Analysis finds anytime electricity from solar available as battery costs plummet
117 points
3 hours ago
| 10 comments
| pv-magazine-usa.com
| HN
state_less
2 hours ago
[-]
The scaling up of battery manufacturing for EVs and now solar storage has lead to prices I would have never imagined I'd see in my lifetime. It's one of the success stories that, having lived through it, has been a real joy.

I know that folks might have been able to point to a graph years ago and said we'd be here eventually, but I had my doubts given the scale required and hacking through all the lobbying efforts we saw against solar/battery. Alas, we made it here!

reply
ak217
2 hours ago
[-]
Alas is right, China is poised to dominate battery, solar, and EV technology and to translate it to military technology as well. Meanwhile the Republicans are blowing up US alliances and sabotaging the battery/EV industrial development policy that was actually making progress in giving the US hope in catching up.
reply
calvinmorrison
37 minutes ago
[-]
good. maybe we can copy some shit for cheap and leap frog a few generations instead of leading the world!
reply
jfengel
11 minutes ago
[-]
Unlikely, since our labor costs are still considerably higher than elsewhere. For a very long time our economy has rested on developing high margin products and letting others do the low-marginal-overhead of making it. We assumed that they were not going to catch up to us as innovators.

That was a dangerous mistake, and we may be left with nothing.

reply
antonvs
33 minutes ago
[-]
> Alas is right, China is poised to dominate …

Are you saying “alas for citizens of the US who see things in competitive nationalist terms”?

Seems like a win for everyone else, no? What happened to “competition”, or is that something that’s only supposed to be beneficial within the US?

reply
JumpCrisscross
24 minutes ago
[-]
> Are you saying “alas for citizens of the US who see things in competitive nationalist terms”?

He’s saying it as a realist.

China is building the equivalent to America’s sanctions power in their battery dominance. In an electrified economy, shutting off battery and rare earths access isn’t as acutely calamitous as an oil embargo, but it’s similarly shocking as sanctions and tariffs.

reply
matheusmoreira
18 minutes ago
[-]
> shutting off battery and rare earths access

Trump just leveraged Magnitsky sanctions against brazilian authorities to obtain access to brazilian rare earths until 2030.

reply
api
1 hour ago
[-]
It’s the innovators dilemma. We have so much not just technical but cultural and political sunk cost in fossil fuels and traditional industrial era infrastructure. The Chinese are just developing now and don’t have so much of that sunk cost. So they can think like it’s the future. We are stuck in the past.

Eventually there may come a day when it’s China that is stuck in the past, looking back to the early 21st century like we look back to the middle twentieth, and someone else will be ascendant.

I really felt like Trump’s 2024 election was the moment it became the Chinese century. It was the moment we chose to exit our position of world leadership both culturally and technologically.

reply
ksec
33 minutes ago
[-]
May be it is not of an innovators dilemma?

Chinese CCP are willing to scarifies whatever traditional industrial era infrastructure in order for things to move forward and gain a global advantage. Especially when they are not the one paying for the scarifies.

reply
mcswell
6 minutes ago
[-]
"Make America Little Again" --Donald J. Trump
reply
jack_tripper
49 minutes ago
[-]
>I really felt like Trump’s 2024 election was the moment it became the Chinese century.

You must have been asleep at the wheel or living under a rock to have mised China's rise over the last decades. They didn't wait for Trump to get elected in 2024 and then flipped a switch from third world country to global superpower.

"Damn, this hot cup of coffee burned my tongue. Why would Trump do this?"

-HN comments

reply
api
46 minutes ago
[-]
No I saw it. I just felt like that was the moment it tipped.
reply
epistasis
33 minutes ago
[-]
This is exactly right, IMHO. We were in a course to counter China's momentum, we had handled COVID so much better, our industry had a huuuuuuge investment in it and was poised to take tiff.

And then it was all killed. And we are killing off our other competitive edges over China, the way we attract all the world's best science and tech talent to build here in the US rather than in their own countries. We have sat back scientific research 2-5 years by drastically cutting grants in nonsensical ways and stopping and decimating a class of grad students.

We were the most admired country in the world, and in a short amount of time we have destroyed decades of hard work building a good reputation.

We won't get that back in a year or two, it's going to be decades of work.

reply
jack_tripper
8 minutes ago
[-]
>our industry had a huuuuuuge investment in it

Which industry? How 'huuuuuge' was the investment?

>We were the most admired country in the world

According to who?

reply
jack_tripper
36 minutes ago
[-]
You saw what? More like you missed decades.
reply
sdoering
2 hours ago
[-]
Same here in Germany/Europe. Our conservatives actually destroyed the solar industry for the third time. Our conservative party has actually destroyed significantly more jobs in solar industries over the last 20 years than it keeps alive with subsidies of 70k€ - 100k€ per person working in that industry (direct and indirect subsidies make the 70 - 100k€ range).

