Overhead T&D

Underground Distribution

Underground Smart Grid

In recent years, the cost to bury high-voltage power lines has decreased dramatically. The American Transmission Company reports that installation costs for underground transmission lines (over 100 kilovolts) are now only 2.5 to 10 times the cost of an equivalent overhead line. Consequently, the...

Infrastructure & Technologies

High Voltage AC Transmission Lines

Three-phase electric power systems are used for high and extra-high voltage AC transmission lines (50kV and above). The pylons must therefore be designed to carry three (or multiples of three) conductors. The towers are usually steel lattices or trusses (wooden structures are used in Germany in...

Disaster & Recovery

Speed Up Damage Assessment, Assembly and Dispatch of Resources During Outage Events

In a survey conducted in September 2016 by ARCOS LLC (a provider of emergency resource management software), the software provider asked utilities how they manage damage assessment in the wake of major events like storms and earthquakes. Thirty-five percent of utilities polled said they relied on...

Overhead Distribution

Q&A: Transmission Line Inspection Using Robotics

A: Hydro-Québec’s power transmission system, the most extensive in North America, covers close to 34,000 km. Similar to many power utilities, we need thorough infrastructure inspections to ensure system reliability, availability, and performance.Therefore, we have, developed robotic...

Distribution Protection

ArmorBuiltTM Wildfire Shield Proven Protection for Utility Poles

IntroductionIn November of 2018, the deadliest, most destructive wildfire in California history burned a total of 240 square miles, destroyed 18,804 structures and resulted in 85 civilian fatalities. Known as the Camp Fire, it devastated several communities including the towns of Paradise and...

Outage Management & Restoration

Coping with Extreme Weather Events

How to optimize the entire outage lifecycle BY RICK NICHOLSON, Ventyx The extreme weather just keeps coming. In 2012, there were 11 outages due to severe weather costing at least $1 billion. The year of 2013 had its share as well. More and more, the scale and variety of such major events are...

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Plugging into Electric Vehicles

Most future planning discussions about electric vehicles begin with a prediction for significant impact by 2020. While these studies are important for future planning, utilities must consider the direct impact that EVs are currently having on society. Despite recent news about lower gas prices at the pump, over 300,000 EVs are currently on the road. The grid implications of charging these vehicles are crucial.

In 2015 alone, electric vehicles (EVs) in the U.S will...

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