Production , collection and distribution of electricity

Generation and transmission of electricity: hydro-electric power plants

Generation and transmission of electricity: coal based thermal power plants

Generation and transmission of electricity: oil-based thermal power plants

Generation and transmission of electricity: atomic reactor power plants

Generation and transmission of electricity: other power plants using conventional fuels (e.g. gas based)

Generation of solar energy

Generation and distribution of bio-gas energy

Generation of electricity from other non-conventional sources.

Collection and distribution of electric energy to households, industrial, commercial and other users

Manufacture of gas; distribution of gaseous fuels through mains

Steam and hot water supply