is overall just entirely stupid as a concept; measure inbound and outbound flow separately if you can't just measure the 15 minute chunks; bill grid fees on the energy price on inbound and only pay energy price on outbound. Or even bill grid fees on outbound up to one of many available large substations, and thus handle the issue of demand across large distances making buildout of solar in a convenient but far away place not being disincentivized vs. more-demand-local buildout.

kingstnap 3 hours ago | parent | prev [-]

The hardest possible demand to meet is random, reasonal, and spikey demand spread diffusely over a large area. Which is more or less homes.

Conversely the easiest possible demand to meet is localized constant and high demand. Basically AI datacenters or industrial users. These guys are basically paying for the grid and residential have it as a subsidy.

The supermajority of the price of electricity is fixed costs related to installing and maintaining capacity. The marginal problem of increasing generation or utilization is cheap. I believe it's like under 20% even for gas power where you have to buy gas. For grid solar it would be even crazier because marginally its basically free they really don't care how much you use it even goes negative but the fixed costs are everything.

So what causes a lot of social problems is when wealthy people get their own private solar because the whole current pricing structure revolves around wealthy people using a lot of electricity and paying down the connection costs for poor people. If they have solar the poor people are fronting the maintainence cost which destabilizes everything.

PunchyHamster an hour ago | parent | prev | next [-]

if the same solar also had enough battery capacity, sure. But they do not, they still need to buy at out of solar peak and that just causes problems for both sides.

I think grid should start moving into selling storage as a service. Just put a bunch of bulk storage at every transformer station and buy solar from consumers at solar peak, sell them back say 80% of it (or whatever margin is required to pay for it) off peak.

That way utility no longer have to haul megawatts all the way from the power plant all the time, any peak can be hauled from the batteries and let the other types of power plant more time to spool up, and the grid is more resilient to outages (assuming you were lucky and battery bank local to you still had some charge

toomuchtodo an hour ago | parent [-]

LFP chemistries are approaching ~$50/kWh, and CATL's sodium chemistry is supposed to be ~$40/kWh (per CATL); soon it will be more expensive to ship the battery storage than the storage itself.

"Watershed moment:" Big battery storage prices hit record low in China auction - https://news.ycombinator.com/item?id=44504630 - July 2025 (4 comments)

IEA: The battery industry has entered a new phase - https://www.iea.org/commentaries/the-battery-industry-has-en... - March 5th, 2025

Naxtra Battery Breakthrough & Dual-Power Architecture: CATL Pioneers the Multi-Power Era - https://www.catl.com/en/news/6401.html - April 21st, 2025

China Already Makes as Many Batteries as the Entire World Wants - https://about.bnef.com/insights/clean-transport/china-alread... - April 19th, 2024

kragen an hour ago | parent [-]

Currently "Sodium Battery Cell" is priced at US$50–70/kWh on the Shanghai Metals Market, which gives every appearance of being a real thing: https://www.metal.com/en/markets/43. They list LFP batteries currently at US$38–52/kWh: https://www.metal.com/en/markets/42

I think you may be dramatically overestimating how much container shipping costs.

ghc 2 hours ago | parent | prev | next [-]

Commercial and industrial use already makes up a large portion of demand. While the model will change to cater less to residential needs, overall demand for stable, high voltage generation is not going to go down.

jasonsb an hour ago | parent [-]

Commercial properties often have enough roof area to meet most of their daytime demand on-site. And industrial consumption in Western countries has been flat or declining for years, so "stable, high-voltage generation" may face less demand than assumed.

_trampeltier 3 hours ago | parent | prev | next [-]

I think in most countrys, you already pay one bill for the grid and one for the used electric power.

SoftTalker 3 hours ago | parent | prev | next [-]

Most people aren’t interested in being responsible for their own electrical generation. Especially with payback still being on the order of decades

testing22321 9 minutes ago | parent | next [-]

My payback is 6-7 years in Canada with $0 invested.