But hey, our populist right tell us, that the subsidies for "green technology" are bad and that we need to get rid of them, because they are making energy so expensive in Germany (cleared of inflation energy costs are lower than 2013, 12 years ago).

But hey - people vote for those parties. Because they know their economics, not like the leftists, who don't.

Germany (or Europe in general) is fucked. In a few years, we will reap what we now sow. And not because of our social systems or immigration, but because our oh so great political leaders are not willing to invest in the future.

reply
bootsmann
2 hours ago
[-]
> cleared of inflation energy costs are lower than 2013, 12 years ago

This is not the argument you want to make. Energy prices are a significant component of the basket used to measure inflation. Like yeah, you expect energy prices to sink if you discount for the rise of energy prices. Germany is suffering from high energy prices its the key factor why the country has been stagnating economically for the past 6 years.

reply
toomuchtodo
1 hour ago
[-]
Their energy prices are an outcome of incompetence, having tied their energy prices to Russia and a gas supply from them. In hindsight, economic diplomacy is not the path to keeping an authoritarian in check; a strong military and energy independence is.

German energy prices will decline with battery storage and more renewables pushing out the last of their coal and fossil gas generation. Should’ve kept the old nuclear generators running too, as long as possible. Alas, a lesson they’ve learned.

reply
ViewTrick1002
1 hour ago
[-]
I think this take is too shallow, and based on hindsight.

Germany has had fossil gas ties to Russia since the Soviet time.

https://dw.com/en/russian-gas-in-germany-a-complicated-50-ye...

When the iron curtain fell pretty much all of Central Europe liberalized and democratized. The sole exceptions being Belarus and Russia.

Thinking they wouldn’t choose the same path is revisionist.

I remember growing up and gaming online thinking of Russians as nothing strange compared to anyone else. This changed with first Georgia and then very much Crimea.

reply
Gibbon1
43 minutes ago
[-]
> Thinking they wouldn’t choose the same path is revisionist.

Societies tend to not change how things work no matter who is in charge.

reply
toomuchtodo
1 hour ago
[-]
‘We were all wrong’: how Germany got hooked on Russian energy - https://www.theguardian.com/world/2022/jun/02/germany-depend... - June 2nd, 2022

> An arrangement that began as a peacetime opening to a former foe has turned into an instrument of aggression. Germany is now funding Russia’s war. In the first two months after the start of Russia’s assault on Ukraine, Germany is estimated to have paid nearly €8.3bn for Russian energy – money used by Moscow to prop up the rouble and buy the artillery shells firing at Ukrainian positions in Donetsk. In that time, EU countries are estimated to have paid a total of €39bn for Russian energy, more than double the sum they have given to help Ukraine defend itself. The irony is painful. “For thirty years, Germans lectured Ukrainians about fascism,” the historian Timothy Snyder wrote recently. “When fascism actually arrived, Germans funded it, and Ukrainians died fighting it.”

> When Putin invaded Ukraine in February, Germany faced a particular problem. Its rejection of nuclear power and its transition away from coal meant that Germany had very few alternatives to Russian gas. Berlin has been forced to accept that it was a cataclysmic error to have made itself so dependent on Russian energy – whatever the motives behind it. The foreign minister, Annalena Baerbock, says Germany failed to listen to the warnings from countries that had once suffered under Russia’s occupation, such as Poland and the Baltic states. For Norbert Röttgen, a former environment minister and member of Angela Merkel’s Christian Democrat Union (CDU), the German government bowed to industry forces pressing for cheap gas “all too easily”, while “completely ignoring the geopolitical risks”.

> In February this year, German Green economic affairs and climate action minister Robert Habeck said that gas storage facilities owned by Gazprom in Germany had been “systematically emptied” over the winter, to drive up prices and exert political pressure. It was a staggering admission of Russia’s power to disrupt energy supplies.

> “I was wrong,” the former German finance minister, Wolfgang Schäuble, says, simply. “We were all wrong.”

We win or we learn.

reply
jack_tripper
47 minutes ago
[-]
>> “I was wrong,” the former German finance minister, Wolfgang Schäuble, says, simply. “We were all wrong.”

So when are they retroactively giving back their salaries and pensions for having fucked up the livelihoods of their taxpayers?

Politicians have no incentive to ever make good decisions for the future of their country without any skin in the game from which their personal riches are derived.

>We win or we learn.

