The Electric Reliability Council of Texas said power supply was low due to many forced generation outages and record June demand.
Texas power grid asks users to conserve during blistering heat wave
The electric power grid manager for most of Texas is asking users to scale back their energy consumption to avoid an emergency. It's the second conservation alert the grid operator has issued since a deadly February snowstorm. Here's a look at how extreme heat is impacting Texas and other western states.