References and Virtual Assistant

Welcome to the EPRI Transmission Asset Virtual Assistant (TAVA) and Transmission References Portal, a centralized resource designed to provide access to EPRI’s extensive collection of transmission reference materials. For decades, EPRI researchers, engineers, and industry experts have developed these trusted references through technical studies, laboratory testing, field demonstrations, and practical utility experience. Collectively, these publications capture a vast body of knowledge covering a wide range of transmission topics, helping engineers make informed decisions that improve system reliability, performance, safety, and cost effectiveness. These references, often known throughout the industry as EPRI’s transmission “color books,” are widely used by utilities, consultants, manufacturers, and engineering organizations around the world.

This portal brings those resources together in a single, easy-to-use location, making it simpler than ever to access the latest technical guidance and information. Whether you are seeking foundational engineering principles, design considerations, operational best practices, or answers to complex technical challenges, this site is intended to serve as a trusted source of transmission knowledge. In addition to direct access to the reference materials, the AI-enabled Transmission Asset Virtual Assistant (TAVA) helps users quickly locate relevant content, synthesize information across multiple references, and receive technically grounded answers with direct links to supporting source material. By combining decades of EPRI expertise with modern AI-powered search capabilities, this portal helps transmission engineers worldwide find the right information faster and apply it with confidence.

If you’d like your organization to have access to these resources, please contact TDI@EPRI.com.

Current list of completed references are:

Coming Soon!