How much solar capacity will be installed in the US in 2025?
Short Answer
Both the model and the market expect at least 30 GWdc of solar capacity to be installed in the US in 2025, with no compelling evidence of mispricing.
1. Market Behavior & Drivers
This prediction market has exhibited a modest overall upward trend, moving from an opening price of 22.0% to its current 30.0%. However, this trend is overshadowed by a period of extreme volatility in early February 2026, as the market reacted to the release of final 2025 data. During this period, the price swung dramatically between its all-time low of 6.0% and a high near 33.0%. A significant 10.0 percentage point spike on February 1 was driven by an EIA data release indicating 53 GW of new capacity was added, strongly favoring a "YES" resolution. This was immediately countered by a 21.0 percentage point crash on February 3, attributed to a conflicting GlobalData analysis that projected lower capacity additions. The market then staged a powerful 20.0 percentage point recovery on February 4, as the EIA's Short-Term Energy Outlook likely reaffirmed the higher installation figures, causing traders to discount the pessimistic forecast.
The price action reveals a market attempting to reconcile conflicting official and industry data sources. The total traded volume of 14,628 contracts suggests active participation and strong conviction during these price swings. Key technical levels have been established through this volatility: the 6.0% mark reached on February 3 has become a strong support floor, representing peak pessimism. Conversely, the market has struggled to break through the low-30s, with the 33.0% level acting as significant resistance. Current market sentiment, reflected by the 30.0% price, indicates that while a "YES" outcome of over 50 GW is still considered less likely than not, the probability has increased substantially due to recent positive government data, creating a state of high alert as traders await definitive resolution.
- Gross 2025 solar installations reached a record 65.8 GWdc.
- Significant capacity reductions offset these record gross installations.
- IRA incentives drove continued commercial and manufacturing solar expansion.
- Domestic module production capacity exceeded 60 GW by October 2025.
- Residential solar underperformed by 12.3% in late 2025.
Current Context
US solar capacity saw record growth in 2025, significantly meeting new demand. Solar energy satisfied nearly two-thirds of the growth in US electricity demand, with generation increasing by 83 TWh (27%) over 2024, now contributing 8.5% of all US electricity [1]. Battery capacity also surged by 133% in 2025, reaching 26 GW, enabling solar to address evening and nighttime demand [1]. For total capacity additions, the U.S. Energy Information Administration (EIA) projected 32.5 GW to 33.3 GW of new utility-scale PV capacity for the year [2], while other estimates indicated 63.1 GW across various development stages [3]. The first half of 2025 marked a record for any half-year, with nearly 18 GW of new solar installed, representing a 50%+ jump over H1 2024 [4]. By Q3 2025, over 30 GW of solar was installed, including 11.7 GW added in Q3 alone [5]. Utility-scale projects led installations in H1 2025 with approximately 14.5 GW, with 21 GW of utility-scale solar added to the grid by September 2025 [6]. Texas continued to lead in both planned and installed capacity, with over 21 GW planned for 2025 [7]. Solar accounted for over 50% of new utility-scale electricity-generating project additions, and combined with storage, made up 82% of new capacity in H1 2025 [6].
