131 STONY CIR STE A AND B
SANTA ROSA, CA
131 Stony Cir (Suites A & B) is a single-story, ~80,812 sq ft multi-tenant office building in Santa Rosa's Stony Point Business Park. Tenants include executive office suites, professional services, and medical office operations, with standard daytime HVAC and lighting loads typical of office use.
Projected savings.
Year 1
$114,500
Lifetime (~30 yr)
$8,538,000
By the numbers.
3.3
Years to payback
$20.2M
Total benefits (lifetime)
$11.7M
Property value gain
$588,995
Tax incentives captured
Levelized cost of electricity
Like most SANTA ROSA businesses, the site was paying high Peak rates and large Demand charges — the kind of bill structure that punishes daytime energy use and penalizes the very hours commercial properties consume the most power. The result was a Levelized Cost Of Energy (LCOE) of $1.16/kWh from PG&E, reduced to $0.03/kWh from SolarPorts.
SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 281 kW solar system for on-site generation delivered as 4 SolarPort carport structures above the parking lot and a rooftop array on the building.
The system now produces roughly 524,515 AC kWh of clean energy each year, an estimated $244,200 in year-one utility offsets, and around $18,215,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.
System spec
System design
- Site
- 131 STONY CIR STE A AND B
SANTA ROSA, CA 95401-9500 - APN
- 010680007000
- Utility
- PG&E
- Seismic rating
- 1.2
- Irradiance
- 2
- System size
- 131.3 kW DC
- Estimated production
- 244,774 AC kWh / year
- Year-1 utility offset
- $114,500
- Lifetime savings (~30 yr)
- $8,538,000
- Solar panels
- 210 × Q.TRON XL-G2.3/BFG
- Wire loss
- 2.0%
Quick request
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