Jensen Huang said that failure is learning but sometimes failure is just failure and you should know when to cut your losses before the failure goes from learning to bankruptcy. And Germany did far more failure than actually learning.

reply
braincat31415
38 minutes ago
[-]
A self inflicted wound. Europe keeps entering into spot gas supply contracts and paying through the nose instead of signing longer-term contracts for lower prices. The Russians have always been reliable suppliers even after sanctions took place, and calls from some hotheads to use gas as leverage was never seriously followed through by the real decision makers. And Habeck is an idiot. Lately Germany has not been buying enough summer gas to keep the storage full, and of course the storage gets emptied during the winter - people need to keep warm. To imply that Gazprom is somehow stealing gas from these facilities to exert political pressure is ludicrous, expecially since Gazprom has not even owned these facilities since 2022.
reply
lysace
1 hour ago
[-]
See also: Gazprom, Gerhard Schröder (”Putin’s man in Germany” according to NYT) and the German nuclear power shutdown.

https://atomicinsights.com/gazprom-profiting-mightily-from-g...

https://www.nytimes.com/2022/04/23/world/europe/schroder-ger...

reply
tirant
1 hour ago
[-]
I don’t care if German prices for electricity are below inflation. They’re just still expensive. As an EV owner is difficult to find an electricity provider with costs below 0,25€/kWh, and most of them go beyond 0,30€. While I had prices in other European countries for around 0,05€/kWh at night for example.

Not only that, Conservatives, Socialists and the Green all managed to increase our electricity CO2 footprint by moving from nuclear to coal/lng.

reply
junto
1 hour ago
[-]
That’s mainly because German has fucked up the smart meter rollout. In their wisdom they separated the meter and the gateway when other countries just combined it. They also made it super secure (good), but then didn’t look at the fact that lots of people live in rented apartments and their meters in the cellars have really poor or no cellular connectivity. When Germany can finally do steerable dynamic loads properly at 95% of the market rather than under 10%, it will finally make a difference on steering pricing for such consumers as yourself.

Germany is investing in massive battery parks dotted around the grid. This will make a difference to supporting base load and offsetting coal, but it will take time.

If there’s anything about the Germans you can count on, is that they move slowly.

reply
jack_tripper
1 hour ago
[-]
>but then didn’t look at the fact that lots of people live in rented apartments

How would the political class know this obvious fact from the top of their ivory McMansions?

reply
lukan
53 minutes ago
[-]
"If there’s anything about the Germans you can count on, is that they move slowly."

What happened to Blitzkrieg?

reply
aktuel
1 hour ago
[-]
> cleared of inflation energy costs are lower than 2013, 12 years ago

Dude, soaring energy prices are driving inflation. That's like saying the prices are lower if you just keep ignoring everything that actually makes them more expensive. Duh.

reply
epistasis
56 minutes ago
[-]
You are certainly not alone in your beliefs, but it always amazes me which technologies get the benefit of doubt and which are severely penalized by unfounded doubt. Solar and especially batteries are completely penalized and doubted in a way that defies any honest assessment of reality. The EIA and IEA forecasts are as terrible as they are because the reflect this unrealistic doubt (random blog spam link, but this observation is so old that it's hard to find the higher quality initial graphs)

https://optimisticstorm.com/iea-forecasts-wrong-again/

Similarly, nuclear power gets way too much benefit of the doubt, which should simply vanish after a small amount of due diligence on construction costs over its history. It's very complex, expensive, high labor, and has none of the traits that let it get cheaper as it scales.

reply
solarengineer
48 minutes ago
[-]
https://www.reuters.com/sustainability/boards-policy-regulat...

10 new plants at USD 2.7 Billion each. They take six years to build. USD 2/Watt. They have standardised designs, have invested in grownig their manpower and know-how.

reply
epistasis
25 minutes ago
[-]
If you believe China's internal pricing numbers, sure....

But their actual investments in billions of dollars and in GW show that nuclear is not competing with solar, and is sticking around for hedging bets. They the are deploying far far far more solar and storage than nuclear. And if those nuclear costs were accurate, then nuclear would be far preferable. $2/W is incredible, as in perhaps not credible, but it would also be far cheaper than solar.

And even if China figured out how to build that cheaply, it doesn't mean that highly developed countries will be able to replicate that. Nuclear requires a huge amount of high skill, specialized labor, and doing that cheaply is only possible at certain levels of economic development. As economies develop to ever higher productivity, the cost of labor goes up, and it's likely that nuclear only ever makes sense at a very narrow band of economic development.

reply
chrisweekly
1 hour ago
[-]
Yes! It's awesome!

(Also, "alas" is a lament, expressing sadness, which is clearly not your intent.)

reply
alexose
2 hours ago
[-]
In addition to coming so far down in price, it's amazing to me how good the technology has gotten. Batteries that can easily discharge 5C in cold weather, cycle 10000 times, survive harsh conditions with zero maintenance. Panels that last for decades.

Which is why it makes me especially angry that the current US government is throwing away this gift in order to appease a bunch of aging leaders of petro-states. Literally poisoning the world for a 10-15 year giveaway to the richest of the rich.

