An architecture for a distributed smart grid registry system

The growing dissemination of distributed energy resources with steadily changing power flows in combination with the rising demand for electricity leads to increasing problems in grid management. Planning and managing these resources with information and communication technology as well as automation technology for optimal operational planning while maintaining the system´s security and stability is one of the key challenges in the smart grid. In order to enable these volatile resources to offer their capabilities to various actors in open energy markets, a platform for standardized information exchange is necessary. In this paper, we argue that a distributed smart grid registry system will address these needs. An architecture is presented that enables an adaptive system expansion for the growing number of distributed energy resources and actors. Controllers of these energy resources can provide their capabilities, described as standardized energy services to smart grid actors such as aggregators. The system will allow those aggregators to integrate these often fluctuating resources into their business processes. Thus, the planning level of the electricity grid will increase which leads to improved system stability, and better management of the grid constraints.