North Carolina Advocates Urge Utilities to Create Data-Center T&D Rates

North Carolina Data Center Rates move to the forefront as consumer advocates urge regulators to create utilities tariffs that make large-load users cover grid expansion costs, protecting residential ratepayers in an ongoing Duke Energy rate case.

Consumer advocates in North Carolina are urging state regulators to establish a distinct rate structure for data centers and other large-load customers so that the costs of serving these facilities are not shifted onto residential ratepayers. The call comes as a pending rate case seeks a 14% increase beginning next year, intensifying scrutiny of how rapidly growing energy demand from power-hungry facilities is allocated across customer classes.

The state's Public Staff, which represents utility customers, supports establishing mandatory rates for very large loads in the current proceeding. In recent filings, the group argued that the commission has the authority to act now and should do so before additional contracts lock in service terms for new high-demand projects. For readers tracking oversight themes, see TVA federal scrutiny for added regulatory context that often frames cost-allocation debates across utility dockets.

Testimony outlined a potential design for a new tariff aimed at businesses that request 50 megawatts or more and plan to use at least 80% of that load. Because data centers typically run around the clock, the proposal emphasizes that they may require a new generation rather than relying on existing capacity. It also contemplates minimum monthly bills and exit fees to prevent other customers from absorbing stranded costs if a project changes plans. Discussions abroad, such as UK electricity, show how rate design and grid planning questions recur in many jurisdictions, informing how stakeholders frame similar issues here.

The Public Staff warned that, without protective measures, current customers could be exposed to the costs of building new power plants to accommodate large, continuous loads. It cited evidence of significant demand growth, including contracts with multiple energy-intensive businesses amounting to thousands of megawatts of future service in the Carolinas. Similar public sensitivity to bill impacts, reflected in coverage like Manitoba hydro rate protest, underscores why commissions probe cost responsibility and customer protections carefully before approving new rate structures.

Regulators were told there is precedent for acting in a general rate case, pointing to last year7s approval of time-of-use rates for qualifying customers in a separate proceeding. The proposed approach may also include curtailment provisions that require data centers to reduce operations during specified peak periods as an additional safeguard for existing customers. Debates over market structure, including topics such as California power privatization, often intersect with how utilities finance generation and grid investments considered in contested rate cases, reinforcing the stakes for clear cost-causation principles.

State regulators are expected to decide the pending rate case before any new rates would take effect on Jan. 1, 2027. Compliance and governance pressures, highlighted by items like NT power fined, also shape long-term planning and risk allocation for high-load interconnections. As North Carolina weighs a dedicated tariff for very large users, the central question is whether the final framework will ensure that projects driving the need for new resources cover the full costs of reliable service while shielding households from undue impacts on bills.

Related News

• Electricity Forum News

• T&D Business News