Alamo Solar is located in San Bernardino County near Helendale, Calif. It has secured a 20-year power purchase agreement (PPA) and an interconnection agreement.
"Dominion is delighted to continue developing solar energy," said David A. Christian, Dominion Generation's chief executive officer. "Solar power provides important fuel diversity in our fleet's electric generation mix."
Alamo Solar is expected to qualify for the federal Investment Tax Credit.
Dominion's total contracted solar generating portfolio consists of 384 megawatts in operation or under development in California, Connecticut, Georgia, Indiana, Tennessee and Utah. The acquisition of Alamo brings Dominion's solar portfolio in California to 241 megawatts.
The company also plans to develop 400 megawatts of utility solar generation in Virginia by 2020.