Most buildings today use a lot of energy - to keep the lights on, cool the air, heat water, and power personal devices. Even installing solar systems will not significantly counter the heavy energy load. There are, however, some buildings that strike a balance, or even tip the scales the other way! These are called zero energy buildings. They manage this feat by being extremely energy efficient - saving 5096 - 7096 more energy than typical buildings! In these ultra-high performance buildings, the amount of energy used can be completely offset by renewable energy produced on or around the building. When conditions are not suitable for energy generation, the building will draw energy from the electrical grid to meet its needs. When conditions improve, the onsite renewable energy systems will cover the building's energy need and send excess energy back into the grid to make up the balance. Over the course of a year, the building gives back as much energy as it takes. When zero energy concepts are applied to groups of buildings, the benefits are shared and multiplied within that zero energy community.