Distributed generation (DG) poses new challenges in distribution network development and operation. Distribution Network Operators (DNOs) will face more active management of networks, new commercial arrangements, and new challenges in asset management. Resolving these will require new types of analysis that were previously unnecessary or very rare. Collecting and processing information to facilitate these analyses presents a significant new burden for DNOs. However, methods are available that may assist DNOs in the collection of information. Three such methods are discussed here: a structured approach to fundamental information requirements; standard formats; and generic device types or category descriptions. Examples are provided of how DNOs would use the information collected to analyse DG connection and operation. Effective management of information will enable DNOs to characterise DG and perform the analyses necessary to ensure that a reliable and high-quality electricity supply is maintained.