Energy Conservation - Finding and implementing ways to use less energy., Tiered Rate System - A billing system used by some electric companies in which customer pay higher rates as their use goes up., Peak Demand - The greatest quantity of energy used at any one time., Passive Solar Design - Construction designed to take advantage of solar radiation without active technology., Thermal Mass - A property of a building material that allows it to maintain heat or cold., Potentially Renewable - An energy source that can be regenerated indefinitely as long as it is not over harvested., Non-depleted - An energy source that cannot be used up., Renewable - In energy management, an energy source that is either potentially renewable or nondepletable., Biofuel - Liquid fuel created from processed of refined biomass., Modern Carbon - Carbon in biomass that was recently in the atmosphere., Fossil Carbon - Carbon in fossil fuels., Carbon Neutral - An activity that does not change atmospheric CO2 concentrations., Net Removal - The process of removing more than is replaced by growth, typically used when referring to carbon., Ethanol - Alcohol made by converting starches and sugars from plant material into alcohol and CO2, Biodiesel - A diesel substitute produced by extracting and chemically altering oil from plants., Flex-Fuel Vehicle - A vehicle that runs on either gasoline or a gasoline/ethanol/mixture., Hydroelectricity - Electricity generated by the kinetic energy of moving water/, Run-of-the-river - Hydroelectricity generation in which water is retained behind a low dam or no dam., Water impoundment - The storage of water in a reservoir behind a dam., Tidal energy - Energy that comes from the movement of water driven by the gravitational pull of the Moon., Siltation - The accumulation of sediments, primarily silt, on the bottom of a reservoir., Active Solar Energy - Energy captured from sunlight with advanced technologies., Photovoltaic solar energy - A system of capturing energy from sunlight and converting it directly into electricity., Wind energy - Energy generated from the kinetic energy of moving air, Wind turbine - A turbine that converts wind energy into electricity., Geothermal Energy - Heat energy that comes from the natural radioactive decay of elements deep within Earth, Ground source heat pump - A technology that transfers heat from the ground to a building., Fuel cell - An electrical-chemical device that converts fuel, such as hydrogen, into an electrical current., Electrolysis - The application of an electric current to water molecules to split them into hydrogen and oxygen, Smart Grid - An efficient, self-regulating electricity distribution network that network that accepts any source of electricity and distributes it automatically to end users.,

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