What kind of tax-breaks and subsidies do they get?
Besides that though, our corrupt, cronyist-woke leaders always choose the top-down approach, vs. the individual, ground-up approach. Solar may be an excellent choice for your home, especially if you are far from a connection, prone to black-outs, etc... In this regard, by promoting grid-level development, they have it exactly upside down - and will cause unnecessary costs and trouble because of it.
Its the typical leftist debate over any human good - transport, medical care, education, energy.
They promote the collectivist, power-grabbing top-down approach over the more efficient and logical individual, bottom-up choice
These are wealthy people that did it more as a luxury. Their goal was to not have to worry about whatever the government decides to do with power use rules etc. The wanted to be entirely self powered. Big properties in rural areas.
These are very conservative people.