35 - Electricity, gas, steam and air conditioning supply

This Chapter has been extracted from the ONS Explanatory Notes and provides a more detailed explanation of possible activities that could fall within the SIC Codes related to the Chapter.

35.1 Electric power generation, transmission and distribution

This group includes the generation of bulk electric power, transmission from generating facilities to
distribution centres, and distribution to end users.

35.11 Production of electricity

This class includes:
- operation of generation facilities that produce electric energy; including thermal, nuclear, hydroelectric, gas turbine, diesel and renewable

This class excludes:
- production of electricity through incineration of waste, see 38.21

35.12 Transmission of electricity

This class includes:
- operation of transmission systems that convey the electricity from the generation facility to the
distribution system

35.13 Distribution of electricity

This class includes:
- operation of distribution systems (i.e., consisting of lines, poles, meters, and wiring) that convey electric power received from the generation facility or the transmission system to the final consumer

35.14 Trade of electricity

This class includes:
- sale of electricity to the user
- activities of electric power brokers or agents that arrange the sale of electricity via power distribution
systems operated by others
- operation of electricity and transmission capacity exchanges for electric power

35.2 Manufacture of gas; distribution of gaseous fuels through mains

This group includes the manufacture of gas and the distribution of natural or synthetic gas to the
consumer through a system of mains. Gas marketers or brokers, who arrange the sale of natural gas over distribution systems operated by others, are included.

The separate operation of gas pipelines, typically done over long distances, connecting producers with
distributors of gas, or between urban centres, is excluded from this group and classified with other pipeline transport activities.

35.21 Manufacture of gas

This class includes:
- production of gas for the purpose of gas supply by carbonation of coal, from by-products of agriculture
or from waste
- manufacture of gaseous fuels with a specified calorific value, by purification, blending and other
processes from gases of various types including natural gas

This class excludes:
- production of crude natural gas, see 06.20
- operation of coke ovens, see 19.10
- manufacture of refined petroleum products, see 19.20
- manufacture of industrial gases, see 20.11

35.22 Distribution of gaseous fuels through mains

This class includes:
- distribution and supply of gaseous fuels of all kinds through a system of mains

This class excludes:
- (long-distance) transportation of gases by pipelines , see 49.50

35.23 Trade of gas through mains

This class includes:    
- sale of gas to the user through mains
- activities of gas brokers or agents that arrange the sale of gas over gas distribution systems operated by
others
- commodity and transport capacity exchanges for gaseous fuels

This class excludes:
- wholesale of gaseous fuels, see 46.71
- retail sale of bottled gas, see 47.78
- direct selling of fuel, see 47.99

35.3 Steam and air conditioning supply

35.30 Steam and air conditioning supply

This class includes:
- production, collection and distribution of steam and hot water for heating, power and other purposes
- production and distribution of cooled air
- production and distribution of chilled water for cooling purposes
- production of ice, for food and non-food (e.g. cooling) purposes

 

For all queries related to this Chapter or any other aspect of SIC Codes, please contact the Office of National Statistics on 01329 444970 or email classifications.helpdesk@ons.gov.uk.