Low Energy Dream House ( Solar Thermal Magazine ). – My wife and I are considering selling our home and building a smaller house set up for two people that makes efficient use of space and uses as little energy as possible. Since I make my living as an industrial energy efficiency and renewable energy expert this should be right up my alley right? It also sounds like a lot of fun designing our perfect new place that we will enjoy for many years to come. We started looking for designs off the internet for net zero or super-insulated homes which got us thinking about what we wanted to do.