By joining as a member, you are part of a global ecosystem, a global force driving the energy transition forward for communities and industries worldwide.
Anchor Members
Leading companies or organizations invested in the energy transition and LDES.




















AirTrunk is a leading hyperscale data centre specialist delivering essential infrastructure to scale the Asia-Pacific & Middle East’s digital future, accelerated by cloud and artificial intelligence. The company’s growing data centre platform meets the needs of the world’s most transformational companies, delivering customers a scalable data centre solution at a significantly lower build and operating cost than the market. AirTrunk creates shared value with communities by embedding sustainability through industry-leading energy and water efficiency, renewable energy solutions, and its social impact program. A private company, AirTrunk is well capitalised to fund development of hyperscale data centres across the region, including its groundbreaking sustainable financing platform.
More information at https://airtrunk.com/
“As data centres become the backbone of an increasingly intelligent world, at AirTrunk we firmly believe energy innovation will play a pivotal role in powering digital infrastructure sustainably and creating long-term value for our communities. By joining the LDES Council, AirTrunk is proud to collaborate with our peers, governments, and energy stakeholders in advancing long duration energy storage solutions that will accelerate the transition to a carbon-free future.”

Jose Castaneda

Alfa Laval is a leading global provider of products and solutions within heat transfer, separation and fluid handling, active in the areas of Energy, Marine, and Food & Water, offering its expertise, products, and services to a wide range of industries in over 100 countries. Alfa Lava’s innovative technologies are dedicated to purifying, refining, and reusing materials, promoting more responsible use of natural resources. They contribute to improved energy efficiency and heat recovery, better water treatment, and reduced emissions. Alfa Laval has 16,700 employees, annual sales of appr. EUR 4 billion (2020) and is listed on Nasdaq OMX.
More information at www.alfalaval.com/about-Us
“Alfa Laval joined this great initiative at an early stage as part of our commitment to this dawning industry. Now we need to set a joint fact base and communicate the benefits of LDES – for the power industry, for the climate and the planet. Many LDES technologies require heat exchangers, and we have the products and expertise to ensure the best possible efficiency. We look forward to continuing to build relationships to help drive this forward.”

Thomas Moller

Amazon is guided by four principles: customer obsession rather than competitor focus, passion for invention, commitment to operational excellence, and long-term thinking. Amazon strives to be Earth’s Most Customer-Centric Company, Earth’s Best Employer, and Earth’s Safest Place to Work. Customer reviews, 1-Click shopping, personalized recommendations, Prime, Fulfillment by Amazon, AWS,
Kindle Direct Publishing, Kindle, Career Choice, Fire tablets, Fire TV, Amazon Echo, Alexa, Just Walk Out technology, Amazon Studios, and The Climate Pledge are some of the things pioneered by Amazon. For more information, visit amazon.com/about and follow @AmazonNews.
“At AWS, we’re committed to leveraging our scale and innovation to accelerate the transition to a sustainable, carbon-free future. Long-duration energy storage is a critical component in achieving this goal. By joining the LDES Council, we’re excited to collaborate with industry leaders to drive advancements in energy storage technologies that will enable greater integration of renewable energy and support our mission to reach net-zero carbon by 2040.”

Lindsay McQuade

ExxonMobil manages an industry-leading portfolio of resources, and is one of the largest integrated fuels, lubricants and chemical companies in the world. By applying our expertise in scale, integration, operations and technology, the people of ExxonMobil are working to produce vital energy and products, reduce greenhouse gas emissions, and create sustainable value for society. With operations in more than 60 countries globally, our team of 62,000 is focused on safely meeting the world’s energy needs and leading the industry in innovations to advance modern living and a net-zero future.

William Moore

In 2017, Google became the first company of its size to achieve 100% annual renewable energy matching. To achieve full decarbonization, Google is aiming for 24/7 carbon-free energy by 2030. That means sourcing local clean energy for every hour of operations, everywhere. Google is actively collaborating across industries to accelerate innovation in three areas: electricity purchasing and consumption; carbon-free energy technologies; and policy advancements that drive clean energy access and adoption.
“At Google, we know that achieving 24/7 carbon-free energy will require improving and diversifying our technological toolkit, and we view long duration energy storage as a key pillar on the path to a carbon-free future. We are glad to be an anchor member of the LDES Council, to help accelerate innovation and deployment in this important space.”

Maud Texier

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. The company has been carbon neutral across the world since 2012 and commits to being carbon negative by 2030. Our goal is to promote sustainable development and low-carbon business practices globally through our sustainable *business practices and cloud-enabled technologies.*
“Our customers look to us to lead in the industry in sustainability. Decarbonizing hard-to-abate industries and technologies will be essential to achieving our carbon reduction goals by 2030, and Long Duration Energy Storage solutions could play an important role in delivery of flexible power to enable renewables.”

Oz Morales

MN8 is a renewable energy company with a more than 2.4 gigawatt solar fleet comprised of 850 projects across 27 states and over 27 megawatts of battery storage projects, making MN8 one of the largest independent solar energy and energy storage power producers in the U.S. MN8 is headquartered in New York with offices in Boca Raton, Florida, and Madrid.
“At MN8 Energy, we are thrilled to join forces with the LDES Council in its mission to lead enterprises on their journey towards a decarbonized world. Long-duration energy storage plays a pivotal role in the clean energy landscape, enhancing our capacity to harness renewable energy sources efficiently. By partnering with the LDES Council and its distinguished members, we are committed to expediting the adoption of pioneering energy solutions, facilitating the transition towards a net-zero future. We can help forge a brighter, more sustainable path for all enterprises.”

