Duke Energy Carolinas and Duke Energy Progress (North Carolina), proposed Large Load Tariff settlement
Large-load tariff for data centers: what is on file, the terms the filings state, and where each fact comes from. Terms a filing does not state are marked, never guessed.
StatusPending Last reviewed 2026-10-14
Applies atProposed: 50 MW or more of contract demand with an expected 80% load factor, or 150 MW or more at any load factor (premises within one mile counted together)
What the filing saysPENDING, NOT APPROVED. NCUC Dockets E-7 Sub 1329 and E-2 Sub 1380: a settlement was filed Oct 6, 2026 (signed by Public Staff and large customers including Amazon, Google and Microsoft; environmental groups say it falls short). If approved, the tariff would apply from Jan 1, 2027 to agreements signed on or after June 1, 2026. Proposed terms: minimum initial term 10 years (5 years plus ramp) under 100 MW and 15 years (10 years plus ramp) at 100 MW or more; automatic one-year extensions with 24 months' notice; served under Schedule HLF; billing demand never below 75% of contract demand; notice to cut demand or leave of 24 months (under 250 MW), 36 months (250 to 499 MW) or 48 months (500 MW or more), with minimum bills still due during notice; early-termination damages of 100% of minimum bills for the notice period, plus the present value of remaining facility charges, plus 25% of remaining minimum bills; one free 20% reduction (up to 200 MW) after year 6; security equal to those damages; a letter of credit for transmission upgrades; the customer advances the cost of dedicated facilities; each contract must include interruptibility of either 95% of load for up to 50 hours a year or 50% for up to 100 hours a year, during the ramp plus one year, or another approved option. This row is for the NC tariff; South Carolina has a separate generic docket (2026-138-E) not yet read.
Stated terms
Contract term10 years; 15 years at 100 MW and above
6 more stated terms (contract term, minimum bill, collateral, exit fee, notice and time to power, as the filings state them) are shown to signed-in visitors. Create a free account to see them, or sign in.
Source
Agreement and Stipulation of Settlement on Large Load Tariff, filed Oct 6, 2026 (SELC-hosted copy, read in full); Axios and WUNC coverage of Oct 7, 2026. Commission order not yet issued.
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Screening information from public filings, not legal or investment advice. Tariffs change; confirm the current terms with the utility and the commission before relying on them.