Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
United States Power

Solar Energy Was America's Largest Source of New Energy for 21 Straight Months (electrek.co) 103

"Solar and wind accounted for almost 91% of new U.S. electrical generating capacity added in the first five months of 2025..." reports Electrek, citing new data from America's Federal Energy Regulatory Commission.

"Solar has now been the largest source of new generating capacity added each month for 21 consecutive months, starting September 2023." The 11,518 MW of solar added during the first five months of 2025 was 75.3% of the total new capacity placed into service... Between January and May, new wind provided 2,379 MW of capacity additions, accounting for 15.6% of all new capacity added during the first five months of 2025. For the first five months of 2025, solar and wind comprised 90.9% of new capacity while natural gas (1,381 MW) provided just 9.0%; the remaining 0.1% came from oil (14 MW). Solar + wind are 22.9% of U.S. utility-scale generating capacity.

The installed capacities of solar (11.1%) and wind (11.8%) are now each more than a tenth of the U.S. total. Taken together, they constitute 22.9% of the U.S.'s total available installed utility-scale generating capacity. At least 25-30% of U.S. solar capacity is in the form of small-scale (e.g., rooftop) systems that are not reflected in FERC's data. Including that additional solar capacity would bring the share provided by solar + wind to more than a quarter of the U.S. total. With the inclusion of hydropower (7.7%), biomass (1.1%), and geothermal (0.3%), renewables currently claim a 32.0% share of total US utility-scale generating capacity. If small-scale solar capacity is included, renewables are now about one-third of total US generating capacity....

Taken together, the net new "high probability" capacity additions by all renewable energy sources over the next three years — the bulk of the Trump Administration's remaining time in office — would total 113,097 MW. There is no new nuclear capacity in FERC's three-year forecast, while coal and oil are projected to contract by 24,913 MW and 1,907 MW, respectively... If FERC's current "high probability" additions materialize by May 1, 2028, solar will account for 16.7% of US installed utility-scale generating capacity. Wind would provide an additional 12.7% of the total. Thus, each would be greater than coal (12.2%) and substantially more than nuclear power or hydropower (each 7.2%). In fact, assuming current growth rates continue, the installed capacity of utility-scale solar is likely to surpass that of either coal or wind within two years...

At the end of 2024, the mix of all renewables accounted for 30.96% of total generating capacity. Solar alone was 10.19% while wind was 11.68%. By the end of May, renewables' share had risen to 31.98% with solar at 11.13% and wind at 11.80%.

FERC also says that 43 "units" of solar totaling 1,515 megawatts (MW) were placed into service in May, according to the article, "accounting for 58.7% of all new generating capacity added during the month."
This discussion has been archived. No new comments can be posted.

Solar Energy Was America's Largest Source of New Energy for 21 Straight Months

Comments Filter:
  • by backslashdot ( 95548 ) on Saturday August 23, 2025 @10:01PM (#65611484)

    We need to get energy from fusion. If only we had a giant reactor.

    • Okay you got a Dyson sphere to go with it? Didn't think so. We might want to build some smaller ones.

      • Does Dyson make a sphere now too?, I have one of their balls. Does it have a cord?
    • by AmiMoJo ( 196126 )

      Joking aside, this is how renewables will ultimately triumph over everything else. Capitalism - people can generate their own electricity instead of being forced to pay someone else for it. The returns are guaranteed and very good in comparison to other investments. The be centralized producers can try to make it less attractive by reducing payments for grid feed-in, but in doing so they just make going off-grid or setting up a micro grid more attractive.

      • Re: (Score:3, Insightful)

        by drinkypoo ( 153816 )

        Just as capitalism can be influenced to protect consumers from its worst excesses, it can also be influenced to make its excesses worse.

        Corporations absolutely can buy laws (in the US these days, by bribing just a single person who wears a lot of orange makeup) which prevent citizens from installing their own solar power systems.

      • by mspohr ( 589790 ) on Sunday August 24, 2025 @01:01PM (#65612362)

        Solar, wind and batteries are now almost always cheaper than any other energy source.
        The "free market" will take care of implementation.
        Of course, fossils are afraid of being replaced and is heavily leaning on our corrupt government to tilt the scales. There are short term obstacles but solar, wind and batteries taking over.