Tim Seck

The Orsted vision is a world that runs entirely on green energy. Orsted develops, constructs, and operates offshore and onshore wind farms, solar farms, energy storage facilities, and bioenergy plants, and provides energy products to its customers. Orsted ranks as the world’s most sustainable energy company in Corporate Knights’ 2022 index of the Global 100 most sustainable corporations in the world and is recognised on the CDP Climate Change A List as a global leader on climate action. Headquartered in Denmark, Orsted employs 6,672 people.
“Energy production and use are responsible for 73% of global greenhouse gas emissions. So, transforming the way we power our world is one of the most important things we can do to fight climate change. At Orsted, that’s what we’re doing. With our growing portfolio of onshore wind, offshore wind, and solar power generating assets, we help companies and countries around the world accelerate their transition from fossil fuels to renewable energy. Our solutions make it possible to realise our vision: to create a world that runs entirely on green energy”

Rune Sonne Bundgaard-Jorgensen

At Rio Tinto, our materials are essential for the low-carbon transition. Aluminium for lightweight cars. Copper to help things work more efficiently – from renewables to the power in your home. Iron ore for the steel in our electricity infrastructure. Lithium for electric vehicles and battery storage. We work in 35 countries – in mines, smelters and refineries, as well as in sales offices, data centres, research and development labs and with artificial intelligence. The transition to a low carbon world offers a unique opportunity for us to grow, and to play an important role in tackling this global challenge.
“We’re aiming to achieve a 50% reduction in our scope 1 and 2 emissions by 2030, and NetZero by 2050. To achieve these targets, we will need to take genuine actions. We must switch to renewables at scale and at pace, electrify everything we can, work across our entire value chain and accelerate the development of new technology. Long duration energy storage is key to reaching
NetZero carbon emissions.”

Nigel Steward

Shell is an international energy company that aims to meet the world’s growing need for more and cleaner energy solutions in ways that are economically, environmentally and socially responsible. Shell uses innovative and advanced technologies to produce and distribute energy in more efficient, reliable and sustainable ways. Shell also invests in power, including from low-carbon sources such as wind and solar; and new fuels for transport, such as advanced biofuels and hydrogen.
“Collaboration will be key to shaping a flexible grid that integrates increasing renewable power capacities. I am proud to see Shell become an active member of the LDES Council to work together with governments and grid operators in developing long duration energy storage technologies. We are convinced that their deployment at scale is essential to meet variable power demand in a future net-zero energy system.”

Celine Mahieux

SLB is a global technology company that drives energy innovation for a balanced planet. With a global footprint in more than 100 countries and employees representing almost twice as many nationalities, we work each day on innovating oil and gas, delivering digital at scale, decarbonizing industries, and developing and scaling new energy systems that accelerate the energy transition
“Large-scale, long-duration energy storage is key to make variable renewable energy sources like solar or wind a larger component of the world’s electricity systems. As renewables penetration increases, so does the need for long-duration storage capacity to ensure efficiency of renewable assets and reliability of electricity systems. We are excited to join the Long Duration Energy Storage Council to accelerate carbon neutrality, as we continue to develop disruptive technologies that drive innovation and economics for scalable stationary energy storage solutions.”

Gavin Rennick,
Technology Providers
Innovators developing and commercializing LDES systems.

1414 Degrees is developing and commercialising its silicon-based thermal energy storage technology, SiBox™, to enable a clean energy future. SiBox™ will harness the extremely high latent heat capacity of silicon, to store heat from intermittent renewables. It will provide industry with reliable, decarbonised, ultra-high temperature heat 24 hours a day, seven days week, targeted at large scale industrial applications and combined heat and power opportunities.
SiBox™ has been designed as a modular concept, providing energy users the flexibility to decarbonise their energy systems in a way that lowers integration and scale-up risk and maximises use of clean, cheap, renewable power.
The Company is building a demonstration module to showcase the SiBox™ technology as a competitive clean energy product. The demonstration module, which will be operational in 2023, is being supported by Woodside Energy Technology and the Australian Federal Government through a Modern Manufacturing Initiative grant.
In 2019 the Company made the strategic purchase of the Aurora Energy Project, near Port Augusta in South Australia.
The focus of the project is to develop a hybrid power plant delivering reliable electricity to the National Energy Market. It is being jointly developed by 1414 Degrees and Vast Solar, through a 50-50 joint venture.
“In a world where we achieve net zero emissions, the way industry generates, stores and uses energy will be very different. 1414 Degrees is excited to be part of the Long Duration Energy Storage Council – driving this change – working alongside other technology developers, end-users and system integrators.
As part of this united force, we hope to fast-track the development and uptake of thermal energy storage technologies that decarbonise clean heat and power.”
For more information, visit www.1414degrees.com.au

