OFGEM have just published a guidance document for ECO. It provides information on which type of evidence can be used for Affordable Warmth Group eligibility. It will show the most common examples of eligibility, but please note that there are other routes to eligibility under other circumstances which are not described in the document.
The guidance begins with describing the possible combination of benefits needed, in order for the household to be eligible. It will also state which forms of documents are requested and then it’ll answer frequently asked questions. The guidance ends with information on how to layout a letter when redacting information and lastly, in the appendix examples of letters are shown here.