The especially hot Texas weather has consistently stressed the power grid last summer.The Electricity Reliability Council of Texas (ERCOT) has set 10 new all-time peak demand records this summer. ERCOT set an all-time peak demand record of 85,464 MW Aug. 10.The organization has relied more on renewable energy this summer than it has ever had to, specifically solar and wind energy. While solar energy is helpful because it is the most effective when the sun is the hottest, it can be unpredictable.When the sun lowers, solar energy’s contribution to the generating capacity dips, which explains why the grid has been ...