From the left wing Wall Street Journal.
https://thehill.com/homenews/state-watch/540271-texass-deregulated-electricity-market-raised-cost-to-consumers-by-28
Back around 2010 I worked up some comparisons using the EIA price data cited in the article for a state on the east coast. Same story. Residential and small commercial customers in states that had adopted Generation industry restructuring (sometimes called deregulation) paid higher prices for electricity than in states that had not restructured generation.
Deregulation never made a lot of sense for residential and small commercial customers. It did for large industrial because they had negotiating leverage, and because they traditionally subsidized residential at least in the 1960s and 70s. State regulators liked it that way back in the day.
Edited by Knucklehead at 12:18:42 on 02/24/21