☀️ Is My Solar Panel Quote Fair? What to Know Before Signing
You just sat through a 2-hour solar sales presentation and walked away with a proposal for $32,000 or $0 down and $189/month. You have no idea if that is a good deal. Here is how to figure it out.
How Solar Pricing Actually Works
Solar is priced per watt of system capacity. A fair all-in price (equipment, installation, permits, interconnection) for a residential rooftop solar system in 2026 is roughly $2.50 to $3.80 per watt before incentives. The 30% federal tax credit (ITC) brings that down significantly.
Typical system sizes and costs before the federal tax credit:
- 5 kW system: $12,500 to $19,000 installed
- 8 kW system: $20,000 to $30,400 installed
- 10 kW system: $25,000 to $38,000 installed
- 12 kW system: $30,000 to $45,600 installed
After the 30% federal tax credit, those numbers drop by 30%. So a $30,000 system has a net cost of about $21,000 if you owe at least that much in federal taxes.
Price Per Watt: The Number to Obsess Over
Ask any solar company: "What is my cost per watt before incentives?" Take the total system price, divide by the system size in watts. A 10 kW (10,000 watt) system quoted at $40,000 is $4.00/watt, which is above fair market range. The same system at $28,000 is $2.80/watt, which is competitive.
Anything above $4.00/watt deserves serious scrutiny. Anything below $2.50/watt should also raise questions about equipment quality or installer reputation.
Panel Quality and What It Costs
Panel brands matter but not as much as salespeople imply. Tier 1 panels from reputable manufacturers (Q CELLS, REC, Panasonic, SunPower, Canadian Solar) are all solid choices. The difference between a good panel and a great panel is maybe $0.10-0.20/watt in real value. A salesperson pushing a $0.80/watt premium for "premium" panels is overselling the difference.
Battery storage (like Tesla Powerwall or Enphase IQ) adds $10,000 to $18,000 per unit installed. This changes the math significantly and should be evaluated separately from the panels themselves.
Red Flags in Solar Quotes
Very high per-watt price with vague explanations. "Our panels are the best" is not a justification for $5.00/watt when competitors quote $3.20/watt for similar equipment.
Overestimating your production. Software like PVWatts (free, from the government) can calculate estimated production for any address. If a company's estimate is 20-30% higher than PVWatts, they are inflating your payback projections.
Loan financing with dealer fees baked in. Many solar loans have dealer fees of 15-30% added to the principal. A $25,000 system can become a $32,000 loan because of the financing fee. This is legal but often not clearly disclosed.
Leases and PPAs presented as better than ownership. Solar leases and power purchase agreements (PPAs) can make sense in some situations, but they typically generate less financial benefit than ownership for homeowners who can use the tax credit. Be skeptical of a strong push away from ownership.
Pressure to sign before utility rates go up. Utility rates do go up, but they go up whether you sign this week or next month. This is a sales tactic.
What a Fair Solar Quote Looks Like
A fair solar quote is between $2.75 and $3.50/watt before incentives, uses recognizable Tier 1 panels, specifies the inverter brand and model, includes permit and interconnection costs, provides production estimates you can verify independently, and gives you a realistic payback period of 7-12 years after incentives.
Get at least three quotes. The solar market is competitive and quotes often vary by $5,000 to $10,000 for the same system. The middle quote (not the cheapest, not the most expensive) is often the best value.
Upload your solar proposal to QuoteScore for a free analysis. We will benchmark the per-watt pricing, flag financing markups, and help you compare proposals apples to apples.