I take some solace knowing that fossil fuels are now a dead end. And even though certain people are trying to keep the industry going, that end is sooner than ever.

reply
venturecruelty
2 hours ago
[-]
We are the petro-state, and they're our aging leaders.
reply
apexalpha
33 minutes ago
[-]
It’s somewhat humbling that this is essentially entirely done by one country.

For all their faults, I am in awe of the scale and success of their industrial policy.

reply
jmward01
1 hour ago
[-]
Batteries are probably going to kill long-range transmission lines and open up remote generation at a scale never thought possible. Desert solar, remote hydro, etc etc. As the price continues to fall and the density continues to rise the economics of transmission completely change and will decouple the location of power generation from the use of that power dramatically. This decoupling of location and use will drastically reshape energy production. Right now is likely the time to buy sunny land in the middle of nowhere but near train tracks.
reply
gpm
56 minutes ago
[-]
I think long range transmission remains a thing anywhere having a local grid remains a thing (which will be most places for other reasons).

Load-balancing the area having a cloudy few days and the area having a sunny days and the area having a windy few days and so on will remain extremely valuable. It lets you install a lot less batteries and isn't that much infrastructure given that the last mile problems are dealt with already.

reply
empiricus
1 hour ago
[-]
All nice and beautiful, but I don't understand how will this work in the winter in the temperate areas. You maintain parallel natural gas installations and ramp them up in the winter? Does this doubles the cost?
reply
epistasis
30 minutes ago
[-]
Not having to burn gas is cheaper than burning gas. There will be a decade or two of transition with rarely used gas turbines getting their yearly packet in a short amount of time. Eventually other tech will take over, or the gas infrastructure will pare down and be cost optimized for its new role or rare usage.

Europe, and Germany and the UK in particular, are really poorly suited to take advantage of this new cheap technology. If these countries don't figure out alternatives, the countries with better and cheaper energy resources will take over energy intensive industries.

This is not a problem for solar and storage to solve, it's a problem that countries with poor resources need to solve if they want to compete in global industry.

reply
rgmerk
11 minutes ago
[-]
From a global perspective, people living in temperate areas are actually the exception, not the rule (if a disproportionately economically successful exception).

The likely implication of this is that, long term, unless wind power starts going back down the cost curve, or you're fortunate enough to have lots of hydro power, Northern Europe, Canada, northern China and so on are going to have much more expensive energy than more equatorial places.

reply
Carlseymanh
1 hour ago
[-]
One of the few problem of nuclear is summer time water use. Combining solar with nuclear would be the best option in my opinion.
reply
datadrivenangel
1 hour ago
[-]
Nuclear plants, like most large thermal plants, are almost always located near large bodies of water and return that water downstream so it doesn't really matter?
reply
lukan
50 minutes ago
[-]
It matters if people don't want to see the rivers full of dead fish, so last year there were already shutdowns because of heatwaves.

https://www.euronews.com/2025/07/02/france-and-switzerland-s...

reply
moooo99
1 hour ago
[-]
It does when you care about the environmental impact of your cooling (and also consider the fact that droughts are an increasingly severe problem).
reply
pbmonster
1 hour ago
[-]
It matters when the level of that body of water drops by a lot in summer and the water temperature rises at the same time. Add environmental laws (cooking the fish is discouraged), and your nuke plant needs to go into safety shutdown pretty reliably every summer.
reply
ViewTrick1002
1 hour ago
[-]
Wind power. Mix with emergency reserves running on open cycle gas turbines, if deemed necessary, preferably with carbon neutral fuel. Optimize for lowest possible CAPEX.

That is contingent on that we’re not wasting money and opportunity cost that could have larger impact decarbonizing agriculture, construction, aviation, maritime shipping etc.

reply
jansan
1 hour ago
[-]
This probably depends a lot on how close you are to the equator. Here in Germany output of solar in winter is negligible, and if there is no wind, which can happen for several consecutive weeks, we need a backup. No utilities company will build a fossil power plant that will be used only a few weeks per year, so our government will have to step in to make sure this happens.

On top of this you have very high costs for an increasingly complex grid, which needs to be built and then maintained. Prices will never again be as low as in the fossil/nuclear era.

reply
morsch
1 hour ago
[-]
Here are some numbers: January 2025, the output of solar was ~1500 GWh, it peaked in June at 10500 GWh. So the lowest output was about 15% of the maximum, this year.

https://www.energy-charts.info/charts/energy/chart.htm?l=en&...

https://www.energy-charts.info/charts/energy/chart.htm?l=en&...

