Existing energy businesses—oil companies, utilities—are obviously hostile to government-sponsored competition. At the same time, they are essentially commodity businesses, without a lot of fat in them. The stock market does not reward even big oil companies for research and development that will take decades to pay off. And the sort of research that might lead to huge changes in energy production often doesn’t pay off for decades. Plus it requires a lot of expensive science: discovering a new kind of battery or a new way of capturing solar energy is not like creating a new app.