A hybrid car is a car which can run on two or more fuel sources. The term most commonly refers to Hybrid Electric Vehicles (HEVs), which combine an internal combustion engine and one or more electric motors.
Leave a Comment April 27, 2010
The air that leaks in around doors, windows, and electrical outlets, etc. which can be a major source of heat loss.
1 Comment January 28, 2010
Devices that shut off lights automatically when rooms are unoccupied.
Leave a Comment January 12, 2010
Leave a Comment December 21, 2009
A system using mechanical devices such as pumps, fans etc., that transfers collected heat to the storage medium and/or the end-use.
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Small rotary engines (usually fueled by natural gas) that provide on-site electricity generation.
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Letting natural light into a space through glazing with the intent of reducing or eliminating electric lighting, and thereby the energy consumption of a building.
1 Comment November 19, 2009
A cleaner-burning diesel fuel made from natural, renewable sources such as vegetable oils.
Biodiesel is meant to be used in standard diesel engines and is thus distinct from the vegetable oils used to fuel converted diesel engines. Biodiesel can be used alone, or blended with petrodiesel.
Leave a Comment November 15, 2009
A measure of thermal resistance used in the building and construction industry.
The bigger the number, the better the building insulation’s effectiveness.
Leave a Comment November 11, 2009
