Distributed generation refers to relatively small-scale generators that produce several kilowatts... more Distributed generation refers to relatively small-scale generators that produce several kilowatts (kW) to tens of megawatts (MW) of power and are generally connected to the grid at the distribution or substation levels. i Distributed generation units use a wide range of generation technologies, including gas turbines, diesel engines, solar photovoltaics (PV), wind turbines, fuel cells, biomass, and small hydroelectric generators. Some DG units that use conventional fuel-burning engines are designed to operate as combined heat and power (CHP) systems that are capable of providing heat for buildings or industrial processes using the "waste" energy from electricity generation. 1 For example, our own institution, MIT, has a combined heating, cooling, and power plant based on a gas turbine engine rated at about 20 MW, connected to our local utility at distribution primary voltage (13.8 kV). Distributed i It is important to note that distributed generation is distinct from dispersed generation, which is not connected to the grid. Dispersed generation is typified by standby diesel generators that provide backup power in the event of a grid failure. Because these units typically do not impact utility operation or planning activities, we do not discuss them. Though not connected to the grid, dispersed generators can participate in demand response programs (see Chapter 7).
Distributed generation refers to relatively small-scale generators that produce several kilowatts... more Distributed generation refers to relatively small-scale generators that produce several kilowatts (kW) to tens of megawatts (MW) of power and are generally connected to the grid at the distribution or substation levels. i Distributed generation units use a wide range of generation technologies, including gas turbines, diesel engines, solar photovoltaics (PV), wind turbines, fuel cells, biomass, and small hydroelectric generators. Some DG units that use conventional fuel-burning engines are designed to operate as combined heat and power (CHP) systems that are capable of providing heat for buildings or industrial processes using the "waste" energy from electricity generation. 1 For example, our own institution, MIT, has a combined heating, cooling, and power plant based on a gas turbine engine rated at about 20 MW, connected to our local utility at distribution primary voltage (13.8 kV). Distributed i It is important to note that distributed generation is distinct from dispersed generation, which is not connected to the grid. Dispersed generation is typified by standby diesel generators that provide backup power in the event of a grid failure. Because these units typically do not impact utility operation or planning activities, we do not discuss them. Though not connected to the grid, dispersed generators can participate in demand response programs (see Chapter 7).
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