Best Solar Companies 2026: Installers Ranked by Value & Reviews

1. The 2026 Market Context: Bankruptcies, the ITC Expiration, and What Changed

Two seismic events reshaped residential solar in the past 18 months. Understanding them is prerequisite to choosing an installer intelligently.

The Bankruptcy Wave (2024–2025)

Solar Insure tracked over 100 residential solar company bankruptcies in 2024 alone — a figure that dwarfs any prior year in the industry’s history. The headline casualties: SunPower (Chapter 11, August 2024), Titan Solar Power (abrupt closure, June 2024, leaving 150,000+ customers without support), Sunnova (Chapter 11, June 2025), and ADT Solar (complete exit from the solar business, January 2024).

This wave was driven by a combination of rapidly rising interest rates, a glut of installation capacity, aggressive growth strategies funded by cheap debt, and the long shadow of California’s NEM 3.0 policy change that dramatically reduced solar economics in the country’s largest market. The lesson for homeowners: company longevity is now a first-order consideration, not an afterthought.

The End of the 30% Federal Solar Tax Credit

The One Big Beautiful Bill Act, signed by President Trump on July 4, 2025, eliminated the Section 25D residential solar Investment Tax Credit nearly a decade ahead of its scheduled 2034 expiration. For any homeowner buying solar with cash or a loan after December 31, 2025, the 30% federal credit — worth an average of $7,740 on a typical $25,800 system — is gone.

Critically, third-party-owned systems (leases and PPAs) still qualify under the commercial Section 48E ITC through 2027. Installation companies and their financing partners capture this credit and pass part of it through as lower monthly lease payments. According to Wood Mackenzie analysis, this structural shift has significantly benefited lease/PPA-focused companies like Sunrun, which saw a 205% year-over-year surge in quote requests on EnergySage in the months before the credit expired.

Per SEIA’s 2025 Year in Review, the US added 43 GW of new solar capacity in 2025 — the fifth consecutive year as the top source of new electricity-generating capacity. But the residential segment contracted 2% in 2025 and is forecast to fall another 18% in 2026 as buyers absorb the credit loss. The market will recover, SEIA projects, averaging 7% annual growth from 2027 to 2030.

2. Top Solar Companies Ranked for 2026

#1 Sunrun — Best for Lease/PPA and Battery Storage

Market share: 12.7% (Wood Mackenzie, 2025) | Coverage: 22 states + DC + Puerto Rico | Customers: 1 million+

Sunrun is the unambiguous market leader by volume, and its 2025 performance was remarkable: $2.96 billion in full-year revenue (up 45% year-over-year), 1.5 GWh of residential battery storage installed in 2025 representing roughly 48% of the entire US residential storage market, and a 70% battery attachment rate in Q2 2025. These numbers reflect a deliberate pivot toward becoming an energy services company, not simply a solar installer.

Where Sunrun excels: Its lease and PPA product is the strongest in the industry. Lease customers receive 25-year full coverage that includes panels, inverters, labor, monitoring, a production guarantee, roof leak protection, and even panel theft. This is genuinely comprehensive — most national competitors’ warranties don’t match it.

The honest critique: Sunrun’s warranty terms are dramatically weaker for cash and loan customers — typically a 10-year workmanship warranty with no production guarantee. Customer service is the persistent complaint: Sunrun relies heavily on subcontractors, and post-install service wait times are frequently cited as excessive in reviews. Freedom Forever, the #2 player, has been taking share from Sunrun partly on installation quality grounds.

Best for: Homeowners who want $0 down with minimal risk, value battery backup, and plan to stay in their home for the lease term. Not ideal for buyers seeking maximum long-term ROI through ownership.

#2 Freedom Forever — Best Market Growth Story

Market share: 6.1% (Wood Mackenzie, 2025) | Coverage: 22+ states | BBB: B+ rating

Freedom Forever entered 2026 as the #2 national residential installer and has been gaining ground on Sunrun through a combination of competitive pricing, $0-down financing options across lease, PPA, and loan products, and a 25-year production guarantee that provides meaningful post-install protection.

Where Freedom Forever excels: Financing flexibility. The company offers every major financing structure — cash, loan, lease, and PPA — with $0 down options across the board, which matters significantly in a market where the federal credit no longer offsets upfront costs.

The honest critique: Installation quality reviews are more variable than at Blue Raven (pre-acquisition) or quality regional installers. The B+ BBB rating and 3.51/5 average review score across 1,140+ reviews suggest a meaningful minority of customers have real service problems. Rapid growth sometimes outpaces quality control at installer companies, and Freedom Forever is in high-growth mode.

Best for: Homeowners in the 22+ states Freedom Forever covers who want flexible financing terms and are comfortable with a mid-tier customer experience track record.

#3 Palmetto Solar — Best Customer Monitoring Platform

Coverage: 19 states | BBB: A+ | Distinguishing feature: Palmetto Protect monitoring service

Palmetto operates as a technology-enabled solar company rather than a traditional installer — it contracts with local installer partners who must meet minimum warranty standards (25-year panel product warranty, 25-year linear performance guarantee, 5-year roof penetration warranty). The “Palmetto Protect” monitoring service provides proactive performance alerts and maintenance coordination that is genuinely best-in-class among national companies.

