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Energy dataLast updated: DESNZ cumulative figures for January 2013 to December 2025

ECO4 Scheme and Insulation Grants by Area 2026 — Measures and Homes

ECO and the Great British Insulation Scheme paid for energy-efficiency measures across Great Britain. This page shows what DESNZ recorded in each authority: measures installed and households receiving them, kept as two different counts.

The Great British Insulation Scheme closed on 31 March 2026. Its figures below are a record of delivery before it closed, not an application route. ECO eligibility remains an official decision and is not assessed here.

ECO and GBIS measures in your area

Choose a local authority to see the latest cumulative scheme figures. A dash means the figure was not available.

ECO and GBIS delivery

Aberdeen City

Energy efficiency measures and households in Aberdeen City
SchemeMeasures installedHouseholds receiving measures
Energy Company Obligation (ECO)10,182

no rate — dwelling stock is published for England only.

8,177
Great British Insulation Scheme (GBIS)closed60

no rate — dwelling stock is published for England only.

48

Measures and households are separate published counts. One household can receive several measures, so neither count is derived from the other. The rate is measures per 1,000 dwellings for English areas only; it is not a share of households helped.

DESNZ also publishes 113,370 as a household projection. This is DESNZ’s 2022-based household projection for 2025. It is shown as published and is not the dwelling denominator used for any rate.

This page does not decide whether you qualify. Use the official ECO information and eligibility route.

Measures, households and dwellings are different

A measure is one installation. A household is a group of people, and one household can receive several measures. A dwelling is a self-contained home whether or not anybody lives in it. The published household projection is shown as context but is never used as the denominator.

For English areas only, the comparison rate divides measures by MHCLG’s separately sourced dwelling stock and states that basis beside the number. Scottish and Welsh areas return no rate, because no Great Britain denominator can be built from an England-only release.

How many measures go in each year

The figures above are cumulative totals for one area. This is the national picture over time: how many measures went in across Great Britain each year, and which schemes paid for them. It answers the question a single cumulative count cannot, which is whether delivery is speeding up or slowing down.

The series is annual and counts measures rather than homes. The Energy Company Obligation is most of it — 4.4 million of the 4.9 million measures recorded since 2013 — so the smaller schemes are listed separately rather than lost inside a total.

Great Britain · 2013 to 2025

How many measures go in each year

Measures installed in 2025

385,041

449,026 the year before

  1. 2013530,878
  2. 2014783,208
  3. 2015453,700
  4. 2016367,725
  5. 2017201,478
  6. 2018211,742
  7. 2019218,272
  8. 2020318,337
  9. 2021457,337
  10. 2022213,370
  11. 2023332,659
  12. 2024449,026
  13. 2025385,041

Which schemes are still installing, 2025

Schemes that had already closed are left out rather than shown as zero. A zero below is a scheme that is still open and installed nothing.

  • Energy Company Obligation (ECO)271,728 measures
  • Great British Insulation Scheme67,032 measures
  • Social Housing Decarbonisation Fund35,193 measures
  • Home Upgrade Grant9,624 measures
  • Warm Homes: Local Grant799 measures
  • Warm Homes: Social Housing Fund665 measures
  • Green Deal finance plans0 measures

A measure is one installation, not one home. A house that has its loft topped up and its cavity filled counts twice here. DESNZ publishes a separate households figure and it covers the Energy Company Obligation alone.

These are measures installed during a year. The insulated stock figures on this page are a count of properties that have a measure in place. They answer different questions and do not reconcile, because a measure can be installed in a property already counted as insulated.

How much insulation potential remains

The national stock series estimates how many properties already have cavity-wall, loft or solid-wall insulation and how many could still take it. It is a Great Britain stock estimate, separate from the scheme-delivery counts above.

Great Britain insulation stock

Properties insulated and remaining potential

Latest DESNZ estimate of insulated properties and remaining potential in Great Britain
Insulation typeProperties insulatedRemaining potentialAs at
Cavity walls15,406,0005,041,000December 2025
Lofts17,703,0007,731,000December 2025
Solid walls909,0007,601,000December 2025

Insulation stock and scheme delivery answer different questions and do not reconcile: a scheme measure can top up a property already counted as insulated. Remaining potential is DESNZ’s estimate of what is technically possible, not a forecast, target or promise that a property qualifies for a scheme.

Where to check eligibility

This page does not decide whether a household qualifies. Read the official ECO guidance and eligibility route for the current scheme. GOV.UK also keeps the former Great British Insulation Scheme page as the official record of the scheme that closed.

For the wider register of household support, see energy grants and schemes. That register also ends at the official route rather than making its own eligibility judgement.

Frequently asked questions

Is the Great British Insulation Scheme still open?

No. The Great British Insulation Scheme closed on 31 March 2026. The figures on this page are the measures it delivered before closing; they are not evidence that applications remain open.

Does a high local count mean I qualify for ECO4?

No. A local delivery count describes completed measures in the official statistics. It says nothing about an individual home’s eligibility. Use the official ECO information and route linked on this page; this site does not make an eligibility decision.

Why are measures and households different?

One household can receive more than one measure, such as loft and cavity-wall insulation. DESNZ publishes both counts, so this page keeps both and never divides one by the other.

Why is there no per-dwelling rate for Scotland or Wales?

The scheme release covers Great Britain, but the dwelling-stock denominator held here is published for England only. Scotland and Wales publish their own series on their own definitions, so this page returns no rate rather than combining unlike figures.

Related reading

Rob Gibbs

Written by

Rob Gibbs

Hi, I'm Rob, and I run Energy-Review.co.uk. I initially started this project in 2018 when I was looking to switch energy suppliers and found there wasn't a website that provided simple, data-backed reviews on all the suppliers available. Since then, I have spent a lot of time (too much, some may say!) looking at all publicly available data about each supplier and writing reviews using this information. These reviews are updated as regularly as possible, and any data is backed up by a source where necessary. I have also started writing guides on various energy-related topics, which hopefully you will find useful. If you find any issues, please use our contact form to let us know.