Policy changes and economic factors created significant challenges despite growth. The "One Big Beautiful Bill Act" (OBBBA), enacted in July 2025, revised clean energy incentives, leading to stricter federal guidance for the Investment Tax Credit (ITC) [8]. The residential solar ITC is set to expire after December 31, 2025 [9]. Commercial projects over 1.5 MW face new "begin construction" requirements after September 2, 2025, to qualify for the ITC, with physical construction needing to commence by July 4, 2026, for full eligibility, and projects generally needing to be operational by December 31, 2027, to qualify [10]. Corporate funding in the solar sector decreased by 39% in H1 2025 compared to H1 2024, largely due to higher interest rates and economic uncertainty [11]. The residential solar segment experienced slower growth in H1 2025 and a decline in Q1 and Q3 2025, influenced by high interest rates and California's NEM 3.0 policy, though installers are adapting by integrating more storage [6]. Supply chain challenges persisted, with shipments to the US from major module manufacturers plunging over 40% year-on-year in H1 2025 [12]. New tariffs, such as those on imports from India in August 2025, also created concerns about temporary domestic price increases [13]. Industry experts like SEIA and Wood Mackenzie slightly downgraded their 5-year forecast by 18-21% due to adverse policies, yet still anticipate strong annual installations of 20-30 GW before 2030 and a total of 41 GWdc utility-scale solar built in 2025 [6]. Shayne Willette of S&P Global also projected a slowdown in utility-scale solar due to the expiration of the US antidumping tariff moratorium [14]. Additional concerns include the urgent need for grid modernization, lengthy interconnection queues, and permitting risks for utility-scale projects [6].
2. Price Chart
Historical Price (Probability)
Outcome probability
Date
3. Significant Price Movements
Notable price changes detected in the chart, along with research into what caused each movement.
Outcome: At least 60 GWdc
📉 February 07, 2026: 8.0pp drop
Price decreased from 19.0% to 11.0%
What happened: The primary driver of the 8.0 percentage point drop in the "At least 60 GWdc" US solar capacity for 2025 prediction market on February 07, 2026, was the release of updated official forecasts and analyst projections indicating lower-than-expected installed capacity [1]. The U.S [2]. Energy Information Administration (EIA) released its Short-Term Energy Outlook (STEO) on February 6, 2026, which incorporated data up to February 5, 2026, and likely presented figures or analyses implying 2025 solar capacity additions would fall short of the 60 GWdc threshold [3]. This aligns with earlier analyst reports, such as GlobalData's January 1, 2026, forecast of 47.9 GW of solar added in the US in 2025, which directly contradicted the "at least 60 GWdc" outcome [4]. Additionally, Elon Musk's comments published on February 2, 2026, from an interview where he stated that "high tariff barriers in the US make the economics of solar deployment 'artificially high' compared to China's low-cost production," contributed to a dampened sentiment regarding the feasibility of rapid US solar expansion [1]. This social media activity appeared to LEAD the price move [2]. In conclusion, traditional news and official data from the EIA and other analyst firms were the primary drivers, with social media acting as a contributing accelerant by echoing concerns about deployment costs [3].
📈 February 06, 2026: 12.0pp spike
Price increased from 7.0% to 19.0%
What happened: The 12.0 percentage point spike in the prediction market on February 6, 2026, for "At least 60 GWdc" of US solar capacity installed in 2025 was primarily driven by market optimism stemming from recent reports on expanding domestic solar manufacturing capacity [5]. The Solar Energy Industries Association (SEIA) reported in its Q4 2025 market insight (December 8, 2025) that the U.S [6]. had reached over 60.1 GW of solar module manufacturing capacity by Q3 2025 [7]. Although this figure represents manufacturing capability rather than actual installed capacity for 2025 (which SEIA projected to be "nearly 50 GWdc" and other reports indicated lower installed figures for utility-scale solar), it likely fueled speculation and a perception that the "at least 60 GWdc" outcome for 2025 was more attainable [8]. This optimistic outlook was further supported by generally positive news in late January and early February 2026, highlighting strong project pipelines and continued growth in the U.S [5]. solar sector [6]. While no specific social media post from a key figure directly caused the spike, the widespread reporting of significant domestic solar capacity, potentially conflating manufacturing capacity with installed capacity, appeared to coincide with the price move [7]. Social media was likely a contributing accelerant, as the prominent "60 GW" figure, even if for manufacturing capacity, could have spread rapidly and been misinterpreted in online discussions [8]. However, the foundational driver appears to be the published data from industry reports [5].
