Summer is two months away, yet the Texas power grid is already swooning. On Friday the Electric Reliability Council of Texas (Ercot) asked power generators to postpone scheduled maintenance early this week “to help alleviate potential tight conditions” as temperatures rise into the not-so-sizzling 80s.

The grid typically has excess power-generating capacity in the spring owing to mild weather. There’s also an abundance of solar and wind power. This is why plants go off-line for repairs in the spring to prepare for the summer when electricity use surges as people ramp up the air conditioning