Peak temperatures are forecast to reach 115 degrees Fahrenheit (46°C) in interior California through the week, according to the state's electric grid operator, which warned the biggest supply deficit could occur on Thursday after the sun goes down and solar power is no longer available. The ISO was currently getting 13% of its power from other states. The Electric Reliability Council of Texas (ERCOT), which operates most of the state's power system, projected electric demand would break the June record set on Monday in coming days. ERCOT said demand reached 69,943 MW on Monday and is expected to reach 70,391 MW on June 17. The state's grid is separate from the rest of the country, so it can draw only small amounts of power from other grids to offset greater-than-normal demand.