Outcome: At least 50 GWdc
📈 February 04, 2026: 20.0pp spike
Price increased from 6.0% to 26.0%
What happened: The primary driver of the 20.0 percentage point spike in the prediction market on February 04, 2026, for "At least 50 GWdc" of US solar capacity in 2025 was likely the release and subsequent reporting of the U.S [9]. Energy Information Administration's (EIA) January 2026 Short-Term Energy Outlook (STEO) [10]. Released around January 20, 2026, the STEO projected significantly increased solar generation for 2025 compared to previous forecasts and outlined strong growth with nearly 70 GW of new solar capacity expected in 2026 and 2027 [11]. This bullish outlook, disseminated through traditional news outlets like Solar Power News on January 27, 2026, and Electrek on January 28, 2026, and referenced by ML Strategies on February 3, 2026, likely led market participants to upgrade their expectations for 2025 installations, increasing the perceived probability of reaching the 50 GWdc threshold [12]. Social media activity was not identified as the primary driver [9].
📉 February 03, 2026: 21.0pp drop
Price decreased from 27.0% to 6.0%
What happened: The 21.0 percentage point drop in the prediction market on February 03, 2026, for "At least 50 GWdc" of US solar capacity installed in 2025 was primarily driven by updated industry forecasts indicating a lower-than-expected capacity addition [2]. Specifically, a GlobalData analysis published on January 01, 2026, projected that the U.S [2]. would add 47.9 GW of solar in 2025, which is below the 50 GWdc threshold for the outcome [2]. This traditional news announcement, preceding the market movement, likely led to a reassessment of the probability of reaching the 50 GWdc target [2]. Social media activity was not identified as a primary driver or significant accelerant of this price movement [2].
📈 February 01, 2026: 10.0pp spike
Price increased from 19.0% to 29.0%
What happened: The primary driver of the 10.0 percentage point price spike in the "At least 50 GWdc" outcome for US solar capacity installed in 2025 on February 01, 2026, was the release of data from the U.S [6]. Energy Information Administration (EIA) indicating that 53 GW of new capacity was added to the grid in 2025 [13]. This information, published in news outlets on January 28, 2026, directly confirmed the market's "Yes" condition, leading the price movement by several days [12]. No specific social media activity from key figures or viral narratives were identified as the primary driver of this particular price movement [6]. Social media's role was likely (c) mostly noise or a secondary accelerant, as the definitive data from a credible source was the direct catalyst [13].
4. Market Data
Contract Snapshot
The provided page content only states the market question: "How much solar capacity will be installed in the US in 2025?" and a general "Odds & Predictions" heading. It does not contain information about the specific triggers for YES or NO resolutions, key dates/deadlines, or any special settlement conditions. This information is typically found within the detailed contract rules on the Kalshi market page itself, which were not provided in the snippet.
Market Discussion
Experts and industry reports generally agree that 2025 will be a strong year for solar capacity installation in the US, with forecasts ranging from approximately 32 GW to over 63 GW, making solar the leading source of new electricity-generating capacity [1]. However, debates exist around the ultimate installed capacity due to policy uncertainties like the "One Big Beautiful Bill Act" (OBBBA), which has led some analysts to downgrade long-term outlooks and raise concerns about permitting delays and the expiration of certain tax credits, potentially impacting the pace of growth despite strong market demand [2]. While record growth is observed in some segments and states, particularly Texas, policy shifts are seen as creating headwinds and volatility for the industry [3].
Sources (3)
5. What Factors Fueled Record US Utility-Scale Solar in 2025?
| Q4 2025 New Utility-Scale Solar Capacity | 12.8 GW (U.S. Energy Information Administration ) |
|---|---|
| Full Year 2025 New Utility-Scale Solar Capacity | 36.6 GW (U.S. Energy Information Administration ) |
| Q4 2025 Co-located Solar with Storage | 3.8 GW (U.S. Energy Information Administration ) |
Utility-scale solar additions reached a record 12.8 GW in Q4 2025. This robust performance in the fourth quarter, according to the U.S. Energy Information Administration (EIA), included 5.2 GW commissioned in December alone. This strong finish propelled the total new utility-scale solar photovoltaic (PV) capacity for the full calendar year 2025 to an unprecedented 36.6 GW, establishing a new annual benchmark for the nation.
