Geothermal Energy


   

 

 

Geothermal Energy Systems rely on the earth’s constant temperature to heat and cool many types of buildings year round. Geothermal Energy (from the Greek roots: Geo = Earth and Thermos = Heat) is Energy extracted from heat stored in the Earth. The Earth's core is over 4000C. The inner heat constantly radiates outward from the core, and heat from the sun radiates inward from the Earth's surface.

We specialize in 2 different methods of extracting the geothermal energy from the earth:

Closed Loop
Multiple boreholes are drilled and pipes are installed in a u-shape.  A water solution is then passed through the pipes and returned to the building.

In the winter warmth is extracted from the earth through a series of pipes (called geothermal loops) that are installed inside of the drilled boreholes.  A water solution is then passes through the loops that carry the warmth of the earth to a heat pump that is located inside of the building.  The heat pump then concentrates the earth’s energy and transfers it to the air that is circulated inside the building via ductwork.

In the summer the process is reversed.  The warmth of the air inside the building is extracted and transferred to the earth through the series of loops installed in the drilled boreholes.

 Open Loop:
Open loop systems are the less expensive alternative and are generally used for residential projects.

In an open loop system 2 water wells are drilled – one is a supply well and the other is a return well – to be used with your ground source heat pump. The process is similar to the closed loop system.  The water is pumped from the supply well into the ground source heat pump where the heat is extracted and sent throughout the home via ductwork.  The water then returns to the ground in the return well.  In the summer the reverse happens.   

Ground source heat pumps (GSHPs) are electrically powered systems that tap the stored energy of the greatest solar collector in existence: the earth. These systems use the earth’s relatively constant temperature to provide heating, cooling, and hot water for homes and commercial buildings.  

The GSHP is one of the most efficient residential heating and cooling systems available today, with heating efficiencies 50 to 70% higher than other heating systems and cooling efficiencies 20 to 40% higher than available air conditioners. That directly translates into savings for you on your utility bills.