50 MW individually or 100 MW in aggregate triggers Pennsylvania's modified Large Load Tariff Framework, adopted by the Public Utility Commission in April 2026 to set clear statewide rules for high-demand customers as electricity needs surge, on top of a large-load tariff already included in PPL Electric Utilities' rate-review settlement.
Also active in Pennsylvania: PPL is serving a 1,350 MW, three-campus data centre complex in Carlisle and a 1,200 MW Nebius project in Butler Township backed by a Dedicated Energy Services Agreement shielding ratepayers from cost exposure; PECO is planning for a $20 billion pipeline of AWS data centres statewide.
Named Projects Already Underway
| Customer | Location | Details |
|---|---|---|
| PowerHouse Data Centers | Carlisle, PA | 1,350 MW data centre complex across three campuses, each on a dedicated 450 MW substation |
| Nebius | Butler Township, PA | 1,200 MW data centre campus under a Dedicated Energy Services Agreement shielding ratepayers from cost exposure |
Figures compiled from the Edison Electric Institute's "Large Load Projects and Tariffs" (September 2026) member-company summary and public regulatory filings. Confirm current tariff terms directly with Pennsylvania PUC (applies across PPL, PECO and other member utilities) and the relevant state public utility commission before relying on any figure for a capital decision.
Weighing Pennsylvania against another state or a Canadian province with a different rate and interconnection picture entirely? Run both sides of the comparison through our licensed AI data centre cost configurator — it applies each jurisdiction's actual power rate, tax treatment and large-load tariff rules to the same seven build configurations.
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