- 40 - Production, transmission and distribution of electricity, gas, steam and hot water (2)
- 40.1 - The production, transmission and distribution of electricity (1155)
- 40.10 - Production, transmission and distribution of electricity (2081)
- 40.10.1 - Electricity (415)
- 40.10.11 - Power generation by thermal power plants (904)
- 40.10.12 - Production of hydroelectricity (114)
- 40.10.13 - Electricity generation by nuclear power plants (24)
- 40.10.14 - Power plants and other industrial power stations (314)
- 40.10.2 - Power Transmission (4544)
- 40.10.3 - Electrical Distribution (1434)
- 40.10.4 - Promoting efficiency of power plants (1417)
- 40.10.41 - Promoting efficiency of thermal power plants (424)
- 40.10.42 - Promoting health hydropower (40)
- 40.10.43 - Promoting efficiency of nuclear power plants (163)
- 40.10.44 - Promoting efficiency of power plants and other industrial power stations (136)
- 40.10.5 - Promoting efficiency of electrical networks (3970)
- 40.11 - Power
- 40.11.1 - Electricity generation by thermal power plants
- 40.11.2 - Production of hydroelectricity
- 40.11.3 - Electricity generation by nuclear power plants
- 40.11.4 - Power plants and other industrial power stations
- 40.11.5 - Promoting efficiency of power plants
- 40.11.51 - Promoting efficiency of thermal power plants
- 40.11.52 - Promoting health hydropower
- 40.11.53 - Promoting efficiency of nuclear power plants
- 40.11.54 - Promoting efficiency of power plants and other industrial power stations
- 40.12 - Power Transmission (2)
- 40.13 - Distribution of electricity and electricity trading
- 40.13.1 - Electrical Distribution
- 40.13.2 - Electricity Trade
- 40.13.3 - Promoting efficiency of electrical networks (1)
- 40.2 - Production and distribution of gaseous fuels (150)
- 40.20 - Manufacture and distribution of gaseous fuel (300)
- 40.20.1 - Production of gaseous fuel (53)
- 40.20.2 - Distribution of gaseous fuels (3115)
- 40.21 - Manufacture of gas
- 40.22 - Distribution of gaseous fuels, trade gaseous fuel supplied through distribution networks
- 40.22.1 - Distribution of gaseous fuels
- 40.22.2 - Retail gas fuel supplied through distribution networks
- 40.3 - Production, transmission and distribution of steam and hot water (thermal energy) (1243)
- 40.30 - Production, transmission and distribution of steam and hot water (thermal energy) (3658)
- 40.30.1 - Production of steam and hot water (thermal energy) (1169)
- 40.30.11 - Production of steam and hot water (thermal energy) thermal power plants (150)
- 40.30.12 - Production of steam and hot water (thermal) nuclear power plants (4)
- 40.30.13 - Production of steam and hot water (thermal) power plants and other industrial power stations (32)
- 40.30.14 - Production of steam and hot water (thermal power) boilers (5572)
- 40.30.17 - Production of chilled water or ice (natural, water) to cool (47)
- 40.30.2 - Transfer of steam and hot water (thermal energy) (886)
- 40.30.3 - The distribution of steam and hot water (thermal energy) (1923)
- 40.30.4 - Promoting efficiency boilers (3096)
- 40.30.5 - Promoting efficiency heating systems (1810)
- 40.30.6 - Sales of steam and hot water (thermal energy)
- 41 - Collection, purification and distribution of water (6)
- 41.0 - Collection, purification and distribution of water (888)
- 41.00 - Collection, purification and distribution of water (3177)
- 41.00.1 - Collection and purification (1896)
- 41.00.2 - Water Distribution (5000)