ERCOT released their Demand and Energy Report for February 2017 today, and the results are both expected and alarming. Total generation was off about 2.6% from last Feb, likely due to weather.
My focus was on two things:
Wind power generation....capacity is up from 2016, and the capacity factor seems to be up even more (next gen windmills, better siting?). In any case, wind generation was up 19.4% over last Feb, from about 6.7 GW average, to 8 GW. The difference is even larger in March to date.
Market share of thermal output.....it was 60.9% this Feb, vs 64.4% last Feb...down on lower total load and losses to wind.
Natural gas market share of thermal output.....it was 50.7% this Feb vs 67.1% last Feb. Gas was much more expensive this year. Falling prices in March should improve this a bit, but last March, gas took a whopping 79.3% of the thermal power market.