US based San Diego Gas & Electric (SDG&E) has entered into two, 25-year power purchase agreements for a total of 80MW of solar energy.

The first agreement is with subsidiaries of Sol Orchard to buy as much as 50MW of locally produced solar energy.

This agreement calls for 21 ground-mounted photovoltaic plants that will be built mainly in rural communities in San Diego County, US state of California, over the next two years.

The second agreement is with subsidiaries of renewable energy firm Soitec Solar Development, and this agreement includes three contracts with a combined capacity of 30MW of solar energy to be generated at three plant sites in San Diego County.

These projects will deploy a ground-mounted, dual-axis tracking concentrator photovoltaic power system.

The renewable energy contracts need California Public Utilities Commission approval.

SDG&E has also revised its agreement with renewable energy developer NaturEner to buy power from the company’s Rim Rock wind farm in Montana, US.

The agreement was revised after settlement talks with the Division of Ratepayer Advocates, an independent branch of the California Public Utilities Commission, and the consumer group, The Utility Reform Network.