Through DOE/NREL and industry support of Institute of Electrical and Electronics Engineers (IEEE) standards development, the IEEE 1547 series of standards has helped shape the way utilities and other businesses have worked together to realize increasing amounts of DER interconnected. . Through DOE/NREL and industry support of Institute of Electrical and Electronics Engineers (IEEE) standards development, the IEEE 1547 series of standards has helped shape the way utilities and other businesses have worked together to realize increasing amounts of DER interconnected. . Through DOE/NREL and industry support of Institute of Electrical and Electronics Engineers (IEEE) standards development, the IEEE 1547 series of standards has helped shape the way utilities and other businesses have worked together to realize increasing amounts of DER interconnected with the. . Interconnection standards define how a distributed generation system, such as solar photovoltaics (PVs), can connect to the grid. In some areas of the United States, the interconnection process lacks consistent parameters and procedures for connecting to the grid or is unnecessarily complex. This. . NLR provides strategic leadership and technical expertise in the development of standards and codes to improve the integration, interconnection, and interoperability of electric generation and storage technologies. Coordinated, consistent, interconnection. . The following frequently asked questions and answers are a compendium of existing statutes, rules and National Electrical Code (NEC) provisions that are applicable to all electrical installations, with a special emphasis related to the installation of solar photovoltaic systems and energy storage. . “Distributed Photovoltaic” or “DPV” refers to distributed photovoltaic generation systems installed behind the customer meter for self-supply, including where authorised, paired photovoltaic-plus-battery energy storage systems (PV+BESS). “Energy Net Metering” means any billing, settlement, or. .