Tag Archives: Distributed energy resources (DER)
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Cyber Security Implications for an Integrated Grid
This white paper examines security challenges related to growing grid-connected distributed energy resources, including electric vehicle charging infrastructure and microgrids.
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Understanding DERMS
DERMS, or Distributed Energy Resources Management Systems, are new types of software and communication systems that manage distributed energy resources such as solar photovoltaic and battery storage systems. This whitepaper discusses numerous aspects of DERMS, including purpose, core functions, relevant standards, relationship with utility Distribution Management Systems (DMS), utility DERMS projects, and next steps for […]
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Update on Hydrazine Alternatives for Pressurized Water Reactor (PWR) Secondary Chemistry Control: PWR Chemistry Technical Strategy Group Report
Operators of pressurized water nuclear reactors use hydrazine for oxygen control in the secondary water system. For decades, they have sought a substitute that is as effective as hydrazine while less toxic. This report examines available information on hydrazine alternatives, toxicity, chemical properties, and plant trials.
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A Guidebook to Centralized, Distributed, and Decentralized Intelligence
This research examines how distribution system architectures and applications impact requirements for communication networks.
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Structuring Distribution Management Systems: DMS Applications for Accommodating High Penetrations of Distributed Energy Resources and Microgrids
Effective management of distribution grids requires integration among distribution management systems, distributed energy resources, and microgrids. Researchers developed an architecture for an integrated system (including functions, communications, control, and interoperability) and identified gaps for integration.
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Changing Utility Cost Pathways Amid Rising Deployment of Distributed Energy Resources
Increasing distributed energy resources in utility portfolios are expected to change electricity costs. Drawing on publicly available data, this white paper examines how costs change over time and as a result of resource mix, utility structure, and other factors. The analysis is intended to inform utilities, regulators, and policy makers as they consider cost recovery […]
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Defining a Roadmap for Successful Implementation of a Hosting Capacity Method for New York State
Effective, efficient evaluation of the grid impacts of distributed energy resources is a necessary aspect of distribution planning today. This report defines a method for New York State to analyze hosting capacity—the number and kilowatt capacity of distributed energy resources that distribution feeders can accommodate without adverse impacts to the grid’s power quality and reliability […]
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Integration of Hosting Capacity Analysis into Distribution Planning Tools
With more distributed energy resources connected to the distribution system, the industry needs methods to plan for and integrate these resources. EPRI has developed such methods and is working with utilities and vendors to implement them with existing distribution planning tools and data that most distribution planners have on hand.
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Advanced Distribution Management System with Distributed Energy Resources Volt/VAR
This report details EPRI work to design and test an algorithm for optimization of Volt/VAR&mdasha smart inverter function that allows distributed energy resources to help maintain acceptable voltage along a feeder under various grid operating conditions. It can monitor and control smart inverter–connected distributed energy resources.
