Website: [invinity.com](https://invinity.com) ### Introduction Invinity Energy Systems, founded in 2020 through the merger of redT Energy and Avalon Battery Corporation, is a leading manufacturer of utility-grade energy storage solutions, specializing in vanadium flow batteries. Headquartered in London, UK, with additional offices in Vancouver, Canada, and Bathgate, Scotland, the company focuses on providing safe, economical, and proven energy storage systems to support large-scale renewable energy integration for businesses, industries, and electricity networks. While exact employee numbers are not publicly disclosed in the latest data, Invinity has a growing presence with a focus on innovation and scalability, as evidenced by their active hiring initiatives ([LinkedIn](https://uk.linkedin.com/company/invinity-energy-systems)). Invinity Energy Systems is a publicly traded company listed on the London Stock Exchange's AIM market under the ticker symbol IES (AIM:IES) and also on the AQSE Growth Market. Their mission is to enable a low-carbon future by delivering long-duration energy storage solutions that ensure reliability for renewable energy generation, with a commitment to sustainability and grid stability ([invinity.com](https://invinity.com)). ### Key Products and Technology Invinity Energy Systems specializes in vanadium flow battery (VFB) technology, designed for high-utilization, long-duration energy storage applications. Below are their primary product lines: - **VS3 Battery System (Commercial Product)** - **Type**: Vanadium Flow Battery for commercial and industrial applications - **Technical Specifications**: Modular design with power output ranging from 78 kW to multi-MW systems; energy storage capacity configurable up to several MWh; cycle life exceeding 20,000 cycles with no degradation over 25+ years. - **Energy Source**: Utilizes vanadium electrolyte, a non-flammable, recyclable material. - **Key Differentiators**: High safety profile with no thermal runaway risk; long lifespan with minimal maintenance; fully recyclable components; cost-competitive for long-duration storage compared to lithium-ion. - **Development Stage**: Fully operational and commercially deployed in multiple projects worldwide. - **Target Customers**: Commercial and industrial sectors, renewable energy developers, and microgrid operators. - **Endurium Battery System (Utility-Grade Product)** - **Type**: Vanadium Flow Battery for large-scale utility applications - **Technical Specifications**: Scalable to 10+ MWh; designed for grid-scale storage with high throughput and continuous operation; similar cycle life to VS3 (>20,000 cycles). - **Energy Source**: Vanadium electrolyte, ensuring safety and sustainability. - **Key Differentiators**: Optimized for utility-scale projects with lower levelized cost of storage (LCOS); robust performance in extreme climates; proven in high-demand grid applications. - **Development Stage**: Operational, with recent sales including a 12 MWh system to the Pacific Northwest National Laboratory in the U.S. - **Target Customers**: Utilities, grid operators, and large renewable energy projects. Invinity’s vanadium flow batteries stand out due to their durability, safety, and environmental benefits, positioning them as a viable alternative to lithium-ion for applications requiring long-duration storage ([invinity.com](https://invinity.com)). ### Regulatory and Licensing Status As a non-nuclear energy storage company, Invinity Energy Systems is not subject to Nuclear Regulatory Commission (NRC) oversight or licensing. Instead, their regulatory focus involves compliance with international and regional energy storage standards, safety certifications, and environmental regulations. They adhere to standards such as ISO 9001 for quality management and ensure their products meet grid interconnection requirements in markets like the UK, U.S., and Australia. Key regulatory milestones include successful certifications for grid integration and safety in multiple jurisdictions where their batteries are deployed. There are no significant regulatory barriers reported for their technology, and their systems are already commercially deployed, indicating full regulatory acceptance in current markets. The timeline for further commercial deployment is immediate, as their products are market-ready and actively being sold for new projects ([invinity.com](https://invinity.com)). Specific upcoming regulatory milestones are not publicly detailed in recent data, but their focus remains on expanding certifications for emerging markets. ### Team and Leadership Invinity Energy Systems is led by a team of experienced professionals in energy storage and renewable energy sectors. Key executives include: - **Larry Zulch, Chief Executive Officer**: With over 30 years of experience in technology and energy sectors, Zulch previously led energy storage initiatives at companies like Trane Technologies. He drives Invinity’s strategic growth and market expansion. - **Jonathan Marren, Chief Financial Officer**: Marren brings extensive experience in corporate finance and capital markets, focusing on financial strategy to support Invinity’s scaling operations. - **Matt Harper, Chief Commercial Officer**: Harper oversees global sales and partnerships, leveraging his background in renewable energy and storage solutions to secure key contracts. Social media handles for leadership are not verified or publicly prominent in available data, so they are omitted here. The leadership team is supported by a broader group of technical experts in battery chemistry and grid integration, as noted on their corporate profiles ([invinity.com](https://invinity.com)). ### Funding and Financial Position Invinity Energy Systems has raised significant funding to support its growth, though exact total figures are not fully updated in the latest public data. As a public company (AIM:IES), their financial position is accessible through regulatory filings and stock