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Hi-Line Engineering Downloads & Bookstore

Hi-Line Engineering offers a comprehensive library of engineering tools, reference materials, and technical resources designed to support electric utility professionals. Users can access a wide range of calculators, voltage drop and flicker tools, specification books, and RUS construction documents that help streamline planning, design, and analysis tasks. In addition to downloadable engineering guides and charts, we offer ordering access to full size copies of the latest editions of the 12.47 kV, the 25 kV, and the underground construction specification books, in addition to our “mini spec books”. Follow the links below to download.

Performing efficient upgrades while ensuring coordination among market participants, RTOs, and FERC is a tall order

Achieving those goals while balancing electricity across the grid requires experienced engineering and analytical talent. The GDS team collaborates with utilities to develop enhancements that are beneficial and essential to the reliability of transmission systems. The goal in every engagement is to ensure reliable, secure power transmission while minimizing initial costs and ensuring regulatory compliance.

Provide reliable, secure power in an increasingly complex transmission landscape

Clear every regulatory hurdle

Secure all IT and OT systems

Avoid penalties for noncompliance

Get a seat at the table for RTO & regional transmission development

Plan for robust and modern transmission systems

Navigate all RTO and FERC open access transmission issues

Get the GUIDANCE YOU NEED to maximize reliability, affordability, and safety.