550 West Charter Way, Stockton, CA, USA
550 W Charter Way is the American Inn (Days Inn-affiliated), a ~75-room limited-service hotel operating 24/7 near Interstate 5 in Stockton. The hospitality property carries continuous HVAC, lighting, and water-heating loads typical of a mid-size lodging facility.
Projected savings.
Year 1
$26,700
Lifetime (~30 yr)
$1,992,000
By the numbers.
1.9
Years to payback
$4.7M
Total benefits (lifetime)
$2.7M
Property value gain
$120,436
Tax incentives captured
Levelized cost of electricity
Like most California 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 $1.18/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 30.0 kW solar system for on-site generation delivered as a rooftop array on the building.
The system now produces roughly 56,448 AC kWh of clean energy each year, an estimated $26,700 in year-one utility offsets, and around $1,992,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.
System spec
System design
- Site
- 550 West Charter Way, Stockton, CA, USA
CA - Utility
- PG&E
- Seismic rating
- 1.2
- Irradiance
- 2
- System size
- 30.0 kW DC
- Estimated production
- 56,448 AC kWh / year
- Year-1 utility offset
- $26,700
- Lifetime savings (~30 yr)
- $1,992,000
- Solar panels
- 60 × TSM-DEG18MC.20(II)
- Wire loss
- 2.0%
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