“Responsible for my own power generation” = I do literally nothing. Nada.

I get $1000 a year for free.

Please show me someone who does not want $1000 per year for absolutely nothing.

AngryData an hour ago | parent | prev | next [-]

A lot of people in my area are interested and it would be a net positive for them long term, but the area is poor so few can afford the initial costs despite knowing the money they would ultimately be saving.

seanmcdirmid 2 hours ago | parent | prev [-]

Most people don’t have the capital to be responsible for their own electricity generation, except the rich.

andor an hour ago | parent [-]

It's really not expensive anymore. There's a Black Friday deal on amazon.de for an entry-level Anker Solix system with 4x500W panels and a 2.6 kWh battery. 1200 EUR.

For those that don't have the cash, financing is available.

Have you read this, about SunKing and SunCulture in Africa, recently posted on HN: https://climatedrift.substack.com/p/why-solarpunk-is-already...

Their smallest solar products are small lanterns. Simply having a pollution-free source of light is already a quality of life improvement for some people. One step up is to add a USB port to charge phones.

seanmcdirmid an hour ago | parent [-]

Oh I’m sure, Pakistan has alot of trade with China also so it’s probably cheaper than in the west. But it would still be expensive for the poorer Pakistanis, and would require some investment, they simply have less ability to do that than a richer middle class Pakistani, so the poor pay the poor tax because they can’t invest capital to bring their costs down.

Low Chinese prices are making it more and more possible though. I hope the future will be really different.

UltraSane 3 hours ago | parent | prev | next [-]

What will people do at night?

davyAdewoyin 2 hours ago | parent | next [-]

I think I can answer that, though I'm not a Pakistani but as a Nigerian in a developing country, you might also have a petrol generator for night times. But for the majority of people just having your phone and power bank charged for the night is pretty ok, a plus if you can keep a handful of bulbs on also.

peppersghost93 3 hours ago | parent | prev | next [-]

overprovision for their needs during the day and utilize battery power at night.

UltraSane 2 hours ago | parent [-]

Solar panels are cheap but batteries are very expensive.

jillesvangurp 35 minutes ago | parent | next [-]

Batteries are dirt cheap already and getting cheaper all the time. Pakistan would be buying them at the Chinese prices without a lot of tariffs or nonsense that might be misleading you into believing otherwise.

Think a bandwidth of 50-80$ per kwh cost levels for the manufacturer with a margin on top in a market where there's over production and prices are still trending down and margins are probably under quite a bit of pressure. That's the widely publicized cost levels for Chinese manufacturers that dominate the world supply currently. Some of the sodium ion batteries that are coming to market now are already at the lower end of that price bandwidth and could go to 10-20$/kwh over the next 5-10 years; maybe faster.

At those prices, anyone can afford plenty of battery to survive the sun not shining for days/weeks. Which in places like Pakistan would be redundant. It's far south and you can count the number of days that you shouldn't be wearing sunglasses outside per year on the fingers of one hand. Even when it's cloudy, there's plenty of light filtering through in that part of the world..

Prices you might be seeing in the US tell you more about the local politics there than the economics of batteries. The US has it self to blame for bad economics like that. Places like Pakistan aren't going to slow down because the US can't figure out all this new stuff. For them this is economic growth unlocked by vastly more energy than they've ever had access to. All they'll ever need basically.

peppersghost93 2 hours ago | parent | prev [-]

They can be depending on your needs. Lithium iron phosphate batteries are pretty cheap for their capacity. If you build your own power station with them you'd be surprised how far your money goes.

UltraSane an hour ago | parent [-]

It is much more expensive that just buying electricity from the grid at night.

newsclues 3 hours ago | parent | prev [-]

Shift usage to daytime and rely on battery storage.

davyAdewoyin 2 hours ago | parent | next [-]

For my experience a lot of installations really doesn't have much battery capacity cause batteries are pretty expensive at least here in Nigeria, but a lot of people are really happy with the system as long as they get electricity even if it's only during the day.

