PJM to curtail power to large data centers starting mid-2027

The streaming industry’s reliance on high-density compute for transcoding, CDN delivery, and AI-driven personalization is now hitting physical infrastructure limits. For streaming platform operators and cloud providers, this transition from 'guaranteed' to 'curtailable' power introduces significant operational risk and potential service latency during peak grid stress. To maintain 99.9% uptime, infrastructure leads must now prioritize on-site energy storage, microgrids, or costlier backup generation within the PJM footprint. Watch for a shift in data center site selection toward regions with underutilized grid capacity or more favorable co-location regulations to avoid mid-2027 Reliability Requirement shortfalls.

The PJM curtailment plan follows a period of extreme volatility in the region's capacity markets. In July 2025, PJM’s capacity auction for the 2026/2027 delivery year saw clearing prices surge to $329.17 per megawatt-day, a nearly nine-fold increase from the 2024/2025 rate of $28.92, according to reporting from IEEFA and Synapse Energy. Analysts from these firms attributed roughly 63% of this price spike to surging data center demand, which added billions in costs now being recovered through higher utility rates. Federal regulators at FERC further noted in July 2026 that PJM’s overall reliability target fell roughly 7,000 MW short in recent procurement cycles, intensifying pressure for load-reduction mandates.

In response to this strain, Virginia—the world’s largest data center hub—became the first state to impose a specific electricity consumption tax on facilities. Effective July 1, 2026, the commonwealth began levying 1.1 cents per kilowatt-hour on data center energy use, as reported by Forbes and Inside Climate News. This tax is explicitly designed to generate revenue from an industry that previously benefited from deep sales-tax exemptions while stretching the grid to its breaking point. State regulators estimate the levy could generate up to $600 million annually, marking a definitive end to the era of low-cost, unrestricted power for large-scale digital infrastructure.

Simultaneously, federal authorities are moving to decouple data centers from the public grid through co-location. Per FERC filings from June 2026, the commission issued "show-cause" orders directing PJM and five other regional grid operators to reform their tariffs. These reforms prioritize "behind-the-meter" generation and direct connections between data centers and power plants, such as nuclear sites. This regulatory shift aims to allow hyperscalers to expand their compute capacity without triggering expensive transmission upgrades or competing with residential consumers for existing supply, effectively creating a two-tier energy market for high-density infrastructure.