High-rate lithium battery units for on-site data center power.

Ark Energy designs high-rate lithium battery units for on-site data center power, each built to the customer’s specification. Every unit is traceable to the serial numbers of its cells and components. The next step is a pilot production line in the United States.

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Ark Energy · Assembly sequence

Concept render of a rack battery unit. Each unit is built to the customer’s specification.

AI is pushing data centers to build their own power, and that power needs batteries.

U.S. data centers used 4.7% of the country’s electricity in 2024. Lawrence Berkeley National Laboratory expects that share to reach about 11.8% by 2030, with AI servers using more than half of it.

Where the grid cannot keep pace, operators are adding power on site, and those systems need batteries that pick up the full load the moment utility power drops. Most of those batteries, and most of the cells inside them, are made overseas.

Ark is building its production line to meet that demand.

Share of U.S. electricity used by data centers

AI servers, 55% of data center electricity in 2030

Source: Lawrence Berkeley National Laboratory for the U.S. Department of Energy, United States Data Center Energy Usage Report: 2025 Update, June 2026. Reference case.

A battery unit built for high-rate duty

Utility storage releases its energy slowly, over hours. A data center backup battery has the opposite job: it carries the site’s full load for the minutes it takes on-site generation to start and take over. Whether a unit can do that comes down to pack design: current limits, bus bar sizing, and thermal design.

Ark builds each unit to the customer’s specification, including its battery management system (BMS): one that Ark designs or sources and has built to the customer’s requirements, or the customer’s own. Either way, the BMS communicates with the site’s power conversion system (PCS) and energy management system (EMS). The same team designs and ships LFP battery packs today, through the Precision Power line.

Unit specification

Chemistry: High-power or high-energy lithium cells, including LFP with high C-rate cells
Duty: High-rate discharge for on-site backup and bridging power
Configuration: Built to the customer’s specification
Battery management: A BMS that Ark designs or sources to the customer’s requirements, or the customer’s own
Cells: Qualified manufacturers today, moving to U.S.-made cells
Traceability: A serial number on every cell, BMS, and critical component, recorded in each finished unit’s record
Certification: Each custom build is designed to be able to pass UL and UN certification
Testing: In-line quality checks, an end-of-line aging test, and a final check before shipment

Every unit can be traced, and every unit is tested

A data center operator needs to know exactly what is installed in its building. Ark’s process records when each unit was built, what went into it, and how it tested.

A serial number on every cell and component

Every cell, BMS, and other critical component carries a unique serial number. Each finished unit gets a lot number and a date and time stamp, and its record lists the serial number of every part inside it, so a question about one part leads straight to every unit that contains a part from the same batch.

Sample label layout. Each field is filled in when the unit is built.

Tested three times before it ships

1
On the line
In-line quality checks during assembly, before the unit is closed.
Record 1
2
End-of-line aging
An aging test against the customer’s specification.
Record 2
3
Before shipment
Checked again before it leaves the floor.
Record 3

The test records and a certificate of conformance ship with every unit, so the customer’s file is complete on delivery.

A planned path to U.S.-made cells

Ark’s cell supply moves in three phases. Each new source runs alongside the one before it for about six months before it takes over, so customers are never moved onto cells that have not been qualified.

1 Cells from qualified manufacturers

2 U.S.-made cells from third parties

3 Ark’s own cells

Where Ark is today

Ark is an early-stage company. This is where the work stands.

In hand
Unit design
Based on the LFP packs the team ships today.
Next
Pilot production line
In the United States.
Planned
Production orders
First customer orders run on the pilot line.
Planned
Full production
Follows the pilot line’s first orders.

Why work with Ark

For customers: why build with Ark

Built for high-rate duty: The pack, bus bars, and thermal design are sized to carry a full site load, which is a different job from slow utility storage.
A BMS built to your requirements: Ark designs or sources a BMS and has it built to your specification, so it communicates with your PCS and EMS. Or Ark builds the unit around your own BMS, including one you direct Ark to buy.
Every unit documented: Serial numbers on every cell and critical component, three test stages, and a certificate of conformance with every unit.
A planned cell supply: A phased move toward U.S.-made cells, with each source overlapping the next.

For our first customers

First position on the pilot line’s output, a working session with Sid Pandya, Ark’s co-founder, to set your specification, acceptance testing written into your supply terms, and advance notice of any change in cell source.

