Support Us Button Widget

Could ERCOT soon be connected to the southeastern US power grid?

The federal and state governments have granted approval to build a connection between the power grids through the Southern Spirit Transmission project.

FTW-train-snow-skyline

The grid connector could help Texas’ power demands during winter weather events.

Photo by @jrh79_

Ahead of the upcoming arctic blast, ERCOT issued a Weather Watch for Monday, Jan. 15-Wednesday, Jan. 17, predicting higher electrical demand and the potential for lower reserves. Did you know there’s a project that could potentially connect Texas’ power grid to the southeastern US?

Don’t get too excited — the project is still at least five years away — but here’s what we know so far.

What is the Southern Spirit Transmission?

Private company Pattern Energy has been working with state regulators for the last decade on a connection line from Texas through Louisiana to Mississippi. The $2.6 billion privately-funded project would add at least 320 miles of lines, more than doubling the capacity of Texas’ four existing power connections.

What does that mean?

The new connection would be the largest in Texas, supporting 525kV (or 3,000 megawatts) of transmission in either direction. That is enough electricity to power ~600,000 homes.

When might it happen?

Right-of-way work has already started + construction is slated to begin in 2026 with service starting in late 2029.

Mississippi and Louisiana must still approve the project, but it could offer support during times of peak demand, like severe weather events.

More from FTWtoday
Learn how to win discounted tickets to see Broadway at the Bass through Broadway Direct.
Over the next 10 days, we’re launching a reader-driven campaign to sustain what we do best.
To help make your entire process at the DFW International Airport as smooth as possible, we’ve created a guide that covers everything from terminals and parking to details on the airport’s 260+ nonstop routes worldwide.
Put a smile on your neighbor’s face with these random acts of kindness.
Make the most of cooler temps by exploring these eight North Texas campsites.
Start your morning right with these must-try bagel spots in Fort Worth, from classic cream-cheese bagels to made-to-order sandwiches.
Election Day is here again — check out this quick breakdown of the constitutional amendment ballot before you head to the polls.
Spoiler alert: Traffic isn’t great. We dove into the Texas A&M Transportation Institute’s congestion data so you don’t have to.
Bookmark this guide for a curated list of events taking place each month that we’re most looking forward to.
Including gifts for significant others, retirees, holiday parties, young people, and gifts that ship fast.