One Power Line, 3 GW, and a Grid in Peril

Data centers are the backbone of AI, supporting applications from healthcare to logistics. Their demand for power is a sign of their importance: AI workloads, especially training models, are energy-intensive and computationally demanding. But the ON.Energy system offers a promising way to absorb these disruptions. By deploying battery-backed systems that stabilize power demand, data centers can become grid-friendly. ON.Energy’s technology, which is being installed at four campuses totaling 3 gigawatts, smooths the spikes and dips that currently destabilize grids. This means data centers could continue to support AI growth while minimizing their impact on infrastructure. Moreover, the potential is transformative: by 2040, data centers are projected to account for 24% of the PJM grid’s load. Innovations like these could enable that growth without constant grid crises, advancing both AI and energy resilience.

The grid's fragility isn’t just a technical issue—it’s a systemic one. Data centers are already 6% of PJM’s load, and their share is expected to quadruple by 2040. This growth demands massive investments in grid infrastructure, from transmission lines to backup power systems. Meanwhile, ON.Energy’s solutions, though effective, aren’t cheap. Retrofitting campuses with battery systems and power converters requires significant capital, and those costs often fall on data center operators—who may pass them to cloud service customers. Even ERCOT’s planned regulation for 'ride through' capability will likely increase costs for data centers operating in Texas. But the biggest cost may be the missed opportunity to decouple AI’s growth from its energy footprint. If AI continues to rely on energy-hungry data centers without broader adoption of renewables or efficiency measures, we risk locking in a high-carbon, high-cost future.

Data centers are not new to grid strain. The 2024 event on PJM’s grid, when 1.5 gigawatts disappeared due to 60 data centers disconnecting, was an earlier warning. Back then, they were 6% of the load; now they’re 3% higher and growing. The U.S. grid is already under pressure from electrification, renewables integration, and aging infrastructure. ERCOT’s proactive regulation shows some utilities are preparing, but PJM’s experience suggests grid managers can’t wait. ON.Energy’s installations are a step forward, but adoption is far from universal. This week’s incident underscores the urgency of creating grid-resilient data centers before these crises become routine.