Future energy needs can determine the potential of solar energy applications. There are large-scale applications for energy production from wind, ocean thermal temperature differences, solar thermal power plants, and photovoltaic energy conversion. Near-term approaches, including house heating and cooling, have great potential for conserving energy. Solar heating and cooling costs will vary in different regions of the United States. Specific programs have been designed to introduce solar house heating and cooling on a substantial scale. New architectural approaches to incorporating solar heating and cooling systems have been determined.

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