26 Sep '11, 2am

DOE Study on Hybrid GHP Systems: Hybrid GSHPs demonstrated a reduction in "first cost"

Hybrid GSHPs demonstrated a reduction in "first cost" while providing same efficiency benefits. Before you dismiss geothermal, consider going hybrid... Department of Energy funded study examines hybrid ground-source heat pumps Install a hybrid geothermal heat pump system and reduce the cost of implementing geothermal heating and cooling on your building project. A hybrid system reduces the peak capacity of your ground loop, letting you install a smaller, less expensive ground heat exchanger. The Energy Center of Wisconsin with assistance from the University of Wisconsin Solar Energy Laboratory collected a year of operating data on three working hybrid system installations to analyze the economic and environmental impact of the hybrid approach and to compare it to other HVAC system designs. This data was used to investigate what contributes to an effective hybrid design and...

Full article: http://www.geoexchange.org/index.php?option=com_content&v...

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Estimating Geothermal Cost and Payback - Daily ...

thedailygreen.com 26 Sep '11, 1pm

Geothermal HVAC by Jay Egg and Brian Clark Howard. related articles By Brian Clark Howard With a geothermal heat pump, you...

Estimating Geothermal Cost and Payback

thedailygreen.com 26 Sep '11, 1pm

Geothermal HVAC by Jay Egg and Brian Clark Howard. related articles By Brian Clark Howard With a geothermal heat pump, you...

Installed Cost of Solar PV Systems in the U.S. ...

renewableenergyworld.com 23 Sep '11, 5pm

The reductions reflect the drop in both the cost of PV modules as well as non-module costs such as installation labor, mar...

Installed Cost of Solar PV Systems in the U.S. ...

renewableenergyworld.com 23 Sep '11, 2pm

The reductions reflect the drop in both the cost of PV modules as well as non-module costs such as installation labor, mar...

airtightness wall systems #green

greenbuildingadvisor.com 25 Sep '11, 1pm

Can anyone produce a list comparing the average airtightness of the most popular wall systems?, tyvek and fiberglass, airt...

#Energy

homeenergy.org 04 Oct '11, 3pm

Working at Home Energy would seem to have prepared me for having an energy efficiency retrofit done on my own home, at lea...

Alarming New Study Documents BP Oil’s Impact on...

nwf.org 26 Sep '11, 7pm

“This study is alarming because similar health effects seen in fish, sea otters, and harlequin ducks following the Exxon V...