      • Came here to stay the same. While I doubt centralized solar will ever replace nuclear for industrial purposes, there is good reason to believe neighborhoods and suburban areas will have mesh networks of batteries and panels.
      • Renewables?
        Solar = always sunny, Wind = always windy, geothermal = not hot enough to make enough steam to be useful, fusion = a bit away from being usable (but has promises), fission = waste disposal/storage, hydro = works but requires more dams than possible on actively flowing rivers.
        Each one has issues... it'll have to be some combination of whatever tech you can name.
        Solar works where it's sunny, but isn't durable enough to put in tornado alley, wind works if it's in a windy place (and you can get a mai

      • Joking aside, this is how renewables will ultimately triumph over everything else. Capitalism - people can generate their own electricity instead of being forced to pay someone else for it. The returns are guaranteed and very good in comparison to other investments. The be centralized producers can try to make it less attractive by reducing payments for grid feed-in, but in doing so they just make going off-grid or setting up a micro grid more attractive.

        Those who believe these things should spend more time pricing required technology out and not ignoring or otherwise neglecting that long tail required to keep the lights on 24x7.

        Sure it is cheap and easy to put enough panels on the roof to collect more energy than you will ever use in a year yet the costs of such things are literally rounding errors compared to resources required to convert this into energy available on demand.

    • by shanen ( 462549 )

      I'd rather have a giant robot!

    • Impossible to build. I calculate that it would have to be 865 million miles in diameter to produce enough energy and at least 93 million miles away to keep from cooking us in our own juices. We simply do not have the technology to make such a thing.
    • More nuclear power, less "non reliable" solar/wind power. I have no problem with solar/wind, but nuclear is much better and, unlike wind/solar, when you need to generate MORE power you can crank up the generator to create more power.
  • by sdinfoserv ( 1793266 ) on Saturday August 23, 2025 @10:15PM (#65611494)
    Lord Trumpkin just slammed the door on further renewable development. The Trump administration will approve no new solar or wind farm development: https://san.com/cc/trump-says-... [san.com]
    Going even farther, he blames renewables for rising electrical prices: https://apnews.com/article/tru... [apnews.com]
    • by arcade ( 16638 ) on Sunday August 24, 2025 @03:30AM (#65611756) Homepage

      Not american; don't know the exacting details - but my understanding is that no new projects will be approved on "productive farmland".

      Furthermore; given that solar is the cheapest alternative there is per kwh - economic conditions alone will ensure that lots and lots of solar capacity will be added by enterprising individuals, and companies.

      The trick is that now that battery prices are plummeting in addition, battery capacity is needed for when the sun doesn't shine, and flywheels are needed for inertia.

      Even with that, it's cheaper than any other power plant solutions.

      • by Smidge204 ( 605297 ) on Sunday August 24, 2025 @08:13AM (#65611968) Journal

        > but my understanding is that no new projects will be approved on "productive farmland".

        And that's an accurate but shallow read on it.

        The way it's framed makes it sound like we're paving over large open fields once used for crops and installing solar panels and wind turbines. While wind turbines often share land with crops (they take up a negligible amount of land in comparison), we're definitely not doing that with solar.

        The practical reality is any land associated with a farm is considered "productive farmland." So basically if you own a farm you are not getting any help installing renewable energy anywhere on your property.
        =Smidge=

      • by butlerm ( 3112 )

        Solar is a great way to shave peak demand in the late afternoon and evening when combined with batteries, but it cannot provide baseload power during the night or when the sun is not shining. You need natural gas, nuclear, hydroelectric, or coal(!) for that. But is a great thing as long as Congress quits subsidizing it. It isn't economically efficient to do so (excess deployment due to subsidies make retail electric rates go up not down) and we have a $2T a year budget deficit and we cannot afford it. S

        • by skam240 ( 789197 )

          ...and we have a $2T a year budget deficit and we cannot afford it.

          Right, the self imposed excessive debt that we got so billionaires could get a nice tax break.

          • by narcc ( 412956 )

            This. The solution is so simple that even a right-wing nut can understand it. That's why they're panicked.

    • by fahrbot-bot ( 874524 ) on Sunday August 24, 2025 @04:16AM (#65611796)

      Coal -- I mean, "beautiful, clean coal" -- fired power plants, on the other hand...

