Contract · Federal

Long-Duration Energy Storage (LDES) Battery System

Agency: ENERGY, DEPARTMENT OF / ENERGY, DEPARTMENT OF
Location: Idaho Falls, ID
Amount: Amount not listed
Posted: Aug 24, 2026
Set-aside: None (open competition)

Timeline

Posted

Aug 24, 2026
Status

Closing soon

What this contract is for

Agency: ENERGY, DEPARTMENT OF / ENERGY, DEPARTMENT OF
Location: Idaho Falls, ID
Scope: Federal

INTRODUCTION Idaho National Laboratory (INL) and Argonne National Laboratory (ANL) are seeking information from organizations that can provide long-duration energy storage (LDES) battery systems for benchmark performance testing at National Laboratory facilities.

This EOI aims to identify qualified technologies and suppliers, inform technical planning, and refine subsequent acquisition steps.

BACKGROUND Idaho National Laboratory (INL) and Argonne National Laboratory (ANL) are seeking LDES technologies that will undergo benchmark performance testing at their facilities.

Acceptable technologies include rechargeable electrochemical battery systems that: Can be configured into a module dimension, namely, 100-150 kWh, that can sustain 10-15 kW over ten hours.

LxWxH shall not exceed 7x7x7 ft.

Two such modules are sought.

Can be configured into a full-size dimension, namely, 1000-1500 kWh, that can sustain 100-150 kW over ten hours.

Anticipated dimension is one 40-ft shipping container, or two 20-ft containers.

One such full-size system is sought.

Can be operated between 0 to 50 ºC without more than 20% loss in power performance and 20% more aging (energy capacity loss) than that observed at a baseline condition of operating at 25 ºC.

Provide an AC/DC interface that facilitates testing and logging of all system parameters, Will arrive at INL and ANL sites as pre-built systems, with only minor connections required prior to operation, has a lifetime under typical field conditions of no less than fifteen (15) years (lifetime estimate basis to be disclosed).

It is required that data acquired from INL and ANL testing will be available for publication.

Unacceptable technologies include: Lithium-ion, Lithium metal, Lead-acid, Redox flow batteries, any non-rechargeable system, any non-electrochem...

Official solicitation and documents

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