Looking at wind, the ratio between min and max per week is about 1:5 (~1200 vs ~6000 GWh). Just as there is always some solar power generation, there is never no wind, though looking at those charts there were 4 weeks in the late summer of 2023 when production was low consecutively, between 700 and 1000 GWh.

reply
gpm
1 hour ago
[-]
> it peaked in June at 10500 GWh

And 8280 GWh the previous June for those wondering roughly how much of this was due to more solar panels being deployed.

reply
codersfocus
2 hours ago
[-]
Does anyone know whether it makes sense to setup solar arrays closer to users or to concentrate them in sunny places and send them throughout the country?

e.g. an analysis of whether we should setup all the solar farms in Nevada for the whole country... set them up in the general south and transmit north... or will each state have their own farms?

reply
ericd
2 hours ago
[-]
Distributed. New transmission lines have big nimby issues, and many existing corridors are already getting overloaded. There are recurring attempts to reform the permitting process (in the last Congress it was called EPRA/energy permitting reform act), but… we’ll see.

Bureaucracy is the main thing holding back clean energy right now, rather than economics. You can see this in how Texas, which has lax grid regulation but isn’t biased towards clean energy has far surpassed CA, which subsidizes and got a big head start, in wind/solar generation in a few years.

reply
estimator7292
2 hours ago
[-]
We don't put all our coal and gas plants out in the desert, they're next to and within our cities.

Physically transporting electricity across distance is very expensive and a not-insignificant amount of power is simply lost on the way. These problems only get worse as the amount of power goes up, and the danger grows very quickly as power goes up. Plus the strategic and logistical benefits of distributed generation.

Simply put you can't centralize generation for the entire country. There's no practical way to actually transport that much power. Not with the technology we have today. If we had high-temperature superconductors then it would make more sense. But with standard metal wires, it's not happening.

reply
DamonHD
1 hour ago
[-]
On the GB (UK mainland) grid only ~2% of energy is lost in transmission; distribution is more typically ~5%. And we did put most of our big thermal power generation in the middle of the country, which is now causing difficulties as we need to re-jig transmission to accept offshore wind and interconnectors.

Solar PV on rooftops is great, injecting power directly at the load, eliminating transmission and distribution losses until there is excess to spill back to grid. It would be helpful if we stopped running an entirely artificial timetable in winter that demands heavy activity well outside daylight hours, so that demand better matched availability.

reply
lukan
37 minutes ago
[-]
If you would have a high voltage DC transmission line already, linking the dessert and the clouded cities far away, then it makes sense. I think it is worth building them, but it is a big investment. Many lines are proposed, some already build, but with the current US administration I don't think it is a priority.

So decentral is the current way to go.

That is the current state in the US

https://en.wikipedia.org/wiki/List_of_HVDC_projects#/map/3

reply
grensley
1 hour ago
[-]
The transmission network is underbuilt, so it's mostly best to generate closer to where it's consumed (especially for data centers).

We'll continue to see a mix though of Residential / Commercial & Industrial / Utility Scale

There are about 7,000 Utility scale sites in the US right now, so even the big boys there are fairly distributed.

reply
wrsh07
2 hours ago
[-]
Casey Handmer is a huge solar bull and his estimate is that solar becomes cheaper than any other form of electricity even when generated from northern states by 2030 (likely sooner)

Iirc solar is meaningfully more efficient (30-50%) in southern states, so it will likely make sense to place energy intensive workloads in locations with more direct sun.

However, the cost of transmitting additional power is interesting and complex. Building out the grid (which runs close to capacity by some metric^) is expensive: transmission lines, transformers or substations, and acquiring land is obvious stuff. Plus the overhead of administration which is significant.

So there's a lot of new behind-the-meter generation (ie electricity that never touches the grid)^^

With all that in mind, I expect energy intensive things will move south (if they have no other constraints. Eg cooling for data centers might be cheaper in northern climes. Some processing will make sense close to where materials are available) But a significant amount of new solar will still be used in northern states because it's going to be extremely cheap to build additional capacity. Especially capacity that is behind-the-meter.

^ but not others! Eg if you're willing to discuss tradeoffs you might find dozens of gw available most of the time https://www.hyperdimensional.co/p/out-of-thin-air

^^ patio11 has a good podcast about this https://www.complexsystemspodcast.com/episodes/the-ai-energy... Disclaimer: my employer apparently sponsored that episode

reply
DamonHD
15 minutes ago
[-]
IMHO "efficient" isn't really the right term in your second para. The PV generation per W incoming is actually a little lower at higher ambient temperatures, but is otherwise fairly constant.

I assume that you mean higher kWh/y/kWp, ie you get more generation out of a given solar panel in the south each year.

reply
hn_throwaway_99
2 hours ago
[-]
High voltage transmission lines are really quite efficient, and concentrating generation is usually the right choice.

That said, it doesn't make sense to have just a single place for the entire country, as there are multiple grids in the US (primarily East, West, and Texas), and with very long transmission you can get into phase issues.

reply
epistasis
37 minutes ago
[-]
Concentrating generation made sense when transmission was cheap in comparison.

But one effect of ever cheaper solar is that transmission costs start to dominate generation costs, because transmission is not getting cheaper.

