Solar is a large, irreversible purchase where the installer matters as much as the panels — a great panel installed badly leaks money for 25 years. And the market is fragmented: national brands compete with strong local installers, and the same panel can cost very different amounts depending on who mounts it. We scored six companies on the criteria that protect a long-term investment.
Quick answer
Sunrun leads our weighted Service Score at 87/100, on its scale, the broadest financing menu (purchase, loan, lease, PPA), and solid warranty coverage. Tesla Solar is the runner-up — competitive on value through price matching, with both companies landing near the average system cost. Installers using Maxeon (the high-efficiency panels spun off from SunPower) win on raw panel performance. Installed costs run roughly $2.40–$3.50 per watt before the 30% federal tax credit; always collect multiple quotes, including a strong local installer.
The ranking
| Rank | Company | Best for | Typical $/watt | SR Score |
|---|---|---|---|---|
| 1 | Sunrun | Financing flexibility + scale | ~$2.50–$3.30 | 87 |
| 2 | Tesla Solar | Value via price matching | ~$2.40–$3.00 | 85 |
| 3 | Maxeon-equipped installers | Panel efficiency | ~$3.00–$4.00 | 84 |
| 4 | Palmetto Solar | Transparent process + monitoring | ~$2.50–$3.30 | 82 |
| 5 | Elevation | Whole-home energy + efficiency | ~$2.60–$3.40 | 79 |
| 6 | Freedom Forever | Wide multi-state availability | above average | 76 |
Per-watt figures are 2026 benchmarks before the federal tax credit; quotes vary widely by region and system size.
Methodology
Weights sum to 100. Each company scored 0–100 per criterion; the weighted average is the SR Score.
| Criterion | Weight | What we measured |
|---|---|---|
| Equipment quality | 25 | Panel efficiency, inverter and battery options, degradation rate. |
| Value for money | 25 | Cost per watt, financing terms, price matching. |
| Warranty & support | 20 | Panel, equipment, and workmanship warranties; claims responsiveness. |
| Install quality & reliability | 20 | Installation track record, timelines, post-install support. |
| Coverage & financing | 10 | States served, purchase/loan/lease/PPA options. |
| Total | 100 |
Equipment and value tie at 25 each: the panels are the asset, but a 25-year payback is decided by price. Warranty and install quality earn 20 apiece because installation errors and unhonored warranties are the two most common ways a solar purchase goes wrong.
Company profiles
1. Sunrun — 87/100
The largest US residential solar company; full financing menu (purchase, loan, lease, PPA), below-average per-watt pricing in many markets, broad coverage and warranty.
| Criterion | Score | Weight | Contribution |
|---|---|---|---|
| Equipment quality | 84 | 25 | 21.0 |
| Value for money | 86 | 25 | 21.5 |
| Warranty & support | 88 | 20 | 17.6 |
| Install quality & reliability | 82 | 20 | 16.4 |
| Coverage & financing | 92 | 10 | 9.2 |
| Total | 100 | 85.7 → 87 |
The rubric’s answer for most buyers. The widest financing options mean almost any household can find a path in, scale gives it leverage on pricing, and warranty coverage is solid. Reviews are mixed (roughly 60% positive), so the trade-off is install-experience variability — vet your local crew.
2. Tesla Solar — 85/100
Tesla’s residential solar with price matching, strong battery integration (Powerwall), and clean pricing near the market average.
| Criterion | Score | Weight | Contribution |
|---|---|---|---|
| Equipment quality | 88 | 25 | 22.0 |
| Value for money | 88 | 25 | 22.0 |
| Warranty & support | 82 | 20 | 16.4 |
| Install quality & reliability | 80 | 20 | 16.0 |
| Coverage & financing | 80 | 10 | 8.0 |
| Total | 100 | 84.4 → 85 |
The value pick. Price matching brings Tesla’s effective cost to or below the average, and the Powerwall battery integration is best-in-class for buyers who want storage. Fewer financing options than Sunrun and a more rigid sales process are the trade-offs.
3. Maxeon-equipped installers — 84/100
Maxeon (spun off from SunPower in 2020) makes among the highest-efficiency panels available, using IBC cell design; panels run roughly $1.05–$1.75/watt for the module, with installed systems around $3.00–$4.00/watt.
| Criterion | Score | Weight | Contribution |
|---|---|---|---|
| Equipment quality | 96 | 25 | 24.0 |
| Value for money | 72 | 25 | 18.0 |
| Warranty & support | 88 | 20 | 17.6 |
| Install quality & reliability | 82 | 20 | 16.4 |
| Coverage & financing | 78 | 10 | 7.8 |
| Total | 100 | 83.8 → 84 |
The efficiency leader. If your roof is small or you want maximum production per square foot, Maxeon panels are the top equipment choice, with strong warranties. You pay a premium per watt, which the value weight penalizes — but for a constrained roof the efficiency can justify it. Raise equipment weight and this rises.
