"Every fifteen minutes the sun delivers to earth enough radiant energy to meet all of mankind's needs for a full year. Today, a variety of solar energy technologies are being developed to meet the long term energy needs of our planet - from solar electric power plants to solar home heating and hot water systems, and projects to convert crops to natural gas. This program surveys these projects, traveling from the American southwest to Israel's Dead Sea, to profile the converting of sunlight into usable energy." - Summary from the teaching guide.

Part of the "Science Screen Report" series - Vol. 16, Iss. 5.