When you do anything like this to a home you get a tax credit and a rebate from the utility companies and a bit from the state and federal government. It usually funds 10% up to 70% depending on the scenario. All of the companies that sell and install these systems also give very low interest credit so you pay them instead of utility bills. The money you save in utilities after the first few years more than pays for the entire system.

The real problem is that the Federal Government has spent over $3,000,000,000,000.00 (three trillion) in Iraq and billions more in Afghanistan not to mention the tens of trillions spent on defense and space exploration. On top of all of that there are hundreds of trillions spent purchasing oil/gasoline and hundreds of trillions more spend exploring and drilling for it.

On top of that trillions are spent on purchasing, mining and processing copper, aluminum and coal for power plants and hundreds of thousands of miles of power lines and building power plants.

If just a small percent of these hundreds of trillions of dollars was spent developing homes like this thru Federal and State Government grants and another small percentage was spent giving larger Federal and State rebates and tax credits for folks who covert their existing homes then we would not need to go to war for oil and not need to explore and drill for oil, copper, aluminum and coal so much.