Eos Energy Enterprises Receives First Purchase Order Under 2 GWh Agreement For Texas Redbird Storage Project

Eos Energy Enterprises has announced the first purchase order under its previously established 2 GWh capacity reservation agreement with Frontier Power USA Parent, LLC (FPUSA), marking an important milestone for the deployment of long-duration energy storage in the United States. The order will support the development of the Redbird project, a 100 MW / 400 MWh battery energy storage facility that will utilize Eos’ zinc-based Z3™ energy storage technology.

The Redbird project is being developed for the Electric Reliability Council of Texas (ERCOT) market, which operates one of the largest and fastest-growing electricity grids in the United States. Originally developed by Bimergen Energy, and previously by Bridgelink, the project had already been approved under a Joint Development Agreement with Eos, with the company’s Z3™ technology selected as the preferred storage solution.

Under the latest arrangement, FPUSA and its affiliated entities have acquired the project and will provide the full equity financing required for construction. Bimergen will retain a minority economic interest in the project and will continue working alongside FPUSA to support its development through to commercial operation.

The purchase order represents the first deployment under the broader 2 GWh capacity reservation agreement between Eos and FPUSA. It also demonstrates the business model that FPUSA has established, which focuses on identifying promising energy projects, securing the capital needed to advance them, and moving them from development into operation.Nathan Kroeker, Chief Commercial Officer of Eos, said the Redbird project is the result of years of collaboration with Bimergen to advance projects through the development process.

He noted that FPUSA’s role is to provide the financial resources needed to transform development opportunities into operating assets, making Redbird one of the first examples of this model being successfully executed.The project highlights growing demand for long-duration energy storage solutions in Texas, where increasing renewable energy generation and rising electricity demand are creating new requirements for flexible and dispatchable energy resources.

Designed as a four-hour battery storage system, Redbird will be capable of storing electricity and releasing it when needed, helping balance supply and demand across the grid.The facility is expected to support a range of grid services, including energy shifting, ancillary services, and overall grid reliability.

By storing electricity during periods of excess generation and delivering it during times of higher demand, the project can help improve grid stability and support the integration of renewable energy resources.Bimergen selected Eos’ Z3™ technology because of its suitability for multi-hour storage applications, which are becoming increasingly important in electricity markets such as ERCOT.

Unlike conventional lithium-ion systems, Eos’ storage technology is based on zinc and is manufactured in the United States, supporting domestic supply chain development while addressing concerns related to long-duration storage, safety, and reliability.Cole Johnson, Co-Chief Executive Officer of Bimergen Energy, said the Redbird project was developed in response to growing demand for dispatchable storage capacity within the ERCOT market.

He explained that the combination of Eos’ storage technology and FPUSA’s financial backing has enabled the project to move from the development phase toward becoming a fully operational energy asset.FPUSA was specifically established to address a common challenge in the energy sector: bridging the gap between project development and project execution.

According to Aaron Maczonis, Managing Director at Cerberus Capital Management, FPUSA works with leading developers to build a portfolio of high-quality energy projects while providing the capital necessary to bring those projects online. He noted that the organization is focused on transforming late-stage development opportunities into operating infrastructure assets capable of meeting growing energy demand.

The Redbird order also contributes toward existing supply agreements involving Eos. The project’s volume will count toward the 2 GWh firm capacity reservation agreement between FPUSA and Eos. In addition, the order brings Eos closer to fulfilling its previously announced 1 GWh master supply agreement with Bridgelink, with nearly half of that commitment now satisfied.Beyond Redbird, Eos continues to expand its long-duration energy storage pipeline across several major U.S. electricity markets.

The company reports that it is advancing an additional 12 GWh of project opportunities spanning ERCOT, PJM, CAISO, and MISO, reflecting growing demand for energy storage solutions that can support grid reliability, renewable energy integration, and long-term energy security.

As electricity demand continues to rise and renewable energy deployment accelerates across the United States, projects such as Redbird are expected to play an increasingly important role in providing flexible, dispatchable storage capacity.

The agreement between Eos, FPUSA, and Bimergen demonstrates how technology developers, project sponsors, and financial partners are working together to accelerate the deployment of long-duration energy storage infrastructure and strengthen the resilience of modern power systems.