Quarterly statistics which show the number of smart meters installed by large energy suppliers in April to June 2026 and the total numbers of smart and non-smart meters operated by these suppliers at the end of June 2026.
Source
https://www.gov.uk/government/statistics/announcements/smart-meters-april-to-june-2026Canonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.