Experimental Verification of Torsional Natural Frequencies

Back-up generators and harmonic levels

Large Load Projects staging, Phase 1 1,200 MW allocation, Phase 2 consultation

Example of state-level resource planning action driven by data-center/AI load growth (Georgia)

Instantaneous Frequency Estimation in Unbalanced Systems Using Affine Differential Geometry

Quasi Steady-State Frequency

2G-3 Casale (ESCR/CSCR)

Powering On with Grid-Forming Inverters

Solar Integration Basics

Grid Modernization Strategy (2024)

UNIFI Consortium

UNIFI specifications (NREL 89269)

Mitigating Data Center Harmonics

SSCI Detailed Evaluation Using PSCAD (Tech Memo)

PSCAD Model Test Checklist (practical EMT quality checks, phase-jump, limits, usability)

MOD-026-2 Technical Summary and Compliance Implications

MOD-026-2 Goes Live — April 1, 2026 Effective Date

MOD-026-2: What Generator Owners Need to Know About the New EMT Modeling Requirements

New NERC Standards Advance IBR Modeling and Validation

ASSESSING RISK OF SUB-SYNCHRONOUS OSCILLATIONS

Model User Guide for Generic Renewable Energy System Models (second-generation RES models)

Sub-Synchronous Control Instability Studies: IBRWG (Oct 11, 2024)

NOGRR 245 overview

Lessons learned from NOGRR 245

ERCOT EMT/model quality materials

Panhandle System Strength Study (Feb 23, 2016)

Dynamics Working Group Procedure Manual, Rev. 24 (Sections 3.1.5–3.1.7); PGRR-109 overlays; PSCAD submittal & DMView guidance

Recap of PGRR-109 and DMView comparison feature; PSCAD templates; overlay expectations

Nodal Operating Guide (frequency & voltage ride-through sections, incl. updates)

Resource Integration / Modeling home (links to models, templates, RIOO-IS guidance)

PSCAD Model Submittal Guideline—inner loop fidelity and embedded code preference

PGRR-109 issue page & effective materials (pre-commissioning “as-built” model & overlay requirements)

QSA final checklist highlighting PSCAD/PSS®E overlays and associated artifacts

2024–2025 IBR ride-through events and lessons learned; NOGRR-245 linkages

Model Quality Tests and Voltage Ride-Through testing practices informing regional MQTs

ERCOT Large Load Integration resource hub (≥75 MW reference; templates/forms) and related staged effective dates for large-load process updates

RoCoF and Phase Angle Jump Measurement Discussion

South Texas Wind Events: November 2023 - January 2024

Diagnosis and Mitigation of Observed Oscillations in IBRs (2024)

ESIG workshop slides on P2800.2 conformity assessment

Grid-Forming Technology in Energy Systems Integration

Generic renewable models (REGC_A/REEC/REPC) reference pages and parameter context

Generic models for wind power plants and Type-3/4 structure (modules and mappings)

Type-3 wind generic model structure and module roles (REGC_A, REEC, WTGTRQ, etc.)

Federal Register: Reliability Standards to Address Inverter-Based Resources (Order No. 901)

FERC: Approves grid reliability standards applicable to inverter-based generators

Order No. 2023 (Final Rule) and guidance on modeling/validation and attestation

Reliability Standards to Address Inverter-Based Resources, Order No. 901

Order 909: Approval of PRC-029-1 and PRC-030-1 Inverter-Based Resource Reliability Standards

February 19, 2026 Commission Meeting — Summaries of Actions Taken

Order No. 901: Reliability Standards for Inverter-Based Resources — Final Rule

Joint Staff Technical Conference on Inverter-Based Resources

AI poses threat to North American electricity grid, watchdog warns

Sub-Synchronous Torsional Interaction Analysis

Torsional Stress Relay

IEC 61000-4-30:2015 Power Quality Measurement Methods

IEEE 2800-2022 overview (NERC/EPRI webinar deck)

IEEE 2800-2022

IEEE 2800 overview and implementation context for IBR performance requirements

Estimating and Interpreting the Instantaneous Frequency of a Signal - Part 1

Using Differential Geometry to Revisit the Paradoxes of the Instantaneous Frequency

An Iterative Technique for Fast and Accurate Measurement of Power System Frequency

Enhanced Interpolated-DFT for Synchrophasor Estimation in FPGAs

Frequency Tracking in Power Networks in the Presence of Harmonics

Iterative-Interpolated DFT for Synchrophasor Estimation: A Single Algorithm for P- and M-Class Compliant PMUs

IEEE SA: P2800.2 project page

Analysis and Mitigation of SSCI with Series-Compensated Lines (2023)

Field Torsional Vibration Measurement

Background & Rationale (2023)

MISO IPWG: IBR performance, modeling & conformance; PAC-2024-2

Grid-Forming BESS Capabilities, Performance, and Requirements

IEEE-2800 adoption materials

IBR performance, modeling, and conformance program; proposed IBR modeling requirements, parameter verification, and timelines (PAC-2024-2; IPWG/PAC records)

Load interconnection guidance/whitepaper and related BPM materials

MRO summary of NERC’s Aggregated Report on IBR model quality deficiencies

Sub-Synchronous Oscillation Overview (2025 EATT)

Inverter-Based Resource Performance Issues: Public Report (2023) and Alerts

NERC PRC-028-1

NERC PRC-029-1

NERC PRC-030-1

Integrating Inverter-Based Resources into Low Short-Circuit Strength Systems

Grid-Forming Technology

Reliability Guideline—Recommended Practices for EMT Studies for BPS-Connected IBRs (model requirements & verification)

Level-2 Industry Recommendation on IBR Model Quality Deficiencies and aggregated analyses of modeling issues

FAC-002-4 (Facility Interconnection Requirements) and MOD-032-1 (Data for Power System Modeling)

Inverter-Based Resource Performance: Issues and Recommendations

Odessa Disturbance Event Reports

IBR Registration Initiative Program Updates

MOD-026-2: Verification of Models and Data for Generator Excitation Control System or Plant Volt/VAr Control Functions

August 16, 2021 Southwest Disturbance — Preliminary Report

State of Reliability 2024

August 16, 2021 Odessa Disturbance Report: Texas Events — Inverter-Based Resource Performance

Order 901 IBR Reliability Standards Roadmap and Milestone Framework

2023 Annual Report on IBR Performance Events

PRC-029-1: Frequency and Voltage Ride-Through Requirements for Inverter-Based Resources

Project 2023-01: EOP-004 IBR Event Reporting

Meeting notes on 500 MW threshold discussion

NERC Reliability Guideline: EMT modeling & simulations

NERC mapping of FERC Order 901 directives to standards projects

Research Roadmap on Grid-Forming Inverters