Perfect Powerfor AI Factories.

ON.energy builds and operateshyperscale power systems to solvethe toughest resilience challenges.

The first medium voltage UPS purpose-built for grid-safe data centers.

ON.energy supplies and operates hyperscale power systems built to meet the world’s most demanding resilience challenges. From AI data centers to mission-critical facilities and grid-scale assets, ON delivers custom solutions powered by patented technology and proprietary software, setting new global benchmarks for reliability and uptime.

Bankable Hardware, Tier 1 Components

Built with Tier-1 components backed by 20-year warranties.

Gigawatt-Scale Supply Chain

Proven and fully ramped for global deployment.

U.S. Manufacturing, FEOC Compliant

Proudly engineered and built in America.

Fault-Tolerant Architectures

Designed for the world’s highest standards of uptime and resilience.

Testimonials

We reviewed every credible solution on the market. ON.energy’s AI UPS was the only technology that met the full interconnection and reliability requirements, and their team was by far the strongest we worked with. This is poised to become the new standard for connecting AI factories in America.

Chris Dolan

Chief Data Center Officer

Working with ON.energy has been a pleasure from day one. While we've faced challenges together - as expected on any major project - it's clear that their team is made from exceptional stock. The professionalism and attention to detail from everyone on the ON.energy side has been incredibly helpful in making this process as seamless as possible. We look forward to working with ON.energy on many future projects to come.

Clint Summers

PE Senior Director, Power Engineering

Our expertise

Complex Problems. Elegant Solutions.

We engineer custom solutions designed for the most demanding environments. Our expertise spans three critical problem areas.

AI Factories

Perfect power quality for grid-safe data centers

Mission-Critical Power Quality

Flickerless, full-facility protection for mission-critical systems

Grid Volatility

Distributed storage for a more stable grid

Our Performance

Performance Proven at Scale

Built for environments where uptime is non-negotiable, our technology delivers measurable reliability.

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3GW

3 GW+ Operating & Under Construction

delivering battery storage and uninterrupted power for AI data centers, mission-critical facilities, and the grid.

99.9 %

99.9% Uptime.

up to tier 4 performance for mission critical facilities. Industry-leading availability for BESS.

10+ GW Production Capacity

Operational and ready to power the largest deployments worldwide.

75+ Projects across the Americas.

Over 150 years of combined runtime, perfecting our craft.

Latest News

Stay up to date with the latest deployments, partnerships, and industry coverage. Our newsroom highlights the milestones shaping ON.energy and the markets we serve.