50 MW or greater additions are covered by a generic docket Duke Energy's South Carolina utilities agreed to open, evaluating existing rate schedules, service regulations, line-extension policy and interconnection rules specifically for 50 MW-plus load additions, alongside updated Service Regulations already approved to formally account for large-load customers.
Also active in South Carolina: South Carolina's stipulation process — agreeing to the generic docket structure before rates are finalized — has become a template other Duke Energy jurisdictions, including North Carolina, are now following.
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 Duke Energy Carolinas / Duke Energy Progress and the relevant state public utility commission before relying on any figure for a capital decision.
Weighing South Carolina 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 center cost configurator — it applies each jurisdiction's actual power rate, tax treatment and large-load tariff rules to the same seven build configurations.
Duke Energy’s South Carolina docket is still working through the generic proceeding process; our crypto data center in BC has already been through that kind of rate design decision and is running today.
