Some consumer energy tax breaks expired last year, like the ones for new windows and insulation. But those will back next year, so don't buy that stuff now. The breaks for buying the most popular hybrid cars like the Toyota Prius and Ford Escort have all but vanished. But next year there will be new tax credits for certain new plug-in hybrid vehicles. For this year, you can still take a tax credit of up to $2,000 if you install in your home a solar-powered hot-water system or solar panels that produce electricity. Green breaks are a jumble. You can sort them out at dsire.org.