Cheap solar and storage requires rethinking every aspect and all conventional wisdom about the grid. Storage in particular is a massive game changer on a scale that few in the industry understand.

reply
aaronblohowiak
2 hours ago
[-]
technically or politically?
reply
ramshanker
3 hours ago
[-]
Has any production battery become cheaper than LEAC ACID for computer UPS ? I have not seen new cheaper UPS getting launched.
reply
rssoconnor
3 minutes ago
[-]
[delayed]
reply
fyrn_
2 hours ago
[-]
Many "solar power stations" can be used as a UPS, with competitive switching speed. Just not sold under that label. You can even get one made entirely in the US, but it will cost you: https://enphase.com/store/portable-energy/iq-powerpack-1500-...

But yeah, the cheap chinese "power stations" run circles around most UPS capacity wise. UPS market is very complacent.

reply
jcheng
2 hours ago
[-]
Seems like an opportunity for someone
reply
nomel
1 hour ago
[-]
No, it's a bad fit. it would be pure marketing. Lipo slowly destroy themselves when charged. Lead acid slowly destroy themselves when not charged.
reply
cogman10
1 hour ago
[-]
There are different LIPO chemistries. LFP in particular has little problem with being fully charged. You'll see it get swapped in for lead acid chemistries even in places like car/motorcycle batteries.

If you want an Lithium power supply then the keyword to look for is "LFP".

reply
gpm
1 hour ago
[-]
And LFP is also cheaper per unit energy and less of a fire hazard. Hard to imagine why you would use a different lithium-chemistry in a UPS.
reply
fyrn_
1 hour ago
[-]
Many of these power stations (including the one I linked) are LFP chemistry
reply
lesuorac
1 hour ago
[-]
Can't we just not push the lipos to 100% and have the UPS maintain a ~60% charge instead and get a long life span?
reply
ulnarkressty
47 minutes ago
[-]
Eaton and APC at least have models with LFP chemistry, with comparable prices across power ratings. The LFP will be more expensive though due to the increased longevity, at least until lead-acid ones stops being produced.
reply
PaulKeeble
2 hours ago
[-]
Lead Acid as far as I know is about $500 per KWh of usable space due to their depth of discharge being limited to about 50% and then they last about 3 to 5 years if they kept within their 500 cycles at most. Whereas a LiPho battery will last 10-15 years, 6000 cycles and costs about £120 a KWh. So I have no idea how UPS based on lead acid is ending up cheaper, its not based on the battery tech cheapness.
reply
literalAardvark
1 hour ago
[-]
UPS aren't really cheaper.

Sure, up front you're paying very little for that box that can run your PC for an hour.

But over 2-4 years you'll have to replace that UPS after it fails catastrophically in really dumb ways, and that's if you're lucky and it doesn't also burn your house down, whereas a proper storage system will last for a long, long time with more capability.

In my business I've never had a deskside UPS live longer than that.

And yes, we don't buy the ultra expensive ones. That's true.

reply
Rebelgecko
2 hours ago
[-]
Some of the power stations from Ecoflow/Anker/Bluetti are competitive in terms of price and capacity while still having a fast enough switchover for UPS purposes.

They tend to have features that may not be necessary for a UPS (eg solar or DC input), while lacking some features that are more common on UPS (eg companion app to turn your computer off when UPS gets low, although you might be able to rig your own solution)

reply
Nextgrid
1 hour ago
[-]
Problem with Lithium ones is that they tend to be quite flammable. Lead acid is mostly inert I believe?
reply
andruby
1 hour ago
[-]
LFP is a lot safer than NMC. I think it's almost on par with Lead-Acid.
reply
onraglanroad
1 hour ago
[-]
Weirdly, none of the many phones, tablets and laptops I've owned have ever caught on fire.

I guess I've just been lucky.

reply
bingo-bongo
51 minutes ago
[-]
It’s not as much about the risk of failure, as both are safe when the correct safety measures are in place.

But what might happen when they fail - thermal runaway is no joke with lithium-ion, ask any firefighter.

reply
SigmundA
55 minutes ago
[-]
The acid in lead acid is sulfuric acid and if overcharged vents hydrogen gas, thats why they need a ventilated space typically. Sealed lead acid have safety vents that might pop if enough pressure builds.

They are most certainly not inert, they just have well established safety and charging protocols and are not used in very high quantities together because of their low energy density and cycle life.

LFP batteries which have iron phosphate cathodes are very stable compared to colbalt based batteries that tend to have catastrophic failures due to overcharge causing cathode failure. LFP have higher cycle life and are cheaper and typically whats used for storage and application where the loss in erergy density is not a big deal.

reply
rightbyte
2 hours ago
[-]
UPS is kinda different since they are hardly used. I haven't done the calculation but it would guess lead acid is still cheaper?
reply
neuroelectron
1 hour ago
[-]
For about $100 the black friday, i got a ridiculous overkill LFP battery for my router and fiber modem. Would last about a week with no power.
reply
buckle8017
1 hour ago
[-]
Ok now shift summer sun into winter.
reply
apexalpha
31 minutes ago
[-]
A very large part of the people on this planet have (almost) no winters.

