Oklo Challenges PJM's Removal of 750 MW Hybrid Nuclear Project from Interconnection Queue

Key points

• Oklo filed an emergency complaint with FERC on Aug. 28, 2026, demanding PJM reinstate its 750 MW project in the current interconnection study cycle.
• The project, located in Pike County, Ohio, combines 150 MW of advanced nuclear, 300 MW of fuel cells, and 300 MW of natural gas generation to power Meta data centers.
• PJM withdrew the project on Aug. 3, citing deficiencies in voltage ride-through capabilities, while Oklo claims PJM failed to send proper deficiency notices or hold scoping meetings.
• Oklo argues the removal will delay the project by at least 14 months and significantly increase costs, labeling the review process 'unjust' and 'unduly discriminatory.'
• PJM spokesman Jeffrey Shields stated that nearly 90% of new service requests met requirements in the latest cycle and that PJM plans to respond to the complaint by Sept. 4.

Background

This dispute occurs as PJM implements a reformed interconnection queue process following a backlog clearance, with FERC simultaneously pressuring PJM to adopt governance reforms by September 2026. Oklo recently achieved criticality in its Groves Isotope Test Reactor in Texas, highlighting its active role in the U.S. advanced nuclear push, while the broader grid faces increasing strain from data center demand, with data center load accounting for 9% of PJM wholesale costs in 2026.

Why it matters

The outcome will test the flexibility of PJM's new interconnection rules for hybrid, multi-fuel projects and set a precedent for how FERC handles disputes over grid operator conduct, potentially impacting the timeline for advanced nuclear deployment and data center power supply in the PJM region.

What to watch

PJM is expected to respond to Oklo's complaint by Sept. 4, 2026, while FERC reviews the request to reinstate the project and potentially grant waivers to prevent delays in the interconnection study cycle.