What Is Grid Interconnection?
Grid interconnection is the technical and regulatory process by which a new electricity generation or large consumption asset is physically connected to the electrical transmission and distribution system. For a data center, power plant, or industrial facility, interconnection is the formal procedure through which the grid operator approves the connection, studies the impact on the network, and assigns the cost and timeline for the required infrastructure upgrades. It is both a technical bottleneck and a regulatory gate that increasingly determines where and when large power consumers can operate.
The interconnection queue is the waiting list through which new projects apply for grid connection. In the United States, interconnection queues operated by regional transmission organizations (RTOs) and independent system operators (ISOs) have grown from under 200 GW in 2015 to over 2,600 GW in 2025—more than double the current total installed generation capacity of the country. Average wait times in major regions have extended to five to seven years, and the failure-to-complete rate (projects that withdraw before connecting) has reached 70 to 80 percent of applications.
Why AI data centers face an interconnection crisis
Hyperscale data centers powering large language model training and inference require between 100 MW and 1 GW of continuous, reliable power at a single campus. The combination of high load, near-continuous operation, and concentration in existing tech corridors—Northern Virginia, Phoenix, Dallas, Chicago—has collided directly with the grid interconnection bottleneck.
The problem is compounded by the shift in the generation mix: as coal plants retire and solar and wind generation becomes the primary source of new supply, the grid increasingly relies on geographically dispersed, variable-output generation. This makes large, continuous loads like data centers harder to accommodate without expensive transmission upgrades, which in turn extend interconnection timelines.
The Federal Energy Regulatory Commission (FERC) issued Order 2023 in 2023 and Order 1920 in 2024 to reform interconnection processes—moving from a serial, first-come-first-served queue to a cluster study approach and expanding transmission planning requirements. The reforms have shortened timelines in theory but have not yet cleared the existing backlog.
Behind-the-meter and off-grid alternatives
The interconnection bottleneck has accelerated interest in behind-the-meter generation—electricity produced on the data center site and used directly, bypassing the utility grid. This model removes the interconnection queue as a constraint but introduces new challenges: fuel supply, permitting, and financing the generation asset separately from the data center.
Small modular reactors (SMRs) are the technology most frequently cited as the long-term solution for behind-the-meter, 24/7 carbon-free data center power. Several hyperscalers have signed SMR offtake agreements or development partnerships. Natural gas peakers with carbon capture, large-scale battery storage paired with renewables, and geothermal are also in active development as interconnection-independent alternatives.
Why it matters
Grid interconnection is a binding constraint on AI infrastructure deployment timelines. A data center that cannot connect to the grid—or that waits seven years to do so—cannot operate. The interconnection bottleneck has shifted capital and attention toward energy policy, transmission planning, and alternative generation technologies in ways that directly affect where AI compute infrastructure is built, by whom, and under what regulatory terms. For emerging markets seeking to build AI infrastructure, the question of whether local grids can support large power loads—and at what timeline and cost—is as important as land, labor, and regulatory costs.
Related Juncture terms
- Small Modular Reactor
- Behind-the-Meter Generation
- Federal Compute Zone
- AI Special Economic Zone
- Bankability
Related analysis
- [When Digitization Becomes Dependency: How AI Infrastructure Is Redrawing the Sovereign Risk Map](https://juncturepolicy.org/moldova-india-ai-sovereignty-gap-emerging-markets/)
- [Fortress AI Infrastructure](https://juncturepolicy.org/fortress-ai-infrastructure)
Sources
- Lawrence Berkeley National Laboratory, Queued Up: Characteristics of Power Plants Seeking Transmission Interconnection, 2025 (lbl.gov)
- FERC, Order 2023: Improvements to Generator Interconnection Procedures and Agreements, 2023 (ferc.gov)
- FERC, Order 1920: Building for the Future Through Electric Transmission Investments, 2024 (ferc.gov)
- GridStrategies, The Era of Flat Power Demand Is Over, 2023 (gridstrategies.com)