{"analytics_identifier":null,"base_path":"/government/statistics/household-energy-efficiency-statistics-detailed-report-2025","content_id":"cb9c9595-21b3-4e1a-8138-9d2315895b40","description":"Household Energy Efficiency Statistics, detailed report 2025","details":{"attachments":[{"accessible":true,"alternative_format_contact_email":"alt.formats@energysecurity.gov.uk","assets":[{"asset_manager_id":"69ba6cf126909a14239612ed","filename":"HEE_Stats_Detailed_Release_March_2026.pdf"}],"attachment_type":"file","command_paper_number":"","content_type":"application/pdf","file_size":1603189,"filename":"HEE_Stats_Detailed_Release_March_2026.pdf","hoc_paper_number":"","id":"9172037","isbn":"","number_of_pages":27,"title":"Household Energy Efficiency Statistics, detailed report 2025","unique_reference":"","unnumbered_command_paper":false,"unnumbered_hoc_paper":false,"url":"https://assets.publishing.service.gov.uk/media/69ba6cf126909a14239612ed/HEE_Stats_Detailed_Release_March_2026.pdf"},{"accessible":false,"alternative_format_contact_email":"alt.formats@energysecurity.gov.uk","assets":[{"asset_manager_id":"69ba6d03a564b64fbe35abba","filename":"Detailed_HEE_tables_March_2026.xlsx"}],"attachment_type":"file","command_paper_number":"","content_type":"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet","file_size":3883612,"filename":"Detailed_HEE_tables_March_2026.xlsx","hoc_paper_number":"","id":"9172038","isbn":"","title":"Detailed report 2025 HEE tables (Excel)","unique_reference":"","unnumbered_command_paper":false,"unnumbered_hoc_paper":false,"url":"https://assets.publishing.service.gov.uk/media/69ba6d03a564b64fbe35abba/Detailed_HEE_tables_March_2026.xlsx"},{"accessible":true,"alternative_format_contact_email":"alt.formats@energysecurity.gov.uk","assets":[{"asset_manager_id":"69ba6d13635612b767a466bc","filename":"Detailed_HEE_tables_March_2026.ods"}],"attachment_type":"file","command_paper_number":"","content_type":"application/vnd.oasis.opendocument.spreadsheet","file_size":3322449,"filename":"Detailed_HEE_tables_March_2026.ods","hoc_paper_number":"","id":"9172039","isbn":"","title":"Detailed report 2025 HEE tables (ODS)","unique_reference":"","unnumbered_command_paper":false,"unnumbered_hoc_paper":false,"url":"https://assets.publishing.service.gov.uk/media/69ba6d13635612b767a466bc/Detailed_HEE_tables_March_2026.ods"}],"body":"<div class=\"govspeak\"><p>This annual report presents detailed statistics on the Energy Company Obligation (<abbr title=\"Energy Company Obligation\">ECO</abbr>), the Green Deal (<abbr title=\"Green Deal\">GD</abbr>) and other government energy efficiency schemes, as well as insulation levels in Great Britain, up to the end of 2025.</p>\n\n<p>This is the eleventh annual release following the user consultation that took place in autumn 2015 on <abbr title=\"Green Deal\">GD</abbr>, <abbr title=\"Energy Company Obligation\">ECO</abbr> and insulation level statistics. It includes further analysis and geographical breakdowns of <abbr title=\"Energy Company Obligation\">ECO</abbr> measures. It also includes <abbr title=\"Energy Company Obligation\">ECO</abbr> delivery costs, estimated carbon and energy savings from measures installed, the <abbr title=\"Green Deal\">GD</abbr> supply chain, and estimates of home insulation levels. This release also covers further breakdowns of measures installed under various other government support schemes.</p>\n\n<p>These statistics are provisional and are subject to future revisions.</p>\n\n<p>For further information or questions about these statistics, email <a href=\"mailto:energyefficiency.stats@energysecurity.gov.uk\">energyefficiency.stats@energysecurity.gov.uk</a>.</p>\n\n</div>","change_history":[{"note":"First published.","public_timestamp":"2026-03-19T09:30:07Z"}],"document_type_label":"Accredited official statistics","documents":["<section data-module=\"ga4-link-tracker\" class=\"gem-c-attachment govuk-!-margin-bottom-6\">\n  <div class=\"gem-c-attachment__thumbnail govuk-!-display-none-print\">\n    <a class=\"govuk-link\" target=\"_self\" tabindex=\"-1\" aria-hidden=\"true\" data-ga4-link=\"{&quot;event_name&quot;:&quot;file_download&quot;,&quot;type&quot;:&quot;attachment&quot;}\" 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