US solar and wind growth defies expectations – a decade in numbers
The latest US EIA and FERC data reflect a decade of explosive solar and wind growth – here’s how it breaks down.
The SUN DAY Campaign reviewed EIA’s latest monthly “Electric Power Monthly” report (with electrical generation data through June 30, 2024) and compared it to EIA’s data for June 30, 2019 and for June 30, 2014. It also examined FERC’s latest monthly “Energy Infrastructure Update” report (with installed generating capacity data through June 30, 2024) and likewise compared it to FERC’s data for June 30, 2019 and for June 30, 2014.
The installed US generating capacity mix of all renewable energy sources (i.e., biomass, geothermal, hydropower, solar, and wind) now totals 389 gigawatts (GW). That’s over 50% greater than five years ago (258.58 GW) and more than double the renewable energy capacity that existed a decade ago (190.26 GW). Most of the growth is because of new solar and wind capacity.
Similarly, electrical generation by renewables has shown strong growth. Ten years ago, renewables provided 14.28% of the nation’s electrical generation. Five years later, it had grown to 20.11% and today stands at 26.01%. Again, most of the increase is due to wind and solar.
For the first half of 2024, renewables, including small-scale solar, provided 549,339 gigawatt-hours (GWh) of electrical generation. That’s almost 40% more than the amount renewables generated in the first half of 2019 (399,586 GWh) and nearly double the output reported for the first half of 2014 (287,136 GWh).
Over the past decade, wind has become a leader
Ten years ago, hydropower boasted about 62% more capacity than wind (99.64 GW vs. 61.45 GW) and generated 40% more electricity (140,659 GWh vs. 99,739 GWh).
Five years later, the two were nearly equal in both capacity (hydro: 100.73 GW vs. wind: 98.86 GW) and electrical generation (hydro: 153,790 GWh vs. wind: 154,338 GWh).
Now, however, wind has definitively overtaken hydropower with 152.64 GW of installed capacity compared to that of hydro (100.88 GW) as well as 247,435 GWh of actual electrical output during the first six months of 2024 compared to 126,139 GWh from hydro.
As of mid-2024, wind accounted for 11.72% of total US electrical generation. Five years prior, it was 7.77%, and a decade ago, its share (4.96%) was less than half of today’s figure.
Wind’s share of total installed generating capacity as of June 30, 2024, was 11.75% – a significant increase from its 8.25% share five years earlier and 5.26% a decade ago.
Solar is the fastest-growing source of new capacity and generation
In the past decade, solar has ballooned from a fraction of a percent of both capacity and generation to become the second-largest renewable in both categories.
At the end of June 2014, utility-scale solar provided a mere 9.25 GW (0.75%) of total installed US generating capacity. Generation by utility-scale solar (8,535 GWh) was only 0.42% of the US total and EIA wasn’t even reporting generation by distributed, small-scale (i.e., <1 MW) systems yet.
However, five years later, solar capacity (39.13 GW) accounted for 3.27% of total utility-scale capacity. Actual generation by utility-scale facilities in the first half of 2019 had risen more than fourfold to 36,042 GWh (1.81% of the total) with small-scale solar contributing an additional 17,520 GWh (0.88%).
By the middle of 2024, installed solar capacity had risen to 8.99% of total utility-scale capacity. Utility-scale systems generated 102,614 GWh (4.86%) and small-scale systems added another 42,449 GWh (2.01%).
This rate of solar and wind growth has defied expectations. Three years ago, FERC had projected that installed utility-scale solar capacity would reach 105.04 GW by mid-year 2024. Solar’s actual capacity today is 11.2% more than FERC’s earlier forecast. In addition, wind’s installed capacity is now 2.4% higher than FERC had anticipated.
Hydropower and geothermal ebbs and flows, biomass drops
Over the past decade, the installed capacity of hydropower has edged up very slowly from 99.64 GW in June 2014 to 100.73 GW five years later and 100.88 GW today. Because the installed capacity of all energy sources combined has grown by over 8% during the past 10 years, hydropower’s share of capacity has gradually declined from 8.57% in 2014 to 8.41% in 2019, to 7.77% in 2024.
