- 35.21.0 Manufactured gas, for energy supply
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35.21.01 Manufactured gas from non-renewable sources, for energy supply
This subcategory includes:
- gas for the purpose of energy supply by carbonation of coal or other non-renewable sources
This subcategory excludes:
- crude natural gas, see 06.20.00
- refined petroleum products, see 19.20.3
- industrial gases, see 20.11.1
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35.21.02 Manufactured gas from renewable sources, for energy supply
This subcategory includes:
- biogas for the purpose of gas supply from e.g. sewage sludge, manure, landfills, food waste and other organic waste
- gaseous biofuels for energy supply through a gas distribution network
This subcategory also includes:
- cleansing services of biogas for energy supply through a permanent network
This subcategory excludes:
- crude natural gas, see 06.20.00
- refined petroleum products, see 19.20.3
- industrial gases, see 20.11.1
- basic organic gases, not for energy supply through a network, see subcategories of 20.14
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35.21.03 Recovered gas, for energy supply
This subcategory includes:
- recovered gas for the purpose of energy supply, including combustible gases of solid carbonaceous origin recovered from manufacturing and chemical processes of which the principal purpose is other than the production of fuel
This subcategory excludes:
- crude natural gas, see 06.20.00
- refined petroleum products, see 19.20.3
- industrial gases, see 20.11.1