A transmission line is a far more complex piece of equipment than many people realize. In its simplest form it may be considered as just a pair of wires merely carrying ac power. Usually in these ...

Xcel Energy and Dairyland Power Cooperative are currently working together to build a new transmission line across southeast Minnesota, connecting to Wisconsin and the rest of the Upper Midwest, but ...

For the first time in a half century, new high-voltage power lines are set to cross into Michigan, snaking up the center of the state. As a pair of major transmission line projects stretching some 95 ...

For decades, U.S. electricity demand was steady, allowing utilities to plan gradual growth and maintain the grid with modest upgrades. That era is over. The convergence of electric vehicles (EVs), ...

The National Electric Safety Code (NESC) includes a clause sometimes referred to as the “5-mA Rule,” which states: For voltages exceeding 98 kV ac to ground, either the clearances shall be increased ...

The MariBell project is a 140-mile, 765-kilovolt power line that would run from Marion, Minnesota to Bell Center, Wisconsin. It's being developed by Dairyland Power Cooperative, in La Crosse, and ...

Transmission lines that carry power to electric customers. A hydropower line bringing electricity from Canada into the New England grid began commercial operations Friday. The 145-mile transmission ...

For years, the electric utility industry has been questioning whether to use overhead or underground systems for transmission of power using high-voltage transmission lines. Issues driving this ...

Mention “renewable energy infrastructure” and most people will probably picture solar and wind farms out in the country. What’s usually not envisioned is how the power from these often remote sites is ...

A proposed 500 kilovolt transmission line project that would connect NextEra Energy’s planned Woodside substation to Dominion Energy’s Aspen substation was approved by the PJM board of managers Dec.