The recent posting on TreeHugger about the REEP homes in town was interesting.  If you have any more links please add them.

http://www.treehugger.com/files/2010/05/teaching-an-old-building-new-tricks.php

The REEP site doesn't seem to have any information.  We had someone talk at the Building Group meetings last year about what they were thinking of doing.  Clearly they've done a lot!

I've love to see some data.  The data mentioned on TreeHugger can be confusing - upgrades to the home but then quoting "total energy" use and also quoting just heating (clearly only the gas component - not the fixed cost of gas delivery).

They mentioned that on the one home they changed the furnace, added insulation, insulated the basement and changed the lightbulbs and cut the energy use in half (I assume from aprox $2500 to $1250/yr).  My home is about $400 electricity and $500 heating per year - pretty stock '91 with a new furnace; but I would expect these older homes to use more energy for heating than that.  That's why I'd love to see real information as to what was in the home before upgrades, what was done, what the breakout of energy use was (electrical, home heating, water heating) for each of those.