Jordan Parham

Based in Sunnyvale, CA, Antora Energy turns intermittent renewable electricity into a low-cost, reliable, on-demand source of zero-carbon heat and power to enable deep decarbonization of industry and the electric grid. Antora’s thermal batteries can discharge zero-carbon electricity and/or heat at temperatures up to 1500°C or higher, hot enough to power nearly any industrial process. Antora’s technology will eliminate gigatons of emissions while increasing U.S. energy security, reducing our nation’s dependence on global supply chains, and supporting well-paying American jobs. The company is backed by leading investors, including Breakthrough Energy Ventures, Lowercarbon Capital, Shell Ventures,
BHP Ventures, Trust Ventures, Fifty Years, Grok Ventures, Impact Science Ventures, and Overture VC. Visit www.antoraenergy.com and follow the company on Linked and Twitter.
“Ushering in a clean energy future requires accelerating the widespread adoption of long duration energy storage, and thermal energy storage is an essential piece of decarbonizing both industry and the electric grid,” said Andrew Pone, co-founder and CEO of Antora Energy. “As a leader in low-cost, reliable zero-carbon heat and power, Antora Energy is proud to join the LDES Council. We look forward to working alongside business leaders and policymakers to speed the path to net zero in the United States and around the world”

Andrew Ponec

Brenmiller Energy delivers scalable thermal energy storage solutions and services that allow customers to cost-effectively decarbonize their operations. Its patented Gen™ thermal storage technology enables the use of renewable energy resources, as well as waste heat, to heat crushed rocks to very high temperatures. They can then store this heat for minutes, hours, or even days before using it for industrial and power generation processes. With bGen™, organizations have a way to use electricity, biomass and waste heat to generate the clean steam, hot water and hot air they need to mold plastic, process food and beverages, produce paper, manufacture chemicals and pharmaceuticals or drive steam turbines without burning fossil fuels. For more information visit the company’s website at https://bren-energy.com/ and follow the company on X (formerly
Twitter) and LinkedIn.
“Brenmiller is proud to join the LDES Council to uplift the advancement of critical thermal energy storage solutions to enable widescale industrial decarbonization and usher in a net-zero future.”

Avi Brenmiller

As a global leader in new energy innovative technologies, CAT is dedicated to supporting the global energy transition and continuously developing in the electrochemical energy storage industry. In 2019, CAT began the mass production of long-life batteries capable of 12,000 cycles, and have collaborated with power groups to deliver large-scale energy storage systems co-located with renewable power plants for peak shaving and to raise renewable integration to the grid. We have also delivered stand-alone energy storage systems to support grid expansion and frequency regulation and provide service in end-use sector. CAL has also ranked first in the market share of global energy storage battery shipment for three consecutive years with a global market share of 40% in 2023. CAT has announced our goals to achieve carbon neutrality in core operations by 2025 and across the entire value chain by 2035, having three lighthouse factories and four zero-carbon battery production bases.
“Long duration energy storage is crucial for power supply regulation, enhancing power grid security by managing weekly, monthly and seasonal variability of renewables. CAT is committed to providing lithium-ion batteries based LDES solutions, designing cells and systems suitable to various application scenarios. We are thrilled to join LDES Council as li-ion battery manufacturer and look forward to working together with different long duration energy storage technologies and industry leaders to contribute to a transformative shift towards a more sustainable future.”

Libin Tan

Credible. Capable. Certain.
Grid-scale energy storage systems for commercial, industrial, and utility applications.
“CellCube engineers patented, ultra-safe, and reliable vanadium flow battery storage solutions that deliver instantaneous reserve power for 24 hours or more. With scalable systems guaranteed to perform at full capacity for decades, CellCube batteries enable intelligent energy solutions that put you in control of your costs, your impact, and your future.
The Cellcube system is the solution to grid-level long duration energy storage at lowest life cycle cost, highest availability and utmost safety standards with non-flammable vanadium technology. CellCube has more than 10 years of field operating data and provides mature & commercial technology.“

Volker Schulte

Founded in 2012, e-Zinc is a corporation based in Toronto, Canada that has developed a breakthrough electrochemical technology for storing energy in zinc metal. This affordable, flexible, and long-duration energy storage solution will provide the platform for the world’s energy markets to be fully powered by renewable energy, enabling a zero-carbon energy future. -Zinc has already completed a $1.5 million commercial feasibility demonstration project awarded by the Government of Canada through Sustainable Development Technology Canada (SDTC). e-Zinc has recently raised a significant amount of equity and won several non-dilutive grants to fund the early commercialization of its technology.
“Replacing fossil fuels with renewable energy is a critical milestone to achieve our deep decarbonization goals. The only way we get to the levels of renewable energy penetration we need is by coupling this with long-duration energy storage.”

James Larsen

Founded in 2007 in Akron OH, Echogen is empowering global decarbonization through waste heat recovery, long duration energy storage, and highly efficient power cycles for industries such as hydrogen, nuclear, concentrated solar power, biomass, and geothermal. Echogen is a leader in the development of sCO2 power system technology, with the only commercialized sCO2 power cycles in the world. Echogen has developed, built, and tested a 7.3MW sCO2 waste heat recovery application and commercially licensed the technology. Echogen’s pumped thermal energy storage technology will enable a 100% renewable based electrical grid.
“The transition to a carbon-free energy system is only achievable with a commitment to long duration energy storage. The work of this Council is critical to accelerating the deployment and lasting impact of a breadth of technologies to address our existential climate crisis.“

