Modules · Compliance studies · Module 001
PRC-028-1 Disturbance Monitoring and Reporting Readiness
Sequence-of-events, fault and dynamic disturbance recording requirements assessed against the plant's own files, with equipment gaps, data requests and the readiness report produced from the record.
About this module
What this module covers.
The new PRC-028-1 standard establishes disturbance monitoring and reporting requirements specifically for Generator Owners (GOs) of inverter-based resources (IBRs) on the Bulk Electric System. The standard requires GOs to install and maintain equipment capable of recording and storing key data, such as Sequence of Event Recording (SER), Fault Recording (FR), and continuous Dynamic Disturbance Recording (DDR) at critical points including collector bus feeders, high-side of main power transformers, and shunt dynamic reactive devices. GOs must ensure the collection of specific electrical quantities such as phase-to-neutral voltages, phase currents, real and reactive power, and frequency at these locations. The standard also mandates evidence of proper data recording, timely restoration of any failed recording capability, or submission and implementation of a Corrective Action Plan if restoration is delayed. Compliance deadlines require 50% of applicable assets to meet these requirements within three years of the effective date, and all assets by January 1, 2030.
This module covers digitizing the assessment and compilation of compliance documentation to support compliance preparedness for NERC PRC-028-1.
Module: 001
Kind: Compliance studies
Governing body: NERC
Applies to: Operating plants
Typical time: About one week, all in
Dashboard capabilities
- Automated Compliance Workflow for PRC-028-1
Support services
What GridStrong does inside this module.
Task 1: Develop Compliance Procedure
- Create an audit-ready compliance procedure for meeting PRC-028-1 requirements. This includes:
- Identifying applicable assets, functions, SMEs, roles, responsibilities, and ownership
- Determining specific actions and evidence to demonstrate compliance with specific requirements and measures
- Conducting a gap analysis comparing current practices versus the new requirement, identifying missing processes, incomplete documentation, any staff training needed, etc.
- Developing clear step-by-step procedures for PRC-028-1 that align with internal controls and documentation policies
- Establishing compliance timelines that align with standard implementation deadlines
- Defining and determining specific compliance evidence per site
Task 2: Implementation at each plant
- Create an inventory of all disturbance monitoring equipment (DME) in the plant.
- Review DME specifications, data retention, and reporting capabilities against requirements set forth in PRC-028-1 standard.
- Identify deficiencies of existing DME in meeting the PRC-028-1 requirements such as locations, measurements, data resolution, or reporting criteria.
- Propose new equipment (or modifications to existing equipment, if feasible) that can easily integrate into existing infrastructure using current CTs, PTs, or communication systems to meet the standard requirements.
- Create timelines for phased implementation (e.g., 50% compliance by April 2028, full compliance by January 2030).
Final deliverables
- Task 1: Compliance procedure for NERC PRC-028-1.
- Task 2: Compliance report per IBR plant documenting the assessment and next steps for PRC-028-1 compliance, in addition to a proposed compliance timeline to meet implementation plan.
Assumptions and considerations
How the scope is bounded.
Other modules
Every module runs on the same record.
Run this module on one site.
Tell us the plant and the deadline. An engineer confirms the inputs, the schedule and what the Dashboard needs from you.