[1/2] A general view of electric lines as demand for power surges during a period of hot weather in Houston, Texas, U.S. June 27, 2023. REUTERS/Callaghan O’Hare
July 27 (Reuters) - PJM Interconnection, the biggest U.S. electric grid operator, issued a level one emergency alert for Thursday as people crank up air conditioners to stave off the heat wave.
The operator issued an…