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990 5TH AVE
SAN RAFAEL, CA

990 5th Ave is a two-story Class A office building (~5,199 SF leasable) at the corner of Fifth Avenue and Court Street in downtown San Rafael. The building hosts professional services tenants with standard office HVAC and lighting loads typical of multi-tenant downtown office use.

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

Projected savings.

Year 1

$125,900

Lifetime (~30 yr)

$9,392,000

By the numbers.

3.0

Years to payback

$22.3M

Total benefits (lifetime)

$12.9M

Property value gain

$816,338

Tax incentives captured

Levelized cost of energy

$0.04 / kWh · SolarPorts
vs.
$1.16 / kWh · PG&E

Like most SAN RAFAEL 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 $0.04/kWh from SolarPorts.

SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 144 kW solar system for on-site generation delivered as 7 SolarPort carport structures above the parking lot.

The system now produces roughly 270,951 AC kWh of clean energy each year, an estimated $125,900 in year-one utility offsets, and around $9,392,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.

System spec

System design

Site
990 5TH AVE
SAN RAFAEL, CA 94901-6105
APN
011-221-13
Utility
PG&E
Seismic rating
1.2
Irradiance
2
System size
144.0 kW DC
Estimated production
270,951 AC kWh / year
Year-1 utility offset
$125,900
Lifetime savings (~30 yr)
$9,392,000
Solar panels
240 × TSM-NEG19RC.20
SolarPort structures
7
Wire loss
2.0%

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