(CNSNews.com) - The Energy Department on Tuesday is rolling out new, improved software to help Americans measure the energy efficiency of their homes. DOE says its energy-scoring software -- called the Home Energy Scoring Tool -- is like a vehicle's mile-per-gallon rating because it allows homeowners to compare the energy performance of their homes to other homes nationwide. It also provides homeowners with suggestions for improving their homes' efficiency. The software is part of the government's effort to reduce the nation's energy consumption; but it's also billed as a way to keep home-retrofitting going, at a time when stimulus funds...