Electrical generation by US hydropower facilities has ebbed and flowed from year to year. For example, it was 140,65 GWh in the first half of 2014 (7% of the total) and then 153,790 GWh in mid-2019 (7.74%) and is now 126,139 GWh (5.97%) for the first six months of 2024.
Electrical generation by biomass, as well as its share of installed generating capacity, has been on a slow decline for the past 10 years. FERC data indicate that utility-scale biomass capacity dropped from 16.05 GW (1.37% of the total) in mid-2014 to 16.02 GW (1.34%) in mid-2019 to 14.54 GW (1.12%) in mid-2024. Correspondingly, actual electrical generation fell from 30,095 GWh (1.50%) during the first half of 2014 to 29,520 GWh (1.49%) five years later and then to 23,062 GWh (1.09%) this year.
The smallest renewable energy source – geothermal – has shown a pattern similar to that of hydropower. Its installed capacity has risen slightly from 3.87 GW in 2014 to 4.14 GW today, while its share of the US total has consistently hovered around 0.32-0.33%. Actual generation has ebbed and flowed over the past decade providing 8,108 GWh (0.40%) in the first six months of 2014, then 8,376 GWh (0.42%) in the first half of 2019, and now 7,640 GWh (0.36%).
“Notwithstanding minimal changes in the contributions by hydropower, biomass, and geothermal, renewable energy sources have doubled their share of US generating capacity and electrical output over the past 10 years thanks to explosive growth by both wind and solar,” noted the SUN DAY Campaign’s executive director Ken Bossong. “If the trends of the preceding decade continue, renewable energy sources could account for 40% or more of capacity and actual generation by 2035.”
Read more: Q3 2024 update: How many US EV charging ports there are now
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Rush Township supervisors in Centre County, Pennsylvania, voted this week to greenlight a key permit for the Black Moshannon Solar project – a large solar development that would turn toxic former mineland into a major source of clean power.
If built, the Pennsylvania solar project would generate 265 megawatts of electricity – enough to power about 200,000 homes annually – on nearly 2,000 acres of toxic mineland. Developers deliberately chose the site, as the project is designed to reclaim land left behind by mining and fold environmental cleanup into the solar buildout.
According to project plans, the site would be restored with pollinators and pollinator-friendly ground cover planted beneath the solar panels. Developers have also committed to ongoing water quality and soil testing during construction and operations, along with soil improvements such as applying lime to help neutralize mining-related contamination and support vegetation growth.
Beyond the environmental cleanup, the project is expected to deliver a financial boost to the region. Black Moshannon Solar is projected to generate more than $5 million in tax revenue for the Phillipsburg-Osceola Area School District, along with more than $700,000 in direct tax payments to Centre County.
Environmental and energy advocates praised the township’s decision. David Masur, executive director of PennEnvironment, called the vote a model for other communities across the state. “We are hopeful that other local government officials across Pennsylvania will follow Rush Township’s lead and implement similar, much-needed solar projects all across the Keystone State.”
Jim Gregory, executive director of the Conservative Energy Network-Pennsylvania, also applauded the approval. “In 40 years, their forward-thinking decisions will be recognized as catalysts for environmental protection, public health improvements, and economic prosperity.”
Read more: Trump admin OKs $1B loan for Three Mile Island nuclear reboot
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![Genesis GV90 leaks as breathtaking ultra-luxe SUV with coach doors [Video]](https://i0.wp.com/electrek.co/wp-content/uploads/sites/3/2025/11/Genesis-GV90-leak-coach-doors.jpeg?resize=1200,628&quality=82&strip=all&ssl=1)
Genesis is gearing up to launch the stunning new flagship SUV. Ahead of its official debut, the GV90 leaked during an internal presentation, revealing our first look at the ultra-luxe electric SUV.
Genesis GV90 leak reveals coach doors and more
The GV90 is arriving as the largest, most luxurious Genesis SUV to date. Based on the Neolun Concept, the new flagship SUV will sit above the GV80 as Genesis expands into new segments.
As Genesis calls it, the “ultra-luxe, state-of-the-art SUV” stole the spotlight at the New York Auto Show last March.
It wasn’t the stunning, reductive design inspired by Korea’s moon-shaped porcelain jars or the premium Royal Indigo and Purple silk materials that caught most people’s attention at the event, but the B-pillarless coach doors.
