1655 Old County Road
San Carlos, CA
1655 Old County Road is the facility of Arata Equipment Company, a commercial and industrial solid waste collection equipment dealer and distributor founded in 1953, serving California and Nevada. The site includes a warehouse for parts storage supporting the refuse and recycling equipment sector, with daytime weekday operations.
Projected savings.
Year 1
$1,300
Lifetime (~30 yr)
$95,000
By the numbers.
1.5
Years to payback
$0.2M
Total benefits (lifetime)
$0.1M
Property value gain
$4,112
Tax incentives captured
Levelized cost of electricity
Like most San Carlos 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 $0.84/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 2.0 kW solar system for on-site generation delivered as a rooftop array on the building.
The system now produces roughly 3,764 AC kWh of clean energy each year, an estimated $1,300 in year-one utility offsets, and around $95,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.
System spec
System design
- Site
- 1655 Old County Road
San Carlos, CA 94070 - APN
- 046223100
- Utility
- PG&E
- Seismic rating
- 1.2
- Irradiance
- 2
- System size
- 2.0 kW DC
- Estimated production
- 3,764 AC kWh / year
- Year-1 utility offset
- $1,300
- Lifetime savings (~30 yr)
- $95,000
- Solar panels
- 4 × TSM-DEG18MC.20(II)
- Wire loss
- 2.0%
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