ESS Inc.

Recently, we spoke with John Kilcoyne, Director of Engineering, to discuss how ESS implements lessons learned from existing long-duration energy storage deployments into new solutions, such as our grid-scale Energy Base™, maximizing customer value across green base load needs, utility-scale distributed energy resources, and data center applications. Learn more about our gigawatt-scale, long-duration energy storage solution at: 👉 hubs.li/Q03pkBtM0.

Our iron flow technology, made in Wilsonville, OR, is powering battery storage projects not just in the U.S. but worldwide: 🌎Today, we have deployed LDES systems on three continents. 📅Field-proven ESS storage solutions are available today and can be deployed in months, not years. 🦺Our technology can be safely deployed anywhere from densely populated neighborhoods to regions prone to wildfires or other natural disasters. 🔋Iron flow technology is engineered for flexibility and scale to meet future energy storage demand. We take pride in pioneering iron flow battery technology—discover more at hubs.li/Q03mS6SS0.

In today's evolving global economy, U.S.-made energy storage technology, made with domestically sourced materials, is vital to ensure security of supply. ESS' long-duration energy storage (LDES) products are manufactured domestically in the U.S. using widely available and sustainable materials, such as iron, salt, and water. 🌍 Unlike competing energy storage solutions, our iron flow technology does not depend on rare minerals or hard-to-source components. This facilitates rapid deployment for your next project while reducing the risk of supply chain disruptions. 🚀 Ready to secure your next project? Learn more: 👉 hubs.li/Q03lKxrR0

Join us next week at the 2025 Energy Thought Summit in sunny San Antonio, where John Thomas, VP of Product Management and Product Strategy, will share his deep industry knowledge and expertise as a featured panel speaker! 🗓️ Date: Monday, May 19, 2025 🕥 Time: 10:30 AM CT 📍 Session: "Redefining Utilities: Innovation, Partnerships, and New Business Models Driving the Future" Don't miss out on this opportunity to hear unique insights from veteran and emerging industry leaders shaping the future of energy. Learn more and secure your spot: hubs.li/Q03mxDj20.

🌍🔋 A recent survey of 149 senior data center professionals revealed a staggering 44% are facing utility wait times exceeding four years for new project connections. With such delays becoming the norm, the shift towards on-site energy generation and long-duration energy storage (LDES) is more critical than ever for the industry to scale. Discover how innovations like ESS' Energy Base™ can power data centers with unparalleled flexibility and cost effectiveness compared to other LDES technologies: hubs.li/Q03mlbw90

Building a clean, resilient energy infrastructure will require significant long-duration energy storage (LDES) to meet growing demand from AI data centers and enable intermittent energy sources to provide 24/7 green baseload power. 🌍⚡️ Our field-proven iron flow technology delivers unlimited cycling with zero capacity degradation over a 25-year design life. This means our solutions can be charged and discharged multiple times each day, providing our customers the flexibility to serve multiple use cases with the same asset and optimize the value of excess clean energy. Curious about the cost and performance advantages of our LDES offerings? Visit: 👉hubs.li/Q03lTPX60

At ESS, we're redefining long-duration energy storage with our safe, grid-scale iron flow technology—built with earth-abundant, domestically sourced materials and designed to support growing demand from AI data centers and our increasingly electrified society. 🌍 No rare minerals ⚡ Up to 12 hours of energy storage 🔁 25+ year lifespan with no capacity fade Discover the chemistry behind our technology: 👉 hubs.li/Q03lH4D00

A recent study of data center executives highlights the industry’s growing “time to power” challenge, prompting a shift towards alternative solutions to traditional grid power. 44% of respondents said their quoted utility wait times are longer than four years. Consequently, data center operators and businesses are in a unique position to drive this transition to sustainable energy and cannot afford to wait. When paired with solar or other generation sources, ESS’s field-proven iron flow technology can accelerate the deployment of new data center facilities by mitigating interconnection delays and freeing hyperscalers from the constraints of traditional grid power. With onsite long-duration energy storage (LDES) that offers up to 22 hours of backup energy, it allows for unprecedented flexibility in establishing new locations. Learn more about how ESS’s technology, powering our new Energy Base™ product, can meet your data center project needs by visiting: hubs.li/Q03kMz8y0.

This Thursday, join ESS’ Aram Zamgochian, Senior Director of Government Relations, for Camelot Energy Group’s webinar on non-lithium energy storage technologies. Aram will share his insights on how innovative technologies, strategies, and the evolving policy landscape are shaping the energy industry. Don’t miss this dynamic discussion among industry leaders about the future of advanced energy technologies. 📅 Save the date and register now: hubs.li/Q03kmhbK0

Low cost, intermittent renewable resources like wind and solar are leading the charge in new energy generation capacity. However, the U.S. needs grid-scale long-duration energy storage to fully harness their potential and ensure grid stability. Our new Energy Base™ can help meet the energy demands of our increasingly electrified world and AI data centers. 🌍⚡️ Ready to learn more about how ESS' iron flow technology helps deliver 24/7 green baseload energy? Visit hubs.li/Q03jYbVf0.