The SUV was showcased with Rolls-Royce-like coach doors, offering a new level of luxury for Genesis. Although we’ve seen the GV90 spotted out in public testing a few times now with coach doors, we wondered if they would make it to the production model.
After the full-size SUV reportedly leaked during an internal presentation, it looks like we’ve found our answer. The Genesis GV90 leak reveals two versions: a standard model and a coach-door model.
The leaked images from our friends at ShortsCar offer our first look at the production version in full. Earlier this month, a GV90 prototype was spotted out in public with the coach doors wide open, providing a sneak peek of the interior.
From what was shown, the cabin will feature a similar layout to the concept, with high-end purple and indigo materials. The GV90 was also caught with an all-black interior, which is expected to be the standard version.
A new video from the folks over at HealerTV offers a closer look at the breathtaking interior ahead of its official debut.
The GV90 appears to retain the gear selector located near the top of the steering wheel from the Neolun concept.
Another report, from TheKoreanCarBlog, confirms the new gear selector after the first interior spy shots surfaced.
From what we’ve seen so far, the GV90 is shaping up to be a near replica of the ultra-luxe Neolun concept. Genesis has yet to announce a launch date for the GV90, but it is expected to make an official debut by the end of the year with sales starting in mid-2026.
Prices and final specs, like driving range, will be revealed closer to launch, but the Genesis GV90 is rumoured to be the first vehicle to ride on Hyundai’s new eM platform.
Hyundai said the new platform will deliver a 50% improvement in range compared to its current E-GMP-based EVs, such as the IONIQ 5. It’s also expected to offer Level 3 autonomous driving as well as other advanced driver assistance system (ADAS) features.
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Turning cheap daytime solar into electricity you can actually use at night just got a lot cheaper. A new analysis from energy think tank Ember shows that utility-scale battery storage costs have fallen to $65 per megawatt-hour (MWh) as of October 2025 in markets outside China and the US. At that level, pairing solar with batteries to deliver power when it’s needed is now economically viable.
Battery storage costs have fallen dramatically over the past two years, and the decline continues. Following a steep decline in 2024, Ember’s analysis indicates that prices continued to fall sharply again in 2025.
The findings are based on real-world data from recent battery and solar-plus-storage auctions in Italy, Saudi Arabia, and India, as well as interviews with active developers across global markets.
According to Ember, the cost of a whole, grid-connected utility-scale battery storage system for long-duration projects (four hours or more) is now about $125 per kilowatt-hour (kWh) as of October 2025. That figure applies to projects outside China and the US. Core battery equipment delivered from China costs around $75/kWh, while installation and grid connection typically add another $50/kWh.
Those lower upfront costs have pushed down the levelized cost of storage (LCOS) to just $65/MWh. Ember’s calculation reflects real-world assumptions around financing costs, system lifetime, efficiency, and battery degradation.
Cheaper hardware isn’t the only reason storage costs are falling. Longer battery lifetimes, higher efficiencies, and lower financing costs, helped by clearer revenue models such as auctions, have all contributed to the sharp drop in LCOS. Ember has published a live calculator alongside the report, allowing users to estimate LCOS using their own assumptions.
Why this matters comes down to how solar is actually used. Most solar power is generated during the day, so only a portion needs to be stored to make it dispatchable. Ember estimates that if half of daytime solar generation is shifted to nighttime, the $65/MWh storage cost adds about $33/MWh to the cost of solar electricity.
With the global average price of solar at $43/MWh in 2024, adding storage would bring the total cost to about $76/MWh, delivering power in a way that better matches real demand.
As Ember global electricity analyst Kostantsa Rangelova put it, after a 40% drop in battery equipment costs in 2024, the industry is now on track for another major fall in 2025. The economics of battery storage, she said, are “unrecognizable,” and the industry is still adjusting to this new reality.
“Solar is no longer just cheap daytime electricity; now it’s anytime dispatchable electricity. This is a game-changer for countries with fast-growing demand and strong solar resources,” Rangelova added.
Together, solar and battery storage are increasingly emerging as a scalable, secure, and affordable foundation for future power systems.
Read more: EIA: Solar + storage soar as fossil fuels stall through September 2025
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Your personalized heat pump quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here. – *ad
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