During an extreme heat wave in early September, the California power grid relied on natural gas for almost half of its electricity generation to meet peak demand, the U.S. Energy Information Administration (EIA) said on Wednesday. For brief periods during the week of Sept. 4, natural gas accounted for up to 60% of the California Independent System Operator (CAISO) fuel mix, compared with 32% for the year prior to the record-setting demand week, the EIA said. CAISO typically relies on natural gas, hydroelectric power, and electricity imports to meet peak demand, the EIA said, adding that […]