We could start with those ~3 billion people.

Also wind has proven to be a very good supplement to pv.

reply
gpm
1 hour ago
[-]
Just build more solar. You generate excess electricity in summer and enough in winter. This isn't a problem.
reply
aswegs8
3 hours ago
[-]
Am I dumb or does that sentence "Analysis finds anytime electricity from solar available as battery costs plummet" make no sense grammatically?
reply
ttul
2 hours ago
[-]
If they were going for maximum confusion, why not write, “Solar battery costs plummet analysis findings back anytime electricity availability”?

Subject (((((Solar battery) costs) plummet) analysis) findings)

Verb [back]

Object (anytime (electricity availability))

Garden path sentence structure trap creation relies on initial word parse error encouragement. Brain pattern recognition system default subject-verb-object order preference exploitation causes early stop interpretation failure.

Solar battery costs plummet phrase acting as complex noun modifier group creates false sentence finish illusion. Real subject findings arrival delay forces mental backtrack restart necessity.

Noun adjunct modifier stack length excess impacts processing speed negatively. Back word function switch from direction noun to support verb finalizes reader confusion state.

We write to be understood. Short sentences and simple words make the truth easy to see.

reply
robwwilliams
2 hours ago
[-]
Brilliant <ttul>! I would have needed help from Claude to tangle it up so well and on topic. But that last lucid sentence is rubbish.
reply
FfejL
3 hours ago
[-]
The actual headline is:

Analysis finds "anytime electricity" from solar available as battery costs plummet.

Those missing quotes go a long way to making the headline make sense.

reply
malfist
3 hours ago
[-]
Its still really confusing. A better title would be "When solar power from batteries are available, costs plummet"

Or since power has no provenience, "When batteries are available, electricity prices fall"

reply
bee_rider
2 hours ago
[-]
This doesn’t really capture their meaning though. They are describing a change in how the solar generated electricity can be treated due to the changing battery prices.

Arguably your edit is more factual. But part of the job of the title in an editorial like this is to tell you what their perspective is.

reply
fweimer
2 hours ago
[-]
I assume the intended meaning is “reduced battery costs make around-the-clock solar-generated electricity possible”. I don't think it's possible to predict how technical changes in electricity production and storage impact prices.
reply
Angostura
2 hours ago
[-]
"Falling battery costs make electricity from solar viable day and night"
reply
k1t
3 hours ago
[-]
I think they meant "viable" instead of "available"
reply
hammock
3 hours ago
[-]
Just read the subhead. It explains everything.

Ember’s report outlines how falling battery capital expenditures and improved performance metrics have lowered the levelized cost of storage, making dispatchable solar a competitive, anytime electricity option globally.

reply
kgwgk
2 hours ago
[-]
I.e. making it a viable option.
reply
evrimoztamur
2 hours ago
[-]
Baseload, ideally.
reply
pqdbr
2 hours ago
[-]
Came in the comment section looking to see if it was just me. Had to read it 4 times
reply
jt2190
2 hours ago
[-]
The source report

“How cheap is battery storage?“ https://ember-energy.org/latest-insights/how-cheap-is-batter...

In short: Cheaper batteries plus already cheap solar means that solar is now a cheap source of “anytime electricity”.

reply
neom
2 hours ago
[-]
To me the context string is just a bit...lumpy or something, I don't think it's directly about the grammar. I would have written something more like: a battery costs plummet, analasis finds "anytime electricity" is now available from solar.
reply
Etheryte
2 hours ago
[-]
Falling battery prices make storing solar electricity for later use economically viable. This means we can use electricity from solar anytime around the clock. Even accounting for the cost of batteries, it's still competitive with other sources of electricity.
reply
fweimer
2 hours ago
[-]
I think “anytime electricity” is a noun phrase, and the rest is just the usual headline shortening. So something like this:

(Analysis finds ((anytime electricity) from solar) available) (as (battery costs) plummet)

In the unsuccessful parse, “anytime“ introduces a relative clause.

(Analysis finds [that] (anytime ((electricity from solar) [is] available))) ???

reply
JoeAltmaier
3 hours ago
[-]
$33 per MWh for solar. What is it for coal or natural gas? Maybe half that?
reply
fyrn_
3 hours ago
[-]
In the US as of June 2024: Gas peaker plants are: $110-228 And Gas combined cycle: $45-108

PV in the US is also more expensive than globally however: $38-171 for Utility scale with storage, when including subsidies, $60-210 when not.

