The board of directors of Arizona’s second-largest public utility has approved a nearly $1 billion plan to expand the natural gas-fired Coolidge Generating Station, adding 820 MW of generation capacity. The Coolidge station at present is a 575-MW power plant with 12 single-cycle gas turbines; the plant began operating in 2011. The expansion plan approved … Continue reading SRP Approves Arizona Expansion with 16 Gas-Fired Turbines