Considering the high cost of fuel I was reading everything I could on solar power. My husband patiently listened to all I recounted about Solar Greenhouses. Green houses survive on solar energy. These special greenhouses collect it during hours of sunlight as well as store it during night or cloudy days. These can be set up independently or may be attached to the house or barns. They may also be an underground pit – a sort of shed or prefabricated portable Quonset-Hut. Under extreme climatic conditions the solar heating may have to be supplemented with other forms of gas or electric energy, but generally the sun does all the work. I have never thought of myself as a gardener, but now I am hooked on growing stuff in my greenhouse.