Explanation of terms | Protergia

Explanation of terms

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Wind farm
All the  wind turbines of an installation whose function is to convert wind power to electricity.


Wind energy
The kinetic energy produced by the force of air in motion and converted via wind turbines to useful mechanical power and/or electricity.


Wind turbine(s)
Machines that convert wind energy to electricity.


Interconnected system
The transmission lines, installations and meters used to transport electricity to or from the Greek territory.


Solar energy
The energy produced from solar radiation and used to heat buildings directly or indirectly (comprising also the use of active and/or passive systems), as well as to produce electricity (a) via Photovoltaic systems, and (b) via solar thermal systems.


Thermal plants
Power plants producing electricity from fossil fuel (lignite, coal, oil, natural gas).


Retail market 
The electricity market that comprises low- and medium-voltage consumers.


Combined Cycle Plant (CCGT)
A thermal plant that produces electricity, consisting of a gas- and steam-turbine combination and comprising  a heat recovery boiler, a three-phase synchronous generator and other auxiliary installations.


Green energy
The power produced from renewable energy sources.


Combined Heat and Power (CHP) Plant
Cogeneration of Heat and Power (CHP) is based on the simultaneous production of exploitable or utilisable electrical and thermal power from the same source of energy.


Hydraulic energy
The energy produced by the force of falling water and exploited by hydropower plants (with small hydropower plants being those producing up to 15 MW of electrical power), in order to produce electricity and/or convert it to mechanical power.


Photovoltaic park
All the photovoltaic systems of an installation whose function is to convert solar energy to electricity.


Wholesale market
The Electrical Energy Trading System, which comprises the Day-Ahead Schedule (DAS), the Allocation procedure, the Settlement of Imbalances and the Capacity Assurance Mechanism, and whose participants are the producers, the suppliers and the selecting customers.