Invinity Energy Systems plc (IESVF) Stock Analysis
Educational signal · not a buy or sell recommendation · How to read this
Market cap $169M is the value of all shares combined.
For informational purposes only. Not financial advice. Machine-generated analysis by Stock Expert AI — model gemini-2.0-flash, generated Mar 16, 2026. Editorial oversight is systemic, not page-by-page. Editorially accountable: Sedat ANAK, Founder and Editor-in-Chief. Data sources: Financial Modeling Prep, Yahoo Finance, SEC EDGAR
Quick AnswerInvinity Energy Systems plc (IESVF) trades at $0.296. Invinity Energy Systems plc specializes in manufacturing and selling vanadium flow batteries for energy storage across multiple continents. Market cap: $169M, Sector: Industrials.
Price as of Sep 11, 2026 · Last analyzed: Mar 16, 2026Analyst Coverage for IESVF: IESVF does not currently have published analyst price targets in our coverage universe. This is common for smaller-cap names with limited Wall Street coverage. In the absence of analyst consensus, our AI model evaluates IESVF against Industrials peers across nine fundamental dimensions and assigns a neutral fundamental signal based on the underlying data.
These figures come from statements filed 15 months ago — the most recent this company has published.
No score published: this stock trades under $10,000 on a typical day, so the price beside it is not one you could reliably act on.
IESVF: 1/2 scored disciplines lean bearish. Dominant signal: Ray Dalio bullish.
How is this calculated? →AI simulations built from the named investors' published principles. Not affiliated with, endorsed by, or the opinion of these individuals. How these lenses are built
Invinity Energy Systems plc (IESVF) Industrial Operations Profile
Invinity Energy Systems plc, based in the UK, operates in the energy storage market, providing vanadium flow batteries to utilities, power producers, and commercial entities. With a focus on Asia, Australia, Europe, and North America, the company aims to address the growing demand for grid-scale energy storage solutions.
What Is the Investment Thesis for IESVF?
Invinity Energy Systems presents an investment opportunity within the growing energy storage sector, specifically in vanadium flow battery technology. The increasing demand for long-duration energy storage solutions, driven by the expansion of renewable energy sources, positions Invinity for potential growth. Key value drivers include expanding production capacity, securing large-scale deployments, and achieving cost reductions through economies of scale. However, the company's negative gross margin (-127.0%) and negative ROE (-32.5%) highlight significant financial challenges. The high debt-to-equity ratio of 4.40 also warrants careful consideration. Success hinges on Invinity's ability to scale production, improve profitability, and secure a significant share of the long-duration energy storage market.
Based on FMP financials and quantitative analysis
IESVF Key Highlights
Market capitalization of $169M indicates a relatively small player in the energy storage market.
- Negative gross margin of -127.0% signals significant challenges in achieving profitability.
- Return on Equity (ROE) of -32.5% reflects poor profitability and inefficient use of equity.
- Debt-to-Equity ratio of 4.40 suggests a highly leveraged balance sheet, increasing financial risk.
- Free Cash Flow (FCF) of $-0.00B indicates the company is not generating positive cash flow from its operations.
Who Are IESVF's Competitors?
IESVF is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.
| Company | Price | Change | Market Cap | MoonshotScore |
|---|---|---|---|---|
| ESS Essex Property Trust, Inc. | $273.50 | +0.79% | $17.6B | — |
| SLDP Solid Power, Inc. | $2.53 | +2.32% | $569M | — |
| FCEL FuelCell Energy, Inc. | $15.59 | -5.91% | $1.25B | — |
| EAF GrafTech International Ltd. | $6.16 | -0.16% | $160M | — |
| SKYX SKYX Platforms Corp. | $1.36 | +3.03% | $183M | — |
| ESP Espey Mfg. & Electronics Corp. | $63.69 | +1.10% | $191M | 715-pillar |
| NEOV NeoVolta Inc. | $3.67 | -6.14% | $202M | — |
| MVST Microvast Holdings, Inc. | $0.62 | -0.22% | $208M | — |
AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance
What Are IESVF's Key Strengths?
Specialized in vanadium flow battery technology.
- Long-duration energy storage capabilities.
- Serves diverse customer segments (utilities, C&I).
- Global presence in key energy storage markets.
What Are IESVF's Weaknesses?
Negative gross margin and ROE.
- High debt-to-equity ratio.
- Limited financial resources compared to larger competitors.
- Reliance on external funding for growth.
What Could Drive IESVF Stock Higher?
Increasing demand for long-duration energy storage solutions driven by renewable energy expansion.
- Potential for securing large-scale utility contracts in the next 1-2 years.
- Expansion into the North American energy storage market.
