If the government's reason for forcing miners to use only solar energy is because of green energy then I think that's wrong. Because we can see that there are so many green energy sources and even renewable energy sources that can be used for Bitcoin mining. So I think this is impossible to happen as there are still many natural resources that can be used as energy sources and I even see the hydropower is already being used in the automotive world. This means that Bitcoin mining can be done using hydropower. And I think the world has begun to switch to using electrical energy that can be obtained from various energy sources. But I personally prefer the use of volcanic geothermal energy, where it was ever used by El Salvador for Bitcoin mining because it seems to make good use of existing natural energy sources. So I think there is no reason for the government to force Bitcoin miners to only use solar energy for mining.