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Traditional interconnection processes evaluate the impacts of a given distributed generator to safety, reliability, and power quality after an interconnection request is received. This concept note introduces “Integrated Distribution Planning,” an alternative, emerging methodology designed to enable distributed PV. In the Integrated Distributed Planning concept, utilities or distribution system operators proactively study the hosting capacity of distribution circuits, the ability of these distribution circuits to accommodate growth in distributed generation, and any necessary infrastructure upgrades, all in advance of receiving interconnection requests from generators.
Located in Integration Topics / Distributed Generation / Distributed Generation folder
Germany leads the world in deployment of distributed PV, with PV generation contributing approximately 40% of peak power demand during some hours of the year. This article outlines the impacts of high PV deployment in Germany on grid stability and power flows in the transmission and distribution system. It also highlights practical solutions that Germany has implemented to support frequency and voltage control and reduce congestion, and suggests new concepts for voltage-control strategies.
Located in Integration Topics / Distributed Generation / Distributed Generation folder
Standard IEEE 1547 is an example of an interconnection standard (commonly used in North American power systems) providing technical rules for interconnecting distributed generation resources with the electric grid. The standard’s guide introduces the background and rationale for the technical requirements, facilitates use of the standard by characterizing distributed resource technologies and related interconnection issues, and provides approaches and information to support interconnection and implementation. The standard was updated in 2014 with an amendment providing existing information on voltage, voltage regulation, and frequency.
Located in Integration Topics / Distributed Generation / Distributed Generation folder
UL 1741 provides certification requirements for distributed generator equipment that operates according to the parameters established in IEEE 1547. The standard is used together with IEEE 1547 to provide comprehensive requirements for distributed generation projects.
Located in Integration Topics / Distributed Generation / Distributed Generation folder
The U.S. state of Minnesota has enacted legislation that allows investor-owned utilities to use a Value of Solar tariff as an alternative to net metering for distributed PV. This document details the methodology participating utilities will use to calculate the Value of Solar tariff in order to account for several values of distributed PV (including energy and its delivery, generation and transmission capacity, transmission and distribution losses, and environmental value). The methodology includes detailed example calculations for each step.
Located in Integration Topics / Distributed Generation / Distributed Generation folder
Based on a series of interviews with thirteen operating entities in the Western Interconnection of the United States, this report summarizes practices, lessons learned, and priorities related to the implementation of wind and solar forecasting. The operating entities provided insights regarding cost assignment, forecasting accuracy and uses, data collection, curtailment and outages, probabilistic forecasting, distributed solar production, control room integration, and staff training, among other topics.
Located in Integration Topics / Forecasting / Forecasting folder
New Recorded Webinar: Best Practices for Grid Codes for Renewable Energy Generators
A recording of the webinar "Best Practices for Grid Codes for Renewable Energy Generators" has been published. The webinar explains in detail the purpose and key elements of grid codes, explores the evolving challenges to the grid that have prompted new and more rigorous grid codes and highlights the development of grid codes within the United States and internationally.
Located in News and Events
The Government of Mexico understands that distributed generation can contribute to meeting its greenhouse gas emissions reduction and clean energy targets. This report summarizes how analysis using NREL’s System Advisory Model (SAM) informed the government of Mexico’s distributed generation public policymaking process. Each case study within the report highlights important contextual background, the analysis process, results, and impacts.
Located in Topics & Resources / Regulation & Public Policy / Regulation & Public Policy folder
El Gobierno de Mexico reconoce el potencial de la generacion distribuida limpia (GD) para contribuir significativamente a los objetivos de energia limpia y reduccion de emisiones de Mexico. Sin embargo, aun quedan preguntas importantes sobre como valorar justamente a GD y fomentar un crecimiento de mercado inclusivo y equitativo que sea beneficioso para los inversionistas, los contribuyentes de electricidad, los distribuidores de electricidad y la sociedad. El Laboratorio Nacional de Energia Renovable (NREL) de los EE. UU. se ha asociado con instituciones del sector energetico y partes interesadas en Mexico para proporcionar apoyo analitico oportuno y experiencia para ayudar a informar los procesos de formulacion de politicas sobre GD limpio.
Located in Topics & Resources / Regulation & Public Policy / Regulation & Public Policy folder
Mexico's energy reform will have far-reaching effects on how people produce and consume electricity in the country. Market liberalization will open the door to an increasing number of options for Mexican residential, commercial, and industrial consumers to deploy distributed generation (DG). Distributed generation is an option for consumers who want to produce their own electricity and provide electricity services to others. This report seeks to provide guidance to Mexican officials on designing economic and regulatory policies for DG.
Located in Topics & Resources / Regulation & Public Policy / Regulation & Public Policy folder
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