June 22, 2026 | Source: FERC — "FERC Launches Aggressive Targeted Action to Speed Large Load Integration" (orders issued June 18, 2026)
FERC Puts All Six RTOs on the Clock Over Large-Load Rules
FERC has issued tailored show cause orders under Section 206 of the Federal Power Act to all six jurisdictional grid operators — PJM, MISO, SPP, CAISO, ISO-NE, and NYISO.
Each RTO and its transmission owners now has 60 days to demonstrate why its existing tariff remains just and reasonable without clear, consistent rules for large load customers — or to propose changes.
The orders name five reform categories: efficient transmission service application and study processes (including alternative transmission technologies), preventing cost shifting with transparency into transmission costs, accommodating co-location and behind-the-meter generation, new transmission services for flexible large loads, and a process to study generation serving electrically proximate and co-located loads.
What This Means in the Control Room and the Compliance Shop
This is the federal answer to the data center load surge that planners have been absorbing case by case. The same multi-hundred-megawatt requests that have stressed interconnection queues now have a Commission-driven framework forming around them.
For transmission planners, expect study-process and co-location provisions to move from informal practice into filed tariff language on a 60-day clock. For reliability coordinators and operators, flexible large-load and behind-the-meter arrangements raise real questions about dispatchability, ride-through, and how these loads behave during system stress.
Compliance teams should track each RTO's filing closely — tariff changes here will ripple into interconnection agreements, cost allocation, and the assumptions baked into planning cases. The cost-shifting and transparency pieces in particular will shape who pays for the next wave of build-out.
EPG Solutions Can Help
When every RTO is reworking large-load rules at once, peer benchmarking is how you tell whether your tariff position is an outlier or the standard. EPG Solutions' utility intelligence benchmark reports put your large-load interconnection, cost-allocation, and co-location posture side by side with peers across all six markets — so your filing and planning teams move on evidence, not guesswork. Visit EPG Solutions → epgsolutions.services