AI Data Centers Have Adopted Long-Duration Energy Storage
Operators are shifting to systems that hold power for days, moving beyond the limits of short-term lithium-ion batteries.
Updated on Sept. 21, 2026 in Data Centers
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Tech companies are increasingly deploying long-duration energy storage technologies to power AI data centers in the United States. These systems aim to replace traditional diesel generators and natural gas turbines to help companies meet carbon emission reduction goals.
Why it matters
The transition addresses the energy-intensive demands of AI computing while bypassing multiyear supply chain delays for gas turbine installations. This shift marks a strategic move to secure reliable, long-term power without relying on fossil fuels.
Operators are testing systems capable of holding power for 10 to 100 hours, significantly outperforming conventional lithium-ion batteries that typically hold power for only a few hours.
The players
Alphabet Inc
A multinational technology conglomerate operating the Google cloud infrastructure and large-scale AI data centers.
Meta Platforms Inc
The technology company managing global social media platforms and extensive AI training clusters.
Energy Dome
A startup developing carbon dioxide-based energy storage systems for grid-scale power management.
Noon Energy
A developer of carbon-based long-duration energy storage solutions for large-scale industrial and data center applications.
Form Energy
A startup focused on manufacturing iron-air batteries designed for multi-day electricity storage.
The details
Noon Energy systems operate by splitting carbon dioxide into carbon compounds and oxygen to store renewable energy, later reversing the reaction to generate power. Separately, Crusoe is using iron-air batteries, which utilize the reaction between iron, water, and oxygen from the air to hold and discharge electricity for several days.
Timeline
Late 2024: Baseline established for planned storage installation data.
Beginning of 2025: Start of tracking for new long-duration storage projects.
- 2026-09-21
The current industry status for long-duration deployments.
The Tech Race
This move represents a departure from traditional reliance on diesel generators and gas turbines to meet carbon emission reduction pledges. Operators are now racing to integrate non-lithium technologies that provide power for days rather than hours, fundamentally altering the data center energy stack.
These storage systems will first reach large-scale AI data center sites before potentially influencing broader grid management strategies. While costs are currently high, developers expect prices to decline as technology adoption scales and more units are deployed.
The takeaway
The move toward 100-hour storage capacities signals an industry-wide effort to stabilize power for AI clusters. Readers should track upcoming project completion announcements and financial disclosures from storage startups to see if cost-profile expectations materialize at scale.
Further reading
For more on how infrastructure is evolving to support high-compute workloads, visit Data Centers.
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