China is investing in solar in a big way, which is great news for the rest of us. China is a nation of 1.36 billion souls, so even though it has only just passed Germany (population 81.6 million) in terms of installed solar capacity, it’s easily on track to leave it in the dust. According to Reuters, even while missing its own target, China now has 43 gigawatts of solar energy, against Germany’s 40 gigawatts.…