Statutory guidance

SR2018 No 3: Specified Generator, Tranche B low risk, base load operation 0 to 2 MWth in Air Quality Management Areas or high ambient NOx (existing permits)

Standard rules and generic risk assessment for Tranche B Specified Generator with individual unit capacity <2MWth in Air Quality Management Areas or high ambient NOx.

From:
Environment Agency
Published
6 September 2018
Last updated
26 February 2026 — See all updates

Documents

SR2018 No 3 standard rules Specified Generator, Tranche B low risk, base load operation 0 to 2 MWth in Air Quality Management Areas or high ambient NOx (existing permits)

Ref: LIT 10965

PDF, 707 KB, 9 pages

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SR2018 No 3 generic risk assessment Specified Generator, Tranche B low risk, base load operation 0 to 2 MWth in Air Quality Management Areas or high ambient NOx (existing permits)

Ref: LIT 10966

MS Excel Spreadsheet, 46 KB

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Details

When referred to in an environmental permit these rules will allow the operator to operate one or more Tranche B Specified Generators which are natural gas fired engines or boilers which are CHPs. The individual unit capacity is between <1 to 2 MWth and the total is <2.0 MWth at the specified location which may be in urban areas where background NO2 is high or in an Air Quality Management Area. Secondary abatement where necessary.

Applies to Specified Generators burning natural gas.

Updates to this page

Published 6 September 2018
Last updated 26 February 2026 + show all updates

  1. Following a consultation, amendments have been made to Table 2.3 operating technique (e) wording. The rule set has also been withdrawn for new applications and is now only relevant to existing permit holders. Previous versions of the rule set and GRA have been removed as they are no longer applicable.

  2. Added updated standard rule and associated generic risk assessment.

  3. First published.

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