While previously the purview of a very niche (and often expensive) housing market, net-zero homes are quickly becoming both an economically sound and sustainable proposal. The average price of an installed solar-power systems has declined more than 50% since 2010 and in 42 out of 50 of America’s largest cities, fully-financed, typically-sized solar system costs less that local utility energy. Right now, only 370 homes certified as ‘net-zero energy ready’ by Department of Energy, but demand continues to rise considerably. So what will the future of net-zero living look like? Check out the infographic below to see.