Worcester Telegram and Gazette: After more than 30 years of on-again, off-again growth, one industry in Central Massachusetts, the home energy efficiency business, is booming even as the recession deepens. A surge in funding from conservation fees on utility bills, revenues from the new system for state auctions of carbon pollution credits, and now an anticipated massive infusion of weatherization and energy efficiency funds from the pending federal stimulus package are all driving the trend. In the last …