Comment Re: Too bad... (Score 1) 25
This in spades. I'm on the TX grid and have watched ERCOT's site pretty regularly since around 2011, when it also failed. Generally ERCOT keeps readily available supply of between 5-12GW, or 10-20% margin of a typical statewide usage 50-80GW. Current use is right at 50GW with 16GW of spare, so higher spare than typical. Although not atypical when wind/solar is running above average like today. This also tends to push spot prices down, and they are, around 2USD/MWh.
The batteries they've put in which currently shows as 17GW help with keeping ready supply without spinning rust. I think that the 17GW is really 17GWh and they can throw or consume around 6-7GW. I've never seen ERCOT say what the battery number represents, raw power available or GWh. As I write this, batteries are charging at 1.4GW(-2.7%), solar is up to 15GW(30%), wind is good at 20GW(40%).