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475 E STRAWBERRY DR
MILL VALLEY, CA

475 E Strawberry Dr is home to The Club at Harbor Point, a private waterfront tennis, swim, and fitness club on a ~5.6-acre site with a ~7,000 sq ft two-story clubhouse/fitness building, heated pool, seven tennis courts, and an on-site bar and grill. The facility operates long daily hours with significant HVAC, pool heating, and lighting loads.

System layout — solar carports at MILL VALLEY
System layout — solar carports

Projected savings.

Year 1

$62,000

Lifetime (~30 yr)

$9,277,000

By the numbers.

3.1

Years to payback

$27.2M

Total benefits (lifetime)

$17.9M

Property value gain

$418,212

Tax incentives captured

Levelized cost of electricity

$0.05 / kWh · SolarPorts
vs.
$2.41 / kWh · PG&E

Like most MILL VALLEY 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 $2.41/kWh from PG&E, reduced to $0.05/kWh from SolarPorts.

SolarPorts evaluated their interval power usage (every 15 minutes) and proposed a right-sized 75.0 kW solar system for on-site generation delivered as 4 SolarPort carport structures above the parking lot.

The system now produces roughly 128,552 AC kWh of clean energy each year, an estimated $62,000 in year-one utility offsets, and around $9,277,000 in net lifetime savings — turning a recurring operating-cost into a long-term, predictable energy hedge.

System spec

System design

Site
475 E STRAWBERRY DR
MILL VALLEY, CA 94941-3262
APN
043-301-09
Utility
PG&E
Seismic rating
1.2
Irradiance
2
System size
75.0 kW DC
Estimated production
128,552 AC kWh / year
Year-1 utility offset
$62,000
Lifetime savings (~30 yr)
$9,277,000
Solar panels
150 × SIL-500 HM
SolarPort structures
4
Wire loss
2.0%

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