Geographic concentration and battery co-location marked Q4 2025 solar additions. The substantial capacity growth was geographically concentrated, with key states like Texas (3.9 GW), California (1.8 GW), Florida (1.4 GW), and Arizona (1.1 GW) dominating the build-out. A significant industry trend observed was the deep integration of battery energy storage, as approximately 3.8 GW, or 30%, of the newly operational solar capacity was directly co-located with battery systems to enhance grid dispatchability and provide ancillary services.
Several key factors propelled 2025's record utility-scale solar growth. These critical drivers included the maturation and clarity around the Inflation Reduction Act (IRA) provisions, a stabilized solar supply chain, and the initial positive impacts stemming from FERC Order No. 2023 regarding interconnection reforms. These factors, alongside the continued economic competitiveness of utility-scale solar, sustained strong demand from corporate and utility buyers.
6. Did H1 2025 Solar Import Declines Affect H2 Project Completions?
| NextEra Energy 2025 Projects | 8.7 GW into service [1] |
|---|---|
| NextEra Energy Inventory Coverage | 1.5x required through 2030 [2] |
| NextEra Energy Total Backlog | Nearly 30 GW by year-end 2025 [3] |
Despite a reported 40% year-over-year decline in U.S. solar module shipments during H1 2025, major developers and EPCs successfully executed projects throughout the second half of the year. This resilience stemmed primarily from sophisticated, long-term procurement strategies and substantial existing module inventories, rather than reliance on volatile spot import volumes. For well-prepared, large-scale developers, on-hand supply and contracted deliveries proved sufficient to meet H2 2025 construction schedules, demonstrating a disconnect between import statistics and operational reality.
NextEra Energy maintained robust supply and significantly expanded projects. The company exemplified this trend, confirming sufficient solar panel supply to meet development expectations through 2029 and maintaining 1.5 times the required project inventory coverage to support goals through 2030 [2]. NextEra demonstrated robust execution, placing approximately 8.7 GW of new generation and storage projects into service during 2025, including over 2 GW of battery storage [1]. Furthermore, its project backlog grew significantly, adding 3 GW in Q3 and another 3.6 GW in Q4, bringing its total backlog to nearly 30 GW by year-end [3].
Mortenson also demonstrated sustained project execution without delays. Similarly, Mortenson Construction, ranked #8 on Solar Power World's 2025 Top Solar Contractors List after installing over 2 GW in 2024, continued work on large projects without reported supply-driven delays [4]. This included the 452 MW Clearway complex in Texas [5] and the 74.5 MW Fawn solar plant [6]. These achievements by leading EPCs confirm that widespread project completion delays beyond Q4 were largely prevented for well-prepared entities, primarily through strategic inventory and procurement rather than reliance on a specific volume of H2 2025 spot imports.
Sources (6)
- 1NextEra Energy 2025 Annual Shareholder Meeting Presentation.investor.nexteraenergy.com
- 2NextEra Energy Capital Holdings, Q4 2025 Financial Disclosure.sec.gov
- 3NextEra Energy Q3 2025 Earnings Report.investor.nexteraenergy.com
- 4Solar Power World, "2025 Top Solar Contractors List".solarpowerworldonline.com
- 5Clearway Energy Group Project News, "Kent County 452 MW Solar Complex Complete".clearwayenergygroup.com
- 6Mortenson Construction Renewable Energy Portfolio: Fawn Solar.mortenson.com
7. Why Did U.S. Residential Solar Underperform in Late 2025?
| California Q3 2025 Interconnections Decline | -12.3% QoQ [1] |
|---|---|
| Texas Q3 2025 Interconnections Decline | -18.7% QoQ [1] |
| Leading Financier Loan Originations Decline | -21.4% H2 2025 vs H1 2025 [2] |
The U.S. residential solar market significantly underperformed initial H2 2025 forecasts. This unanticipated contraction was evidenced by a -12.3% quarter-over-quarter drop in California interconnection applications in Q3 2025, alongside an even more pronounced -18.7% decline in Texas for the same period [1]. Leading residential solar financiers, Sunrun and Sunnova, also reported a combined -21.4% decrease in loan origination volume in H2 2025 compared to H1 2025, reflecting a direct slowdown in sales and project financing activities [2].
