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Renewable energy technologies for federal facilities: Geothermal heat pump

Description: This sheet summarizes information on geothermal heat pumps (GHPs), which extracts heat from the ground in the winter and transfers heat to the ground in the summer. More than 200,000 GHPs are operating in US; they can reduce energy consumption and related emissions by 23 to 44% compared to air-source heat pumps. Opportunities for use of GHPs, requirements, and cost are described. Important terms are defined.
Date: May 1, 1996
Item Type: Refine your search to only Report
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Renewable energy technologies for federal facilities: Solar ventilation preheating

Description: The sun`s energy can be used to warm outside fresh air before it enters a building`s ventilation system; the outside air is warmed as it flows through tiny holes in a dark-colored, south-facing wall, and additional heating is supplied by the building`s heating system. The systems have efficiencies on the order of 75% and have other advantages as well. Opportunities for their application, requirements, and cost are described in this information sheet. Important terms are defined.
Date: May 1, 1996
Item Type: Refine your search to only Report
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