The passive-house building standard relies on lots of insulation and intentional design to use as little energy as possible for heating and cooling. If your home is super energy efficient and it has ...

Passive solar — a building approach that uses the sun's energy for heating, cooling, and lighting without mechanical equipment — helps keep homes comfy year-round. When Doug Butler and Jamie Jarboe ...

A Shelby County couple built a custom home using passive solar design principles. The home's orientation and an "air floor" help it absorb and store the sun's heat. This design allows the house to ...