http://vis.openenergymonitor.org/retrofit/
http://github.com/openenergymonitor/retrofit
Description
Retrofit is a tool to explore the effect of different retrofit measures. Starting with a basic model of a house, its possible to explore the implications of adding a given thickness of insulation and improving draught proofing, including predicted energy demand and financial payback.
The next step is to integrate this tool into the larger community energy plan maker application that we have been developing as part of the openenergymonitor.org project.