Best Home Energy Efficiency Improvements

PV panels and wind turbines might have a lot of sex appeal, but they can also be pricy. If you're on a limited budget, here are some recommendations for affordable home energy efficiency upgrades that will pay for themselves in short order.

home energy efficiency - retrofitted home
Energy upgrades to Jefren Olson’s home in Madison, Wis., have made it much more efficient to heat and cool. Some of his recent home improvements include adding insulation and replacing the windows.
KATHY RASMUSSEN