Updates & Events

Task: EPRI High Voltage, Direct-Current (HVDC) Transmission Reference Book (The Olive Book)
Task Description: The EPRI Olive Book is a state-of-the-art guidebook and comprehensive source of technical information for designing, building, operating, and extending the life of HVDC transmission systems. The project team continuously updates the Olive Book.

Task: Underground Transmission Workstation—DC Ampacity
Task Description: This task aims to enhance the standalone Underground Transmission Workstation (UTW) DC ampacity calculation software tool for HVDC transmission cables. The calculation procedures are based on previous EPRI studies.

Task: Guide for High-Voltage Direct Current (HVDC) Transmission Cable Ratings
Task Description: This report provides calculation procedures for continuous ratings of buried land or submarine HVDC transmission cables.

Task: Off-Line Fault Location Systems for Transmission AC and DC Cables
Task Description: Off-line fault location is critical for determining location of a cable fault. This task provides results of a study in applying and demonstrating previously developed fault location technology for long HVDC cables to HVAC cables.

Task: Guide on HVAC and HVDC Array and Export Power Cables for Offshore Wind Farms
Task Description: This task is a multi-year effort addressing technical challenges for exporting a large amount of energy from offshore wind collectors to land-based grid connections. Both HVAC and HVDC technologies are investigated. The task evaluates best practices and the state of technology, from design to operation and maintenance.

Engagement Opportunities

2025 Planned Deliverables

2024 Deliverables