Glossary and abbreviations

Geothermal or "earth heat" is found in the form of steam or hot water reservoirs, and even in hot rocks. When the geothermal reservoir is at a moderate temperature, this resource is used to produce the heat distributed in a heating network.
When the temperature of the geothermal reservoir is higher, it can be used to produce steam to generate electricity.

Plant waste from gardening and landscaping activities. A distinction is made between household or garden waste, and municipal green waste produced by a municipality's technical services.

Gas that absorbs part of the sun's rays, such as carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), tropospheric ozone (O3), CFCs and HCFCs, synthetic gases that are responsible for damaging the ozone layer, as well as CFC replacements HFC, PFC and SF6. Veolia Environmental Services's emissions are mainly CO2 and CH4. That latter's impact on the greenhouse effect is 21 times greater than that of CO2. The use of clean fuels, the recovery of the energy in landfill gas and the development of cogeneration are all making progress in significantly reducing the greenhouse effect.

Giga Watt hour