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Currently PV systems cost between $6,000-$10,000/kW installed.

The cost of a PV system depends on the system's size, equipment options and labor costs. Prices vary depending on other factors as well, such as the PV provider, whether or not your home is new, if the PV is integrated into the roofing materials or mounted on top of the existing roof, and the PV manufacturer.

Small systems funded through California's Buy-Down Program have been averaging $7.00 / watt, after rebates.

The average factory price of PV modules is about $4/watt, excluding balance-of system (BOS) costs. BOS costs increase the factory costs by 30-100%.

Major BOS cost items include:

  • Control equipment (e.g. maximum power point trackers, inverters, battery charge controllers, etc.)
  • PV array support structures
  • PV array to field wiring
  • PV panel to array wiring
  • Disconnects
  • Panel protection diodes
  • Batter storage if present
  • Installation and fees
  • Insurance
  • Data acquisition system and sensors

-(California Energy Commission)

Where to buy?

Worldwide, the number of photovoltaic system manufacturers and project developers is growing.

Below are links to six PV companies:

  • AstroPower of Newark, Delaware produces a complete line of photovoltaic solar cells, solar modules, and complete packages for residential, commercial, and industrial DER applications.
  • Baekert ECD Solar Systems LLC and United Solar Systems Corp., based in Troy, Michigan, develop and produce the UNI-SOLAR® photovoltaic products for a wide variety of applications.
  • BP Solar, headquartered in Linthicum, Maryland, designs integrated photovoltaic systems and sells system components for a variety of DER applications.
  • DayStar Technologies, Inc. of Denver, Colorado is developing 10-50 kW photovoltaic systems based on proprietary packaging and thin-film processing.
  • Solec International, Inc., based in Carson, California, is a group of Sanyo Electric Co., Ltd. that produces photovoltaic systems with advanced crystalline silicon materials.
  • Xantrex Technology, Inc., headquartered in Vancouver, British Columbia, offers commercially available solar systems up to 20 kW for both on- and off-grid applications.

-(California Energy Commission

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"In the end, we will conserve only what we love. We only love what we understand. We only understand what we are taught."
-Babia Dioum Senegalese Ecologist

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