San Francisco Chronicle: California's 3-year-old effort to improve the energy efficiency of 100,000 homes has fallen far short of its initial goals, upgrading about 12,200 so far, state data show.
Originally funded through President Obama's stimulus package, Energy Upgrade California offers rebates worth up to $4,500 for homeowners who swap out their old furnaces and duct work, install insulation, seal leaky window frames or take other steps to make their houses more efficient.
The program burned through at least $146...