Philip Brennan

Energy Vault develops and deploys sustainable energy storage solutions designed to transform the world’s approach to utility-scale energy storage in realizing decarbonization while maintaining grid resiliency. The company’s proprietary gravity-based energy storage technology and energy storage management and integration platform are intended to help utilities, independent power producers and large industrial energy users significantly reduce their levelized cost of energy while maintaining power reliability. Utilizing eco-friendly materials with the ability to integrate waste materials for beneficial re-use, Energy Vault is facilitating the shift to a circular economy while accelerating the clean energy transition for its customers. For additional information, please visit: www.energyvault.com
“At Energy Vault, our mission is to make carbon free energy a reality through the deployment of sustainable and economical energy storage technologies. Energy Vault is proud to join the Long Duration Energy Storage Council in support of their efforts to raise awareness of the value of energy storage and to advance the deployment of storage technologies that will enable renewable energy to power our economy and accelerate decarbonization.”
Robert Piconi

Established in 2006, Energylntel has positioned itself at the vanguard of the renewable energy revolution, with a distinct emphasis on advancing solar technology. From its inception, Energylntel has specialized in the deployment of medium to large-scale solar power installations, including cutting-edge Photovoltaic and Solar Thermal power plants. What distinguishes Energylntel is its seamless integration of state-of-the-art energy storage solutions, transforming renewable energy from a mere possibility into a dependable, round-the-clock reality.
Central to Energylntel’s success is its formidable Research and Development team, which spearheads continuous innovation. With an impressive portfolio of over 94 patents, Energylntel has pioneered groundbreaking technologies, ranging from advanced thermal storage materials to novel energy conversion methods. This unwavering commitment to innovation solidifies Energylntel’s leadership in the energy storage sector.
“As a member of the LDES Council, we are committed to advancing the future of energy storage, driving innovation, and fostering collaboration to build a sustainable and resilient energy ecosystem. Our mission is to accelerate the deployment of Long Duration Energy Storage solutions worldwide, empowering the transition to a cleaner, more reliable, and equitable energy grid for all.”

Eugenia Herodotou

EnerVenue is the first company to bring nickel-hydrogen battery energy storage to the C&l and grid-scale industries.
Originally deployed by NASA and then further refined and cost-reduced by Stanford University, Ener Venue’s nickel-hydrogen technology offers compelling value and differentiation in terms of short and long duration flexible charging and discharging over 30,000 cycles with minimal degradation resulting in no need for augmentation; zero risk of fire for a reliably safe operation; and minimal OPEX due to no augmentation, no fire suppression systems, and no air conditioning systems needed.
“The LDES Council is quickly establishing a unified voice in the global energy discussion by helping push long duration energy storage policy and technology forward. This effort is critical as the world transitions toward a more distributed electricity grid. EnerVenue is proud to be leading the energy transformation as part of the LDES Council with our differentiated ability to support short and long duration energy storage that is safe, long lasting, and flexible.”

Jorg Heinemann

Eos Energy Enterprises is an American advanced storage infrastructure company. Its zinc-based, long-duration storage systems are built to support the performance of generation, transmission, and distribution assets. More than a backup solution, Eos storage is designed to operate as a foundational layer—enabling flexibility, reliability, and control across grid and off-grid applications.
“America is rebuilding its industrial base — from semiconductors to AI to advanced manufacturing — and every one of those industries runs on electricity. The grid isn’t built for what’s coming. Load is ramping faster, swinging harder, and concentrating in ways the system was never engineered to handle. Long-duration energy storage is what makes that possible. At Eos, we’re meeting that challenge head-on: safe, American-made, zinc-based systems delivering reliable power where and when it’s needed most. We’re not waiting for the grid to catch up. We’re building what’s required to power it.”

Joe Mastrangelo

Coming Soon.

Hydrostor is a long-duration energy storage solutions provider that provides reliable and affordable utility integration of long-duration energy storage, enabling grid operators to scale renewable energy and secure grid capacity. Hydrostor supports the green economic transition, employing the people, suppliers, and technologies from the traditional energy sector to design, build, and operate emissions-free energy storage facilities. Hydrostor has developed, deployed, tested, and demonstrated that its patented Advanced Compressed Air Energy Storage (“A-CAES”) technology can provide long-duration energy storage and enable the renewable energy transition. A-CAES uses proven components from mining and gas operations to create a scalable energy storage system that is low-impact, cost-effective, 50+ year lifetime, and can store energy from 5 hours up to multi-day storage where needed. Hydrostor has projects worldwide in various development stages for providing capacity of over 200 MW each. Follow us on Linkedin.
“We are pleased to be joining the LDES Council and work towards achieving shared goals with the other high caliber members. Hydrostor’s Advanced Compressed Air Energy Storage (or A-CAES) is an important technology addition to the Council as we support long duration energy storage globally to enable an affordable and reliable clean energy transition.”

Curtis VanWalleghem, CEO

i-Battery Energy Technology (Suzhou) Co., Ltd. is committed to being an innovator in long-duration energy storage technologies. We specialize in the R&D, promotion, and application of Vanadium Redox Flow Battery technologies. Our mission is to accelerate the country’s transition to a new energy system dominated by renewable sources and to facilitate national energy structure transformation through the industrialization of long-duration energy storage technology. Our core team has strong technical capabilities, each with over a decade of rich experience in the field of long-duration energy storage, dedicating to the development and production of proprietary products and new materials. The company has continuously achieved breakthroughs and optimizations in the core technology of liquid flow batteries, establishing high technical barriers.
Technical highlights include our unique cell stack design, independently developed electrolyte formula and preparation technology, as well as advanced engineering systems and loT cloud platforms, etc. While continuously improving the quality and performance of energy storage products, we effectively reduce costs. In addition, we attach great importance to the integration of the entire industry chain, ensuring close cooperation from raw material procurement to production, to achieve large-scale, intelligent production of a new generation of energy storage products that are “long-duration, low-cost, extremely safe, and more flexible.
“Joining the LDES Council underscores our commitment to advancing long-duration energy storage, a critical component in accelerating the global transition to renewable energy. As we strive to achieve ambitious climate targets without relying on nuclear or conventional-based electricity supply, it’s evident that long-duration energy storage solutions are indispensable. By leveraging our inherent safe, long-life storage technology within the LDES council, we aim to continuously provide zero-carbon electricity for a better world and contribute to a more sustainable future for the global community.“
Feng Yong

