The Federal Energy Regulatory Commission on Nov. 5 authorized AltaGas Power Holdings (U.S.) Inc. to sell its interests in AltaGas San Joaquin Energy Inc., which owns three natural gas power plants, to SJ Power Holdings LLC. The power generated by the facilities, which have a combined capacity of 523 megawatts, is fully committed under long-term power purchase contracts with Pacific Gas and Electric Company. AltaGas San Joaquin Energy is a subsidiary of AltaGas Ltd. SJ Power is a subsidiary of Middle River Power III LLC which is controlled by two individuals. Pacific Gas and Electric is a subsidiary of PG&E Corp.