Australia’s energy transition increasingly relies on Consumer Energy Resources (CER) such as rooftop solar, batteries, electric vehicles and smart appliances, which are now essential to system reliability, affordability and resilience. Without effective data-sharing frameworks, however, the full potential of CER cannot be realised, limiting performance, innovation and market reform. A recent consultation paper under the National CER Roadmap identifies six key barriers, with retailers well placed to address many of them through clear policy direction and regulatory alignment. We take a closer look at the barriers outlined in the paper and the future role of retailers in addressing them.