This report was prepared by the US Environmental Protection Agency and explains the concept and benefit of using “active” and “passive” solar systems. The document describes the basics of both active and passive systems and provides advice on integrating solar systems to work in conjunction with conventional water heaters. Some of the benefits of using a solar water heating system listed in the report are; Solar water heating systems offer a lower operating cost than of a conventional water heater and renewable energy offers the most direct environmental benefit.
Author – US Environmental Protection Agency
Date – September 2001
Pages – 2
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