Florida PSC Tells Duke Energy Its AI Data Center Rate Plan Is on 'Shaky Ground'

Florida regulators let the case move forward but made clear the utility's cost-recovery plan faces a steep climb at a late-August evidentiary hearing.

Key takeaways

• The Florida PSC voted 4-1 to deny a motion to dismiss Duke Energy's AI data center rate petition, advancing it to a full evidentiary hearing scheduled for late August 2026.
• Commissioner Gary Clark told Duke directly it is on "real shaky ground"; the lone dissenter voted to throw the case out entirely; and Florida's state consumer advocate has called the plan "unlawful."
• The case is the first test of Florida's new data center law signed by Gov. Ron DeSantis requiring large electricity users to cover infrastructure costs rather than shifting them to residential ratepayers.

The Florida Public Service Commission voted 4-1 this week to keep Duke Energy Florida's proposed AI data center rate tariff alive, rejecting a motion to dismiss the petition outright, per reporting first published by the Tampa Bay Times. The survival comes with a warning: Commissioner Gary Clark told Duke during the hearing, "I think you're on real shaky ground, if you ask me."

The decisive moment is not this vote. A two-day evidentiary hearing in late August 2026 will determine whether Duke's plan actually complies with state law, and the early signals from the commission are not favorable for the utility.

What Duke Is Asking For and Why Regulators Are Skeptical

Duke Energy Florida serves roughly 2.1 million customers across approximately 13,000 square miles. It does not currently have a single large-load data center customer. The company filed its petition with the FPSC in September 2025 anticipating demand, stating in its filing that it "does not currently have any large load data center customers, but given the recent trends that have been identified, the company anticipates that it may be requested to provide service to these kinds of customers."

The petition asks the commission to establish a new rate tariff specifically for AI data center customers, one that would require those customers to cover infrastructure costs rather than spreading them across Duke's residential base. Duke has argued that under its current rate settlement, customer base rates will not include data center costs through the end of 2027, with shareholders absorbing any shortfall if a large-load customer does not generate sufficient revenue before then.

That framing did not persuade Commissioner Mike La Rosa, the former Republican lawmaker who cast the lone vote to dismiss. La Rosa cited "areas of concern" about whether Duke's approach complies with requirements set by the Legislature. Florida's state consumer advocate, Walt Trierweiler, went further, calling Duke's approach "unlawful" and accusing the utility of seeking profit at the expense of customer protections.

The case is, by the commission's own description, the first time the PSC has had to interpret Florida's new data center law, legislation signed by Gov. Ron DeSantis designed to keep AI energy infrastructure costs off residential ratepayers. The commission advanced the petition, but none of the skepticism on display this week disappears before August.

The Permission Problem AI Infrastructure Cannot Route Around

The consumer-protection framing of this story, will Floridians pay higher electric bills to power AI, misses the more durable signal.

Every centralized AI data center that requires a utility to build dedicated infrastructure also requires a regulator to approve who pays for it. Florida's PSC just demonstrated that approval is not a formality. A purpose-built rate tariff, cleared legislation, and a cooperative utility were not enough to avoid a near-dismissal vote and a commissioner telling the company it is on shaky ground. The Stargate AI buildout and the broader wave of hyperscale AI capex run into this same wall at state commissions across the country, stacked on top of FERC interconnection queues that already stretch years.

Bitcoin mining does not file rate petitions. A miner can co-locate with a generator, sign a direct power purchase agreement, or operate as a behind-the-meter load under existing programs without requiring a state legislature to pass enabling legislation first. The permissionless energy arbitrage available to miners, moving to where electrons are cheapest at the speed of a contract rather than a rate case, is structurally inaccessible to a hyperscale data center that needs a utility to build transmission and substation infrastructure on its behalf.

The falsifiable version of that thesis: if the FPSC approves Duke's plan in August with full cost recovery from the data center customer and zero ratepayer subsidy, and other state commissions follow the same pattern, it signals that regulated utility frameworks can actually accelerate centralized AI infrastructure buildout. If that becomes the norm, the comparative friction advantage Bitcoin mining holds at the utility layer narrows. The August hearing is the first data point.

There is a second-order tension worth noting. Miners who have priced in accelerating grid investment driven partly by AI capex demand face a slower build if regulatory friction keeps large-load projects in rate-case limbo for months or years. Delayed grid upgrades push out the timeline for cheaper, more abundant power in key mining markets. The same friction that validates Bitcoin mining's permissionless model also slows the infrastructure buildout miners are counting on.

What to Watch in Late August

The FPSC's two-day evidentiary hearing will produce the commission's actual ruling on whether Duke's tariff structure satisfies the requirements of Florida's new data center law. Commissioner La Rosa's dissent and Clark's "shaky ground" comment suggest Duke will need to substantially address the statutory compliance questions before then. A ruling against Duke would leave Florida's AI data center pipeline without a clear utility cost-recovery path and would put every other state commission watching this proceeding on notice that purpose-built large-load tariffs face real legal exposure.

Sources

• Florida Public Service Commission, FPSC docket portal for Duke Energy Florida large-load data center petition
• First reported by Tampa Bay Times, Commissioner Clark quote and hearing coverage
• Duke Energy Florida September 2025 FPSC petition, original large-load data center tariff filing (docket number to be confirmed via FPSC e-filing portal)