At the heart of our new gigawatt-hour-scale long-duration energy storage solution (LDES), the Energy Base™, lies a powerful modular building block known as the Iron Core. With the ability to customize power and discharge durations, the Energy Base maximizes project flexibility and can be scaled up quickly as demand grows in our increasingly electrified society. John Kilcoyne, Director of Engineering, shares how our engineering team implements lessons learned from existing deployments and brings customer feedback to our new system-level solutions to maximize customer value across green base load needs, utility-scale distributed energy resources, and data center applications.

Our innovative, scalable solutions are pushing the boundaries of what’s possible in long-duration energy storage (LDES). ESS' latest American-made LDES solution, the Energy Base, is designed to meet the increasing demands for energy storage at GW scale. Join Thiago Groberg, Senior Manager of Controls, as he discusses how it can scale to fit your unique energy needs.

At ESS, we’ve been on a journey of continuous improvement, steadily increasing the capacity of our long-duration energy storage (LDES) solutions and developing new product lines that deliver scalable, cost-effective storage to meet today's energy challenges. At the core of our innovative technology is our iron- and water-based electrolyte. Curious about what’s next? Check out the latest insights from our R&D Manager, Ezekiel Sherbourne, as he shares exciting developments in advancing our iron flow chemistry.

At ESS, we are proud to build advanced, long-duration energy storage solutions here in the United States. We manufacture all our core tech in Wilsonville, OR, supporting battery storage projects in the U.S. and worldwide. Learn more about our commitment to American energy dominance from Chris Montgomery, Senior Vice President of Supply Chain at ESS. #MadeInAmerica #EnergyDominance $GWH

Energy technologies #MadeinAmerica have a lower environmental impact than those manufactured in many other countries thanks to our cleaner power grid and stronger environmental standards. At ESS, we are proud to manufacture and deliver energy storage solutions with the lowest lifecycle carbon footprint of any competing technology right here in the U.S. The #ForeignPollutionFeeAct levels the playing field to ensure global manufacturers cannot take advantage of lax environmental standards to cut costs at the expense of local populations, the environment, and American manufacturers. @SenBillCassidy #FPFA #EnergyDominance

Energy demand from #AI #datacenters is expected to increase 165 percent by 2030. ESS delivers American-made long-duration energy storage solutions, built leveraging a 98% American supply chain, to quickly meet these needs without the risks associated with global supply chains. hubs.li/Q03gj3CH0 #MadeinAmerica #EnergyDominance $GWH

ESS’ long-duration energy storage solutions are manufactured in the United States, leveraging a 98% American supply chain. We are proud to deliver American-made batteries to customers across the U.S. and worldwide to ensure energy security and resiliency without the cost and security risks associated with foreign supply chains. Our secure, sustainable #LDES solutions will support the rapidly growing energy needs of AI data centers and will help re-establish American Energy Dominance at home and abroad #AmericanMade #EnergyDominance $GWH

ESS is leading the charge toward a cleaner, more reliable energy future. Join Interim CEO Kelly Goodman as she shares her thoughts on the company's recent awards from @TIME and @FortuneMagazine and the bright future for ESS.

With its pioneering iron flow long-duration energy storage technology, ESS has been honored as one of @TIME's Top GreenTech Companies in America 2025 and recognized by @FortuneMagazine as one of the Most Innovative Companies in America 2025! Our substantial intellectual property portfolio, featuring 103 awarded patents and 214 pending applications, was crucial in achieving these prestigious accolades. "We are honored to be recognized as a leader in green technology and innovation," shared Kelly Goodman, Interim CEO. "This recognition underscores our commitment to research and development and the commercialization of safe and sustainable iron flow technology." Thank you to our dedicated team of scientists, engineers and partners for your unwavering support and dedication. Your hard work has made our safe, sustainable, cost-effective, long-duration energy storage a reality, powering communities, industries, and businesses with clean, renewable energy anytime and anywhere it's needed. Read the full story at: hubs.li/Q03fkK7g0

ESS is pleased to participate in the American Public Power Association (APPA)'s 2025 Engineering & Operations conference. If you're attending, don't miss James Naviaux, director of global partnerships, as he discusses the pivotal role of long-duration energy storage (LDES) in helping utilities plan for the future. Learn how ESS is empowering partners like Burbank Water & Power to provide their communities with reliable, dependable power for the long term.