GDR Surveyors work primarily within the Energy Companies Obligation, described by Ofgem as:
"The Energy Companies Obligation (ECO) is an energy efficiency programme that was introduced into Great Britain at the beginning of 2013. It replaces two previous schemes, the Carbon Emissions Reduction Target (CERT) and the Community Energy Saving Programme (CESP). ECO places legal obligations on the larger energy suppliers to deliver energy efficiency measures to domestic energy users. It operates alongside the Green Deal which is designed to help people make energy efficiency improvements to buildings by allowing them to pay the costs through their energy bills rather than upfront. ECO is intended to work alongside the Green Deal to provide additional support in the domestic sector, with a particular focus on vulnerable consumer groups and hard-to-treat homes."
Under the rules of ECO, energy suppliers are obliged to help improve the energy efficiency of their domestic customers' buildings in three distinct areas:
- Carbon Emissions Reduction Obligation (CERO)
Under the Carbon Emissions Reduction Obligation, energy companies must concentrate efforts on hard-to-treat homes and measures that cannot be fully funded through the Green Deal. Solid wall insulation and hard-to-treat cavity wall insulation are the primary areas for focus under this target. Other insulation measures and connections to district heating systems are also eligible if they are promoted as part of a package that includes solid wall insulation or hard-to-treat cavity wall insulation.
- Carbon Saving Community Obligation (CSCO)
Under the Carbon Saving Community Obligation, energy companies must focus on the provision of insulation measures and connections to domestic district heating systems supplying areas of low income. This target has a sub-target, which states that at least 15 per cent of each supplier's Carbon Saving Community Obligation must be achieved by promoting measures to low income and vulnerable households living in rural areas.
- Home Heating Cost Reduction Obligation (HHCRO)
Under the Home Heating Cost Reduction Obligation, energy suppliers are required to provide measures which improve the ability of low income and vulnerable households (the 'Affordable Warmth Group') to heat their homes. This includes actions that result in heating savings, such as the replacement or repair of a boiler for example.