The interconnect out of Texas is a big deal. Texas has some of the most ideal land for solar and wind development, but the isolation of their grid has always been a problem.
https://comptroller.texas.gov/economy/economic-data/energy/2...
https://seia.org/state-solar-policy/texas-solar/
https://www.utilitydive.com/news/ercot-solar-generation-texa...
(The close followers suggest it can't be too much a matter of state-level regulatory environment: New York is at 23% growth to Texas's 25%.)
[1]: https://www.climatecentral.org/climate-matters/a-decade-of-u...