For the U.S. Department of Energy (DOE), Brattle experts authored a whitepaper on methods for unbundling and pricing distribution services in an environment of high distributed energy resources (DER) market penetration. The report identified the various services that are provided by the utility to DER customers, the discrete services provided by DER customers to the utility, and various frameworks for packaging and pricing these services. The report included an assessment of the advantages and disadvantages of each pricing framework from the perspective of both the utility and its customers.