FERC: Federal Energy Regulatory Commission (US regulator)

NERC: North American Electric Reliability Corporation (sets reliability standards)

ISO: Independent System Operator (Manages the flow of electricity in a region)

RTO: Regional Transmission Organization (Similar to an ISO, coordinates transmission across a wider region)

TSO: Transmission System Operator (General term for the entity managing the transmission grid)

DSO: Distribution System Operator (Manages the local distribution network)

BA: Balancing Authority (Maintains generation/load balance within its area)

IOU: Investor-Owned Utility (Private, for-profit utility)

EIA: Energy Information Administration (US data and analysis agency)

PJM: Ohio’s RTO

PUCO: Public Utility Commission of Ohio

OPSB: Ohio Power Siting Board

VPP: Virtual Power Plant

DER: Distributed Energy Resource

DERMS: Distributed Energy Resource Management System

GETS: Grid Enhancing Technologies

IBR: Inverter Based Resource