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Fourth Street Apartments

Renewable energy solutions and green construction methods are typically not associated with affordable housing, but in fact, the pairing makes sense. The newly-constructed Fourth Street Apartments offer 100 low-rent housing units to families in the San Jose area making 60% or less of the area median income. Features like the solar PV system and energy-efficient windows reduce the building’s electricity costs, allowing monies saved to be used for resident services.

Fourth Street residents enjoy comfortable, affordable housing, a complimentary transit pass for the light rail train just two blocks from the building, special needs services, an on-site laundry facility, and a state-of-the-art solar energy system that provides shade to a rooftop balcony. More information can be found at the Fourth Street Apartments website.

The Fourth Street Apartments’ 30.5 kW solar energy system is divided into two solar arrays. One utilizes a traditional flat roof mounting method with angled racking; the other is mounted as a free-standing trellis that will host shade and climbing plants as part of the building’s rooftop garden.
Size30.5 kW
Production44,100 kWh/year
PV modulesSunpower 320W (63 modules)
Kyocera 235W (44 modules)
MountingRoof, trellis
LocationSan Jose, CA
Online since2012
System Offsets*AnnualLifetime
Pounds of CO267,0411,676,025
Miles driven70,3201,758,000
Trees planted78019,500


*Calculations based on EPA Greenhouse Gas Equivalency Calculator. System lifetime is assumed to be 25 years.