What does a One-Watt-House cost compared to the average building?
The incremental, added cost for a One-Watt-House ranges from 10% to 20%. More money is spent on super windows and insulation, but less is spent on mechanical equipment. Even at this price difference, One-Watt-Houses are the most economical building type when considering the total cost of ownership during the life of a building. If the energy cost increases faster than the cost of capital, as it has over the last few years, the amortization of extra investments in efficiency will be further accelerated. One-Watt-Houses are not just better houses, good for the environment they are also good investments considering our uncertain energy future.
