Question

To ask the Secretary of State for Energy and Climate Change, what information is held by Ofgem on (a) the location of households who have had cavity wall installations under the Energy Company Obligation Scheme and (b) which companies have funded each such installation.

Ofgem holds information relating to a) the address at which a measure is installed, and b) the energy company that funded a measure, for all measures notified to it under the Energy Companies Obligation. The following document lists all the information provided by energy companies to Ofgem for each notified ECO measure:

https://www.ofgem.gov.uk/publications-and-updates/eco-notification-data-dictionary-v1.3.