Tenaska Imperial
Solar Energy Center South
Imperial County, California


Photovoltaic (PV) technology will be utilized. Photovoltaics is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors. Photovoltaic power generation employs an array of solar panels that do not produce noise or emit any greenhouse gases. First Solar will provide the technology.

Key Facts

Electric Capacity (approximately)
130 megawatts (MW) of renewable power, enough electricity to meet the needs of approximately 44,000 California homes.
The South project site is approximately 946 acres of agricultural, non government land in Imperial County, adjacent to the U.S. border with Mexico.
Imperial County approved the project in 2011. Construction began in late 2011. Completion is expected in the second half of 2013.
Economic Impact
This project would boost the local economy over the construction period and provide as many as 300 new jobs at peak construction. This activity will generate still more jobs in the region.
Minimal Water Use
Photovoltaic technology converts sunlight directly into electricity and therefore has minimal water supply requirements, an important consideration for the Imperial Valley. Water use will be primarily for cleaning the panels and dust mitigation.
Transmission Interconnection
The project will connect with the California Independent System Operator (CAISO) at the existing Imperial Valley electric transmission substation located on BLM land in the Yuha Desert. Needed transmission lines are planned to be located within a BLM land tract currently used for high voltage electricity transmission.
Project Developer/Owner
Tenaska Solar Ventures, an affiliate of Tenaska, is developing the project. CSOLAR IV South, LLC, a Tenaska affiliate, is owner of the project.


This map shows the locations of
Tenaska Imperial Solar Energy Center South
and West,
and Tenaska Silverleaf Solar Energy Center

Projects Page

Project Links

Project Q & A

Fact Sheet