Invinity Energy Systems manufactures utility-grade energy storage to meet the requirements of commercial, industrial and network-scale customers around the world. Invinity’s long-duration batteries are based on patented vanadium flow technology and do not catch fire or degrade with use, making them a proven, economical choice for a broad range of applications. Invinity has commercial projects in Europe, North America, Asia and Australia, with significant operations in Vancouver and Edinburgh and offices in London and San Francisco. Invinity Energy Systems pl is listed on the London Stock Exchange (LSE:IES).
![Jonathan-3[12].jpg](https://ldescouncil.com/wp-content/uploads/2026/04/Jonathan-312.jpg.jpeg)
Jonathan Marren

Kraftblock develops and sells multifunctional high temperature energy storage (up to 1300°C) systems to decarbonize industries like steel, glass, ceramics but also to help renewable energy to have its breakthrough in industrial heating systems. Our core-unit, the TES itself, is modular, easily scalable, highly efficient and affordable. Kraftblock is located in
Germany, Sulzbach/Saar.
“At Kraftblock, we all believe in a sustainable energy system where storage plays a major role to push the system towards more and more renewables. As it is a long way and a harsh transition path to replace fossil fuels, we designed a system that helps to introduce renewables into different industries but also to reduce CO2-emissions of conventional plants by waste-heat-recycling. We are proud to be a part of LDES, as we meet a lot of companies, all committed to the same goal:
Helping the world to understand what technology is able to do today and how it helps to fight climate change!“

Martin Schichtel

Magaldi is an Italian world leader company with almost a hundred years of history and experience in systems for transporting materials at very high temperatures. Magaldi Green Energy, member of Magaldi Group, will focus on energy transition through its patented STEM Concentrated Solar Thermal and MGTES technologies, charging and discharging energy through its fluidized sand bed. The sand fluidization system has significant benefits: large thermal storage capacity, high thermal efficiency, fast response times, 100% ESG compliant thanks to the use of natural materials, and many more.
“We are proud to be joining and contributing to the prestigious and forward looking LDES Council: the MGTES system stores renewable energy and waste heat when in surplus and releases green thermal energy or electricity for industrial consumption, balancing the gaps between supply and demand and helping to stabilise the grid. We believe that simple and dependable TES technologies will help accelerate towards higher energy transition targets.“

Letizia Magaldi

Malta represents the future of energy storage. With its grid-scale solutions that can store energy up to 50x longer than typical battery technology, Malta is enabling renewable energy to be used more efficiently and effectively, enhancing grid reliability and resilience, and expediting the transition to a clean energy future. Incubated at X, the Moonshot Factory (formerly Google \X]), the company is backed by energy industry leaders Alfal Laval, Proman, and Chevron Technology Ventures, as well as investors Breakthrough Energy Ventures and Piva Capital. Malta is based in Cambridge, Massachusetts.
“The climate crisis is upon us. We have a narrow moment to act to avert its most catastrophic consequences. We can and we must seize this opportunity to speed the clean energy transition. The Long-Duration Energy Storage Council will help governments and industry to understand, value, and accelerate the deployment of the lynchpin of decarbonization: long-duration energy storage. Malta is proud to be a leading member of this important effort.“

Ramya Swaminathan

Coming Soon

MGA Thermal specialise in the development and production of next generation, purpose engineered thermal energy storage materials. Our patented materials use a composite microstructure to achieve the high energy density of phase change materials, with the safety, low infrastructure cost and ease of use of a continuously solid and modular storage material. We use recycled and sustainable feedstock materials to achieve the minimal possible carbon footprint for our product. MGA also specialise in the use of these materials, providing total TES system design or consultation on integration into pre-existing TES systems as required.
“Thermal energy storage is emerging as a key technology in the mix required to achieve stable and reliable power supply from intermittent renewable sources, particularly in applications where storage is required over medium to long durations (days to weeks rather than minutes to hours). The Long Duration Energy Storage Council serves the vital role of benchmarking the various technologies on offer and informing the public. MG Thermal is thrilled to join the council and look forward to helping support the ecosystem.”

