Energy From the Sun Second Edition, Encyclopaedia Britannica Films, 1980

“Presents an easy-to-understand introduction to the new and complex field of solar energy technology. Emphasizes the potential importance of solar energy in an age of dwindling fossil fuel supplies. Visits several sites in the United States where both solar energy research and use are in progresss. Explains some of the systems now being used in which sunlight is used to heat water, irrigate farms, and generate electricity. Compares the efficiency of two types of solar cells. Indicates some of the problems that must be solved before solar energy can be practical and economically competitive”