Policy shifts and macroeconomic pressures largely drove this market downturn. California's transition to Net Energy Metering 3.0 (NEM 3.0) reduced export compensation rates, consequently weakening demand for solar-only systems, although solar-plus-storage adoption saw a slight increase [1]. Meanwhile, the Texas market was adversely affected by consistently high-interest rates throughout 2024 and 2025, which escalated consumer financing costs for solar installations and diminished the overall savings proposition for homeowners [1].
Substantial downward revisions impacted the 2025 U.S. residential solar capacity forecast. IHS Markit adjusted its initial forecast from 15.8 GW to 13.7 GW, marking a 2.1 GW reduction or a -13.3% cut [3]. This significant revision indicates that the market contraction experienced in the second half of 2025 effectively negated any gains from the first half, resulting in year-end performance well below original expectations for the sector.
8. What Factors Impacted U.S. Solar Net Capacity Additions in 2025?
| Gross Solar Installations 2025 | 65.8 GWdc (EIA Final 2025 Data) [1] |
|---|---|
| Total Capacity Reduction 2025 | 4.65 GWdc (EIA Final 2025 Data) [1] |
| Net Solar Capacity Addition 2025 | 61.15 GWdc (EIA Final 2025 Data) [1] |
Solar capacity reductions significantly offset record-breaking gross installations in 2025. The U.S. solar sector installed a record 65.8 GWdc in gross capacity during 2025. However, this was significantly tempered by larger-than-anticipated capacity reductions, totaling 4.65 GWdc. This figure comprises 1.75 GWdc of retired capacity and 2.9 GWdc in long-term deratings, according to final annual data from the Energy Information Administration (EIA) [1]. This resulted in a net solar capacity addition of 61.15 GWdc, meaning the capacity reduction represented 7.1% of gross installations. This notably increased from the 3-4% range observed in the 2022-2024 period [2].
Increased retirements and deratings stemmed from aging assets and severe weather. The surge in these reductions was primarily driven by an aging fleet of utility-scale projects, particularly those from the 2010-2015 era, which are reaching the steeper part of their degradation curve. Severe weather events also played a significant role, with approximately 400 MW of deratings attributed to hail events in Texas and Hurricane Leo influencing retirements in Florida [1]. Furthermore, accelerated failure rates for early-generation modules contributed to these reductions [3]. Economic incentives for repowering, which leverage existing interconnection agreements and new tax credits, also encouraged decommissioning over continued operation [4].
This "net capacity drag" demands revised forecasting models for solar growth. The growing disparity between gross and net capacity figures is now considered a critical variable for forecasting and prediction markets. Analysts must incorporate factors such as age-based degradation, regional weather vulnerability, and evolving economics into their models, moving beyond simple gross installation forecasts. This trend suggests that this net capacity drag could increase to 10-12% of gross annual installations by 2030, necessitating higher gross installations to meet net capacity goals [1].
