<p>The Department publishes information on the number of households per month with ECO4 measures installed in Table T2.5b of the latest <a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.gov.uk%2Fgovernment%2Fcollections%2Fhousehold-energy-efficiency-national-statistics&data=05%7C01%7CParliamentary.PQ%40energysecurity.gov.uk%7C45945f9a4b6148b8d89908db89128361%7Ccbac700502c143ebb497e6492d1b2dd8%7C0%7C0%7C638254484841100299%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=kYkJ8US0n2nERzHZyr%2BGRChQ1xmY5bzo9yX8wvKHElw%3D&reserved=0" target="_blank">Household Energy Efficiency Statistics release</a></p>