Georgia Power: Relieving constraints on two 230 kV circuits
Georgia Power needed a fast, cost-effective solution to address forecast reliability violations on two heavily loaded 230 kV circuits before summer 2025. SmartValve delivered, providing a redeployable bridge while longer-term upgrades are completed.
Fast relief for two constrained transmission circuits
Georgia Power faced a short timeline: reliability violations were forecast on two heavily loaded 230 kV circuits starting in summer 2025, and conventional upgrades could not arrive in time.
Traditional options, including line rebuilds and new series reactors, were evaluated but ruled out due to high costs, long lead times, and limited flexibility. Georgia Power needed a solution that could be deployed quickly, rebalance flows dynamically, and avoid stranded investment ahead of longer-term network upgrades.
SmartValve was selected as the preferred solution. The deployment includes 21 SmartValve modules operating across the two circuits in multiple control modes, dynamically managing line loading by injecting voltage in quadrature with line current to shift flows and alleviate thermal overloads.
Feasibility assessment began in mid-2023. Construction finished in spring 2025 and the system went live by summer 2025. As the utility's first full-scale Advanced Power Flow Control deployment, the project provides near-term relief while preserving long-term flexibility. A new transmission line is expected in the area by summer 2027, at which point the devices can operate differently or be fully or partially relocated to continue delivering value.
Deployed in under two years
From feasibility assessment in mid-2023 to live operation by summer 2025, SmartValve met a timeline that ruled out conventional alternatives.
Redeployable by design
When the new transmission line enters service in 2027, the SmartValve modules can be partially or fully relocated to continue delivering value elsewhere on the grid.
Near-term reliability without the cost of permanent upgrades
The Georgia Power project demonstrates how Advanced Power Flow Control can resolve time-critical reliability constraints faster and at lower cost than traditional transmission upgrades, while preserving flexibility as the network evolves.
Delivered relief by summer 2025
Addressed forecast thermal and reliability violations on two heavily loaded 230 kV circuits in time for peak summer conditions.
Dynamic grid flexibility
Enables active control of line flows across multiple operating conditions rather than a static network fix, adapting as system conditions change.
Reduced cost versus traditional upgrades
Used existing assets more effectively, avoiding the high cost and long lead times associated with line rebuilds and new series reactors.
Redeployable bridge solution
Bridges the gap until longer-term transmission upgrades are in place, with devices relocatable to avoid stranded asset risk when the new line enters service in 2027.
Georgia Power SmartValve deployment
A look at the Advanced Power Flow Control deployment on Georgia Power's 230 kV transmission network.
Georgia Power: relieving constraints with a fast, redeployable bridge solution
Access the full case study to learn how Georgia Power used SmartValve to address forecast reliability violations on two 230 kV circuits, deploy ahead of summer peak conditions, and preserve flexibility for future network changes.
