In our experience smart homes use lots of electricity. Perhaps this is a model to at least reduce electricity costs and their associated impacts on the environment...
"According to Professional Builder, the first zero energy home costing less than $200,000 has been built in Oklahoma. This house produces as much energy as it consumes in a year and combines "renewable energy technologies with advanced energy-efficient construction." This environmentally friendly house is just a prototype and not available for sale. But as it has created lots of interest, I would not be surprised if its builder decided to add it to its catalog. Read more...