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Subject is Energy consumption
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View Resource Do-It-Yourself Home Energy Asessments

You can easily conduct a home energy audit yourself. With a simple but diligent walk-through, you can spot many problems in any type of house. When auditing your home, keep a checklist of areas you...

http://apps1.eere.energy.gov/consumer/your_home/energy_audit...
View Resource Professional Home Energy Assessments

Professional energy audits generally go into great detail. The energy auditor should do a room-by-room examination of the residence, as well as a thorough examination of past utility bills.

http://apps1.eere.energy.gov/consumer/your_home/energy_audit...
View Resource Benefits of Geothermal Heat Pump Systems

The biggest benefit of GHPs is that they use 25%?50% less electricity than conventional heating or cooling systems. This translates into a GHP using one unit of electricity to move three units of h...

http://energy.gov/energysaver/articles/geothermal-heat-pumps
View Resource Geothermal Heat Pump Energy: How It Works!

While it may be difficult to explain the technology of extracting heat from air, water or ground, the concept is easier to comprehend once one understands the principles of heat extraction and heat...

http://geothermalheatpump.com/how-it-works
View Resource Enhanced Spatial Resolution for Calculating Grid-Connected PV Performance

PVWATTS calculates electrical energy produced by a grid-connected photovoltaic (PV) system. Researchers at the National Renewable Energy Laboratory developed PVWATTS to permit non-experts to quickly...

http://www.nrel.gov/docs/fy02osti/30941.pdf
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