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Why Renewable Energy?

Sustainability is defined as "the ability to meet the needs of the present without compromising the ability for future generations to meet their own needs." Renewable energy is means to achieving sustainability.

Earth Energy systems (also known as GeoExchange, geothermal systems, or ground source heat pumps) make use of the renewable solar energy that's stored in the ground or in large bodies of water. Heat can be stored in the earth when it isn’t being used in a building and drawn from the earth when the building requires heat. Earth buried loops transfer heat from fluid circulating in pipes. Heat is transferred to the earth if the fluid is warmer than the earth and removed from the earth if the fluid is colder than the earth. The systems have been used around the world for over 50 years.

Earth Energy based Space Heating and Cooling systems offer a larger mitigating effect on greenhouse gas emissions and resulting global warming than any other currently available fossil energy based technology!

Renewable Energy Systems Benefits

• Potentially reduced initial capital cost,
• Reduced space needed to house the equipment, or structure needed to support it,
• Reduced operating, maintenance and life cycle costs,
• Reduced peak electrical demand,
• Reduced, or voided, natural gas consumption,
• Reduced greenhouse gas emissions,
• Environmental noise mitigation,
• Additional Leadership in Energy and Environmental Design (LEED) Credits,
• Energy efficiency rebates.

Why Cogeneration - Combined Heat ad Power (CHP)?

Combined Heat and Power or CHP, also called cogeneration or distributed generation, is the simultaneous production of two types of energy – heat and electricity – from one fuel source, often natural gas. The ability to create two forms of energy from a single source offers tremendous efficiency and thus both cost savings and environmental benefits.

The key components of a combined heat and power system are an internal combustion, reciprocating engine driving an electric generator. The clean natural gas fired engine spins a generator to produce electricity. The natural byproduct of the working engine is heat. The heat is captured and used to supply space heating, heating domestic hot water, laundry hot water or to provide heat for swimming pools and spas. The CHP process is very similar to an automobile, where the engine provides the power to rotate the wheels and the byproduct heat is used to keep the passengers warm in the cabin during the winter months.

Combined heat and power systems use fuel very efficiently. A CHP system provides electricity and heat at a combined efficiency approaching 90%. This is a significant improvement over the combination of the 35% efficient electric utility and a conventional heating boiler with 65% seasonal efficiency.

Because of the high efficiency of the system, combined heat and power provides considerable energy, environmental and economic benefits. CHP systems reduce the demand on the utility grid, increase energy efficiency, reduce air pollution, lower greenhouse gas emissions and protect the property against power outages, while significantly lowering the utility costs of building operations.

Your property is a good candidate for a CHP system providing natural gas or propane is available on site and where average electric rate is greater than $0.10 per kWh. CHP systems are found in hospitals and long term care facilities, in large multifamily and hotel projects, and in various industrial applications, food processing, greenhouse, pulp & paper and dairy.

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