Aug. 10 — Even before summer’s hottest months, utility providers in California warned they might cut power on windy days to prevent wildfires caused by falling power lines. In Texas, utilities said they would urge consumersto conserve electricity to avoid the need for rolling blackouts when record heat leads to record electricity usage that can overwhelm the system. Despite having one of the most reliable electricity systems in the country, much of midtown Manhattan and parts of the Upper West Side were plunged into darkness last month, 42 years to the day of the New York City blackout of 1977.

— The Hill