164 MAIN ST
LOS ALTOS, CA
164 Main St is a multi-tenant mixed-use commercial building in downtown Los Altos housing ground-floor retail boutiques (e.g., apparel, jewelry) and upper-floor professional services offices across approximately 11 tenanted suites. Energy use is typical of small-bay retail and low-intensity professional office occupancies.
Projected savings.
Year 1
$442,700
Lifetime (~30 yr)
$33,015,000
By the numbers.
1.3
Years to payback
$78.3M
Total benefits (lifetime)
$45.3M
Property value gain
$1,587,295
Tax incentives captured
Levelized cost of electricity
Like most LOS ALTOS 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 $0.02/kWh from SolarPorts.
SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 423 kW solar system for on-site generation delivered as 12 SolarPort carport structures above the parking lot and a rooftop array on the building.
The system now produces roughly 950,041 AC kWh of clean energy each year, an estimated $442,700 in year-one utility offsets, and around $33,015,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.
System spec
System design
- Site
- 164 MAIN ST
LOS ALTOS, CA 94022-2905 - APN
- 16738022
- Utility
- PG&E
- Seismic rating
- 1.71
- Irradiance
- 2
- System size
- 422.6 kW DC
- Estimated production
- 950,041 AC kWh / year
- Year-1 utility offset
- $442,700
- Lifetime savings (~30 yr)
- $33,015,000
- Solar panels
-
709 ×
Q.PEAK DUO XL-G11S3/BFG 595
(658 carport · 51 rooftop) - SolarPort structures
- 12
- Wire loss
- 2.0%
Quick request
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