Coal is so much worse in every cost metric than gas combined cycle it's not worth considering, even leaving the pollution aside.

https://www.energy.gov/sites/default/files/2024-12/34-%20Exh...

reply
mullingitover
2 hours ago
[-]
It's already cheaper to demolish an existing coal plant that's already paid for and replace it with solar + battery. Solar and battery brand new buildout, plus their maintenance overhead, dominates coal even when you only count coal's maintenance cost.

People have it in their heads that this is some bleeding heart, don't ruin the planet thing, but it's plain economics. Non-renewable energy is simply inferior, and will only become more so.

reply
luqtas
1 hour ago
[-]
> Non-renewable energy is simply inferior, and will only become more so.

you simply can't say this. despite the lobby against it, solar and wind energy have lifespans of around 20 years and afterwards, it's a freaking mess to deal with recycling and often times, garbage we don't know what to do. not even counting the amount of NASTY chemicals going into the production of solar panels. these are sometimes permanent and will have a great long term impact on ecology if we just start destroying plants to substitute with "green" alternatives mindlessly

one can also make a point that despite wind generators metals and batteries being almost to 100% recyclable, it's heck expensive to do and we don't have infrastructure. a comparison cosidering everything involved may show that hydroelectrics, nuclear, geo-thermal and heck even gas may have a similar or better impact depending on location

reply
ceejayoz
1 hour ago
[-]
> it's a freaking mess to deal with recycling and often times, garbage we don't know what to do

I love that this is followed by “so go nuclear!”

reply
luqtas
45 minutes ago
[-]
i recommend you starting with something easy to digest like this: https://www.amazon.com/Energy-Society-David-Pimentel-Ph-D/dp...

then you can move on and judge what't the panorama of closed/paywalled science found out there (Nature) that evaluates impacts of solar panel not even considering numbers of last batches of thrash from ~ 2010 (which still have 10-15 years till they start filling the world with chemicals like lead)... then may dive into electricity security and distribution and recycling technology to bring up a single ignorant phrase comment downsizing nuclear generation, despite it being safer and ecological on the long-term compared to photovoltaics in LOTS of places, for example

reply
RealityVoid
52 minutes ago
[-]
As opposed to coal that pump out NASTY chemicals right now?
reply
luqtas
41 minutes ago
[-]
i'm not defending coal. i'm just saying that solution to energy is much more broad than the OP seems to pass on "being cheaper to destroy a coal plant and substitute with batteries and solar". i wouldn't be surprised trey sightread titles and didn't realized that it may be economical to re-use an OLD coal plant to produce solar energy but well... my last comment on this thread has it all, great book
reply
toss1
55 minutes ago
[-]
Sure, and none of that amounts to even close to the damage from stripping vast areas of the earth to dig up coal, grinding and transporting it to power plants, then setting it on fire, and releasing tons of CO2, and then disposing of tons of unburnt waste full of NASTY chemicals.

And having to do all that continuously, every day, for the life of the plant.

In every single solution you can point out problems. Complaining that "X isn't perfect" is the easiest and laziest thing in the world to do. Assessing the ACTUAL costs and damages IN PROPORTION is more difficult, but actually yields good results.

reply
Panino
3 hours ago
[-]
Why would you think that? Solar and wind are both far cheaper than fossil fuels even ignoring the problems caused by coal and methane.

https://en.wikipedia.org/wiki/Cost_of_electricity_by_source

reply
mikeyouse
2 hours ago
[-]
Fuel cost for gas/coal can be rounded to $2/MWH - so then you need to amortize the cost of the plant over all the energy produced and you get to roughly 2x fuel cost for nat gas plants and 3x - 5x for coal ones. See page 10 here for sensitivity to fuel costs though;

https://www.lazard.com/news-announcements/lazard-releases-20...

reply
mlwiese
1 hour ago
[-]
No, Lazard estimates the fuel cost is $22-$23/MWh for Gas Combined Cycle, and $13-$18/MWh for Coal. See pages 39-40 of https://www.lazard.com/media/0sopmth5/lazard-releases-2025-l...
reply
toomuchtodo
2 hours ago
[-]
Solar and storage is the cheapest form of power now. Prices for both will continue to decline.

Battery storage hits $65/MWh – a tipping point for solar - https://news.ycombinator.com/item?id=46251705 - December 2025

reply
xbmcuser
2 hours ago
[-]
$100+ meh for natural gas. Solar and battery is so cheap that arab countries are now building large solar and battery systems to save money instead of burning oil and gas. Where as in the US the other big oil and gas producer wholesale electricity prices for Natural Gas is around $100-150 mwh which is cheaper than coal and the major reason coal got pushed out. Then we have China and India where coal is around $40-50 mwh.

So solar and batteries are now cheaper than all other forms of energy/electricity the only problem is finance for poor countries as you need to spend for all the 15-20 years of electricity in one go where as for coal and gas you will spend the same amount over 10-15 years. For rich countries the problem is mostly protectionism as cheap energy would destroy a lot of wealth of people in power.

reply