      A coal-fired plant in Michigan was to close. But Trump forced it to keep running at $1m a day [theguardian.com] "in operating costs, ... that midwest residents will have to meet through their bills." The Michigan grid operator MISO stated that it had “adequate resources to meet peak demand this summer” without the coal plant in operation.

      In Michigan, the cost of keeping JH Campbell open is set to be steep. Consumers Energy initially estimated its closure would save ratepayers $600m by 2040 as it shifts to cheaper, cleaner energy sources such as solar and wind. Reversing this decision costs $1m a day in operating costs, an imposition that midwest residents will have to meet through their bills.

      Should the Trump administration go further and force all of the US fossil fuel plants set to retire by 2028 to continue operating, it will cost American ratepayers as much as $6bn a year in extra bills, a new report by a coalition of green groups has found [earthjustice.org].

      • Yeah yeah, adequate supply... Statistician that did that job probably is DEI. (/s)
      • Ya kinda gotta ask yourself: Why the fuck is a Federal person fucking around with a State level item? Is it because the Federal person thinks everything within the country is within 'his' jurisdiction?

        Oh wait, no. We all agreed and voted for a King, not a president.

        Fuck this shit.

        (I remember Sue) ;(

    • Does this include Texas? Since Texas has its own grid, and manages the grid itself, without Federal oversight, I would assume that Trump has no authority to stop solar and wind projects in Texas.

    • by gweihir ( 88907 )

      The approach used is called the "Big Lie" (https://en.wikipedia.org/wiki/Big_lie). Works well on uneducated idiots with delusions. Obviously, the orange moron did not invent it or even optimize it, that was done by much smarter people (albeit with just about the same lack of morals, honor or integrity).

  • by BrightCandle ( 636365 ) on Saturday August 23, 2025 @10:21PM (#65611506)
    Per MWh Solar and Wind are cheaper than anything else so they are leading across the globe just on the economics. The decline in Solar pricing has been astounding over the past 15 years its really a technology that has matured and got very cheap compared to what it compares to. It also scales really well you can deploy a few panels on a balcony to offset some electrical costs all the way up to many MW farms deployed in open areas. It pays for itself in 5-10 years and will produce 80% of its rated power at least 25 yeas after install. There is a reason its most of the power being deployed.
    • by haruchai ( 17472 )

      Starting from about 2012, USA should have deployed solar everywhere below roughly the 38th parallel as quickly as possible & worked to have better interconnects between the various grids especially to be able to shunt power across the southern latitudes from FL to CA and back, including & especially through TX

    • Federal intransigence will have an impact, but I'd like to see a more detailed analysis of how much, because most solar development does not require federal approval. Not unless it's on federal land, or using federal funding, or some cases of environmental protection such as wetlands. So, it's unclear to me what the effect will be.
      • Expect it to be banned if enough states don't knuckle under and keep installing solar.

        "States rights", the rallying cry only exist so states can oppress women and of course to proselytize the word of Jeebus in schools, courts and other parts of the public sphere. When it comes to doing something regarded as against the interests of the GOP, there are no states rights.

    • by sg_oneill ( 159032 ) on Saturday August 23, 2025 @11:54PM (#65611606)

      I suspect a lot of it is patents expiring. The university I went to had a giant solar power research lab thingo at the back of it, and I'd go down there occasionally on campus busibness. One of the guys there claimed part of the problem was BP and certain other oil companies had a number of the key solar patents locked up and where charging through the nose to use them, This was 25 years ago, and a lot of those patents have expired in the time since. Be very wary when oil companies get involved with renewables. Chances are , its to lock up the patents and sabotage the market.

    • Re: (Score:2, Troll)

      by brainchill ( 611679 )

      Solar really isn't "cheap" by any stretch of the imagination. The requirement of huge battery farms that need to be maintained just to have power generated by solar to remain remotely useful during peak times almost makes it not just more expensive but to the overall power use of the grid almost not useful at all.

