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Infrastructure & Technologies


Current Trends in Transmission and Distribution

Sargent & Lundy has provided comprehensive engineering, development, permitting, high-level consulting, construction management, and commissioning services for electric power generation and power delivery projects worldwide—approximately 2,000 clients in nearly 100 countries—since...


Infrastructure & Technologies

Weathering the Power Quality Storm

How weather affects power quality on the electric grid

BY ALDEN WRIGHT & MARK STEPHENS, Electric Power Research Institute

Utilities have long understood that weather and grid power quality are closely linked. As anyone who keeps up with the news will note, the last few years have seen a significant number of major storms—including Hurricane Sandy, being among the worst—that have caused significant power outages affecting millions of customers, largely in the eastern half of...

Related Articles


Power Grid Congestion

Unclogging the arteries of North America’s power grid BY DAVE BRYANT, CTC Global Corporation Without access to affordable and reliable electricity, no society in today’s world can possibly flourish. Canada and the U.S. rely heavily on electricity to pump water to grow crops, manufacture...

Smart Buildings

Building a better world of smart structures on the smart grid

It is a truth universally acknowledged that billions of people around the world live in poverty. But does it have to be that way? Today’s technological progress means that tomorrow we will be able to produce more, more efficiently – lifting people above the breadline with accelerated economic...


Overhead T&D, Direct Current Technology

Direct current (DC) is the preferred technology for moving large amounts of power across long distances. DC results in overall higher efficiency and reliability than an equivalently-sized alternating current (AC) system moving the same amount of power. The Advantages of DC More efficient: Over long...

Distributed Energy Resourses

Distributed Energy Resources - Small Scale Power

Distributed energy resources (DERs) can benefit the power system and individual homes and businesses. DERs can increase the resiliency and reliability of the power grid, reduce greenhouse gas emissions, reduce the overall power cost, and provide power at the point of use. Several types of DERs can...

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...

Facing Wildfire? Choose Toughened Glass Insulators

Insulators under fire, what are we talking about? A line directly in the fire is considered as lost A line near the heat of a fire can be saved What is the condition of insulators on a line nearby a fire? Reliability of insulators during or after a fire is a key consideration for T&D...

The Three R's: Reducing the Environmental Impact of SF6

Sulfur Hexafluoride (SF6) Gas is used as an electrical insulator and arc suppressant in high and medium voltage electrical equipment in the electrical power utility and industrial power industries. SF6 is also used in medical devices, metal production and other manufacturing applications. The same...

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