Superinsulation and Low E windows are two green elements that together have a big impact on home operating costs and a very short payback period. Although fuel and materials costs are in constant flux and every home building situation is different, the following is an example of the operating cost savings that might result from including these elements in your project:

3000 Square Foot Home Example
Pre-renovation Annual Heating & Cooling Cost	$4000
With Superinsulation: Possible Annual Heating and Cooling Cost Savings*	$1600
With High Efficiency Windows: Possible Annual Heating and Cooling Savings**	$400
Total Annual Operating Cost Savings	$2000
Net Future Annual Heating & Cooling Cost	$2000

*about 40% lower than traditional insulation
**about 10% lower than traditional windows