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3550 ROUND BARN BLVD
SANTA ROSA, CA

3550 Round Barn Blvd is Fountaingrove Center, a three-building Class A office complex totaling ~161,055 sq ft across three stories each, with HVAC energy management systems and multi-tenant professional services occupancy. The site features ample surface parking, standard daytime office hours, and typical commercial HVAC and lighting loads.

System layout — rooftop arrays at SANTA ROSA
System layout — rooftop arrays

Projected savings.

Year 1

$82,700

Lifetime (~30 yr)

$6,167,000

By the numbers.

2.0

Years to payback

$14.6M

Total benefits (lifetime)

$8.5M

Property value gain

$392,201

Tax incentives captured

Levelized cost of electricity

$0.03 / kWh · SolarPorts
vs.
$1.16 / kWh · PG&E

Like most SANTA ROSA 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 $0.03/kWh from SolarPorts.

SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 93.8 kW solar system for on-site generation delivered as a rooftop array on the building.

The system now produces roughly 177,668 AC kWh of clean energy each year, an estimated $82,700 in year-one utility offsets, and around $6,167,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.

System spec

System design

Site
3550 ROUND BARN BLVD
SANTA ROSA, CA 95403-1796
APN
173020037000
Utility
PG&E
Seismic rating
1.2
Irradiance
2
System size
93.8 kW DC
Estimated production
177,668 AC kWh / year
Year-1 utility offset
$82,700
Lifetime savings (~30 yr)
$6,167,000
Solar panels
150 × Q.TRON XL-G2.3/BFG
Wire loss
2.0%

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