Microsoft founder Bill Gates has an interview about energy, expressing severe skepticism about the areas to which the government is directing subsidies:
If you're going for cuteness, the stuff in the home is the place to go. It's really kind of cool to have solar panels on your roof. But if you're really interested in the energy problem, it's those big things in the desert....despite often-heard claims to the contrary, ethanol has nothing to do with reducing CO2; it's just a form of farm subsidy. If you're using first-class land for biofuels, then you're competing with the growing of food. And so you're actually spiking food prices by moving energy production into agriculture. For rich people, this is OK. For poor people, this is a real problem, because their food budget is an extremely high percentage of their income. As we're pushing these things, poor people are driven from having adequate food to not having adequate food...
You could have the government throw money at the most politically favored guy in the country to go build a battery factory. And there are billions of dollars that have been assigned to that waste.... I think people deeply underestimate what a huge problem this day-night issue is if you're trying to design an energy system involving solar technology that's more than just a hobby. You know, the sun shines during the day, and people turn their air conditioners on during the day, so you can catch some of that peaking load, particularly if you get enough subsidies. It's cute, you know, it's nice. But the economics are so, so far from making sense. And yet that's where subsidies are going now. We're putting 90 percent of the subsidies in deployment—this is true in Europe and the United States—not in R&D. And so unfortunately you get technologies that, no matter how much of them you buy, there's no path to being economical.