Wholesale electricity prices in the PJM Interconnection official site just spiked 75% in a single year, and datacenters are the main reason why. The region covers all or part of 13 states plus Washington D.C., stretching from Illinois to New Jersey, but the biggest pressure point is Northern Virginia. That’s where the world’s densest cluster of server farms has turned the local grid into a bottleneck, pushing costs from $77.78 per megawatt-hour in Q1 2025 to $136.53 in Q1 2026, according to Monitoring Analytics, the grid’s official market monitor report. The jump is the steepest in years and shows no sign of slowing unless something changes fast.

Datacenters are now the grid’s biggest customer

PJM serves 65 million people, but the math is simple: a single hyperscale datacenter can eat up 200 megawatts around the clock—enough to power 160,000 homes. Northern Virginia alone hosts more than 300 facilities, including Amazon’s AWS and Microsoft’s Azure campuses. Every new rack of servers means another long-term contract locking in power at today’s high rates, and regulators worry the trend will lock in higher bills for everyone else.

Watchdog warns the worst is still coming

Monitoring Analytics isn’t just reporting the spike—it’s sounding the alarm. In its latest state-of-the-market report, the firm says prices could keep rising unless PJM finds new sources of power or throttles demand. The watchdog points to two big risks: more datacenters are coming online just as older coal and nuclear plants retire. That leaves PJM increasingly reliant on natural gas and renewables, which cost more and can’t always deliver when the grid is under stress. Without new transmission lines or battery storage, the squeeze will get worse.

Who actually pays the bill?

The sticker shock on wholesale prices doesn’t hit most consumers directly—yet. Big datacenter operators often negotiate long-term, fixed-rate contracts that shield them from spikes. But smaller businesses and homeowners still foot the bill through higher delivery charges and fees baked into their utility bills. In some parts of PJM, local utilities have already asked regulators for rate hikes to cover the extra cost of buying power on the open market. If prices stay this high, expect more pushback from ratepayers and politicians eager to blame the tech giants.

The grid can’t keep up with AI’s hunger

The surge in power use tracks the explosion of AI workloads over the last two years. Training a single large language model can consume as much electricity as a small town for weeks. Once those models go live, running inference queries around the clock keeps the power drain steady. Northern Virginia’s datacenters aren’t just storing cat videos anymore—they’re running the models that power everything from search results to self-driving car simulations. PJM’s grid wasn’t built for this kind of load, and the region’s utilities are scrambling to upgrade substations and add new transmission lines, a process that can take five to ten years.

Politicians and regulators are starting to notice

Virginia’s governor has already formed a task force to study the datacenter impact on the state’s grid and water supplies. Lawmakers in other PJM states are pushing bills that would tax datacenters based on their power use or require them to pay for new renewable energy projects nearby. Meanwhile, PJM itself is studying ways to charge datacenters higher connection fees to help fund grid upgrades. These moves could slow the build-out of new facilities or push operators to pick greener power sources—but they’ll also make it harder for the region to stay the default home for the world’s digital infrastructure.

The grid can’t keep expanding overnight, and datacenters can’t just flip a switch to stop growing. That leaves PJM in a bind: either find new ways to generate and deliver power fast, or watch prices keep climbing—and the tech giants start looking for friendlier grids in Ohio, Texas, or overseas.

What You Need to Know

  • Source: The Register
  • Published: May 15, 2026 at 21:02 UTC
  • Category: Technology
  • Topics: #theregister · #tech · #enterprise · #datacenters · #prices · #interconnection

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Curated by GlobalBR News · May 15, 2026

🇧🇷 Resumo em Português

O Brasil já pode sentir os reflexos da mesma pressão que afeta os Estados Unidos: os datacenters estão consumindo tanta energia que, no maior mercado energético americano, os preços atacadistas da eletricidade dispararam 75% em apenas um ano. O fenômeno, que antes parecia restrito à potência global, agora acende um alerta também por aqui, onde a expansão acelerada da nuvem e da inteligência artificial exige cada vez mais infraestrutura elétrica robusta.

No Brasil, onde a matriz energética é majoritariamente limpa, mas a capacidade de geração já enfrenta gargalos em regiões estratégicas como o Sudeste, o crescimento dos centros de dados — impulsionado pela demanda por serviços digitais e pela chegada de gigantes como Google, Microsoft e Meta — começa a gerar tensões. A situação agrava-se em momentos de seca, quando hidrelétricas, principal fonte do país, operam abaixo da capacidade. Além disso, a precificação da energia no atacado pode sofrer pressões semelhantes às americanas, afetando desde empresas até consumidores residenciais, caso não haja um planejamento energético mais ágil.

A conta, no entanto, pode não ser apenas do bolso: especialistas já discutem como equilibrar a voracidade energética dos datacenters com a sustentabilidade e a justiça tarifária, exigindo políticas públicas que incentivem eficiência e fontes renováveis competitivas.

🇪🇸 Resumen en Español

El auge de los centros de datos en Estados Unidos ha disparado los precios de la electricidad en un 75% en solo un año en el mayor mercado energético del país, un fenómeno que amenaza con encarecer aún más la factura de los usuarios y reconfigurar el sector tecnológico.

La demanda descomunal de energía por parte de estas infraestructuras —vitales para el almacenamiento en la nube, la inteligencia artificial y el streaming— ha tensionado la red en la región gestionada por PJM, que cubre 13 estados y el Distrito de Columbia. Expertos advierten que, de mantenerse este ritmo, los costes podrían seguir escalando, trasladando la carga a hogares y pymes, mientras las grandes tecnológicas negocian contratos a largo plazo para asegurar su suministro. La situación refleja un desafío global: cómo equilibrar el crecimiento digital con la sostenibilidad energética en un mundo cada vez más dependiente de la nube.