A recently received photo from the Owner shows the XHouse1 resting happily in the wintery scene in Indiana. The Owner is thrilled with the energy performance of the house with 100-150$/month in power for this 2400sqft home. We know much better is possible, but its not bad, half of what my old house consumes. However this performance is admirable for a single wythe wall system - the Owner used the USA New Wall "Good" system and fully insulated the house with stone wool. More evidence that strides in better performance can be made without great effort or cost. See all the pictures of the house in its Flickr album.