For investors: why back Ark

Documented demand: Federal research expects data centers to use about 11.8% of U.S. electricity by 2030, and the batteries for on-site power are mostly made overseas.
A team that has done this: Decades of plant scale-ups on the operations side and a decade of battery pack engineering, including Tesla, on the technical side.
Engineering already in use: The team designs and ships LFP battery packs today, and the data center unit builds on that work.
A staged plan: The pilot line comes first and is proven on its first customer orders before the full plant is built.

Talk to Allen

Ark is raising capital for the pilot line and then the full plant. Allen Beard can take you through the plan, the team, and the numbers under a mutual NDA.

Leadership

Allen Beard

Co-founder and Chief Executive Officer

Allen brings more than 32 years of manufacturing operations, process scale-up, and business leadership experience to our team. Throughout his career, he has successfully guided complex manufacturing programs from pilot-stage development to full-scale production.

His experience includes leading a Degussa joint venture’s precious metals and ceramic catalyst plant from pilot operations to commercial manufacturing, as well as managing a Degussa-RAG program through startup, process development, and manufacturing installation. He also provided manufacturing quality automation expertise to support Toyoda Gosei’s expansion efforts, including facilities in Hopkinsville, Kentucky, and Perryville, Missouri.

In addition to his corporate leadership experience, Allen co-founded a CNC tooling company and later acquired and scaled Precision Sonar & Outdoors, a Kentucky-based manufacturer. His unique combination of technical expertise, operational excellence, and entrepreneurial leadership strengthens our team’s ability to execute manufacturing growth strategies, optimize production systems, and successfully commercialize innovative technologies.

Sitanshu (Sid) Pandya

Co-founder

Sid has spent 10 years taking battery products from design into high-volume manufacturing, and he leads how Ark’s units are designed, built, and tested. His work runs from lithium-ion cell design to complete battery packs, including battery management, thermal systems, and the welding processes that join them.

At Tesla, Sid set up the quality controls and led metrology for the Cybertruck battery pack, through factory and site acceptance testing of its production line, and sustained high-volume Supercharger cable lines built for North America, Europe, and Asia. He later worked in lithium-ion cell product design. Most recently, he has led new-product quality and reliability engineering for EV battery interconnect systems.

Earlier, as a research engineer, he took new products from prototype to a proven pilot line, commissioning the equipment and its quality controls. That is the work in front of Ark: a new pack design, a pilot line, and the quality system that carries both into full production.

Common questions

What does Ark Energy make?

Ark Energy (ArkEnergy Solutions, LLC) designs and builds high-power and high-energy lithium battery units for on-site data center power. Each unit is built to the customer’s specification to carry the site’s full load for the minutes it takes on-site generation to start and take over, and each custom build is designed to be able to pass UL and UN certification. Ark is an early-stage U.S. company.

Why does data center backup power need high-rate batteries?

A data center backup battery has to deliver the site’s full load the moment utility power drops, then hold it until on-site generation takes over. That calls for high discharge rates over minutes, not a slow release over hours as in utility storage, so the pack’s current limits, bus bar sizing, and thermal design decide whether it can do the job.

Can Ark design a battery management system to our requirements?

Yes. Ark designs or sources a battery management system (BMS) board and has it built to your specification, so it communicates with your power conversion system (PCS) and energy management system (EMS).

Can Ark’s units use our own battery management system?

Yes. Ark can build the unit around your own BMS, to your requirements and specifications, or buy the BMS you specify and integrate it into the unit.

Where are Ark’s units built, and where do the cells come from?

Ark is building a pilot production line in the United States. The cells come first from qualified manufacturers, then from U.S. cell makers, and later from Ark’s own cell production. Each new source runs alongside the one before it for about six months, to keep the risk of each change low.

How does Ark test and trace each unit?

Every unit is traceable end to end. Every cell, BMS, and other critical component carries a unique serial number that is recorded in the finished unit’s record. Each unit goes through in-line quality checks, an end-of-line aging test against the customer’s specification, and a final check before shipment, and a certificate of conformance ships with every unit.

Is Ark Energy raising investment?

Yes. Ark is raising capital for its pilot production line and then its full plant. Investors can reach Allen Beard, Ark’s CEO, through the contact form, and the plan is shared under a mutual NDA.

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