Friday, June 27, 2008

Renewable Energy from the Pond

Geothermal energy from the pond
will be used to heat and cool the house

Aided by a week of near-perfect weather, the prefab Tidewater Cottage is quickly taking shape. As you can see from the photo, it's becoming easy to imagine the finished house nestled among the trees above the pond.

Although the pondside location is idyllic indeed, the decision to site the house there was more than just an aesthetic one. The pond will be used for a geothermal heating and cooling system that will save on energy costs and reduce pollution compared to a traditional HVAC system.

Eight feet below the surface of the pond the temperature remains a steady 55 degrees year round. The geothermal system will pump water through a system of looped coils on the pond bottom to extract heat energy to be sent to the house to provide heating in winter and cooling in summer. The system is being supplied by Mark Campbell of Renewable Energy Solutions in Rixeyville, Virginia.

Of course, it's still a lovely place to put the house.