      • by shilly ( 142940 ) on Sunday August 24, 2025 @02:50AM (#65611734)

        1. Countries get lots of value out of solar without storage. Every $ not spent on paying for the fuel for fossil fuel generators is a $ saved. Just the duck curve alone is massively economically positive
        2. Storage costs are falling rapidly, have been for decades, and will continue to fall in the future
        3. If solar really were as shit as you think it is, it wouldn’t be dominating new power deployments across the globe, both public and private

        • by Creepy ( 93888 )

          It depends on where you live. I had solar heat as a kid, and I lived in far north America (St Paul area, Minnesota). Solar heat was on 2 hours a day and had to be shoveled off continuously, including roof panels. I would rate it a 1/10 for convenience and due to the short days, 1/10 for heat. Probably cost my parents 5000x what it benefited them and that was because 2 kids constantly shoveled off the panels on the roof, then dived into a snow pile from clearing the driveway (ok, that was fun). So yeah, I'm

        • The only reason you see ANY push back on solar is because the sun can not be metered for profit.

          Other than that, it makes sense to install solar any time it fits.

      • by arcade ( 16638 ) on Sunday August 24, 2025 @03:36AM (#65611764) Homepage

        This used to be true, but is no longer true - and will be even less true year over year.

        Battery prices are continuing to decline. China has been manufacturing solar planels like crazy, and are now manufacturing batteries like crazy.

        I'd highly recommend that you read the June 22nd 2024 edition of The Economist (https://www.economist.com/weeklyedition/2024-06-22 ). Their main feature is not their front page, but rather their "Dawn of the Solar Age" feature.

        I was extremely surprised. Up until June last year I was "yeah, yeah, Solar is still for specially interested people". Now I'm in the "OK. Solar will happen no matter what, given the economics" camp.

      • Solar really isn't "cheap" by any stretch of the imagination. The requirement of huge battery farms that need to be maintained just to have power generated by solar to remain remotely useful during peak times almost makes it not just more expensive but to the overall power use of the grid almost not useful at all.

        Secondary storage exists for a lot of power plants to assist during periods of high demand. For example, Virginia has the Bath County Pumped Storage Station [wikipedia.org], with a net generating capacity is 3,003-megawatts, and was the largest pumped-storage power station in the world until 2021. This allows other power generating plants to operate at close to peak efficiency even during periods of low demand -- especially nuclear plants which are difficult to ramp up/down and (basically) operate most efficiently runni

      • 2010 called, they want their papers back.

        Its 2025. Solar and wind have been the cheapest choice for a few years now and costs will continue to decrease relative to other options.

        Unless ofc you run unfiltered coal plants or nuclear plants after their economic lifetime. Those are the only cheaper alternatives to renewable energy until someone installs working SMRs (that look suspiciously like standard reactors, even the scale of them) that are actually both small and standard, or we get working fusion.

        Neither

      • The requirement of huge battery farms that need to be maintained just to have power generated by solar to remain remotely useful during peak times almost makes it not just more expensive

        Solar + battery is cheaper than coal, let alone nuclear

        • Solar + battery is cheaper than coal, let alone nuclear

          This is wishful thinking. It is economically feasible to run the grid entirely on nuclear or entirely on coal. The same cannot be said for solar + ESS which is completely infeasible given currently available technology.

    • It might be cheaper on average but price per kWh varies a lot - especially when most of your production comes from solar and wind. Unfortunately, in that case the price is low when those productions are high, and the price is high, when the variable sources are low. That is on truly free market terms, solar and wind have to meet a much lower price than the average to be profitable. It helps, that the two production types aren't in sync, of course.
    • I'm pro solar and do see this (incl battery storage) as the eventual, dominant source of electricity in the future. The cost, environmental benefits, and geo-political benefits are far better than the alternatives, especially in the United States. Can you imagine a world where Russian, Iranian, Venezuelan, Saudi oil is worthless? Such a better planet to inhabit. Heck we could save trillions in avoiding future oil wars alone. China gets it...too bad the US doesn't. The current administrations anti s

      • by djinn6 ( 1868030 )

        Solar will be dominant just because it's nearly impossible to prevent people from installing it. Just try putting up a coal plant in a blue state. Investors won't even touch you with a 10-foot pole.

    • If government puts its finger on the scale and presses really hard, then yes, boutique energy sources like wind and solar are the cheapest...but ONLY because government has artificially inflated the prices of the other, actually cheaper, sources.

