Updates & Events
Project Tasks
Below is a graphic of all tasks currently included as part of this project. It is important to note that it is not possible to prioritize every task each year. Some tasks are long term efforts that result in a deliverable after several years, while some are short term and have deliverables during the year they are focused on. A brief task description for each is included in the carousel. The ratings team welcomes member input on tasks that should be added, removed, or be prioritized in the coming years.
Engagement Opportunities
| Meeting | Date | Location | Information |
|---|---|---|---|
| EPRI R&D Information Exchange Webcast: TopoloNet, New Technology (P35.013) | February 10 11:00-12:00 PM |
Webcast | Meeting Materials |
| Increased Overhead Transmission Capacity Task Force | March 10-13 (In-person) March 17-20 (Virtual) |
Charlotte, NC | Meeting Materials |
| EPRI Overhead Transmission Program (P35) New Supplemental Launch Webcast | April 3 2:00 pm - 3:00 pm ET |
Webcast | Meeting Materials |
| EPRI R&D Information Exchange Webcast: BPA DLR Field Trial (P35.013) | April 17 10:00-11:30 pm ET |
Webcast | Meeting Materials |
| EPRI R&D Project Update Webcast: Line Ratings (P35.013) | May 14 10:00-11:00 AM |
Webcast | Meeting Materials |
| Overhead Transmission 2026 ARP Rollout #1 | July 17 10:00 am - 11:00 pm ET |
Webcast | Meeting Material |
| Overhead Transmission 2026 ARP Rollout #2 | July 24 2:00 pm - 3:30 pm ET |
Webcast | Meeting Material |
| Increased Overhead Transmission Capacity Task Force | August 18-22 (In-person) August 25-29 (Virtual) |
Charlotte, NC | Meeting Materials |
| EPRI R&D Information Exchange Webcast: Update on DLR Status in Industry (P35.013) | October 20 9:00-10:30 am ET |
Webcast | Meeting Materials |
| EPRI End of Year Webcast: Line Ratings (P35.013) | November 17 11:00-12:00 pm ET |
Webcast | |
| TRW Training | December 3 3:00-4:00 pm ET |
Webcast | Meeting Materials |
2026 Anticipated Deliverables
| Deliverable | Deliverable Type |
|---|---|
| DLR Field Demonstration Guide | Technical Update Report |
| EMF Tradeoffs with Uprating | Technical Update Report |
| Uprating for Data Center Load Growth | Technical Update Report |
| Results of Emissivity and Absorptivity Testing 2006–2026 | Technical Update Report |
| EPRI Increased Power Flow Guidebook—2026: Increasing Power Flow inLines, Cables, and Substations (The Platinum Book) | Reference Book |
| Transmission RatingsWorkstation: 2026 | Software |
2025 Deliverables
| Product ID | Name |
Type |
|---|---|---|
| 3002032786 | EPRI Increased Power Flow Guidebook—2025: Increasing Power Flow in Lines, Cables, and Substations |
Guidebook |
| 3002032204 | Transmission Ratings Workstation: 2025 Beta |
Pre Software |
| 3002032787 | Transmission Ratings Workstation: 2025 Final |
Final Release |
| 3002032788 | Technical Review of Methods Used to Determine Dynamic Line Ratings (DLR) |
Final Report |
| 3002032789 | Increased Transmission Line Capacity Projects 69 kV and Above |
Technical Update |
| 3002032790 | Radial Temperature Effects on Conductors and Ratings: State of the Science |
Technical Update |
| 3002032791 | Uprating Project Stakeholder Coordination: Cybersecurity for Rating Engineers |
Technical Update |