market updates. As of recent reports, their market capitalization fluctuates based on stock performance, with real-time data available via platforms like [Yahoo Finance](https://finance.yahoo.com/quote/IES.L/) and [Reuters](https://www.reuters.com/markets/companies/IES.L). Recent stock performance indicates volatility typical of emerging clean energy firms, with specific figures varying daily. Key institutional investors include strategic backers in the clean energy space, though specific names and latest rounds are not detailed in current public announcements. Invinity is post-revenue, with income from commercial sales of their battery systems, including recent contracts like the 12 MWh Endurium system sale in the U.S. Their financial strategy focuses on scaling production and securing larger grid-scale projects to achieve commercial scale revenue growth ([Investegate](https://www.investegate.co.uk/company/IES)). ### Recent News and Developments | Date | Event | Details | |---------------|-------------------------------|-----------------------------------------------------------------------------------------------| | Dec 22, 2025 | 12 MWh Sale for U.S. Project | Sale of a 12 MWh Endurium system to Pacific Northwest National Laboratory, marking a key reference point for U.S. market expansion ([Research Tree on X](https://x.com/research_tree)). | | Sep, 2025 | Project Announcements | Continued deployment of battery systems in various global projects, specifics pending further RNS updates ([Investegate](https://www.investegate.co.uk/company/IES)). | | Jul 11, 2025 | Regulatory Announcement | Inside information disclosure under Market Abuse Regulation, specifics not detailed publicly ([OTC Markets](https://www.otcmarkets.com/news-otcapi/news/document/content/id?id=83149)). | | Jun 25, 2025 | Stock Performance Update | Ongoing stock activity reported, with detailed financials available for investors ([Yahoo Finance](https://finance.yahoo.com/quote/IES.L/)). | | Jan, 2025 | Market Expansion Plans | Focus on expanding presence in North America and other regions, based on strategic updates ([invinity.com](https://invinity.com)). | Note: Specific dates and details for some events are approximated due to limited granularity in public data. Updates are sourced from recent posts on X and regulatory news services. ### Partnerships and Collaborations - **Pacific Northwest National Laboratory (PNNL), U.S.**: Recent sale of a 12 MWh Endurium system for a U.S. project, providing a critical reference for utility-scale storage in North America and enhancing credibility with U.S. grid operators. - **Various Utility and Renewable Developers**: Invinity collaborates with multiple utilities and renewable energy firms globally, though specific names are not always disclosed in recent public data. These partnerships focus on integrating storage with solar and wind projects to ensure grid stability. - **Government and Research Initiatives**: Participation in publicly funded projects to advance long-duration storage, particularly in the UK and EU, aligning with net-zero goals and grid modernization programs ([invinity.com](https://invinity.com)). These partnerships underscore Invinity’s strategic positioning in the growing energy storage market, leveraging both commercial and governmental support to scale deployment. ### New Hampshire Relevance Invinity Energy Systems’ vanadium flow battery technology could have significant relevance for [[New Hampshire]], particularly in supporting the state’s renewable energy and grid reliability goals. Their systems are well-suited for integration with the ISO-NE grid, which serves New Hampshire and the broader New England region, offering long-duration storage to balance intermittent renewable sources like wind and solar near infrastructure such as [[Seabrook Station]]. The technology’s readiness for immediate commercial deployment aligns with New Hampshire’s potential near-term needs for energy storage, especially under legislative initiatives like HB 710, which may encourage clean energy innovation. Potential applications in New Hampshire include grid power stabilization, supporting data center energy demands with sustainable backup power, and providing industrial facilities with reliable energy storage. While there is no direct evidence of Invinity’s engagement in New Hampshire or the Northeast U.S. specifically, their recent U.S. project with PNNL indicates a growing interest in North American markets, making regional deployment plausible. Their safe, non-flammable battery design could also appeal to New Hampshire’s focus on environmental and community safety in energy projects. ### Competitive Position Invinity Energy Systems competes in the long-duration energy storage market against companies like: - **[[ESS Inc]].**: Focuses on iron flow batteries, offering similar long-duration storage with a different chemistry. Invinity’s advantage lies in its proven vanadium technology and commercial deployments, though ESS may compete on cost in certain applications. - **[[Form Energy]]**: Developing iron-air batteries for multi-day storage, with significant funding ($200M+). Invinity’s current operational status provides a near-term edge, while Form Energy’s longer-duration focus poses a future challenge. - **[[Eos Energy Enterprises]]**: Specializes in zinc-based storage systems, with a strong U.S. presence. Invinity differentiates through its safety profile and recyclability, though Eos’s scale in the U.S. market is a competitive risk. Invinity’s unique advantages include its established track record, safety-focused design, and adaptability to various climates. Risks include potential cost pressures from competitors and the need for continued funding to scale production. ### Closing Note Invinity Energy Systems is at a commercial stage with a promising trajectory, well-positioned to capitalize on the growing demand for long-duration energy storage solutions. *Report generated December 24, 2025*