Honeywell and ESS Tech, Inc. Collaborate to Accelerate Commercial Deployment of Iron Flow Battery Energy Storage Systems

CHARLOTTE, NC and WILSONVILLE, OR – September 25, 2023 - Honeywell (Nasdaq: HON) today announced a strategic collaboration with ESS Tech, Inc. (“ESS”) (NYSE: GWH) to advance technology development and market adoption of iron flow battery (IFB) energy storage systems. Honeywell will make an investment in ESS as part of this collaboration.

The relationship builds upon each company’s development of energy storage systems, and brings together ESS’ market-leading, patented IFB design with Honeywell’s advanced materials and energy systems expertise.

“The demand for long-duration energy storage represents a compelling market opportunity within the energy transition and the combination of Honeywell and ESS technology can accelerate decarbonization for the commercial, industrial and utility sectors,” said Bryan Glover, chief growth officer, Honeywell Performance Materials and Technology (PMT) group. “Our strategic collaboration with ESS will accelerate Honeywell’s ability to bring comprehensive solutions to our customers while working to advance long-duration energy storage across all industries requiring expansive energy storage.”

“Today, we are creating superior technology in the critical long-duration energy storage industry,” said Eric Dresselhuys, CEO of ESS. “Combining ESS’ innovative technology and deployment experience with Honeywell’s storage and control system expertise will enable us to drive the clean energy transition and deliver value to our customers, shareholders and communities.”

Honeywell and ESS are working together to meet growing global demand for long-duration energy storage (LDES), driven by the rapid increase in renewable power generation.  This is creating a substantial and fast-growing market as countries worldwide transition to zero carbon energy. The current global energy storage market is estimated to be $50 billion per year and is forecast to grow significantly with a cumulative investment of up to $3 trillion by 2040, according to the LDES Council and McKinsey & Co.

As the shift to renewable energy accelerates, challenges associated with the intermittency of wind and solar energy are becoming more apparent. Safe and sustainable IFB technology enables the transition to clean energy using Earth-abundant materials – iron, salt and water – to provide energy storage without reliance upon limited minerals such as lithium, cobalt or vanadium.

About Honeywell:

Honeywell (www.honeywell.com) is a technology company that delivers industry-specific solutions that include aerospace products and services; control technologies for buildings and industry; and performance materials globally. Our technologies help aircraft, buildings, manufacturing plants, supply chains, and workers become more connected to make our world smarter, safer, and more sustainable. For more news and information on Honeywell, please visit Honeywell | Newsroom.

About ESS Inc.:

At ESS (NYSE: GWH), their mission is to accelerate global decarbonization by providing safe, sustainable, long-duration energy storage that powers people, communities, and businesses with clean, renewable energy anytime and anywhere it’s needed. As more renewable energy is added to the grid, long-duration energy storage is essential to providing the reliability and resiliency we need when the sun is not shining, and the wind is not blowing.

ESS technology uses earth-abundant iron, salt and water to deliver environmentally safe solutions capable of providing up to 12 hours of flexible energy capacity for commercial and utility-scale energy storage applications. Established in 2011, ESS Inc. enables project developers, independent power producers, utilities and other large energy users to deploy reliable, sustainable long-duration energy storage solutions. For more information visit www.essinc.com.