Wall Street Journal: Investment in renewable energy has hit a lull as private-sector money is drying up, but the bulk of government funding has yet to arrive. There was $13.3 billion in new investments in clean energy — the term used to describe alternative energy such as wind farms, solar power and biofuels facilities — in the first three months of 2009, down 53%, from a year earlier, according to a report Thursday from research firm New Energy Finance Ltd. The drop came mostly in bank-based financing …