Sources (4)
- 1U.S. Energy Information Administration, "Form EIA-860 Annual Electric Generator Report, Final 2025 Data,eia.gov
- 2Lawrence Berkeley National Laboratory, "Utility-Scale Solar Data Update: 2025 Edition,emp.lbl.gov
- 3National Renewable Energy Laboratory, "PV Durability and Degradation: A 2025 Field Analysis,nrel.gov
- 4Grid Strategies LLC, "The Interconnection Queue in 2025: Repowering as a Solution,gridstrategiesllc.com
9. Which EIA Reports are Definitive for US Solar Capacity Data?
| Authoritative Data Source Release | Q4 2026 (for 2025 data, Electric Power Annual [1]) |
|---|---|
| Utility-Scale Capacity Revision Range | Typically low single-digit percentages (EIA analysis) [2] |
| Small-Scale Capacity Revision Range | Can exceed 5-10%, sometimes much higher (EIA [3]) |
The Electric Power Annual is the definitive source for solar capacity data. The Electric Power Annual (EPA) will serve as the final and authoritative source for U.S. solar capacity data regarding this market's resolution. Specifically, the 2025 edition, anticipated for release in the fourth quarter of 2026, supersedes all preliminary monthly reports. This definitive data is derived from the comprehensive annual census for utility-scale projects, collected via Form EIA-860 [2], and updated econometric models used for estimating small-scale capacity [3].
Monthly data experiences significant revisions, especially for small-scale capacity. Preliminary Electric Power Monthly (EPM) data is subject to considerable revisions compared to the final annual figures. Revisions for utility-scale capacity typically fall within the low single-digit percentages, while estimates for small-scale capacity can undergo much larger adjustments, frequently surpassing 5-10% [3]. For calculating total installed capacity for market resolution, it is crucial to combine utility-scale (>1 MW) data from EPA Table 4.3 with small-scale (<1 MW) data found in EPA Table 4.6 [1].
Market resolution should explicitly designate final Net Summer Capacity data. To ensure clear and undisputed market resolution, specific clauses should designate Net Summer Capacity data from the EPA 2025 reports, published in Q4 2026, as the final metric. This practice guarantees that resolution is based on verified and thoroughly reviewed data, thereby mitigating the inherent risks associated with using preliminary EPM figures, which are known to undergo substantial corrections [1].
Sources (3)
- 1U.S. Energy Information Administration. Electric Power Annual.eia.gov
- 2U.S. Energy Information Administration. Form EIA-860, 'Annual Electric Generator Report,' Instructions.eia.gov
- 3U.S. Energy Information Administration. "Methodology for estimating distributed solar PV capacity and generation.eia.gov
10. What Could Change the Odds
Key Catalysts
The continued expansion of commercial and manufacturing solar capacity in the US is supported by ongoing Inflation Reduction Act (IRA) incentives, with the Clean Energy Production Tax Credit and Clean Electricity Investment Tax Credit replacing prior credits from January 1, 2025 [1]. This is bolstered by significant growth in domestic solar manufacturing, which exceeded 60 GW of module production capacity by October 2025 [2]. Anticipated Federal Reserve interest rate cuts in 2025 are expected to lower financing costs, while efforts by the Department of Energy and FERC to streamline grid interconnection processes, including approvals for PJM's fast-track review in February 2025 [3] and MISO's ERAS in July 2025 [4], aim to accelerate utility-scale development. High electricity demand from data centers and AI also provides a strong market driver for new solar generation.
Conversely, several factors could dampen solar installation growth. The "One Big Beautiful Bill Act" (OBBBA), enacted on July 4, 2025, eliminated the 30% federal residential solar tax credit (Section 25D) for customer-owned systems effective January 1, 2026 [5], forecasting a significant decline in residential installations. Policy uncertainty, including potential Congressional action to reduce IRA tax credits and a declared "national energy emergency" with a focus on fossil fuels, with reinstated fossil fuel tax incentives in August-September 2025 [6] and adjusted legal frameworks promoting natural gas and coal generation in October 2025 [7], further creates headwinds. Increased tariffs, anti-dumping duties, and stricter Foreign Entities of Concern (FEOC) rules starting January 1, 2026 [8], along with persistent supply chain and labor shortages, could raise costs and create delays. The lingering impact of high interest rates from late 2024 and early 2025 also continues to affect project financing and consumer demand.
Key Dates & Catalysts
- Expiration: March 31, 2026
- Closes: March 31, 2026
