Powering California Businesses with Solar Carports.

Commercial solar carport systems typically range from $3 to $6 per watt installed. A 100kW system covering 60–80 spaces might cost $350,000–$550,000 before incentives. After stacking the federal ITC (up to 50% with bonus adders), MACRS bonus depreciation, and available California incentives, effective net cost can drop 60–80% in year one. Most projects achieve payback within 5–7 years.

We recommend a minimum of 20–30 parking spaces for a viable commercial project. Systems are most cost-effective at 60+ spaces. Our team can assess virtually any parking lot configuration.

From contract to commission, most projects take 3–6 months: 2–4 weeks for design, 4–10 weeks for permitting (varies by jurisdiction), and 4–8 weeks for installation. We stage work to minimize disruption to your parking operations.

Option One Solar is a full-service EPC firm handling everything in-house — design through permitting, construction, and ongoing support — with no subcontracting. CSLB licensed, fully insured, 500+ California commercial installations.

Buy it. For commercial properties ownership is almost always the better deal, because it lets you capture the ITC and MACRS depreciation directly instead of handing them to a third party. We do not facilitate PPAs on commercial projects — cash or a loan, and the asset is yours. If the numbers only work as a PPA, we would rather tell you that than write one.

We work with commercial solar lenders offering 7–25 year terms. Many clients finance 100% of project cost, achieving positive cash flow from month one because energy savings immediately exceed loan payments.

Federal: the ITC at 30% base, stackable toward 50% with the Domestic Content bonus (+10%, which our carports qualify for) and the Energy Community bonus (+10%). The begin-construction window that ran to July 2026 has closed, so a project starting now must be placed in service by 31 December 2027 to qualify — a much shorter runway than projects that started earlier. MACRS 100% bonus depreciation still applies. Two programs have closed to new projects: the Section 179D deduction (construction had to begin by 30 June 2026) and the Section 30C EV charging credit (expired 30 June 2026). California: SGIP cash rebate ($0.25–$1.00/Wh for battery storage), NEM 3.0 net metering, AB 2462 property tax exclusion. What your project actually qualifies for depends on when it starts and what it includes, so we work that out against your specifics rather than a brochure.

California utility rates rose over 60% between 2020 and 2025, with commercial TOU rates hitting record highs. AB 2511 requires EV-ready parking at commercial facilities, and incentive programs are projected to decrease in coming years. Businesses are moving now to lock in maximum savings.

Commercial properties with solar command 4–6% higher sale prices on average. California's AB 2462 also excludes active solar systems from property tax reassessment, meaning your taxes won't increase when you install solar.

True off-grid is rarely cost-effective commercially. However, solar + battery storage can achieve 80–100% energy independence during daylight and provide critical backup during outages — increasingly valuable given California's wildfire-related grid disruptions.

Yes. We have extensive experience with triple-net leases, multi-tenant buildings, and property management firms — navigating landlord-tenant agreements, utility billing structures, and lease addenda to make solar work for all parties.

Absolutely. We design systems with future expansion in mind — whether extending the canopy, adding solar capacity, or integrating battery storage post-installation. Future phases are architected from day one.

Yes — permitting is fully managed in-house. Commercial solar carports require structural engineering stamps, electrical permits, building permits, and utility interconnection agreements. We've navigated permitting in dozens of California jurisdictions through to PTO.