The document discusses the Green Deal program in the UK, which aims to promote energy efficiency upgrades for homes and buildings. It outlines that the Green Deal will be a market-led mechanism funded by private capital, allowing energy efficiency improvements with no upfront costs via repayments on energy bills. It also discusses the role of the Energy Company Obligation (ECO) in supporting households that may not be suited for Green Deal financing and focuses on hard to treat homes and vulnerable groups. Local authorities will work with the Department of Energy and Climate Change to deliver the Green Deal and ECO.