Bay Area C&I · total cost, bill impact, and payback before you commit.
A written sheet before you commit to a site visit. The return, bill savings, and payback below are examples, with the assumptions next to them. This is not a quote and not a guarantee of savings.
Estimate · example
About 12–18% IRR.
Example for a roughly 20-year cash / direct-purchase view. It assumes a federal investment tax credit and MACRS, a Bay Area PG&E or CCA commercial bill (including MCE) under Net Billing / Solar Billing Plan, and savings from self-consumption plus demand shaving. The credit rate is not automatic. Not a quote and not a guarantee.
Estimate · example
About 30–50% of the annual electric bill.
Estimate, compared with the current PG&E or CCA time-of-use bill plus demand charges. This is not a PPA discount. Not a guarantee.
Estimate · example
About 4–7 years.
Estimate, on the same cash / direct-purchase view as the return above, including a federal ITC and MACRS in the example. Not a quote and not a guarantee.
Estimate · example
If demand charges are a large part of the bill, the cost sheet can include a battery sized at about 40% of the solar kilowatts (±20%), for about 2 hours.
That size is a planning example, not a design. The battery is priced separately from the bill-savings view above. Your sheet uses your interval data.
When it does not work
If the project does not pencil, the cost sheet says that in writing. You can stop there.
Warehouses, multifamily, offices, and light industrial buildings in the Bay Area and Northern California, including Marin. We can start from a PG&E or MCE bill.
Large roofs and daytime loads. The cost sheet starts from the bill and the roof area you send.
Common-area meters, house loads, and owner-paid electricity. Tell us which meter you want priced.
Weekday load, often with a demand charge. A recent bill is enough to see whether a sheet is worth doing.
Process loads and roof or yard constraints. We say so on the sheet if the site is a poor fit on paper.
For a home, start on residential solar. This page is for commercial buildings.
Commercial solar that starts construction after July 4, 2026 must be in service by December 31, 2027 to keep the credit. Consult your tax advisor.
The credit rate is not automatic. This is general information, not tax advice. The longer note we already publish is how the commercial solar credit deadline works now.
Four steps. The site visit is optional. There is no hard close.
Send a recent PG&E or MCE bill, or the monthly amount and roof size.
We review the bill, tariff, and roof on paper. No visit yet.
Estimated IRR, percent of the bill saved, payback window, battery option, and a written note if it does not pencil.
Only if you want one after you have read the sheet.
We aim to reply within one business day. If it does not pencil, we will say so.
We’ll reply with a cost sheet, including a written note if it does not pencil. We aim to reply within one business day.
These are commercial projects already described on this site. No new performance numbers are added here. The company total on our homepage is 200+ California projects since 2018. That figure is not a result for any one building below.
Self-financed rooftop solar selling power to tenants at 10% below PG&E rates. New landlord revenue, EV chargers as tenant amenity, automated billing.
Rooftop revenueRooftop solar across an active agricultural operation in Sonoma County. System designed around the working facility with no disruption to daily operations.
Commercial solarCustom timber-framed outdoor canopy with bifacial solar panels integrated overhead. Generates clean power while creating a shaded gathering space below.
Architectural solarCalifornia contractor license CSLB #1107653. Google reviews. More commercial context is on the commercial solar page.