21863 MAIN ST
HAYWARD, CA
21863 Main St is a ~1,200 sq ft single-family residence built in 1941, located in a residential neighborhood in Hayward, CA. The property is a small detached home with typical single-family electrical load; no significant commercial or industrial energy operations identified.
Projected savings.
Year 1
$21,600
Lifetime (~30 yr)
$1,613,000
By the numbers.
2.3
Years to payback
$3.8M
Total benefits (lifetime)
$2.2M
Property value gain
$115,267
Tax incentives captured
Levelized cost of energy
Like most HAYWARD 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 $1.14/kWh from PG&E, reduced to $0.04/kWh from SolarPorts.
SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 30.0 kW solar system for on-site generation delivered as 1 SolarPort carport structure above the parking lot.
The system now produces roughly 47,040 AC kWh of clean energy each year, an estimated $21,600 in year-one utility offsets, and around $1,613,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.
System spec
System design
- Site
- 21863 MAIN ST
HAYWARD, CA 94541-2613 - APN
- 428-11-67
- Utility
- PG&E
- Seismic rating
- 1.83
- Irradiance
- 2
- System size
- 30.0 kW DC
- Estimated production
- 47,040 AC kWh / year
- Year-1 utility offset
- $21,600
- Lifetime savings (~30 yr)
- $1,613,000
- Solar panels
- 60 × Trina 480 BiFacial
- SolarPort structures
- 1
- Wire loss
- 2.0%
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