Updates & Events
Info for members about events, updates, and results
2026 Engagement Opportunities
| Meeting | Date | Location | Contact | Information |
|---|---|---|---|---|
| Transmission and Substations Task Force Meeting | February 9-12 | Charlotte, NC, EPRI Offices | Tom Zhao | Meeting Information |
| EPRI Kick Off Webcast: High Voltage Direct Current Converter Stations and FACTS (P35.019, P36.008, P37.116) | March 6, 11:00 am - 12:00 pm ET | Webcast | Ram adapa | More information, coming soon |
| Transmission & Substations Advisory Meeting | March 30 - April 1 | Charlotte, NC, EPRI Offices | Tom Zhao | Meeting Information |
| EPRI R&D Project Update Webcast: Underground Transmission (P36) | 6/9/2026 - 1 to 2:30 PM ET | Webcast | Tom Zhao | More information, coming soon |
| Program 36 2026 Research Portfolio Rollout #1 | June 16, 1:00-2:30 pm ET | Webcast | Tom Zhao | More information, coming soon |
| EPRI R&D Project Update Webcast: High Voltage Direct Current Converter Stations and FACTS (P35.019, P36.008, P37.116) | June 5, 11:00 am -12:00 pm ET | Webcast | Ram adapa | More information, coming soon |
| Program 36 2026 Research Portfolio Rollout #2 | August 4, 1:00-2:30 pm ET | Webcast | Tom Zhao | More information, coming soon |
| EPRI End of Year Webcast: High Voltage Direct Current Converter Stations and FACTS (P35.019, P36.008, P37.116) | November 20, 11:00 am -12:00 pm ET | Webcast | Ram adapa | More information, coming soon |
2025 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 | Meeting Materials |
2026 Anticipated Deliverables
| Deliverable | Description | Date |
|---|---|---|
| Underground Transmission Education Workshops (report) | EPRI intends to hold educational workshops in conjunction with the Underground Transmission Task Force meetings, twice annually. Topics include design, construction, installation, operation, and maintenance of both extruded and laminar dielectric cable systems. Workshop proceedings will be made available. | December 2026 |
| EPRI Underground Transmission Systems Reference Book (The Green Book)—2026 Edition (report) | The EPRI Underground Transmission Systems Reference Book (the Green Book) is a desk and field compendium on the general principles involved in planning, design, manufacturing, installation, testing, operation, and maintenance of underground transmission cable systems. The project team continuously updates the Green Book, focusing on one or two sections each year. | December 2026 |
| EPRI Underground Transmission Reference Book Training Proceedings – 2026 Update (report) | Report contains training session proceedings in: - Underground Transmission Cable Systems - Pipe-Type Cable Systems - Extruded Cable Systems - Installation, Construction, and Operations & Maintenance | December 2026 |
| Increased Power Flow Guidebook (The Platinum Book)—2026 Edition (report) | This report will be continuously augmented with updated and additional materials on the state of the science and best practices for increasing and optimizing power flow through underground transmission cables and their associated circuit components. | December 2026 |
2025 Deliverables
| Product ID | Product Name | Item Type |
|---|---|---|
| 3002032865 | Underground Transmission Education Workshop Proceedings - 2025 Update |
Tech Update |
| 3002032877 | EPRI Underground Transmission Systems Reference Book (The Green Book) – 2025 Edition |
Tech Update |
| 3002032878 | EPRI Underground Transmission Systems Reference Book TrainingProceedings - 2025 Update |
Tech Update |
| 3002032786 | Increased Power Flow Guide Book (The Platinum Book) – 2025 Edition |
Tech Update |