National statistics

National Energy Efficiency Data-Framework (NEED) report: summary of analysis 2021

Summary of analysis using the National Energy Efficiency Data-Framework using consumption data from 2005 to 2019.

Applies to England, Scotland and Wales

Documents

Error notices

Consumption data tables

Impact of measures data tables

Annex A: What is NEED?

Annex B: Overview of data tables

Annex D: Methodology note

Details

The National Energy Efficiency Data-Framework (NEED) was set up to provide a better understanding of energy use and energy efficiency in domestic and non-domestic buildings in Great Britain. The data framework matches data about a property together - including energy consumption and energy efficiency measures installed - at household level.

11 August 2023 Error notice: revisions to the June 2021 Domestic NEED annual report

We identified 2 processing errors in this edition of the Domestic NEED Annual report and corrected them. The changes are small and do not affect the overall findings of the report, only the domestic energy consumption estimates. The revisions are summarised here:

Error 1: Local authority consumption estimates

Error 2: Some properties incorrectly excluded from the Scotland multiple attributes tables

  • Extent of the error: These corrections primarily affect the number in sample column for all years as some properties were incorrectly excluded from the consumption estimates. There have also been revisions to the mean, median, upper and lower quartiles. Using 2019 as an example, around 80% of the updated mean and median values are within 300 kWh of what was previously published.
  • Years affected: 2017-2019
  • Countries affected: Scotland
  • Data tables affected: Multiple attributes tables: Scotland, 2019 (all tables)

4 August 2021 Error notice: revisions to the June 2021 Domestic NEED annual report

We identified 2 processing errors in this edition of the Domestic NEED Annual report and corrected them. The changes are small and do not affect the overall findings of the report, only the domestic energy consumption estimates. The impact of energy efficiency measures analysis remains unchanged. The revisions are summarised here:

Error 1: Some properties incorrectly excluded from the 2019 gas consumption estimates

Error 2: Processing of the EPC data

  • Extent of the error: For around 6% of the properties used in the consumption estimates, the EPC rating used was not based on the most recent EPC assessment
  • Years affected: 2017-2019
  • Countries affected: England and Wales
  • Data tables affected: the gas and electricity consumption breakdowns by EPC rating in the following tables:

December 2021: Survey on the future of Domestic NEED - response published

In our June 2021 survey we asked for feedback to inform our development of Domestic NEED to better meet user requirements. We have reviewed responses and published our response.

Published 24 June 2021
Last updated 11 August 2023 + show all updates
  1. Two processing errors were identified in the Domestic NEED Annual report which have now been corrected. The changes resulting from these corrections are small and do not affect the overall findings of the report. More information is provided within the page detail text.

  2. Added link to 2021 NEED survey response.

  3. Two processing errors were identified in the Domestic NEED Annual report which have now been corrected. The changes resulting from these corrections are small and do not affect the overall findings of the report. More information is provided within the page detail text.

  4. First published.