Maryland has turned the AI power fight into a refund question. Its complaint against PJM asks FERC to set a refund effective date as of May 7, find PJM's transmission-cost allocation unjust and unreasonable, and require rules that assign costs to the large loads that cause them. [1]

That is the next step after the paper's June 17 account of Maryland naming a $1.6 billion data-center cost shift. Yesterday's receipt was the number. Today's governing question is whether the number can become refundable if FERC agrees that Maryland customers are being billed for transmission projects driven primarily by data-center load elsewhere. [1]

The complaint is unusually useful because it strips AI infrastructure of its favorite abstraction. Maryland's Office of People's Counsel says customers will pay about $1.6 billion over the next decade for additional transmission costs tied largely to data-center growth outside Maryland. [1] It argues that PJM's hybrid load-ratio share and solution-based DFAX methodology no longer follows cost causation when concentrated large loads drive regional transmission expansion. [1]

That phrase, cost causation, is the whole story. X says households are subsidizing server farms. Mainstream energy coverage says data centers require planning, interconnection reform, and new capacity. The complaint asks a narrower public-utility question: if a load causes the upgrade, why should a distant household pay the bill?

Maryland does not ask FERC to stop artificial-intelligence data centers. It asks FERC to trace the invoice. The complaint says PJM's methodology produces unjust cross-subsidies, creates perverse incentives, and requires existing customers to subsidize large loads. [1] It also says retail remedies and transmission-security agreements do not cure the regional cost-allocation problem. [1]

Utility Dive explains why the docket lands inside a larger regulatory fight. FERC planned a June decision on data-center and large-load interconnection reform after the Department of Energy proposed principles for interconnecting those loads to the transmission system. [2] Chairman Laura Swett said federal-state jurisdictional boundaries are a key issue and that she wants to know where FERC authority ends and state authority begins. [2]

State regulators are not asking politely to be spectators. Utility Dive reported that NARUC told FERC recent state efforts show state commissions are best positioned to protect customers from improper cost shifts and unfair interconnection processes. [2] Maryland's complaint makes that argument concrete. It says customer protection cannot depend only on retail tariffs if the regional transmission formula sends the wrong costs to the wrong zones. [1]

The refund date matters because it turns a policy argument into a ledger. Without a refund-effective date, customers can win the theory after the charges harden into rates. With one, the docket can preserve the possibility of making customers whole if FERC later changes the allocation. [1] That is why this is not just another data-center backlash story. It is a bill with a procedural handle.

The Perspez post captures the X version of the same issue: regulators are trying to clarify how large data-center loads connect, who pays for grid upgrades, and whether dedicated generation or curtailment becomes part of the bargain. The post turns that into a power-is-the-asset thesis for one company. Maryland turns it into a ratepayer docket.

The difference matters for readers who do not own AI stocks and do not negotiate interconnection agreements. They receive electric bills. If data centers need transmission, the grid must decide whether the beneficiary, the region, or the household pays. Maryland's filing says the answer is already appearing on customer bills and that FERC should be able to reverse it. The next AI receipt is not a model benchmark. It is whether a refund docket can make power costs follow the load.

-- DARA OSEI, London