UltraSane 2 hours ago | parent | prev [-]

Batteries are very expensive.

newsclues 2 minutes ago | parent [-]

Couple used car batteries or usb batteries are cheap.

Enough to keep the lights on, a fan or charging a phone. Not to run an AC or dishwasher but enough for the basics.

more_corn 3 hours ago | parent | prev [-]

There’s a business model where distributed solar production and storage is the norm and central grid based generation and delivery is the minority.

Such a model is extremely resistant and there’s less system infrastructure necessary. It’s quite feasible to redesign the system around a “distributed first” model.

idiotsecant 3 hours ago | parent [-]

Where do the massive upgrades to the distribution system required for this kind of setup come from?

We simultaneously hate utilities and want them to redesign and pay for a distribution system that was not intended for bidirectional load flow.

Our municipal distribution systems are barely adequate. Net metering produces essentially no revenue but imposes a huge load on that infra.

kieranmaine 2 hours ago | parent [-]

My understanding is there is less of a need for massive grid upgrades in this model due to the use of storage. Rather than having to be able to distribute peak loads from solar, requiring a larger connection, you can smooth out the supply and distribute an even amount throughout the day, using a smaller connection.

The section "1.1.3 Bringing large savings on grid expansions" [1] has a good explanation.

1. https://ember-energy.org/latest-insights/solar-electricity-e...

unglaublich an hour ago | parent | prev | next [-]

Great, you can easily switch them off or even better, store heat under ground for the winter.

toomuchtodo 4 hours ago | parent | prev | next [-]

https://archive.today/48P6c

woodpanel 2 hours ago | parent | prev | next [-]

Imagine being the CCP and you’ve managed to turn your industrial capacity into the world‘s single largest renewable energy source. PV‘s Saudi-Arabia.

bitxbitxbitcoin 3 hours ago | parent | prev [-]

How many years before this happens in parts of the United States?

jillesvangurp 25 minutes ago | parent | next [-]

Up to the locals in the US. Depends what their pain threshold is for falling behind and looking a bit behind the times. I think FOMO is going to be a big driver in a few years. This is not a left vs right topic. It's a money topic. And my impression of the US is that they love getting stuff on the cheap. Solar energy should be such a thing and it's getting painfully obvious that the US is paying a steep price where the rest of the world isn't. If I'm reading the situation correct, that is already annoying the hell out of a lot of traditionally republican leading states and not because they are tree-huggers.

The right question to ask is whether places like Mexico are going to politely wait for the US to get its act together or whether they'll just go ahead and start electrifying their country and industry and reducing their cost levels. The current isolationist policy works both ways. Very sunny place, Mexico. Great place for solar and batteries. And once you have those, Chines EVs produced locally might work very well. And they can export those further south.

hamdingers 3 hours ago | parent | prev | next [-]

In California, grid-tied rooftop solar was putting energy prices into the negative so often that they reconfigured the NEM to discourage export back to the grid and encourage battery storage.

Animats 2 hours ago | parent | next [-]

It seems to have worked, too.[1]

Batteries are the invisible change in the power business. They don't take up much land area. They're not visible to the public. Just being able to charge batteries during low power cost periods changes the whole economics of the industry.

Whether battery banks should be allowed to sell back to the grid is a tough question. Texas says no.[2] It's potentially "dispatchable" power, but only until the battery runs down.

[1] https://www.latimes.com/environment/story/2025-10-17/califor...

[2] https://www.ercot.com/mktrules/keypriorities/bes/ktc8

_whiteCaps_ an hour ago | parent | prev [-]

And it's messing with our utilities in BC because we were buying the daytime oversupply in California and selling the hydro generated power back at night. They've had to adjust plans as battery storage comes online.

newsclues 3 hours ago | parent | prev [-]

Already does in some cases but the utility companies have fought back and they can buy laws and regulations to slow down the process and protect profits.