Buffet owns much of the western region utilities, the rail, as well as has significant holding around natural gas equipment, etc.
Buffett is in direct competition with Tesla Energy.
He also could see a rapidly increasing dent into his rail holdings happening over the next decade due to Tesla semi and other electric trucks platooning as well as other container advantages by going electric.
He got involved in attacking roof top solar in Nevada, of which he had a mutual common interest with the Kochs, who have also attacked roof top solar in many places around the country, just look at the history in Arizona for example.
I get that he is a legendary investor to many, but never forget that he doesn’t want anyone messing with his moats. He plays dirty behind the camera and the jolly persona. He isn’t a fan of competition in these areas and he literally says this every time he talks about moats and barriers to entry as good things.
Elon is about winning through innovation. Buffet is about winning by monopolization and regulating out completion.
He loves Tesla creating demand for electricity on his centralized grid... he just doesn’t like having electricity being produced and stored by distributed energy sources such as you and your roof. He surely doesn’t like the possibility of superchargers becoming self sufficient in charging the Tesla fleet either.
Ask the Vegas casinos about their attempts to leave NV Energy to either utiltize their own roof top solar or shop around for better rates...