Manual or remote control device to open or close the water inlet (spherical, cylindrical, clap valve, flat, etc.).

Amount of energy to transform.

Electrical power at the output of the generators. Refers to the total power of the facilities, even if they do not correspond to the consolidation perimeter of the company's accounts.

A supply system in which a production or distribution company offers various forms of energy in the region served by distribution networks (electricity, gas, district heating, etc.).

Storage in which the reservoir allows a compensation of hydraulicity variations in cycles of more than one year duration.

Association plate of different minerals with the carboniferous substance, regardless of their density.

Common operation of two or more energy transmission and / or distribution systems. This type of operation implies the existence of technical agreements (pressure, tension, frequency, phase, etc.) and economic agreements necessary for the management and operation of the network. The same applies to the parallel operation of two or more networks.

A network for connecting two or more pipelines or networks, inter alia for interregional or international exchanges of large quantities of energy, with a view to improving profitability and security of supply.

Network that, nationally or internationally, makes the connection that allows the movement of energy between networks, between power plants or between networks and power plants, making it possible to increase the profitability and reliability of the electric power supply.

In energy economy, especially in electricity economy, permanent and intensive cooperation is required in the planning, construction and operation of networks. The undertakings concerned must respect the technical requirements and make joint investments corresponding to the management conditions of the different parties.

Connection between two or more networks, by one or more lines.

The International System of Units, as well as its abbreviation SI, was adopted by the 11th General Conference of Weights and Measures (GFCM) in 1960. This system includes base units and derived units and covers the two additional radian and steradian units which together form the coherent system of SI units.

International Rule for Standardization, which establishes requirements for the certification of an environmental management system.

Standalone supply system without connection to a neighboring network.

Line of constant average speed of the wind. Note: The conditions for the determination of the iso-wind must be pre-specified.

Mechanism established by the Kyoto Protocol to allow Annex I countries to finance projects in another country, from the same Annex, with counterparts of CO 2 CO 2 emission reduction units tradable on the market.

Unit of work, energy and quantity of heat. The joule is the work produced by a force of 1 newton whose point of application shifts 1 meter in the direction of the force. 1 J = 1N.m

The kelvin, unit of thermodynamic temperature, is the fraction 1 / 273.16 of the thermodynamic temperature of the triple point of water. [13] CGPM (1967) , Resolution 4]. Note 1: The 138 CGPM (1967, Resolution 3) also decided that the Kelvin unit and its K symbol should be used to express a range or a difference in temperature. Note 2: In addition to the thermodynamic temperature (symbol T), expressed in kelvins, the Celsius temperature (symbol t) defined by the equation t = T- 0 is also used, where T 0 = 273,15 K by definition. To set the Celsius temperature, the unit "degree Celsius" is used which is equal to the unit "kelvin"; in this case, "Celsius degree" is a special name used instead of "kelvin". A Celsius temperature range or difference can therefore be expressed in both Kelvin and Celsius degrees.

Plan of separation, generally of reduced width, limited by the upper edge of a slope situated immediately below.

The kilogram is the unit of mass and is equal to the mass of the international prototype of the kilogram. [13th CGPM (1901)].