Where Palmetto excels: The 5-year roof penetration warranty is rare in the industry and reflects serious commitment to installation quality standards. For homeowners who want ongoing visibility into system performance without being technically sophisticated, the monitoring platform is excellent.

The honest critique: Palmetto typically prices above national average. BBB customer reviews average 3.52/5 — respectable but not exceptional. Some customers report misleading initial sales consultations. Because Palmetto uses third-party installers, experience quality depends heavily on which local partner serves your area.

Best for: Tech-comfortable homeowners who value system monitoring and want above-average warranty protections, and are willing to pay a premium for them.

#4 Momentum Solar — Best Lease Warranty for Customers

Coverage: 12 states | Founded: 2009 | BBB: A+ accredited

Momentum’s standout differentiator is its lease warranty structure: lease customers receive a 25-year workmanship warranty — 2.5 times the industry standard of 10 years. This addresses the most common long-term risk for solar owners: who fixes it when something goes wrong in year 15 and the installer has long since stopped returning calls.

Where Momentum excels: Lease warranty terms. The 25-year workmanship coverage is the strongest available from a national installer for lease customers. Financing options include cash, loan, lease, and PPA with $0 down across all 12 operating states.

The honest critique: Momentum’s BBB customer star rating (2.7/5) reflects persistent complaints about spam calling, scheduling delays, and customer communication. The company operates in only 12 states — limited geographic reach. Cash and loan buyers get only a 10-year workmanship warranty, a dramatic gap from the lease offer.

Best for: Homeowners in Momentum’s 12-state footprint who specifically want to lease and want the strongest possible labor warranty backing.

#5 Tesla Energy — Best Hardware, Worst Service

Market share: #4 nationally (Wood Mackenzie, 2025) | Coverage: National (online-driven) | Customer rating: 1.6/5 (ConsumerAffairs, 141 reviews)

Tesla’s solar offering — panels, Solar Roof (glass tiles), and Powerwall batteries — is technologically compelling. Installed costs of roughly $2.30–$3.10/watt are below the national median. The hardware itself, including Powerwall’s industry-leading battery performance and the Solar Roof’s aesthetics, is genuinely excellent.

The installation and service experience, however, is among the worst documented in the industry. Service response times exceeding 12 months are commonly reported. Multiple whistleblower accounts and lawsuits involving defective installations causing fire hazards have been reported. Tesla dropped from #2 to #4 in national market share, per Solar Builder analysis, as these reputation issues compound.

Tesla offers a 10-year comprehensive warranty plus 25-year panel performance warranty and 12.5-year inverter warranty (above the 10-year standard) — but the warranty is only as good as the company’s willingness to honor it promptly, which reviews suggest is a significant problem.

Best for: Buyers who are primarily purchasing a Powerwall battery and want Tesla’s ecosystem integration, with the solar array as a secondary consideration. Not recommended as a primary solar installation company if post-install service access matters to you.

SunPower (Complete Solaria) — Handle With Care

SunPower filed Chapter 11 in August 2024 and was acquired by Complete Solaria for $45 million, with the deal closing September 30, 2024. Complete Solaria rebranded back to “SunPower” in April 2025. The rebuilt company carries the SunPower brand and some of its panel technology reputation, but operates with approximately 900 employees (down from 3,000) and primarily through a dealer network with inconsistent geographic availability.

The honest assessment: SunPower panels made before the bankruptcy remain among the best available, and manufacturer warranties on those panels are valid. The “new SunPower” dealer network is uneven in quality. Before engaging with any SunPower-branded installer in 2026, verify that the specific company doing your installation has independent standing, licensing, and references — not just the SunPower brand association.

3. Side-by-Side Comparison Table

Source: Wood Mackenzie US Distributed Solar 2025; company warranty disclosures

4. Buy vs. Lease: How the ITC Expiration Changes Everything

Before July 4, 2025, the calculus for most homeowners was clear: buying solar with cash or a loan usually outperformed leasing in 25-year net present value terms, because the 30% federal tax credit made the upfront cost of ownership bearable and the long-term returns (selling power back to the grid, owning the system outright at end-of-loan) superior.

The elimination of Section 25D changes this significantly. Here’s why:

• Cash/loan buyers now pay the full pre-incentive price. On a median $24,900 system (at $2.49/watt per EnergySage H2 2025 data), that’s $7,470 more than the same purchase would have cost with the 30% ITC. Payback periods have extended from roughly 7–9 years to 10–12 years nationally.
• Lease/PPA providers still receive the commercial Section 48E ITC through 2027 and pass a portion of this through as lower monthly payments. The effective discount varies by provider — typically 15–25% of what a cash purchase would cost annually — but it is real and meaningful.
• The long-term ownership advantage persists. If you stay in your home for 20+ years, own the system outright, and your electricity rates continue rising (EIA data shows rates increased 31.6% from 2020 to 2025), the ownership math still wins. Lease payments often escalate 1.5–3% annually and can complicate home sales.
• If you’re uncertain about staying, leasing reduces commitment. Solar leases typically transfer to new home buyers, but they do affect the transaction — some buyers are reluctant to assume a 20-year lease obligation.