Dr. Alexander Post, CTO

Noon Energy aims to unlock a fully-renewable future with energy storage inspired by nature. Noon has developed a breakthrough ultra-low-cost battery technology that provides high energy density long-duration storage with the unique fundamental properties needed to make intermittent solar and wind power available 24/7 year-round at a lower cost than conventional fossil fuel generation. Noon is supported by leading investors including Clean Energy Ventures, Aramco Ventures, At One Ventures, Emerson Collective, Mistletoe, Prime Impact Fund, and Collaborative Fund. Follow us at www.noon.energy and on Linkedln.
“Long-duration energy storage is the key to unlocking the transition to a fully renewable, reliable electricity supply based on solar and wind power. Nature stored away solar power for eons as carbon and hydrocarbons underground, and now we need to make that happen in real-time for the same cost. Noon Energy’s unique approach aims to do exactly that, storing energy for days and weeks using the same abundant, low-cost elements that nature does during photosynthesis. Noon is excited to join the LDES Council and work together in this growing community of industry leaders and policymakers to accelerate sustainability.“

Chris Graves, CEO

Quidnet Energy was launched with the vision of building breakthrough energy technology to accelerate the energy transition. Utilizing existing hydroelectric and industrial machinery supply chains, Quidnet has developed a new form of pumped hydro energy storage that is modular, flexible, and doesn’t require mountains. The company has four projects under development in New York, Texas, Ohio and Alberta, Canada. Quidnet is supported by Breakthrough Energy Ventures and Evok Innovations, as well as government agencies including the US Department of Energy, the New York State Energy Research and Development Agency (NYSERDA), and Emissions Reduction Alberta (ERA).
“Long-duration energy storage solutions, like Quidnet’s, represent the critical missing piece needed to build our clean energy future.” “For over 100 years, the electric system has relied on large stocks of fossil fuels such as coal, oil, and natural gas to provide the energy storage necessary to stabilize the power grid. As we transition to a zero-carbon future using intermittent sources of renewable power and minimizing fossil fuel use, long-duration energy storage will be critical to stabilizing the grid and providing reliable, low-cost, clean power.” “We at Quidnet Energy are proud to be part of the founding body to the LDES Council, which offers a fundamentally new way of approaching the global energy storage need by bringing together technology providers and major international energy companies and investors to advance the long-duration energy storage technologies that are necessary for our clean energy future.”

Joe Zhou

Rondo Energy, the leading provider of zero-carbon industrial heat, makes industrial decarbonization possible -and profitable -today. The Rondo Heat Battery captures and stores low-cost renewable electricity to deliver continuous high-temperature heat, enabling customers to power their operations with zero-carbon energy. Learn more at rondo.com/products.
“Rondo’s mission is simple: accelerate the adoption of low-cost and zero-carbon electric thermal energy storage to meet the heat and power requirements for large industrial processes. It’s clear now that thermal energy storage delivers deep emission reductions that, for the first time ever, are now both practical and affordable for many of the world’s most energy-intensive facilities. Around the world, the costs of wind and solar are plummeting. In California, prices are sometimes so low that in some parts of the day, generation exceeds grid capacity, leading to curtailment. Rondo not only helps to decarbonize industrial facilities, but also helps stabilize the grid by capturing this excess electricity and storing it as dispatchable heat and power. Rondo’s strength lies in its simplicity, and we’re thrilled to help global industrial companies and utilities not only navigate, but accelerate, toward a zero-carbon future.”

John O’Donnell

Dalian Rongke Power Group Co., Ltd is a leading global manufacturer of vanadium flow batteries (VFBs) and a prominent provider of energy storage solutions.
Founded in 2008 by a team of visionary scientists, RKP has achieved significant milestones, secured over 450 patented technologies, and deployed more than 2GWh of utility-scale batteries in strategic customer projects. RKP’s batteries are renowned for their unmatched safety, eliminating the risk of thermal runaway, and are designed to retain 100% capacity for over 25 years.
RKP’s innovative solutions support critical applications such as grid services, renewable energy integration, microgrid setups, and electricity market arbitrage.
“Long-duration energy storage is not just essential-it’s foundational to a reliable, decarbonized energy future. As the global leader in Vanadium flow battery technology, Rongke Power is proud to join the LDES Council and contribute our expertise to shaping resilient, long-duration solutions that support renewable integration, grid stability, and energy equity. We look forward to collaborating across technologies and geographies to accelerate the global transition to net zero.”

Philp Krause

STOLECT is an energy technology company developing an industrial long-duration electricity storage solution based on the reversible conversion of electricity into heat. Its E-Basalt Battery technology enables large-scale energy storage without geographical constraints, relying on abundant natural materials to deliver dispatchable, stable and cost-competitive renewable power over long durations. Through its thermomechanical cycle, STOLECT also provides grid inertia, enhancing power system stability and fully complementing the role of batteries in fast frequency response. Based in France and active internationally, STOLECT aims to contribute to the deployment of resilient, sustainable and sovereign low-carbon energy systems worldwide.
“Decarbonizing energy systems requires the large-scale deployment of renewable energy. To make renewables available 24/7, long-duration energy storage is an essential building block. Power systems are designed in megawatts, but decarbonization depends on megawatt-hours. Long-duration energy storage is where this gap must be closed.”

Jean-Francois Le Romancer

Coming Soon

TerraFlow Energy delivers cost-effective, long-duration energy storage solutions designed to support the increasing energy demands of Al infrastructure, data centers, industrial operations, and large-scale energy users. Headquartered in Katy, Texas, LDUPS™ by TerraFlow Energy technology provides scalable, high-cycle storage that enhances grid reliability, reduces costs, and eliminates supply chain constraints associated with conventional storage technologies.
With a focus on real-world deployment, TerraFlow Energy works with utilities, commercial and industrial customers, and mission-critical facilities to provide reliable, long-duration storage solutions that ensure power stability and resilience. For more information, visit terraflowenergy.com
“Reliable, long-duration energy storage isn’t just about integrating renewables -it’s about meeting the massive power demands of today’s world. Grid operators, data centers, and industrial users need cost-effective, high-cycle storage solutions to keep pace with their energy needs. TerraFlow Energy is solving that challenge with a scalable, low-LCOS storage solution built for the future.”

