How to Price a Solar Panel Installation in the USA (2026 Guide)
Solar pricing in the US is typically quoted per watt ($/W) of system capacity. In 2026, installed prices range from $2.50 to $4.00/W depending on market, system size, equipment tier, and company overhead.
US Solar Pricing Components
| Component | Cost per watt | Notes |
|---|---|---|
| Solar panels | $0.25-$0.60/W | Tier 1 brands (SunPower, REC, Panasonic) vs economy |
| Inverter | $0.15-$0.35/W | String vs microinverters (Enphase) vs optimizers (SolarEdge) |
| Mounting hardware | $0.10-$0.20/W | Roof type affects this significantly |
| Electrical BOS | $0.15-$0.30/W | Conduit, wiring, disconnects, monitoring |
| Installation labor | $0.40-$0.80/W | Market rate varies significantly by state |
| Permitting and inspection | $0.05-$0.15/W | State/county fees |
| Overhead and profit | 20-35% of above | Sustains a healthy business |
Total installed cost: $2.50-$4.00/W A 7kW system costs $17,500-$28,000 before ITC.
Residential Quoting Approach
- Size the system: Annual consumption (kWh) ÷ production ratio for location = system size (kW)
- Price equipment: Apply your trade pricing from distributor
- Add labor: Hours × fully-loaded labor rate
- Add permit and utility fees
- Apply overhead and margin: 25-35% for a healthy residential solar business
- Present total and after-ITC net cost: Always show the customer their net investment after the 30% ITC
FAQs
What profit margin should a US solar installer make?
Gross margin of 25-40% is typical for well-run residential solar installers. Net margin (after overhead) should be 10-20%. Margins vary significantly by market – California and Northeast markets support higher margins than competitive Sunbelt markets.
Should I use price-per-watt or lump sum on my solar quotes?
Lump sum is more customer-friendly for residential – most homeowners don’t think in $/W terms. Use $/W internally for your estimating; present a total system cost on the proposal.
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Related reading:
- How to Start a Solar Installation Business in the USA
- What Certifications Do You Need to Be a Solar Installer in the USA?
- How to Get NABCEP Certified as a Solar Installer in the USA
- What is Net Energy Metering (NEM) and How Does It Work for US Solar Installers?
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