Commercial Solar Cost Basics (2026)
Published 2026-02-20 · Updated 2026-07-07 · MySunROI Research Team
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Commercial solar costs $1.50–$2.50/W — lower than residential due to scale. Businesses may use MACRS depreciation, REAP grants, and ITC — different economics than home solar.
Commercial pricing
- Small business 50 kW: $75,000–$125,000
- Lower $/W at scale
- PPA common for cash-constrained businesses
Business incentives
30% ITC plus accelerated depreciation. REAP grants for rural businesses.
Solar costs by state
Frequently Asked Questions
Is commercial cheaper per watt?
Yes — typically 30–50% lower $/W than residential.