Large Loads Are Transforming Transmission Needs
Rapid increases in large, power-dense loads—data centers, advanced manufacturing, logistics hubs, and electrification-driven industry—are redefining transmission planning. These customers require hundreds of megawatts at a single point of interconnection (POI) with fast energization timelines, typically 1–2 years.
To meet this demand, utilities increasingly need firm, dependable transfer capability that can be deployed in the same time frame as a data center gets constructed.
APFC directly addresses this emerging system requirement.
APFC: Speed to Power
Advanced Power Flow Control (APFC) uses modular, power-electronics-based devices to adjust line reactance and actively redirect flows from overloaded circuits to underutilized ones.
APFC projects can be implemented within existing substation footprints or with only limited physical expansion, substantially reducing the need for long-duration outages that introduce both cost and schedule uncertainty.
Delivered on large-load timelines
APFC can be designed, manufactured, installed, and commissioned quickly enough to support energization dates for data centers and other power-dense facilities.
Smaller footprint and less site work
APFC installs inside or adjacent to existing substations, avoiding extensive siting, right-of-way work, and large-scale construction.
Controllable and redeployable
Capacity can be increased in stages as load grows, and devices can be redeployed if customer locations shift over time.
APFC turns existing lines into a controllable resource that can be tuned as load grows and shifts across the network.
Typical installation timelines
SmartValve
12–18 months
Traditional upgrades
Multi-year projects
Speed to Power – What’s the Opportunity Cost?
The Speed to Power metric can be quantitatively measured by the incremental and accelerated capacity unlocked on the grid.
As illustrated in the comparison below, accelerating the interconnection of a 1,000 MW large load with APFC reduces opportunity cost by roughly 17 percent when used in combination with traditional grid reinforcements rather than relying on those reinforcements alone. While traditional reconductoring or new transmission construction may take years, APFC delivers capacity in months, providing a scalable, modular, and redeployable solution.
APFC + traditional upgrades
APFC accelerates speed to power
29,700 MW-months
Month 0
Month 15
Month 36
Earlier firm capacity lowers the cumulative opportunity cost by bringing more of the 1,000 MW load online sooner, while longer-lead reinforcements continue in parallel.
Illustrative pathway combining APFC with reconductoring or new lines.
Traditional upgrades only
Traditional grid upgrades
36,000 MW-months
Month 0
Month 36
Waiting solely for reconductoring or new transmission projects delays access to capacity, increasing opportunity cost in the form of lost production and higher congestion.
Illustrative pathway relying only on long-lead infrastructure projects.
Some Recent References
- From the Grid Strategies report for WIRES, a one-year delay on a 1 billion USD transmission investment can create roughly 370 million USD in lost benefits to consumers. See: Delaying Transmission Increases Costs and Reduces Benefits for Consumers.
- Minimizing commissioning outages has substantial system value. The Transmission Congestion Report by Grid Strategies (November 2025) found that simultaneous transmission and generation outages were responsible for 29 percent of real-time congestion costs in MISO in 2024—approximately 540 million USD. APFC’s ability to be commissioned with minimal service interruption directly mitigates these outage-driven costs while accelerating access to needed capacity.
Conclusion
Large-load growth is driving a fundamental shift in transmission planning. Utilities need firm, predictable, controllable capacity relief to interconnect these customers within required timelines.
APFC delivers this capability, unlocking dependable transfer capacity from existing infrastructure, supporting reliability, and enabling large-load interconnections while longer-term upgrades advance.
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