Our Green Home is Starting to Take Shape

We are building a green home in Bloomington, Indiana.  Our plan is to build it over the next year, with plans for completion in late 2009.    Here is the latest rendering.  The house was designed by Conservation Technology International.   The house is a high-performance, super-insulated version of the German Passivhaus, dubbed a "One Watt House" by Marko Spiegel, principal of CTI, because it will take only about one watt per square foot of house to heat it on the coldest day of the year.  It also incorporates a heat chimney, which will draw air up and out of the house on hot days, allowing the house to cool itself naturally.