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1220 E PLAZA BLVD
NATIONAL CITY, CA

1220 E Plaza Blvd is a Smart & Final Extra! warehouse grocery store, approximately 25,000–40,000 sq ft, operating 6 AM–10 PM daily. The store carries fresh perishables, frozen foods, dairy, and bulk goods, driving substantial refrigeration and HVAC energy loads.

System layout — solar carports at NATIONAL CITY
System layout — solar carports

Projected savings.

Year 1

$76,300

Lifetime (~30 yr)

$5,692,000

By the numbers.

2.6

Years to payback

$13.5M

Total benefits (lifetime)

$7.8M

Property value gain

$459,488

Tax incentives captured

Levelized cost of electricity

$0.04 / kWh · SolarPorts
vs.
$1.05 / kWh · SDG&E

Like most NATIONAL CITY 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 $1.05/kWh from SDG&E, reduced to $0.04/kWh from SolarPorts.

SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 115 kW solar system for on-site generation delivered as 4 SolarPort carport structures above the parking lot.

The system now produces roughly 180,634 AC kWh of clean energy each year, an estimated $76,300 in year-one utility offsets, and around $5,692,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.

System spec

System design

Site
1220 E PLAZA BLVD
NATIONAL CITY, CA 91950-3788
APN
5573220900
Utility
SDG&E
Seismic rating
0.92
Irradiance
2
System size
115.2 kW DC
Estimated production
180,634 AC kWh / year
Year-1 utility offset
$76,300
Lifetime savings (~30 yr)
$5,692,000
Solar panels
240 × Q.PEAK DUO XL-G10.c
SolarPort structures
4
Wire loss
2.0%

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