Updates & Events
Engagement Opportunities
| Meeting | Scheduled Date | Location | Information |
|---|---|---|---|
| Underground Transmission Task Force - March 2025 | March 10-13 (In Person) : March 17-20 (Virtual) | Charlotte, NC | Meeting Materials |
| Underground Transmission (Program 36) New Supplemental Launch Webcast | March 31 1:00pm - 2:00pm ET | Webcast | Meeting Materials |
| EPRI R&D Project Update Webcast: Underground Transmission (P36) | June 10 1:00pm - 2:30pm ET | Webcast | Meeting Materials |
| Underground Transmission 2025 ARP Rollout #1 | June 17 1:00pm - 2:00pm ET | Webcast | Meeting Materials |
| EPRI R&D Project Update Webcast: High Voltage Direct Current Converter Stations and FACTS (P35.019, P36.008, P37.116) | June 27 11:00am - 12:00pm ET | Webcast | Meeting Materials |
| Underground Transmission 2025 ARP Rollout #2 | August 5 1:00pm - 2:30pm ET | Webcast | Meeting Materials |
| Underground Transmission Task Force | August 18-22 (In Person)/August 25-29 (Virtual) | Charlotte, NC | Meeting Materials |
| EPRI End of Year Webcast: High Voltage Direct Current Converter Stations and FACTS (P35.019, P36.008, P37.116) | November 21 8:00am - 9:00am PT | Webcast |
2026 Anticipated Deliverables
| Deliverable | Description | Date |
|---|---|---|
| Life Evaluation and Management of Laminar Dielectric CableSystems (reports) | Volume 1: Introduction and Approach. This task describes the EPRI general approach in life evaluation and management of laminar dielectric cable systems. | December 2026 |
| Volume 2: Evaluation and Documentation of Vintage Pipe-TypeCable Performance and Experience. This task enhances the vintage guide todocument changes in component materials, design, manufacturing, and other known issues of pipe-type cable systems. | December 2026 | |
| Volume 3: EPRI Guide for Testing Insulating Paper and Fluid. This task is a multi-year effort to create an up-to-date guide to test and analyze insulating paper and fluid of laminar dielectric cable systems to assess insulation and system conditions. This report includes results from tests and case studies. | December 2026 | |
| Volume 4: EPRI Dissolved Gas Analysis Guide for High-Voltage Cables. This task continues prior EPRI research to create a comprehensive dissolved gas analysis guide to assess conditions of laminar dielectric cable systems. This report also includes example test results and case studies. | December 2026 | |
| Volume 5: Best Practices for High-Pressure Fluid-Filled(HPFF) Pipe-Type Cable Pressurization Plant Upgrades. This task provides operating principles for HPFF cable pumping plants and a description of the many factors to consider when evaluating pumping plants for upgrades or replacements. | December 2026 | |
| Volume 6: Pressurization Procedures for High-PressureFluid-Filled and High-Pressure Gas-Filled Cable Systems. This task describes research into a variety of repressurization and depressurization procedures for different cable constructions and offers recommendations. | December 2026 | |
| Pipe-Type CableSystem Buried Steel Pipe Corrosion (reports) | The task describes fundamentals and practices of pipe-type cable system buried steel pipe corrosion, performs various tests at EPRI corrosion test facilities, and applies various detection techniques to investigate their effectiveness. The task also studies pipe coating degradation as a function of coating types, pipe installation environments, and stray current conditions. This task evaluates and characterizes new techniques for condition assessment and diagnostics with emphasis on techniques that provide localization information on potential defects or degradation and continuous online monitoring. Techniques under investigation include prototype testing of test stations for buried steel pipe corrosion monitoring. Several volumes of documents are included: 1. Introduction, Fundamentals, and Practices; 2. Pipe Test Facility and Results; 3. Extruded Coating Test Rig and Results; 4. Corrosion Monitoring System Development and Testing; and 5. Field Assessment Approach and Case Studies. | December 2026 |
| Failure Root Cause Study of Laminar Dielectric Cables (reports) | EPRI has performed comprehensive research in developing an approach for life management of cable systems, including cables, terminations, joints, pressurizing plants, and others. This task continues such investigations and performs further laboratory experiments to better understand laminar dielectric cable aging and failure mechanisms. This task publishes results in separate volumes for each completed investigation. | December 2026 |
2025 Deliverables
| Product ID | Product Name | Item Type |
|---|---|---|
| 3002032851 | Pipe-type Cable System Buried Steel Pipe Corrosion Volume 1: Introduction, Fundamentals, and Practices |
Tech Update |
| 3002032852 | Pipe-type Cable System Buried Steel Pipe Corrosion Volume 2: Pipe Test Facility and Results |
Tech Update |
| 3002032853 | Pipe-type Cable System Buried Steel Pipe Corrosion Volume 3: Extruded Coating Test Rig and Results |
Tech Update |
| 3002032854 | Pipe-type Cable System Buried Steel Pipe Corrosion Volume 4: Corrosion Monitoring System Development and Testing |
Tech Update |
| 3002032855 | Pipe-type Cable System Buried Steel Pipe Corrosion Volume 5: Field Assessment Approach and Case Studies |
Tech Update |
| 3002032856 | Life Evaluation and Management of Laminar Dielectric Cable Systems Volume 1: Introduction and Approach |
Tech Update |
| 3002032857 | Life Evaluation and Management of Laminar Dielectric Cable Systems Volume 2: Evaluation and Documentation of Vintage Pipe-type Cable Performance and Experience – 2025 Update |
Tech Update |
| 3002032858 | Life Evaluation and Management of Laminar Dielectric Cable Systems Volume 3: EPRI Guide for Testing Insulating Paper and Fluid – 2025 Update |
Tech Update |
| 3002032859 | Life Evaluation and Management of Laminar Dielectric Cable Systems Volume 4: EPRI Dissolved Gas Analysis Guide for High-Voltage Cables – 2025 Update |
Tech Update |
| 3002032860 | Life Evaluation and Management of Laminar Dielectric Cable Systems Volume 5: Best Practices for High-Pressure Fluid-Filled (HPFF) Pipe-Type Cable Pressurization Plant Upgrades - 2025 Update |
Tech Update |
| 3002032861 | Life Evaluation and Management of Laminar Dielectric Cable Systems Volume 6: Pressurization Procedures for High-Pressure Fluid-Filled and High-Pressure Gas-Filled Cable Systems: 2025 Update |
Tech Update |
| 3002032862 | Failure Root Cause Study of Laminar Dielectric Cables Volume 1: Impact of Fluid Freezes on Energized High-Pressure Fluid-Filled Pipe-Type Cable Insulation - 2025 Update |
Tech Update |
| 3002032863 | Failure Root Cause Study of Laminar Dielectric Cables Volume 2: Utility Experience of In-Pipe Thermo-Mechanical Bending (TMB) Events on Pipe-Type Cables - 2025 Update |
Tech Update |
| 3002032864 | Failure Root Cause Study of Laminar Dielectric Cables Volume 3: Evaluation of Three Laminated Paper Polypropylene (LPP) Cable Pieces with One Containing Failure - 2025 Update |
Tech Update |