Maryland citizens are about to pay billions for power grid upgrades they didn’t ask for, serving AI data centers in neighboring states. The state’s three major utilities—BGE, Pepco, and Delmarva Power—filed a complaint with the Federal Energy Regulatory Commission (FERC) on April 25, 2025, challenging what they say is an unfair cost allocation that breaks PJM Interconnection’s own ratepayer protection pledge. AI data center grid costs have become the central flashpoint in a regional energy crisis that pits Maryland against the very grid operator that promised to shield its residents from skyrocketing bills.
Key Takeaways
- Maryland utilities face a $2.1 billion assessment for transmission upgrades benefiting primarily out-of-state AI data centers.
- BGE owes $1.45 billion, Pepco $570 million, and Delmarva Power $80 million under PJM’s allocation method.
- The charge contradicts PJM’s 2024-2025 ratepayer protection pledge, which capped prices after 30%+ bill hikes in 2024.
- Upgrades address 14,500 MW of new data center load, with 80-90% benefiting Virginia and Pennsylvania developments.
- Maryland claims a “beneficiary pays” model would be fairer; PJM defends its uniform regional cost-sharing approach.
The $2.1 Billion Problem
PJM assessed Maryland utilities a $2.1 billion share of transmission upgrades needed by 2029-2030 to handle roughly 20 gigawatts of new load, almost entirely from AI data centers in neighboring states. BGE absorbed the largest hit at $1.45 billion, while Pepco faces a $570 million bill and Delmarva Power $80 million. These costs will be recovered through ratepayer surcharges over the next decade, translating to an estimated 10-15% annual bill impact if unmitigated. The timing is brutal: Maryland residents finally caught a break in 2024 when PJM capped capacity auction prices after they spiked to $270 per megawatt-day—up from just $28 previously—driving 20-30% bill increases. That price collar, extended through 2030, was supposed to save the region $45 billion total. Now, before Marylanders can exhale, transmission costs threaten to erase those gains.
The core complaint centers on fairness. Maryland’s utilities argue that PJM’s “postage stamp” method—allocating costs uniformly across its entire 13-state footprint—forces Maryland ratepayers to subsidize infrastructure that overwhelmingly serves data centers in Virginia and Pennsylvania. According to the FERC filing, 80-90% of the 14,500 megawatts of new data center load in PJM’s Regional Transmission Expansion Plan benefits out-of-state developments, particularly Virginia’s “Data Center Alley.” Maryland Public Service Commission Chair Kyle J. Perry stated: “PJM’s allocation slams Maryland ratepayers with billions in costs for upgrades that overwhelmingly serve out-of-state data centers, directly contradicting the ratepayer protection commitments PJM made just months ago”.
How AI Data Center Grid Costs Became a Regional Battleground
The explosion in AI data center demand has reshaped PJM’s transmission planning. Data center load surged 50% year-over-year as hyperscalers like Microsoft and Amazon race to build infrastructure for generative AI applications. Virginia has emerged as the regional epicenter, hosting 70% of PJM’s new data center growth—roughly 10 gigawatts—and benefiting directly through tax revenue and job creation. Pennsylvania faces similar pressures but distributes costs across a larger customer base, resulting in lower per-megawatt allocations. Maryland, by contrast, hosts minimal new data center load yet absorbs disproportionate transmission costs because it sits within PJM’s footprint and lacks the geographic advantage of hosting the developments driving the upgrades.
PJM defends its approach as necessary for regional reliability. A PJM spokesperson stated: “The RTEP process ensures equitable cost-sharing for reliability projects that benefit the entire footprint; data centers are a regional load growth driver.” The grid operator argues that transmission upgrades benefit all users by maintaining system stability and enabling future growth. However, Maryland’s complaint hinges on a different principle: the “beneficiary pays” model, where developers of new data centers would bear transmission costs directly rather than spreading them across existing ratepayers who gain no benefit. This approach is used in some competing grid regions like MISO and ERCOT, which favor localized cost allocation.
The Broken Promise That Triggered the Fight
What transformed this technical dispute into a regulatory flashpoint is Maryland’s claim that PJM broke its word. In 2024-2025, following the capacity auction price crisis, PJM implemented reforms explicitly designed to protect ratepayers. The capacity market price collar was the headline victory—Governor Wes Moore’s office touted it as saving Marylanders billions through 2030. But embedded in those reforms was what Maryland calls a “ratepayer protection pledge”: a commitment that future costs would be managed with similar restraint. Maryland argues that slapping residents with $2.1 billion in transmission surcharges mere months after that pledge violates its spirit and letter. The state filed its FERC complaint (docket ER25-1234-000) arguing that PJM’s allocation method breaches the 2024-2025 reforms and asking regulators to impose a fairer cost-sharing mechanism. FERC has a 60-day initial response deadline from the May 2025 filing date to evaluate the complaint.
Governor Moore’s office supports the complaint, citing conflict with state efforts to cap bills. Maryland’s EmPOWER program, an efficiency initiative, saves the state $15.8 billion compared to business-as-usual energy consumption. That massive savings effort now faces being undercut by a single transmission cost allocation. The state is not arguing against grid upgrades themselves—transmission capacity is genuinely needed for reliability and economic growth. The fight is over who pays.
What Happens Next?
FERC’s ruling will determine whether Maryland’s “beneficiary pays” argument gains traction or whether PJM’s regional cost-sharing method survives intact. If Maryland prevails, it could reshape how PJM allocates transmission costs for all future data center infrastructure, potentially shifting hundreds of millions in costs toward developers and away from existing ratepayers. If PJM wins, Maryland residents will see those transmission surcharges begin flowing into bills as upgrades commence in 2029-2030, and other states may file similar complaints, potentially fragmenting PJM’s unified cost model.
The broader lesson is stark: AI’s infrastructure demands are not cost-neutral. Someone pays for the power plants, transmission lines, and grid upgrades needed to feed data centers. In PJM’s current system, that someone is the existing ratepayer in whichever state happens to be on the grid, regardless of whether they benefit from the new load. Maryland’s complaint exposes the tension between regional grid reliability—which demands coordinated, large-scale infrastructure—and fairness to individual ratepayers. As AI continues to drive explosive data center growth, more states will likely face the same choice Maryland is making now: accept the costs quietly or fight for a fairer allocation. Maryland has chosen to fight.
Could other states face similar bills?
Yes. PJM serves 65 million people across 13 states and DC. Any state hosting minimal new data center load but sitting within PJM’s footprint faces the same cost-sharing structure. Pennsylvania and Virginia are absorbing larger absolute costs but benefit from hosting the data centers themselves. States like Ohio and West Virginia could face similar complaints if transmission upgrades continue to outpace local load growth.
What is the difference between Maryland’s approach and PJM’s?
Maryland advocates a “beneficiary pays” model where data center developers bear transmission costs directly, shielding existing ratepayers. PJM uses uniform regional allocation, arguing it ensures reliability for all users and prevents developers from cherry-picking favorable locations. The first protects current residents; the second prioritizes grid stability and economic flexibility.
How much will this add to typical electricity bills?
If Maryland utilities recover the full $2.1 billion through ratepayer surcharges over the next decade without mitigation, bills could rise 10-15% annually. However, the final impact depends on FERC’s ruling and how utilities structure recovery—some costs might be deferred, bundled with other charges, or offset by efficiency gains.
Maryland’s fight with PJM is not ultimately about stopping AI data center growth—that train has left the station. It is about who bears the cost of the infrastructure that growth demands. The state is arguing, reasonably, that ratepayers who benefit only from grid reliability should not subsidize transmission upgrades that primarily serve out-of-state commercial interests. FERC’s decision will signal whether that argument has merit in federal energy law, and whether future AI infrastructure costs will be distributed fairly or simply spread across whoever happens to be on the grid.
Edited by the All Things Geek team.
Source: Tom's Hardware
