Updates & Events
Task: Transmission & Distribution Wood Pole Fleet Management
Task Description: Collect & analyze industry wide wood pole performance data (e.g., inspection, replacement, demographic, corrective maintenance etc.) data to develop new analytics and metrics to better understand population useful life & the effect of variables such as species, original treatment type, environment, inspection providers, pole dimensions etc. Use results for data driven & analysis-based decisions – when to inspect, where to inspect, when to replace, retreatment, inspection efficacy etc.
Update:
- Gathered 10.9 million wood pole inspection records from 31 companies.
- Expanded analytics to include new data sources (weather and fuel models, geo-spatial information) to augment the understanding of industry wide wood pole performance.
- Efforts underway to understand:
- The mathematical relationship between pole serviceability and various such as species, original treatment type retreatment etc.
- How universal are the underlying relationships?
Task: Steel Structure Fleet Management
Task Description: Collect & analyze industry wide steel structure performance data (e.g., inspection, replacement, demographic data, soil testing results, corrective maintenance etc.) to develop new analytics and metrics to better understand the performance of steel structure & the effect of variables such age, land cover type, soil chemistry, environment etc. Use results for data driven & analysis-based decisions – when to inspect, where to inspect, when to replace etc.
Update:
- Obtained historical inspection & demographic data from two utilities.
- Developed preliminary data model to aid utilities in collecting & populating data from various sources in a consolidated manner.
- Developed preliminary analytical methodology & performance metrics.
- Looking for members to provide data to help advance research.
Task: Transmission Line Conductor & Shield Wire End of Life Model Development
Task Description: Collect industry wide conductor & shield wire data, for e.g., laboratory condition assessment results from field aged samples, replacement records, demographic records. Use the data to develop new analytics and metrics to better understand the survivability conductors & shield wires & the effect of variables such as conductor type, environment etc.
Update:
- Shield wire: Analyzed data received from one-member utility to better understand population survivability. Analysis was based on data gathered from two different approaches – forensic condition assessment results from laboratory testing and results obtained from live line (in-situ) inspections.
- Conductors: Analyzed data from two member utilities (age, grease condition, type, size, configuration, span vs. jumper, phase vs. shield-wire, location, environment) to better understand:
- Population survivability and end of life estimates
- Differences between core only and fully greased ACSR
- Influence of torsional and tensile testing on end of life estimates
- Work underway to gather new data from members and continue analysis.
- Launched supplemental project to aid collection and laboratory testing of field aged conductor and shield wire samples.
Task: New circuit & component level metrics
Task Description:
- Develop & test data model to collect inspection & maintenance records & associate them with the underlying component & circuit (span, structure etc.).
- Populate the data model with real world utility data to assess its applicability. Make changes based on experience.
- Develop new circuit & component level metrics to better understand circuit & component performance.
Update: - Developed a methodology to organize the raw data (demographic information e.g. material, age, component type etc., routine inspection records and corrective maintenance records) so that we can better understand the affected component, defect type and frequency for various circuits.
- Work underway to test the method using one utility’s data (10 years of historical maintenance and inspection records)
- Data model applicability
- Develop metrics e.g., defect type, frequency, severity etc.
Task: Overhead transmission line risk assessment framework
Task description: Develop a framework that utilizes results of the above-mentioned efforts & helps utilities gain a holistic view of transmission line risk
Update:
- Developed and published conceptual risk-based transmission line ranking approach that can be applied with readily available data.
- We are looking for funder utilities interested in piloting this approach.
Engagement Opportunities
Meeting | Scheduled Date |
Location |
Information |
---|---|---|---|
EPRI R&D Kick off Webcast: Substations Asset Analytics Research Topic | February 11, 11:00am - 12:00pm ET | Webcast | Meeting Material |
EPRI R&D Kick Off Webcast: Overhead & Underground Transmission Asset Analytics Research Topic | February 13, 11:00am - 12:00pm ET | Webcast | Meeting Material |
Transmission Asset Management Analytics Task Force - March 2025 | March 10-13 (In-person) / March17-20 (Virtual) | Charlotte, NC | Register Here |
EPRI Transmission Asset Management Analytics (Program 34) New Supplemental Launch Webcast | April 2 2:00pm - 3:00pm ET | Webcast | Webcast Information |
EPRI R&D Project Update Webcast: Substations Asset Analytics Research Topic (P34.002) | May 20 11:00am - 12:00pm ET | Webcast | Webcast Information |
EPRI R&D Project Update Webcast: Overhead & Underground Transmission Asset Analytics Research Topic (P34.003 & P34.004) | May 22 11:00am - 12:00pm ET | Webcast | Webcast Information |
Anticipated Deliverables
Deliverable | Date |
---|---|
Circuit Breaker Asset Management Analytics: Data Requirements, Family Groupings and Maintenance Taxonomy (Technical Update) | December 2025 |
Actionable Insights Based on Analysis of Industrywide Circuit Breaker Data & Their Application in Procurement, Maintenance and Replacement Decisions (Technical Brief, Webcast and Results on TRC) | December 2025 |
Computer Assisted Analytics to Categorize Circuit Breaker Maintenance Work Orders (Analytical Tool & Application Guide) | December 2025 |
Circuit Breaker Risk Ranking Framework (Software & Application Guide) | December 2025 |
Using Relay Event Data to Better Understand Breaker Operating Performance and Patterns (Technical Update & Webcast) | December 2025 |
Actionable Insights Based on Analysis of Industrywide Power Transformer Data & Their Application in Procurement, Maintenance and Replacement Decisions (Technical Brief, Webcast and Results on TRC) | December 2025 |
Power Transformer Expert System Software (Software & Application Guide) | December 2025 |
Advanced Analytics for Power Transformer Condition Assessment (Technical Brief & Webcast) | December 2025 |
Actionable Insights Based on Analysis of Industrywide Substation Battery Data & Their Application in Maintenance and Replacement Decisions (Technical Brief, Webcast and Results on TRC) | December 2025 |
Evaluating the Efficacy of Substation Battery Monitoring to Help Utilities Reduce Response Time & Drive Condition Based Maintenance (Technical Brief & Webcast) | December 2025 |
Asset Performance Metrics for Disconnect Switches and Capacitor Banks (Technical Update) | December 2025 |
Protection and Control System Asset Management Metrics (Technical Update) | December 2025 |
Development & Application of Analytical Approaches to Aid Allocation of Resources Across Substation Assets (Technical Update & Utility Information Exchange) | December 2025 |
Developing an Analytical Framework to Capture Expert Knowledge that Can Aid Field Personnel in Maintenance and Troubleshooting (Technical Update & Webcasts) | December 2025 |
Application of Natural Language Processing to Improve Substations Asset Management and Maintenance (Technical Update & Webcasts) | December 2025 |
2024 Deliverables
Product ID# | Name |
Type |
---|---|---|
3002029479 | Overhead Transmission Asset Management Analytics – Data Requirements |
Technical Update |
3002029480 | Transmission Wood Pole Fleet Management |
Technical Update |
3002029484 | Transmission Line Risk Ranking Framework Development and Demonstration |
Technical Update |
3002029485 | Actionable Insights from Analysis of Overhead Conductor and Shield Wire Data |
Technical Brief |
3002029486 | Steel Structure Fleet Management |
Technical Update |
3002029487 | Leveraging Geo-spatial Information in Overhead Transmission Asset Management |
Technical Brief |
For more information, contact: Bhavin Desai, Sr. Program Manager, (704) 804-1188,