Insights > $1.3M transmission update helps prevent future customer costs

$1.3M transmission update helps prevent future customer costs

06/11/2024

Crews replace two transmission structures outside the Franklin Substation in Franklin County, Mississippi.
Crews replace two transmission structures outside the Franklin Substation in Franklin County, Mississippi.

Entergy Mississippi completes Grand Gulf to Franklin Substation project

Entergy Mississippi recently completed a $1.3 million project to update a major transmission pathway coming from the Grand Gulf Nuclear Station. The completion of the project supports affordability and significantly lowers the risk of transmission interruptions between Entergy Mississippi’s single largest power resource and the Franklin Substation located in Franklin County, Mississippi.

The project, which was born from a study to find opportunities for improved reliability, included replacing two transmission line structures outside the substation, and reconfiguring equipment inside of it.

“The completion of this project not only helps us prevent the risk of unexpectedly losing connectivity with Grand Gulf, but it also avoids creating future customer costs that would be associated with losing that connectivity. The study that helped us realize this risk was integral to enhancing our grid,” said Randy Vaughan, director, project delivery.

Project managers coordinated around other work happening in and near Grand Gulf, and found the optimal time to complete the project in early 2024. Over the course of about a week, highly skilled crews switched phases and built new lines, which will help mitigate future risks of tripping transmission service from Grand Gulf to the substation.

Vaughan continued, “To put it into perspective, during the hottest and coldest months of the year, Entergy Mississippi’s peak load is around 3.4 gigawatts. Grand Gulf alone supplies 1.5 gigawatts of power across the grid. By supplying reliable and affordable power, we’re meeting our customers’ current and future needs. That’s why this project was important.”

Entergy Mississippi continually works to mitigate risks and improve service for our customers. Data shows the efforts the company has put forth to maintain reliability and affordability over the years have yielded great results – allowing more investment in infrastructure and better performance.


Candace Coleman
Senior Communications Specialist, Entergy Mississippi