Florida PSC Rejects Duke Energy Florida's Data Center Tariff 5-0 as Not Complying With the State's Large-Load Cost Law

The Florida Public Service Commission on Tuesday rejected Duke Energy Florida’s proposed large data center tariff 5-0, Florida Phoenix reported. The commission found the proposal did not demonstrate compliance with legislation passed earlier this year, SB 484, which requires utilities to reasonably ensure that large-load customers such as hyperscale data centers bear the full cost of their service. Duke’s petition was the first test of whether the law protects ratepayers; PSC staff recommended late last month that the panel deny it, and in September hearings Duke declined to make public the full costs for residential and small business ratepayers.

A Duke spokesperson said the company remains focused on “ensuring that data centers pay their full cost of service.” For other state rules on who pays for large-load service, see 2025-06-20–texas-sb-6-large-load-interconnection-signed and 2026-03-13–ppl-electric-pa-puc-275m-rate-hike-large-load-data-center-tariff.