Part 11: conservation of fuel and power

Part 11: Conservation of fuel and power

These documents set out what, in ordinary circumstances, may be accepted as reasonable provision for compliance with the energy efficiency requirements of the building bye-laws.

Document 11.1A 2016 Edition

Document 11.1A (2016) comes into effect on the 18 July 2016 and covers the conservation of fuel and power within new dwellings only. It sets the Target Energy Rate (TER) for the construction of new dwellings.
The document also provides guidance on:

internal lighting
solar gain
heating and hot water systems
air-pressure testing

Technical guidance document 11.1A (2016 edition)
Domestic building services compliance guide 2013 edition
Jersey JSAP (Jersey standard assessment procedure) calculator website
SAP (standard assessment procedure) conventions document

Document 11.1B 2016 Edition

Document 11.1B (2016) comes into effect on the 18 July 2016 and covers the conservation of fuel and power within existing dwellings and the change of use of an existing building to form a dwelling.
It gives U-value standards for:

walls, floors and roofs
windows, doors and rooflights

Covers fittings and services such as:

windows and doors
heating and hot water systems
lighting

Technical guidance document 11.1B (2016 edition)
Domestic building services compliance guide 2013 edition
Assessment procedure for the installation of condensing boilers

From 1 October 2019 an application for a building permit to construct an extension to a dwelling will need to be accompanied by a reduced data standard assessment (RdSAP). This is to demonstrate compliance with the bye-law requirement for consequential improvements to energy performance of the existing dwelling.

Details of RdSAP methodology and home energy audits can be found here Home energy audits

You can search for local accredited Home Energy Audit assessors on the Quidos website.

Quidos list of assessors

Document 11.2A 2016 Edition

Document 11.2A (2016) comes into effect on the 18 July 2016 and covers the conservation of fuel and power in buildings other than dwellings. It sets the Target Energy Rate (TER) for the construction of new non-domestic buildings.
The document also provides guidance on:

internal lighting
solar gain
space heating
air-pressure testing

Technical guidance document 11.2A (2016 edition)
Non-domestic building services compliance guide 2013 edition
Simplified Building Energy Model (SBEM) website

Document 11.2B 2016 Edition

Document 11.2B (2016) comes into effect on the 18 July 2016 and provides guidance on meeting the requirements for the conservation of fuel and power in existing non-domestic buildings and the change of use of non-domestic buildings.
It gives U-value standards for: