If your power bill has felt heavier the last two winters, you weren’t imagining it, and it isn’t just fuel costs. PJM’s own independent market monitor has now put an exact number on what data center demand has added to what everyone else on the grid pays: $23,100,955,341, across three capacity auctions, published to the dollar. And in Ohio, one of the companies pulling on that demand just did something worth understanding — a Bitcoin miner pledged $1.2 billion of its own coins to help buy a natural gas power plant.
I spent seventeen years underwriting mortgages, which means I spent seventeen years reading fine print for a living — the kind that gets checked twice by someone with no reason to be kind to you. This is a fine-print story too. It’s just written in kilowatt-hours instead of loan terms, and the man reading it back to you is a grid operator instead of an underwriter.
The bill that already went up
PJM Interconnection runs the power grid for thirteen states and D.C., and once a year it holds an auction where power plants bid to be “on call” for the next delivery year. In the 2024/2025 auction, that price cleared at $28.92 per megawatt-day. The next year it jumped to $269.92. Then it hit the legal maximum allowed under PJM’s own rules — $329.17, then $333.44 — for two years running. The newest auction, results announced July 14, 2026, cleared at $325.00. Pinned at the cap for a third straight year, and PJM still came up 6,831 megawatts short of what it needed.
- $23.1 billion — added to ratepayer costs across three PJM capacity auctions (Monitoring Analytics, PJM’s independent market monitor)
- $325 per megawatt-day — the newest auction’s clearing price, at the legal cap for the third straight year
- 6,831 megawatts — how short the grid still came up despite that price
Monitoring Analytics — PJM’s own independent market monitor, not an advocacy group — published the number: data center load added $23,100,955,341 to what everyone else on the grid pays across the 2025/26 through 2028/29 auctions. That’s not a projection. It’s an audited counterfactual against what the auction would have cleared without that demand, and it reconciles exactly against PJM’s own $63.6 billion total. In New Jersey, regulators approved rate hikes of $22 to $28 a month per household starting this year, and the state’s utility board chair said it plainly: “PJM’s recent capacity auction results are the main driver of these increases.” That’s roughly $300 a year, and PJM’s own conservative estimate is that data centers account for 1.5% to 5% of the retail bill impact behind it.
What a Bitcoin miner in Ohio has to do with your kilowatt-hour
MARA — one of the largest publicly traded Bitcoin mining companies — spent two years telling shareholders it would never sell a coin. “Adopting a full HODL strategy reflects our confidence in the long-term value of Bitcoin,” the company said in July 2024, and it meant it: zero Bitcoin purchased, zero sold, for most of the last two years. Then, in the first half of 2026, that changed. MARA sold $1,627,163,000 worth of Bitcoin — 114 times what it sold in the same period a year earlier — and bought zero. To be fair to them: they sold above today’s price, not below it. That’s worth saying plainly, because most of this story isn’t about anyone doing something dishonest.
What MARA did with a slice of that money, and with a fresh pledge of 18,750 more Bitcoin — about $1.2 billion, 53% of what was left in the vault — was help fund the purchase of a natural gas power plant in Hannibal, Ohio. Purchase price: roughly $1.5 billion. Current capacity: 485 megawatts, rising to 505 by the second half of this year, with a campus MARA says could eventually exceed 1 gigawatt. The company’s own words explain why: “Power is the scarce input in AI.” A Bitcoin miner is repositioning itself as a power company, because in this economy, the thing everyone actually needs isn’t more Bitcoin. It’s more electricity.
The number that isn’t in the filing, and the one that is
Here’s the part I couldn’t find, and I looked. MARA pledged $1.2 billion in Bitcoin as collateral against two loans — one at roughly 7.5%, one fixed at 7.65% — and nowhere in the filing is there a maintenance ratio, a margin call threshold, a cure period, or a liquidation formula. Not disclosed to the public, and as far as the filing shows, not spelled out for MARA’s own shareholders either. Compare that to the power plant sitting on the other side of the ledger: it has a rate case. The transmission lines connecting it to the grid have a formula rate, set by regulators, on the record. The $785 million bridge loan that helped fund the Ohio purchase has covenants a court could enforce. Every asset in this story has a man, a committee, or a regulator who can change the terms — except the one MARA chose to sell.
In Ohio specifically, AEP’s own numbers show the gap between promised demand and paid-for demand: roughly 30,000 megawatts of data center interest in the pipeline, only 13,000 megawatts willing to fund a formal study, and just 5,642 megawatts that actually signed a binding 12-year contract under the state’s new tariff. More than four-fifths of the pipeline evaporated once someone had to put a name and a signature on the bill — and the 5,642 megawatts that remain is still larger than half of AEP Ohio’s entire historic peak demand, from every customer, combined.
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The one thing on this list without a man behind it
This is the pattern that shows up in every version of this story, whatever the door: the power plant has an owner. The transmission line has a regulator. The loan has a lender who wrote the terms. The dollar itself has a committee that meets eight times a year and decides what it’s worth. Even the newest idea in finance — tokenizing bonds, funds, and real estate onto faster digital rails — doesn’t change who’s holding the pen. A tokenized power contract is still a power contract with the same utility commission setting the same rate. Faster rails don’t remove the man. They just let him move faster.
Bitcoin is the one asset in this entire chain that was built without one. There are 21 million coins, fixed by the protocol since 2009, and the number doesn’t move whether a mining company needs a power plant, a grid operator needs more capacity, or a central bank needs to finance a deficit. Nobody sets a maintenance ratio on the 21 million. Nobody holds a rate case to change it. It is counted, the same way, roughly every ten minutes, by anyone in the world who wants to check — not measured, not surveyed, not estimated by a committee that answers to someone else’s budget.
Probability, never prophecy. That Bitcoin miners are now buying power plants isn’t proof of anything about where the Bitcoin price goes next, and anyone telling you otherwise on a Wednesday afternoon is selling something. What it is proof of: even the companies built entirely around mining a fixed, unownable asset need power badly enough to sell some of it, pledge the rest, and go buy a plant with an owner, a rate case, and a meter. That tells you something true about where the real scarcity in this economy actually sits right now — and it isn’t Bitcoin.
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“PJM is continuing to act like it’s business as usual. It is really a paradigm shift.”
— Joseph Bowring, President, Monitoring Analytics (PJM’s independent market monitor), to Utility Dive
The invitation, never the shove. Nobody needs to tell you whether your bill went up this year — you already know. What’s worth doing before the next auction clears is understanding why: a grid that’s short 6,831 megawatts, a market pinned at its legal ceiling for the third year running, and companies on every side of it — Bitcoin miners included — repositioning around the one input that’s actually scarce. Then decide, calmly, how much of your plan should sit on assets that answer to a rate case, a committee, or a boardroom, and how much belongs in the one asset that was built so none of them could ever hold the meter. Twenty-one million, fixed, forever. No servers, only a protocol.
Sources: PJM Interconnection, 2028/2029 Base Residual Auction results (announced 7/14/2026); Monitoring Analytics, “Analysis of the 2027/2028 RPM Base Residual Auction,” Part A (1/5/2026), and subsequent auction commentary via Utility Dive (7/20/2026); MARA Holdings Form 10-Q, Q2 2026 (filed 8/6/2026) and Form 8-K, Long Ridge acquisition (4/29/2026); MARA press releases, “full HODL” strategy (7/25/2024) and Long Ridge acquisition (4/30/2026); New Jersey Board of Public Utilities, rate order and public statement (2/12/2025); Union of Concerned Scientists, “Connection Costs” (Sept. 2025); Public Utilities Commission of Ohio, Case 24-508-EL-ATA (AEP Ohio data center tariff); Bernstein research via The Block (8/7/2026); Tim Talks Finance, “A Bitcoin Miner Just Bought Ohio’s Power Plant — Your Electric Bill Is the Business Model.” Educational content only — this is not financial advice. Bitcoin is volatile and can lose value; do your own research and consult a qualified professional before making any investment decision. One coin only: Bitcoin, the protocol.