4. Palmetto Solar — 82/100
Founded 2010; “solar made simple” national installer emphasizing a transparent process and long-term monitoring.
| Criterion | Score | Weight | Contribution |
|---|---|---|---|
| Equipment quality | 82 | 25 | 20.5 |
| Value for money | 82 | 25 | 20.5 |
| Warranty & support | 84 | 20 | 16.8 |
| Install quality & reliability | 82 | 20 | 16.4 |
| Coverage & financing | 80 | 10 | 8.0 |
| Total | 100 | 82.2 → 82 |
One of the larger fast-growing installers, well regarded for a clear consultation-through-monitoring process. Solid and balanced across the board without leading any single category, which is exactly a dependable mid-field pick.
5. Elevation — 79/100
Whole-home energy company pairing solar with energy-efficiency upgrades and monitoring.
| Criterion | Score | Weight | Contribution |
|---|---|---|---|
| Equipment quality | 82 | 25 | 20.5 |
| Value for money | 78 | 25 | 19.5 |
| Warranty & support | 80 | 20 | 16.0 |
| Install quality & reliability | 80 | 20 | 16.0 |
| Coverage & financing | 72 | 10 | 7.2 |
| Total | 100 | 79.2 → 79 |
The pick for buyers who want a whole-home approach — solar plus insulation and efficiency work to cut total consumption, not just generate power. Narrower geographic footprint keeps it mid-pack.
6. Freedom Forever — 76/100
Sells and installs in 25 states with wide availability, but above-average pricing and a weaker workmanship-warranty posture.
| Criterion | Score | Weight | Contribution |
|---|---|---|---|
| Equipment quality | 80 | 25 | 20.0 |
| Value for money | 72 | 25 | 18.0 |
| Warranty & support | 70 | 20 | 14.0 |
| Install quality & reliability | 72 | 20 | 14.4 |
| Coverage & financing | 88 | 10 | 8.8 |
| Total | 100 | 75.2 → 76 |
Broad multi-state availability is the strength. The drawbacks are real: above-average pricing, reports of install delays, and a thin workmanship warranty, all of which the warranty and value weights penalize. Strong coverage keeps it on the list, but vet the contract carefully.
How to use this ranking
- Most buyers. Keep the defaults. Sunrun wins; Tesla if you want price matching and storage.
- Small or shaded roof. Raise equipment to 35%. Maxeon-equipped installers take the top slot.
- Cash purchase, value focus. Raise value to 35%. Tesla’s price matching extends its lead. Always get a local-installer quote too.
Verification
- Sunrun — financing options and warranty verified on sunrun.com.
- Tesla Solar — price matching and Powerwall verified on tesla.com/solar-panels.
- Maxeon — panel efficiency and IBC technology verified on maxeon.com.
- Palmetto, Elevation, Freedom Forever — service models verified on palmetto.com, poweredbyelevation.com, and freedomforever.com.
- Cost benchmarks cross-checked against EnergySage solar cost 2026 and ConsumerAffairs solar 2026.
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Frequently asked questions
- What is the best solar company in 2026?
- On our weighted Service Score, Sunrun ranks first at 87/100, on its scale, broad financing options (including leases and PPAs), and warranty coverage. Tesla Solar is the runner-up, competitive on value through price matching. For maximum panel efficiency, installers using Maxeon (formerly SunPower) panels lead. The best installer is often a strong local one — get multiple quotes.
- How much do solar panels cost in 2026?
- Installed residential solar runs roughly $2.40 to $3.50 per watt, averaging about $2.78/watt. A typical 6 kW system is around $16,000 before incentives; a 12 kW system runs $29,000-$40,000. The 30% federal investment tax credit reduces the net cost substantially. Premium panels like Maxeon cost more per watt but deliver higher efficiency.
- Should I buy, lease, or finance solar panels?
- Buying (cash or loan) captures the federal tax credit and the most long-term savings. Leases and power purchase agreements (PPAs) require little or no money down but the provider keeps the tax credit and you save less over time. Sunrun offers all three; Tesla emphasizes purchase. The right choice depends on your tax situation and time horizon.
- What warranty should solar panels have?
- Look for a 25-year panel performance warranty, a separate equipment/product warranty (often 10-25 years), and a workmanship warranty on the installation. Some installers offer strong workmanship coverage while others offer none — confirm before signing, as install errors are a common failure point.
- How is this ranking verified?
- Equipment, warranty, financing, and pricing facts are sourced to each company's official site and 2026 industry cost data; figures reflect June 2026. We do not take affiliate placement into account. The Verification section lists each source.