In addition to water vapor and carbon dioxide (CO 2 ), it includes methane (CH 4 ), nitrous oxide (N 2 O) and halogenated compounds, such as hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulfur hexafluoride (SF 6 ).

A business partnership between various entities with the objective of developing accepted international standards for the monitoring and reporting of GHG emissions and promoting their global acceptance.

Parameter that characterizes the energy losses of the collector for the environment.

Initiative promoted by the Secretary-General of the United Nations - Mr. Koffi Annan - with the objective of promoting human rights, labor, environment and the fight against corruption.

Sum of the direct and diffuse solar radiation received on a surface (from a solid angle of 2%).

Ratio of total atmospheric emissions to the total net production of the EDP Group.

Dose unit absorbed. Gray is the dose absorbed in an element of matter having a mass of 1 kilogram , to which the ionizing radiation imparts uniformly an energy of 1 joule. In the field of ionizing radiation gray may still be employed in association with other physical quantities which are also expressed in joules per kilogram. 1Gy = 1 J / kg

The power of a system or a plant that corresponds to the highest efficiency.

Wind speed value at which the developed power is maximized per unit area swept by the turbine rotor.

Effect by which ambient infrared radiation is retained in an enclosed space. A glass or other material covering, transparent to incoming solar radiation, absorbs the internal infrared radiation of greater wavelength (> 2.5 m). In the void, half the absorbed energy is re-incorporated into the enclosed space.
Note: The greenhouse effect produced by, inter alia, atmospheric carbon dioxide results in the re-heating of the earth's surface (see Atmospheric greenhouse effect).

Atmospheric CO2eq emissions recorded according to the Greenhouse Gas Protocol (GHG Protocol), developed by the World Resources Institute (WRI) and the World Business Council for Sustainable Development (WBCSD). The corporate GHG inventory is divided into three scopes: Scope 1: represents all direct emissions related to the operations owned or controlled by the company, including fixed combustion sources, company vehicles, and CH4 and SF6 emissions ; Scope 2: represents the indirect emissions related to the purchase of electricity, steam, heating and cooling for own use; Scope 3: represents the indirect inventoried emissions, which occur in the company's value chain.

A global, independent institution that develops a global reporting framework, enabling companies to prepare reports on their economic, environmental and social performance.

Quantity of primary energy (including the balance of external trade and movement of stocks) required by a geographical entity to cover domestic and banking demand.

Gross consumption minus banks. Note: This aggregate, key point of the balance sheet, can also be calculated by adding the consumption, the losses in the networks and the statistical deviation with the difference between the energy submitted to the transformation and the derived output.

The gross domestic product at market prices represents the final result of the production activity of the resident productive units. GDPmp is equal to the sum of the gross value added of the different institutional sectors or branches of activity, increased by taxes minus subsidies on products (which are not affected by sectors and industries).

Total electrical energy measured at the exit of all the main generators of the generating centers, including, consequently, the energy absorbed by the auxiliary services of the power stations and the loss of the main transformers.

Electric power at the generator terminals.

Difference between the level of the water plane at the end of the reservoir and the water level in the cross section of the stream in which the restitution takes place.

Electrical power at the terminals