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3901 Sonoma Boulevard, Vallejo, CA, USA
Vallejo, CA

3901 Sonoma Blvd is an approximately 16,500 sq ft warehouse-style grocery store (Smart & Final Extra) built in 1974. The site operates daily 6 AM–10 PM with high refrigeration, lighting, and HVAC loads typical of food retail.

System layout — solar carports at Vallejo
System layout — solar carports

Projected savings.

Year 1

$263,300

Lifetime (~30 yr)

$19,638,000

By the numbers.

2.6

Years to payback

$46.6M

Total benefits (lifetime)

$26.9M

Property value gain

$1,109,556

Tax incentives captured

Levelized cost of electricity

$0.04 / kWh · SolarPorts
vs.
$1.16 / kWh · PG&E

Like most Vallejo 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 $0.04/kWh from SolarPorts.

SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 300 kW solar system for on-site generation delivered as 10 SolarPort carport structures above the parking lot.

The system now produces roughly 564,480 AC kWh of clean energy each year, an estimated $263,300 in year-one utility offsets, and around $19,638,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.

System spec

System design

Site
3901 Sonoma Boulevard, Vallejo, CA, USA
Vallejo, CA 94590
APN
0051060140
Utility
PG&E
Seismic rating
1
Irradiance
2
System size
300.0 kW DC
Estimated production
564,480 AC kWh / year
Year-1 utility offset
$263,300
Lifetime savings (~30 yr)
$19,638,000
Solar panels
600 × TSM-DEG18MC.20(II)
SolarPort structures
10
Wire loss
2.0%

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