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1035 N McDowell Blvd

1035 N McDowell Blvd is part of Petaluma Business Center, a four-building office complex totaling ~213,210 sq ft near Highway 101 in Petaluma, CA. The campus hosts technology and professional services tenants, with standard commercial HVAC and lighting loads typical of multi-tenant office parks.

Aerial view of the  SolarPorts installation
Site aerial
System layout — solar carports at
System layout — solar carports

Projected savings.

Year 1

$198,400

Lifetime (~30 yr)

$14,800,000

By the numbers.

1.4

Years to payback

$35.1M

Total benefits (lifetime)

$20.3M

Property value gain

$735,841

Tax incentives captured

Levelized cost of energy

$0.02 / kWh · SolarPorts
vs.
$1.16 / kWh · PG&E

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 $1.16/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 225 kW solar system for on-site generation delivered as 3 SolarPort carport structures above the parking lot.

The system now produces roughly 424,463 AC kWh of clean energy each year, an estimated $198,400 in year-one utility offsets, and around $14,800,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.

System spec

System design

Site
1035 N McDowell Blvd
CA
Utility
PG&E
Seismic rating
1.2
Irradiance
2
System size
225.0 kW DC
Estimated production
424,463 AC kWh / year
Year-1 utility offset
$198,400
Lifetime savings (~30 yr)
$14,800,000
Solar panels
360 × Q.TRON XL-G2.3/BFG
SolarPort structures
3
Wire loss
2.0%

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