Jon Parrella

XL Batteries is mission-driven to deliver a safe, low-cost, grid-scale LDES solution that will help transform the power grid from fossil fuels to renewable sources. Founded in 2019, XL Batteries has developed a revolutionary ultra-low cost Organic Flow Battery™. This revolutionary product combines the proven flow battery architecture with our patented, proprietary electrolyte chemistry to create a flexible duration and highly efficient LDES solution. Our Organic Flow Battery™ is the lowest cost, safest and most reliable choice for grid operators, independent power producers, micro-grids and heavy industrial users.
Learn more about us at www.xlbatteries.com
“Transforming the grid will require a wide variety of technologies and a broad array of companies all working toward the same goal of delivering durable, reliable, cost-effective LDES that can meet every use case. XL Batteries is excited to be part of the LDES Council and to support its important work advancing the LDES industry and supporting the companies and technologies that will make the carbon-neutral grid a reality.“
Thomas Sisto
Service Providers
Law firms, EPCs and other industry-leading organizations supporting the energy transition.

At ESB, we recognise how important solutions such as long duration energy storage will be to deliver a net zero electricity system. They will be crucial to support the evolving network and will facilitate ever more onshore wind, offshore wind and solar onto our electricity system in the coming decades. To support and enable our net zero by 2040 strategy ESB is developing a pipeline of projects to deliver long duration energy storage solutions as well as additional flexible enabling technologies. This partnership with the LDES Council is aligned with our strategy and will allow us to contribute and share our innovative ideas with like-minded partners in transition to a net zero electricity system

Baringa is a global advisory firm serving clients globally, creating lasting impact for clients and pioneering a positive, people-first way of working. We serve over 350 clients around the world and specialise in energy advisory, working with the world’s biggest brands, governments and policymakers to help them navigate the energy transition. We are globally recognised as a market leader, having been voted Leading Energy & Utilities Advisor by the Financial Times in their annual survey of Management Consultants for 5 years running. Our 800+ power market experts analyse and design markets and policy; determine strategy and investment decisions; identify new commercial opportunities and manage risk. Our energy market models span 60 markets and underpin our advisory capabilities and deep-rooted understanding of energy fundamentals. For more information, please visit: baringa.com or on LinkedIn.
“We at Baringa are proud to join the Long Duration Energy Storage (LDES) Council and collaborate with industry leaders to accelerate the development and commercial deployment of LDES solutions across global power markets. Joining the LDES Council marks an important step in our mission to support the energy transition.”

Osamudiame Evbuomwan

Sumitomo SHI FW (SW) has been providing innovative and environmentally friendly energy solutions to our customers for over 100 years. Our mission is to enable the energy transition to a carbon-free future through decarbonization, decentralization and digitalization. Our solutions expand from the world-leading circulating fluidized bed (CB) technology to long-duration energy storage (LDES), waste-to-energy (W2E), waste-to-value (W2V), carbon capture and digital services for the global power and industrial markets. Through co-creation, partnerships, and ecosystem collaboration SW aims to accelerate the speed of decarbonization and create more value for our customers. We are global energy experts with more than 1800 talented staff, across multiple locations, covering the globe in North America, Europe, and Asia.
“We believe long duration energy storage can enable 100% renewable power systems and grids affordably and sustainably while reaching global decarbonization goals. Our vision is to enable decarbonization of the energy ecosystem to meet the climate change goals and objectives”

Upma Koul
Startups
Startups advancing breakthrough solutions in energy storage.

CMBlu Energy is a global deep-tech company redefining long-duration energy storage with its breakthrough SolidFlow battery technology. The company’s innovation combines the advantages of proprietary, energy dense materials with the architecture of flow batteries, enabling high-performance storage systems built from abundant, non-flammable materials instead of critical minerals. Founded in 2014, CMBlu evolved from one of Europe’s largest lithium-free battery research laboratories into a rapidly scaling energy storage innovator. The company is now scaling manufacturing through its automated gigafactory in Alzenau, Germany, with additional facilities planned in the United States and Greece to support resilient, localized supply chains. With more than 250 employees—including over 150 scientists and engineers—CMBlu is accelerating the future of long-duration energy storage and enabling resilient power systems capable of supporting the next generation of digital infrastructure and electrified industries worldwide. Headquartered in Alzenau, Germany, CMBlu Energy also operates in Greece and the U.S.
“We’re excited to join the LDES Council at a time when the case for long duration energy storage has never been stronger. SolidFlow batteries were built for exactly the scale and reliability the market now demands, and we look forward to shaping the future of the sector alongside fellow members — helping drive the policies, partnerships, and market structures this technology deserves.”

