Energy Planning - GLA Guidance

Policy 5.2 of the London Plan requires each major development proposal to submit a detailed energy assessment.

The purpose of an energy assessment is to demonstrate that climate change mitigation measures are integral to the scheme’s design and evolution, and that they are appropriate to the context of the development.

The GLA provides guidance for developers and their advisers on preparing energy assessments to accompany strategic planning applications. Each assessment is required to demonstrate how the targets for regulated CO2 emission reduction over and above 2013 Building Regulations will be met using the Mayor’s energy hierarchy.

The latest version of the guidance contains a number of updates, including:

  • From January 2019, planning applicants are encouraged to use updated (SAP 10) carbon emission factors to assess the expected carbon performance of a new development. Applicants should continue to use the current Building Regulations methodology for estimating energy performance against Part L 2013 requirements (as outlined in Section 6) but with the outputs manually converted for the SAP 10 emission factors. A spreadsheet (version 1.1) has been developed for this purpose which should be submitted alongside an energy assessment. It should be noted that the use of the SAP 10 emission factors in this context is for demonstrating performance against planning policy targets and, as such, is separate to Building Regulation compliance. Applications should therefore ensure that compliance with Building Regulations is maintained.

  • Reference is made to the latest CIBSE TM59 overheating guidance which should be used for all residential planning applications

  • Updated information requirements for applicants proposing to install heat pumps and CHP, including clarification on when CHP is appropriate.

  • An appendix containing the existing emission limits for heating and energy plant has been added.

The GLA also provides guidance for boroughs on establishing carbon offset funds.  Boroughs are required to set up carbon offset funds to collect payments from developers to meet any carbon shortfall from new development. Carbon offset funds provide a source of funding for carbon reductions projects across London. The guidance provides information for London’s boroughs on setting up funds and identifying suitable projects to best utilise that funding.