You're right that EPA doesn't affect private sector, businesses like Tesla Energy and many others will still continue to innovate in the renewable energy sector, but the government has definitely cut back on previously held legislative energy based regulations. For example Trump recently issued an executive order to allow offshore oil/gas mining on the Outer Continental Shelf. This promotes oil/gas industry in the US. When the market % of renewable energy companies exceeds oil/gas market % then you'll see a true revolution in renewable energy, but it's going to be a slow road like I said, definitely not over night will take years.