Griddy is saying the price hike was artificial. I am not sure if it makes sense or if it's misleading.
https://www.griddy.com/post/griddy-update-why-energy-prices-...
https://www.griddy.com/post/griddy-update-why-energy-prices-...
http://www.puc.texas.gov/51617WinterERCOTOrder.pdf
Retail customers weren't expected to be directly affected by wholesale pricing of energy, but when a provider passes through the wholesale price directly that goes out the window.