This report summarizes a series of progress updates from the 2011-2015 time period for the Duke Energy Smart Grid Demonstration Host Site Project, which is a part of the Electric Power Research Institute’s (EPRI’s) multi-year Smart Grid Demonstration Initiative. The Duke Energy Demonstration Project focused on the integration of higher levels of distributed energy resources, such as energy storage, photovoltaic generation, demand response, and plug-in electric vehicles. In addition, Duke Energy developed and refined a communications architecture throughout the project using an open-standards communications node to transmit, aggregate, and manage data from Smart Grid devices on the grid and beyond the customer’s meter. In order to effectively and reliably manage the available resources, Duke Energy developed a distributed energy resource management system and demonstrated its capabilities within its Smart Grid test bed in Charlotte, North Carolina, called Envision Energy.
The EPRI initiative included core Smart Grid research and a number of large-scale Smart Grid projects with 23 funding utility members.
This report was designed to help utilities and other stakeholders understand emerging technologies and approaches to integrating distributed energy resources (DER) into the distribution grid at Duke Energy. The project team documented each project conducted at the Duke Energy Smart Grid Demonstration Host Site to show the initial planning phases of the project, the goals of each experiment, the challenges and issues associated with the project, results, and the lessons learned. From these demonstration projects, Duke Energy developed business cases to support the viability of select demonstration projects that were deployed across Duke Energy as a part of this project.
The progress reports documented each of the Smart Grid projects at Duke Energy within the Envision Energy area and a few other pertinent projects in other parts of its service territory throughout the life of the overall project. This final report attempts to pull together the abundance of project material into one report with references to other documents as appropriate. The report provides an overview, timeline, evaluation plan, results, and conclusions for each of the projects, as well as the lessons learned on most of the projects.
This final update documents results from the demonstration projects. The report describes the baselines established for the project and compares them to the results throughout the initiative. The report also captures the experience of operations personnel and covers integration issues and lessons learned. Publishing the progress report multiple times during the project made it possible to capture timely information that may have been lost otherwise in a large multi-year project. Beyond documenting the results and lessons learned, the report also recorded, where appropriate, additional project and technological gaps that will need to be addressed in future research projects or demonstrations.
Applications, Values, and Use
The Duke Energy Smart Grid Demonstration Project was part of a larger EPRI multi-year collaborative initiative, with multiple utility participants focused on the integration of distributed energy resources. EPRI provided the expertise for this industry collaboration effort, thus bringing significant value to the members while avoiding duplication of work. This report describes the overall project plan as well as sub-project plans that Duke Energy used to address the challenges of DER integration, efficiency of distribution systems, integration of management systems, and other cutting-edge technologies.