New substations and upgrades for Chumuckla, Wallace, and Allentown.
In a major enhancement of regional electrical infrastructure, plans are underway to upgrade the power distribution system with new substations in Chumuckla, Wallace, and Allentown.
This initiative includes converting the existing 46-kilovolt transmission lines to a more robust 115-kV system, significantly increasing capacity at each location.
The Chumuckla Substation
The Chumuckla substation was completely rebuilt and energized in late July. It previously operated at a capacity of 12.5 megavolt amperes. The new infrastructure raised this capacity to 20 MVA, a 60% increase.
This upgrade is equivalent to adding power capacity for approximately 2,000 homes.
This project not only aims to improve reliability but also prepares the grid for future demand growth.
The Wallace Substation
The Wallace substation will begin a partial rebuild and expansion this month.
The existing setup will increase from 14 MVA to 20 MVA, a 42% rise. This upgrade is designed to ensure Wallace can support an expanding community while maintaining consistent and reliable service.
This project is expected to take place from September to December 2024.
The Allentown Substation
Beginning in January, the Allentown substation will see the most dramatic change.
Currently operating at a modest 5 MVA, it will be completely rebuilt to 20 MVA, a 300% increase in capacity. This major upgrade is crucial for meeting the future energy needs of Allentown and supporting its anticipated growth.
Infrastructure & Costs
All 3 new substations will utilize concrete poles for the new 115-kV transmission lines, which are known for their durability and lower maintenance requirements compared to traditional wooden poles.
This transition to a higher voltage system is designed to improve the efficiency and reliability of power transmission.
The entire project, including the conversion to 115 kV and the installation of new substations, is estimated to cost $24 million. This significant investment underscores the commitment to enhancing the region’s power infrastructure to meet future demands.
Project Timeline
The project is slated for completion in August 2025.
Once completed, the upgraded substations will boost capacity and enhance the reliability and efficiency of the power supply across Chumuckla, Wallace, and Allentown.
These upgrades are critical steps toward ensuring the electrical infrastructure can support the growing needs of these communities while providing a more robust and reliable power supply.