Agency for the Cooperation of Energy Regulators (ACER) and the Council of European Energy Regulators (CEER) published Annual Report on the Results of Monitoring the Internal Electricity and Natural Gas Markets in 2016. The data used for compiling this Report have been collected internally or provided by the European Commission, CEER, the National Regulatory Authorities, and the European Networks of Transmission System Operators for electricity and gas. This year, the Report comprises a main volume and four thematic volumes on Retail Markets, Customer Protection and Empowerment, Wholesale Gas Markets, and Wholesale Electricity Markets.

The report is available on the websites of ACER.