Pioneering Sustainable Energy Storage Solutions
Honeywell and ESS Tech, Inc. have joined forces to accelerate the commercial deployment of Iron Flow Battery (IFB) energy storage systems. This strategic partnership, highlighted by Honeywell’s investment in ESS, melds ESS’s innovative IFB design with Honeywell’s expertise in advanced materials and energy systems, marking a significant stride towards addressing the renewable energy storage challenge.
“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.”
Bryan Glover, the Chief Growth Officer at Honeywell Performance Materials and Technology (PMT) group
Addressing the Long-Duration Energy Storage (LDES) Need
The global rise in renewable power generation underscores the crucial need for long-duration energy storage. The synergy between Honeywell and ESS aims to fill this gap, showcasing a sustainable approach to energy storage solutions.
With the current energy storage market valued at around $50 billion annually and expected to witness a cumulative investment of up to $3 trillion by 2040, the collaboration between Honeywell and ESS could significantly shape the market’s trajectory.

Step Towards a Sustainable Future
The IFB technology, utilizing earth-abundant materials like iron, salt, and water, offers a sustainable alternative to traditional lithium-based batteries, supporting the global shift towards clean energy.
The intermittency challenges of wind and solar energy necessitate reliable energy storage solutions. IFB technology aims to address this issue, enhancing the reliability of renewable energy sources.
Strategic Investment and Future Goals
Honeywell’s strategic investment in ESS is a major step towards encouraging innovation in the energy storage sector, with the goal of meeting the rising global demand for reliable and sustainable energy storage solutions.
- Global Energy Storage Market Value: $50 billion per year (current)
- Projected Cumulative Investment by 2040: Up to $3 trillion
- Materials Used in IFB Technology: Iron, Salt, Water
- Energy Storage Duration: Up to 12 hours
- Companies Involved: Honeywell, ESS Tech, Inc.
The partnership between Honeywell and ESS Tech, Inc. is more than just a corporate collaboration; it’s a union of vision and expertise aimed at catalyzing the global transition to renewable energy. By advancing the commercial deployment of IFB technology, this partnership not only has the potential to significantly influence the global energy storage market but also supports the broader narrative of sustainable and reliable energy solutions.