M&A activity snapshot
Solar installation is two markets with opposite M&A conditions. The U.S. installed 43.2 GWdc in 2025, a 14% decline from 2024. Inside distributed solar, commercial grew 6% to a record 2,345 MWdc while residential contracted 2% and community solar 25%.
Residential took a policy hit in 2026. Homeowners can't claim residential clean energy credits for expenditures made after December 31, 2025. Residential installs fell to 995 MWdc in Q2 2026, the lowest quarter in five years, and Wood Mackenzie expects a 23% contraction in 2026 before growth resumes in 2027.
Most priced residential transactions have been distressed. SunPower agreed in bankruptcy to sell Blue Raven Solar, its new-homes business and its dealer network to Complete Solaria for $45 million in cash. Sunnova filed for Chapter 11 in June 2025 and agreed to sell New Homes assets to Lennar for approximately $16.0 million. The bulk of the company later went to Solaris for a credit bid of DIP financing plus US$25 million in cash.
Classification note: the Census NAICS index places "Solar panel installation" under 238210, Electrical Contractors, and utility-scale solar structure construction under 237130.
Who is buying
Residential platforms consolidating sales capacity. SunPower (the former Complete Solaria) agreed to buy Sunder Energy for $40 million in cash plus 10 million shares, describing the deal as a move to the U.S. No. 5 spot. Sunder sells systems that its customers' crews install, so the deal bought sales reach, not crews.
Commercial O&M platforms. QE Solar, an O&M and engineering provider for utility-scale and commercial solar, acquired the O&M division of EPC company Vanguard Energy Partners. Recurring service contracts on an installed fleet are the part of solar that buyers can underwrite most easily.
Distressed and credit buyers. Lenders and asset buyers took most of Sunnova, and homebuilder Lennar bought its new-homes unit. Owners of small residential installers should expect this buyer set to price on assets and backlog, not on earnings.
What buyers look for
Segment and financing mix. Buyers first ask what share of revenue is residential versus commercial, and how residential customers pay. Wood Mackenzie reports installers are shifting from cash and loan sales to third-party ownership now that the homeowner credit is gone. An installer with an active TPO financing partner is selling into the market that still exists.
Credit-qualified backlog. For commercial work, buyers check how each project qualifies for the investment credit. The 48E base credit is 6%, rising up to 30% for facilities that meet prevailing wage and registered apprenticeship requirements, so payroll and apprenticeship records are diligence items, not paperwork.
Storage capability. 37% of new residential systems included storage in 2025, versus 11% of non-residential installs. Battery installs raise ticket size and reduce dependence on export credits.
Pricing discipline. Berkeley Lab found median prices across the top-100 residential installers ranged from $2.4 to $6.3/W in 2025. Buyers want to know where a target sits in that range and whether its margins depend on high-pressure sales.
What makes a strong company
The installers most likely to attract a going-concern buyer typically show:
- A meaningful commercial, storage or O&M revenue stream, not only residential new sales.
- Correct licensing in every state served, such as California's C-46 Solar Contractor classification, plus electrical licenses where required.
- NABCEP-certified installers on staff; the certification is voluntary, which is why buyers notice it.
- Low warranty and callback exposure, with workmanship claims tracked by job.
- Interconnection know-how in its utility territories; Wood Mackenzie names interconnection timelines as a limit on non-residential growth.
- In California, a clean record on the net billing tariff that replaced NEM 2.0 for interconnection applications on or after April 15, 2023, and on the state's prevailing-wage rule for certain NEM-eligible installs.
Valuation and deal structure
No GF Data, Capstone Partners or other public series reports an EBITDA multiple for solar installers. The priced deals available are proxies, and should be read that way:
- Distressed asset sales. SunPower's install and dealer businesses at $45 million in cash; Sunnova's New Homes assets at approximately $16.0 million. These are bankruptcy prices, not going-concern values.
- Revenue proxy. Sunder Energy forecast about $74 million of 2025 revenue against $40 million in cash plus 10 million shares. The $40 million cash portion alone is roughly 0.5x forecast revenue by Axia's arithmetic, before the share component, for a sales company rather than an installer.
Deal structure follows the risk. Stock consideration, as in the Sunder deal, shifts part of the price onto the buyer's future performance. Expect buyers to tie consideration to project completion, interconnection and credit qualification on backlog that has not yet been placed in service. Owners can test a range with the valuation tool; Axia does not value businesses or represent sellers.
Outlook
Over the next 12-24 months, residential consolidation will likely continue through distress and platform add-ons, with Wood Mackenzie expecting the 23% residential decline in 2026 to give way to growth in 2027. Commercial and O&M businesses should draw steadier interest, but the commercial credit ends for solar facilities placed in service after December 31, 2027 unless construction began by July 4, 2026. A June 2026 ruling vacated the IRS's beginning-of-construction notice, and an appeal or new guidance is possible, so qualification rules may still move.
Labor demand is still rising: BLS projects solar PV installer jobs to grow 37 percent from 2025 to 2035. Installers that can move crews toward storage, commercial and service work hold their value best.
See the parent Energy & Infrastructure Services M&A overview, and read how trigger events time ownership transitions.