      In the 1960s, electricity companies were constantly encouraging their customers to consume MORE electricity. New nuclear plants were going online and the industry was saying that electricity was becoming "too cheap to meter" - they were starting to talk about just

  • Interior lighting will be a thing of the past. That is, unless solar and wind power are scaled massively. Nuclear won't be enough alone. Even with all three, it's doubtful the energy debt caused by the depletion of fossil fuels will be overcome.

    • Yes, we need to get Trump and all his cronies out and soon or this will just be the beginning of our fall to a Mad Max dystopia. Between elimanating research across the board in pretty much all fields except maybe weapons, destoying our medical system, education system and so on we are doomed to be a movie of the week if this is allowed to continue.
      • we are doomed to be a movie of the week if this is allowed to continue.

        Movies can always get better. Reality TV stays uniformly awful.

    • Interior lighting does not consume that much. Pretty easy to do that without a grid if you are happy with a few Watts of led light. Beats a candle. Cooking food, heating, vacuum cleaner,... Those are the power hungry monsters.
    • by Z80a ( 971949 )

      Interior light was already solved by Shuji Nakamura and his blue LEDs.
      You can light an entire big house using the same power as one strong incandescent bulb now.
      You probably can optimize it more by solving the issue of each light having it's own AC/DC converter, but there's bigger fish to fry, like heating and cooling.

    • In a few generations (Score:1)
              by TheStatsMan ( 1763322 ) 08-23-25 20:32 (#65611570)
              Interior lighting will be a thing of the past.

      Where are the stats, man?

  • Wait until modular nuclear takes off. It is the only way we can feed the AI beast.
    • >> Wait until modular nuclear

      I'm waiting to see some successful pilot plants. 5 years or more?

    • Wait until modular nuclear takes off

      So forever then? The only company which got approval to build one so far decided not to because it wasn't going to be profitable. Even SMR proponents don't want to actually build one because then we'd all find out that it's just a scam.

  • I am glad the *president* is already on it! /s

  • This headline "Solar Energy Was America's Largest Source of New Energy for 21 Straight Months" is wildly misleading because even if it's true that it is the largest producer currently being built as new construction it is still producing such an infinitesimally small amount of actual energy comparatively speaking that it's barely even statistically significant.

    • by Teun ( 17872 ) on Sunday August 24, 2025 @06:39AM (#65611908)

      This headline "Solar Energy Was America's Largest Source of New Energy for 21 Straight Months" is wildly misleading because even if it's true that it is the largest producer currently being built as new construction it is still producing such an infinitesimally small amount of actual energy comparatively speaking that it's barely even statistically significant.

      So you did not even read the summary:

      The installed capacities of solar (11.1%) and wind (11.8%) are now each more than a tenth of the U.S. total. Taken together, they constitute 22.9% of the U.S.'s total available installed utility-scale generating capacity. At least 25-30% of U.S. solar capacity is in the form of small-scale (e.g., rooftop) systems that are not reflected in FERC's data.

      +11% barely significant, yeah right :)

  • Since solar is so cheap when can we expect to start paying less for power? Why do markets with high concentrations of solar have high energy costs?

    • Since solar is so cheap when can we expect to start paying less for power?

      The price you pay isn't based on the average cost of generation.

      It is based on the marginal cost of the most expensive source.

      Solar is cheap for me because I have my own panels.

      • The price you pay isn't based on the average cost of generation.
        It is based on the marginal cost of the most expensive source.

        Where I live electricity is dirt cheap as most of it comes from hydro.

        Solar is cheap for me because I have my own panel

        What matters is total cost of electricity including all relevant capital expenditures not "solar is cheap for me".

    • This. I posted a similar question. The states (regulators) need to do a better job about smoothing the costs over a longer stretch of time. Current ratepayers seem to be getting stuck with a bigger proportion of the upfront, capital, install costs. California, we're talking about California here. they have the highest install of solar + batteries, but the consumers in CA pay the highest KWh rates in the nation. It'd be so much better if solar-heavy CA also had reasonable rates to demonstrate that s

  • What's that ... no? Then I guess we still need to go nuclear.
  • While the metric "installed capacity" has merit, when looking at the big picture capacity factor should be taken into account. 75% x 20% CF = 15.6 vs 25% x 90% CF = 22.5, so non solar sources added are still capable of more energy generation.

The Macintosh is Xerox technology at its best.

Working...