Sustaining Accurate Facility Ratings: Best Practices from ERO Enterprise

In the evolving landscape of power system reliability, ensuring accurate facility ratings is not just a regulatory requirement—it's a foundational pillar for operational integrity, grid stability, and public trust. The ERO Enterprise Facility Ratings Report outlines a comprehensive set of best practices, thematic challenges, and field-proven solutions to help utilities, generator owners, transmission operators, and engineering firms like Keentel Engineering uphold the highest standards in NERC compliance.

This blog breaks down the critical insights from the ERO Enterprise’s May 2023 Facility Ratings Themes Report, providing actionable guidance for utilities and engineering teams.

Why Accurate Facility Ratings Matter

Facility ratings form the bedrock for planning, operations, loadability, modeling, and regulatory compliance. Inaccurate or outdated ratings can cause

• Mismatches in EMS or planning models
• Underreported bottlenecks
• Violations of NERC reliability standards
• Compromised public and grid safety
  

These ratings do not exist in isolation. They directly influence operational decisions, system planning, field configuration management, and ambient-adjusted ratings (e.g., per FERC Order 881).

The Four Key Themes Identified by ERO Enterprise

Theme 1: Lack of Awareness

One of the most frequent contributors to inaccurate ratings is a lack of awareness and ownership of the facility ratings program.

Observations

• Many entities lack clarity on program ownership and roles.
• Poorly defined controls and documentation processes.
• Cross-departmental training is often missing.
  

Best Practices

• Assign a Facility Ratings Program Sponsor with authority.
• Clearly define roles and internal controls.
• Train all staff and contractors involved in the rating process.
• Use field verification with photographic evidence.
• Establish a corrective action process for ongoing quality improvement.
  

Theme 2: Inadequate Asset and Data Management

Outdated or fragmented asset data systems contribute heavily to rating inaccuracies.

Observations

• Multiple uncoordinated databases.
• Lack of communication between engineering, field, and compliance teams.
• Data errors from manual entry or untrained staff.
  

Best Practices

• Use a Single Official Master Database.
• Document workflows for data entry, verification, and retrieval.
• Apply peer reviews and access control to avoid data manipulation.
• Train contractors and internal staff on asset tracking protocols.
  

Theme 3: Inadequate Change Management

From emergency restoration to M&A activity, unrecorded or undocumented changes can corrupt the accuracy of facility ratings.

Observations

• Poor coordination between departments post-maintenance.
• Ratings databases not updated after equipment changes.
• Local field changes (e.g., redlines) often overlooked.
  

Best Practices

• Develop a change checklist and approval workflow.
• Conduct periodic field walk-downs.
• Require QA/QC reviews after any equipment change.
• Use a flowchart to govern change reporting and update sequences.
  

Theme 4: Inconsistent Rating Methodologies

Observations

• Entities use multiple rating methods inconsistently.
• Staff are unsure how to apply methodology to various assets.
• Jointly-owned facilities present coordination challenges.
  

Best Practices

• Develop and maintain a detailed, consistent rating methodology.
• Apply the same method across equipment classes.
• Train all departments on methodology application.
• Coordinate with other owners for joint facility alignment.
  

Human Factors: The Role of Change Leadership

A key insight from the report is that people—not just processes—are at the heart of sustaining accurate ratings.

Key Change Challenges

• Employees naturally resist change (a psychological phenomenon called anaklesis).
• Six emotional stages of change: Avoidance, Betrayal, Resistance, Uncertainty, Practice, Take On.
• Misalignment between technical management and human engagement.

Managerial Leadership Tools

• Assess emotional readiness for change.
• Provide context (why the change matters).
• Offer best advice with empathy.
• Follow the ABC³ approach: Always Be Communicating, Closing, and Caring.

These soft skills are crucial for ensuring that even the best technical protocols are followed consistently.

Sustaining Your Facility Ratings Program

Creating a sustainable program means embedding controls into every phase of the lifecycle.

Foundational Elements

1. Appoint a ratings sponsor and process owner.
2. Define your program’s scope, components, and workflow.
3. Establish a verified baseline for equipment and ratings.
4. Periodically validate accuracy.
5. Apply human performance tools to build long-term accountability.
   

Integrating Technology

• Use smart asset management systems for real-time data logging.
• Integrate facility rating updates into digital twin platforms.
• Conduct field verification using mobile GIS or AR devices.
  

Facility Walkdowns: The Ground-Level View

The ERO emphasizes that field verification ("walkdowns") is a vital practice to ensure:

• Data integrity of physical assets.
• Identification of components not captured in legacy records.
• Real-time updates to baseline data.
  

Tips for Walkdowns

• Identify all current-carrying components.
• Include tap changers, bus links, expansion joints.
• Note test links, isolation switches, and cooling configurations.
• Look for differences between "as-designed" and "as-installed" assets.
  

Mitigation and Root Cause Analysis

Regulators are shifting toward a more proactive mitigation model, which includes:

• Holistic controls (people, process, technology)
• Risk-based field prioritization
• Consolidated platforms for asset and rating management
• Root cause analysis: from isolated errors to systemic process flaws
  

Implications for Utilities and Engineering Partners

For engineering service providers like Keentel Engineering, the insights from this report are transformative:

• Strengthen QA/QC for design-build and retrofit projects.
• Integrate ERO best practices into SCADA, EMS, and relay settings reviews.
• Ensure that your facility designs align with clients’ FAC-008 compliance obligations.
• Partner with asset owners to create digital rating models for substations and lines.
  

Conclusion

Facility ratings represent far more than a numerical value—they are a reflection of organizational discipline, engineering accuracy, and regulatory accountability. The themes and best practices outlined by the ERO Enterprise should guide every utility and consulting partner toward a more reliable and resilient grid.

At Keentel Engineering, we offer comprehensive services to support your facility rating program—from model development and field audits to database design and NERC compliance consulting. Connect with us to elevate the reliability of your infrastructure.

Frequently Asked Questions (FAQ)

Ready to Improve Your Facility Ratings Program?

Whether you need help with field verification, change management protocols, or aligning with FAC-008 and FERC Order 881, Keentel Engineering is ready to support your compliance journey.

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