This document was published by the Federal Energy Management Program of the US Department of Energy. It focuses on how federal buildings can meet their renewable energy targets laid out by federal law with cost effective solar thermal water heating systems, included new plastic low cost systems.
As laid out by the Energy Independence and Security Act of 2007 (EISA), and further expanded in 2009, federal buildings need to have solar energy provide 30% of their hot water consumption. The brochure compares 2 plastic solar thermal systems to the usual glass and metal systems. They find that the reduced systems costs makes up for any loss of efficiency over the life of the system, increasing the return on investment.
Author: Federal Energy Management Program of the US Department of Energy
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