Texas is bracing for a brutally hot summer and a record-breaking demand for energy. After the winter storm in February left millions without power for days, there’s a new report warning Texas is at an “elevated risk” of energy emergencies this summer. The new report comes from the North American Electric Reliability Corporation, or NERC... The report outlines two main concerns about the Texas power grid for this summer. Electricity reserve margins have gone down, so generation may not be able to keep up with growth in demand. The second concern is we rely heavily on wind and solar power...