To continue improving reliability and meet growing energy needs, CHELCO, in partnership with our generation and transmission partner, PowerSouth Energy Cooperative, has begun major upgrades at the Mossy Head substation. This project will expand the substation’s capacity to accommodate the significant growth in the area.

Currently, the Mossy Head substation serves more than 4,000 meters, including the rapidly developing industrial park. During construction, PowerSouth will provide a mobile substation unit to help carry the electric load and ensure members continue receiving reliable power throughout the upgrade process.

“This is a major upgrade for our members in Mossy Head,” said CHELCO SVP of Engineering and Operations Matthew Avery. “These proactive improvements are part of our long-term effort to meet growing energy demand and build a stronger, more resilient system for our members.”

The upgrades, much like those underway on our Auburn substation, will include new equipment and enhanced technology to improve efficiency, reduce outages and allow CHELCO to better manage electric load during peak times. Once completed, the project will increase capacity to serve new members and ensure the community is well prepared for future growth.

Looking ahead, PowerSouth plans to add a new transformer in 2026, adding 20 megawatts of capacity to the Mossy Head substation. By planning ahead and working closely with PowerSouth, CHELCO is ensuring Mossy Head members can count on safe, dependable power for years to come.