Solar to dominate US capacity additions, 73GW expected through 2025

Facebook
Twitter
LinkedIn
Reddit
Email
A solar PV project in the US state of Virginia. Image: Savion.

Nearly two-thirds of US generating capacity additions in the next three years will be fulfilled by solar, with the technology’s share of power generation in the country set to almost double, according to a report from the Federal Energy Regulatory Commission (FERC).

FERC’s latest Energy Infrastructure Update said that just over 72.8GW of solar is expected to be added from December 2022 until November 2025. By this prediction, total US solar capacity would increase from 78.8GW to 151.6GW, a near-double increase. The figures account for utility-scale “high probability” projects and do not include distributed capacity.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

In addition to the “high probability” project forecast, FERC published data showing “all additions” that could possibly be installed through November 2025. This scenario presents a potential 201GW three-year solar pipeline, encompassing the maximum possible additions based on all proposed or potential projects.

Wind generation is also forecast to grow significantly, adding 16.9GW of generation capacity over the period. Hydropower generation is forecast to increase by 819MW. According to the “all additions” data, wind has the potential to add 67.9GW.

Between now and November 2025, FERC predicts that net natural gas addition will be almost neutral, with 17.2GW of additions expected to be almost offset by 16.9GW of retirements. A similar story lies ahead for nuclear power, with 2.2GW of additions completely offset by 2.3GW capacity going offline. 17.3GW of coal capacity is expected to be retired, with no new additions.

This considered, 71.3GW of net generation capacity increase is expected. In effect, the solar additions – which are not expected to be curbed by any retirements – would account for the net capacity additions across the whole US grid, according to analysis of the data by research organisation the Sun Day Campaign.

“The combined generating capacity of solar and wind is now greater than either coal or nuclear power,” said the Sun Day Campaign’s executive director Ken Bossong. “Moreover, if the current trajectory persists or accelerates, generating capacity by the mix of all renewables should overtake that of natural gas before 2030 and possibly much sooner.”

The Sun Day Campaign said that at the close of 2022 solar and wind accounted for a combined 17.63% of the US’ generation capacity (of which solar constituted 6.27%). Come November 2025, the FERC data suggests that the gap between solar and wind capacity will have been closed, with solar accounting for 11.41% of capacity and wind 12.02%. All renewable energy sources combined will account for almost a third of national capacity by this point.

 The US has been experiencing serious grid backlog issues with vast capacities of renewable energy waiting in line for a connection, which may prove a challenge for future capacity additions. PV Tech Premium analysed the Department of Energy’s plan to resolve this issue in October. In June, FERC had proposed measures to accelerate interconnection and address backlog.

The solar PV module supply chain has been an ongoing issue in the US of late amid concerns over prospective retroactive tariffs and the introduction of the Uyghur Forced Labor Prevention Act.

21 October 2025
New York, USA
Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.
16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

October 8, 2025
The NSW Independent Planning Commission has granted planning approval for Potentia Energy's 500MW Tallawang solar-plus-storage project.
October 8, 2025
US solar module prices jumped in Q3 2025 as developers scrambled to meet the 2 September 2025 safe harbour deadline for Investment Tax Credit (ITC) qualification, according to supply chain platform Anza.
October 8, 2025
Despite policy headwinds on the federal level, there is optimism for the future of the US solar and storage sector.
October 8, 2025
Officials from Norway and Egypt have agreed provisional terms for the financing of the Dandara solar park in Egypt, which is being built and operated by Norwegian IPP Scatec.
October 8, 2025
Saatvik Green Energy has secured new solar PV module orders worth more than INR7 billion (US$84 million), to be delivered in this financial year.
October 8, 2025
Frontier Energy plans to expand its Waroona Renewable Energy Project into a renewable energy precinct by 2031, targeting up to 1GW solar.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK