Energy Efficiency Ratings

[Geoff S.]

Throwing a question out to the BP RE  Community.

Is anyone using energy effiency ratings, such as HERS (Home Energy Rating System) as a way to increase monetary  value for energy efficient homes? Either for purposes of leveraging for higher home loan amounts or for resale 

I'd like to start a discussion about what seems to be a missing opportunity here but don't know in what sector (banking, realtors, appraising, inspecting) it needs to occur.

Any thoughts?