Use our solar panel ROI calculator to model your specific scenario — it factors in current electricity rates, system size, and available state incentives.

5. What Solar Costs in 2026 (Without the Federal Credit)

EnergySage’s H2 2025 Marketplace Intel Report shows the median solar quote price at $2.49/watt — essentially flat with H1 2025’s $2.48/watt and near record-low pricing. System costs vary significantly by region:

*Massachusetts and New Jersey maintain strong state incentives (SRECs, net metering, state rebates) that compress payback periods even without the federal ITC. Source: EnergySage H2 2025.

The practical takeaway: without the 30% federal credit, solar still makes financial sense in high-electricity-rate states with strong net metering. In lower-rate states without strong state programs, the math is tighter and requires longer time horizons. Our solar panel cost guide breaks down the full cost structure including equipment, labor, permits, and financing by state.

6. Certifications That Actually Matter

After a wave of bankruptcies, certifications have become more important — not because they prevent bankruptcy, but because they correlate with installation quality and professional accountability.

NABCEP Certification

The North American Board of Certified Energy Practitioners (NABCEP) credential is the highest professional standard in US solar installation. Earning NABCEP certification requires 58+ hours of advanced training, documented field experience, and passing a rigorous examination. The Board’s Photovoltaic Installation Professional (PVIP) designation is the one to verify for residential installs.

Important: Do not trust a company’s self-reported NABCEP claims. Verify directly at nabcep.org/directories using the installer’s name or company. This takes 30 seconds and has caught fraudulent credential claims that would have been invisible in a standard sales process.

State Contractor License

Every state requires electrical contractors to hold a current license. Verify through your state’s licensing board website before signing anything. An unlicensed installer voids your homeowner’s insurance coverage for any solar-related damage and may be ineligible to pull permits (meaning the system may not pass inspection).

Liability Insurance

Require at minimum $1 million in general liability coverage. Request the certificate of insurance directly — not just a verbal assurance. Subcontractor relationships (common at national companies like Sunrun) should also be covered by the prime contractor’s policy.

7. Red Flags: How to Spot a Solar Company That Won’t Last

The 2024 bankruptcy wave created a playbook of warning signs. Here are the highest-signal red flags, ranked by severity:

1. Same-day contract pressure — Any “this offer expires tonight” pitch is a manipulation tactic, not a real business constraint. Walk away. Equipment pricing changes slowly; any installer willing to lose your business over a 24-hour delay is using pressure as a substitute for value.
2. “Free solar” or complete bill elimination promises — There is no free solar. Lease agreements carry payments; loan-financed systems carry debt; cash purchases have opportunity costs. Any claim of complete bill elimination ignores grid connection fees, which are mandatory and can be $10–$30/month regardless of solar production.
3. Unverifiable NABCEP credentials — Cross-reference every certification claim at nabcep.org/directories. Companies that can’t back up credential claims with verifiable records are not compliant, which raises questions about permitting and installation practice.
4. Large cash deposits before permits are pulled — Standard practice is a small deposit at contract signing and progress payments tied to installation milestones. Requests for 30–50% upfront before permits are a red flag, particularly in the current environment where companies are experiencing cash flow stress.
5. Vague warranty language — The warranty document must explicitly state what’s covered (panels, inverters, wiring, roof penetrations, labor), for how many years, and who is responsible. “We stand behind our work” is not a warranty.
6. No verifiable local history — Ask for three customer references from your specific zip code or county, installed within the past 12 months. A company with no local footprint is a company with no local accountability.
7. Government program claims — There is no government program that makes solar free or substantially subsidized at the individual homeowner level in 2026. The 30% federal credit is gone. Salespeople who claim otherwise are either misinformed or deliberately misleading.

8. Local vs. National Solar: When Each Makes Sense

NREL analysis consistently shows local installers charge approximately 10% less than national companies for comparable systems. On a $25,000 system, that’s $2,500 — meaningful money, especially post-ITC expiration.

The case for local installers is strongest when:

• You can verify the company has been operating in your market for 5+ years with verifiable local references
• You want faster installation timelines and more direct project manager access
• The company has deep knowledge of your specific utility’s interconnection process and net metering policies
• You’re in a region with complex permitting (historic districts, HOA restrictions, specific local codes)

The case for national installers is stronger when:

• You want a lease or PPA with a comprehensive production guarantee and don’t want ownership risk
• You need specific financing products not available locally
• You want battery storage with integrated monitoring at scale (Sunrun’s storage ecosystem in particular)
• You can’t find a local installer with verifiable NABCEP credentials and solid recent references

The practical recommendation: get at least one quote from a local installer through EnergySage or SolarReviews alongside any national quote. EnergySage’s marketplace typically saves buyers 20% versus single-installer quotes by creating competitive tension.

Before you request any quotes, understand exactly how many panels your home needs and what system size is appropriate. Our solar panel sizing guide walks through the calculation using your actual annual kWh consumption and local peak sun hours — so you’re not relying on an installer’s estimate.