Constantin Eis

Offgrid Energy Labs has developed ZincGel®, a non-flow redox battery for long-duration energy storage. ZincGel® is purpose-built for the 6-16 hour daily deep-cycling needs of net zero data centres, renewable grids, and industry. Made with abundant raw materials and low-capex manufacturing, ZincGel® can be produced almost anywhere in the world. Offgrid operates in the UK and India, with its manufacturing facility based in the UK. With over 60 patents across materials, design, and manufacturing, Offgrid’s business is built on a partnership-led model. Visit our website to learn more.
”From data centres to heavy industry to the grid itself, decarbonised power depends on pairing renewables with storage that can deep-discharge every day across the full cycle. Offgrid is proud to join the Long Duration Energy Storage Council to advance ZincGel®, which closes the gap between short-duration batteries and the multi-day storage the energy transition requires. ZincGel® was built for exactly this challenge: a long-duration battery free of critical minerals, safe enough to site anywhere, and manufacturable at scale on existing industrial infrastructure. We look forward to working alongside the Council to accelerate the deployment of ZincGel® worldwide”

Tejas Kusurkar

Redox One is a Long Duration Energy Storage (LDES) innovator, delivering safe, sustainable, and cost-effective Iron Chromium Flow Battery Solutions. Built with abundant, non-flammable, and fully recyclable materials, its battery solutions offer exceptional longevity, deep cycling capability, and ultra-low Levelized Cost of Storage (LCOS), making it ideal for utility-scale grid stabilization and renewable integration. Through its fully integrated “from mine to gigawatt-hours” approach, Redox One controls the entire value chain—from raw material mining to advanced electrolyte production and system deployment—ensuring unmatched reliability, scalability, and supply security for resilient, low-carbon energy systems.
“Joining the LDES Council represents a strategic imperative for Redox One. As the global energy transition accelerates its demand for robust, secure, and cost-effective storage, collaborating with the Council’s leaders enables us to immediately contribute our insights on deployment and policy. Our Iron Chromium Flow Battery Solutions—which deliver an industry-leading LCOS—are the economically viable foundation needed to solidify the path toward a stable, 100% renewable grid.”

Thomas Gebauer
Founded in 2022, Sinergy Flow develops proprietary redox flow battery based on abundant, low-cost, and sustainable materials for long-duration energy storage applications (8-24 h). Our technology enables safe, scalable, and cost-effective energy storage for renewable integration, grid resilience, and energy security. By leveraging sulfur-rich industrial by-products, Sinergy Flow reduces reliance on critical raw materials while delivering a lower levelized cost of storage (LCOS) and environmental footprint.
“The energy transition is not only a technological challenge; it is about the resilience of infrastructure. Without long-duration storage, the transition remains structurally unstable; without solid and accessible supply chains, innovation cannot scale. At Sinergy Flow, we develop proprietary redox flow battery technology to close this gap. We are proud to join the LDES Council to help accelerate its deployment and to collaborate with industry leaders in accelerating a reliable, cost-effective clean energy system”

Alessandra Accogli

At ARKLE, we’re not just building batteries—we’re building the backbone of a clean energy future. Our in-house designed and manufactured Redox Flow Battery technology delivers 25+ years of operation with minimal degradation, combining high reliability with safety and environmental sustainability. With planetary tipping points now being crossed, long-duration energy storage is no longer a future consideration—it is a critical tool for stabilizing our energy systems and protecting a livable planet. Our vision is to build a future where the light of clean energy illuminates all of civilization—a future where humanity thrives peacefully, not at the expense of nature, but in harmony with it.
“With planetary tipping points now being crossed, long-duration energy storage is no longer a future consideration—it is a critical tool for stabilizing our energy systems and protecting a livable planet. Our vision is to accelerate the deployment of LDES worldwide, ensuring clean energy is not only generated, but sustained, stored, and available whenever humanity needs it.”

Jeevith Reddy

Storion Energy is bringing energy resilience and security to the flow battery industry by removing the barrier to entry for battery manufacturers with a vertically integrated supply chain providing Power Assembly Stacks and competitively priced electrolyte. Storion is a joint venture between an affiliate of Stryten Energy LLC and Largo Clean Energy Corp., a subsidiary of Largo Inc. Storion supports scalable domestic electrolyte production to establish a domestic supply chain for utility-scale VRFB LDES solutions. VRFB solutions are a safe and reliable option for Battery Energy Storage Systems (BESS) that need to provide energy storage of four or more hours. Storion has locations in Alpharetta, Georgia, and Wilmington, Massachusetts.
“As power demand continues to grow, the need for safe, reliable, and scalable long-duration energy storage has never been greater. Vanadium flow batteries offer a durable solution for the long-duration applications needed to support grid reliability, energy security, and the integration of renewable energy. We are proud to join the LDES Council to help raise awareness of flow battery technology and accelerate the deployment of long-duration energy storage worldwide.”

Sue Ozdemir

GreenRock Energy combines infrastructure expertise, renewable integration, and long-duration thermal energy storage solutions to support scalable industrial decarbonization and modern grid reliability.
“GreenRock Energy believes long-duration energy storage will be a critical enabler of the next generation of renewable energy infrastructure. Joining the LDES Council allows us to work alongside leading organizations to advance practical, scalable energy storage solutions that strengthen grid reliability and support continued growth in clean energy.”

Matthew James
Benefits of Membership
The LDES Council brings together leading LDES technology providers, equipment providers, renewable energy companies, utilities, grid operators, investors and end-customers with a common mission of accelerating the deployment of long duration energy storage solutions in support of a net-zero carbon power system. The LDES Council has formed this unique alliance to support governments, grid operators and major electricity users in the most cost-effective adoption of energy storage to replace the use of fossil fuels. Once a member, other staff members at the VP, Director, etc. levels have the opportunity to join working groups and committees, as well as gain access to the Member Portal.










































