Warm Home Discount Scheme
The Warm Home Discount scheme was established by the Warm Home Discount Regulations in 2011. The government has extended the scheme through to March 2026.
The scheme requires participating domestic energy suppliers, to provide support to persons on low-income and who are vulnerable to cold-related illness or living wholly or mainly in fuel poverty in Great Britain
Ofgem/Warm home discount scheme
The government also recognises that many households need support to help deal with rising energy bills.
All households with a domestic electricity connection will be automatically eligible for the £400 grant. Households will not need to apply for the Scheme, and it is expected that in most cases, electricity suppliers will apply the reduction automatically to bills from October 2022:
https://www.gov.uk/energy bills support scheme explainer