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Distributed generation, energy storage and smart grid

Distributed generation, energy storage and smart grid

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Distributed energy generation (DEG) systems are small-scale power generation units usually in the range of 1-10 000 kW without any special siting requirements that might be connected to the grid at the demand side. The concept is not brand new. For example, there were plenty of the so-called local hydro power stations in the rural areas of the Soviet Union in the beginning of 1950. The renaissance of DEG systems coincided with small wind generators and photovoltaic solar cells introduction in electricity markets of some western countries. In the so-called free market economy, it was obvious to encourage DEG development. So, since the beginning of 2000 many small generators were allowed to sell electricity back to the grid for the same price they would pay to buy it. The major investors in small-scale DEG projects have been unregulated independent power producers that sell their generated electric power to utilities usually under state -guaranteed long-term contracts.

Chapter Contents:

  • 17.1 Distributed generation
  • 17.2 Distributed energy storage
  • 17.3 Smart metering
  • 17.4 Demand response
  • 17.5 Smart Grid

Inspec keywords: solar cells; distributed power generation; power generation economics; wind power plants; hydroelectric generators; smart power grids; power markets; photovoltaic power systems; demand side management; energy storage

Other keywords: Soviet Union; power 1 kW to 10000 kW; smart grid; small-scale electric power generation units; small wind generators; distributed energy generation system; energy storage; state-guaranteed long-term contracts; small-scale DEG projects; photovoltaic solar cells; electricity market; free market economy; hydropower stations

Subjects: Hydroelectric power stations and plants; Wind power plants; Solar power stations and photovoltaic power systems; Other energy storage; Solar cells and arrays; Power system management, operation and economics; Distributed power generation

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