A new solar photovoltaic (PV) array was added on to the Rancho Seco property owned by the Sacramento Municipal Utility District (SMUD) to celebrate the 20 year anniversary of the utility's first major solar installation. PV1 was installed and hooked into the power grid to provide one megawatt (MW) of renewable energy to the Sacramento system. PV6, the anniversary installation, increased the field array capacity to 3.2 MW, enough to power more than 2,200 single-family homes. UniSolar manufactured the modules that went into the panels for PV6. The 3,700 modules purchased were priced at $6 a watt, and fitted into approximately 412 tracking panels that follow the sun across the sky to help gather the maximum amount of solar energy.

"PV1 was one of the first solar arrays in the world."