- Development and launch of integrated energy storage solutions within the next 1-2 years.
What Are the Key Risks for IESVF?
Negative return on equity (-39.4%) — the business is not currently generating profit on shareholder capital.
- Weak fundamentals — a Piotroski F-Score of 2/9 flags soft profitability, leverage or efficiency.
- Negative gross margin and ROE indicate financial instability.
- High debt-to-equity ratio increases financial risk.
- Competition from lithium-ion batteries and other storage technologies.
- Fluctuations in vanadium prices impacting profitability.
- Regulatory changes impacting energy storage deployment.
What Are the Growth Opportunities for IESVF?
- Expanding into the North American Market: Invinity has the opportunity to increase its presence in the North American energy storage market, which is experiencing significant growth due to increasing renewable energy mandates and grid modernization initiatives. By establishing strategic partnerships and securing pilot projects, Invinity can demonstrate the value proposition of its vanadium flow batteries to utilities and commercial customers. The North American energy storage market is projected to reach multi-billion dollar valuation within the next five years.
- Securing Large-Scale Utility Contracts: Invinity can drive revenue growth by securing large-scale contracts with utilities seeking to integrate long-duration energy storage into their grid infrastructure. Vanadium flow batteries are well-suited for providing grid-scale energy storage, offering long discharge durations and high cycle life. By showcasing successful deployments and demonstrating cost-effectiveness, Invinity can position itself as a preferred provider of energy storage solutions for utilities. These contracts can be secured within the next 2-3 years.
- Penetrating the Commercial and Industrial (C&I) Sector: Invinity can expand its reach by targeting the commercial and industrial (C&I) sector, which is increasingly adopting energy storage solutions to reduce energy costs, improve power quality, and enhance resilience. Vanadium flow batteries can provide backup power, peak shaving, and demand response capabilities for C&I customers. By developing tailored solutions and partnering with energy service companies, Invinity can capture a significant share of the C&I energy storage market. This market segment is expected to grow substantially over the next 3-5 years.
- Developing Integrated Energy Storage Solutions: Invinity can enhance its value proposition by developing integrated energy storage solutions that combine vanadium flow batteries with other technologies, such as solar PV and microgrid controllers. By offering complete energy storage solutions, Invinity can simplify the deployment process for customers and increase its competitive advantage. These integrated solutions can be developed and launched within the next 1-2 years.
- Reducing Manufacturing Costs through Scale: As Invinity increases its production volume, it can achieve economies of scale and reduce its manufacturing costs. This will improve its competitiveness and enable it to offer more attractive pricing to customers. By investing in automation and optimizing its supply chain, Invinity can drive down its manufacturing costs and improve its profitability. Cost reductions are expected to be realized over the next 2-3 years as production volumes increase.
What Are IESVF's Competitive Advantages?
- Proprietary vanadium flow battery technology.
- Long-duration energy storage capabilities.
- High cycle life of vanadium flow batteries.
- Established presence in key energy storage markets.
What Does IESVF Do?
Invinity Energy Systems plc, established in 2006 and headquartered in London, specializes in the design, manufacture, and sale of vanadium flow batteries (VFBs) and associated hardware. These batteries are primarily used for stationary energy storage applications, offering a long-duration, high-cycling alternative to lithium-ion batteries. The company's VFBs, marketed under the Invinity ENDURIUM and Invinity VS3 brands, cater to a diverse clientele, including utilities, independent power producers, and commercial and industrial entities. Invinity's geographic footprint spans Asia, Australia, Europe, and North America, reflecting its ambition to be a global leader in the VFB market. The company targets applications such as grid-scale energy storage, microgrids, and behind-the-meter storage for commercial and industrial customers. Invinity aims to provide reliable, long-lasting energy storage solutions that support the integration of renewable energy sources and enhance grid stability. Invinity continues to innovate in VFB technology, focusing on improving energy density, reducing costs, and expanding the range of applications for its products.
What Products and Services Does IESVF Offer?
- Manufactures vanadium flow batteries (VFBs).
- Sells VFBs to utilities and power producers.
- Provides energy storage solutions for commercial and industrial clients.
- Offers long-duration energy storage capabilities.
- Supports grid stabilization through energy storage.
- Facilitates the integration of renewable energy sources.
- Markets products under the Invinity ENDURIUM and Invinity VS3 brands.
How Does IESVF Make Money?
- Sells vanadium flow batteries and related hardware.
- Provides installation and maintenance services.
- Generates revenue from project development and consulting.
- Focuses on long-term energy storage solutions.
What Industry Does IESVF Operate In?
Invinity Energy Systems operates within the rapidly expanding energy storage market, driven by the increasing adoption of renewable energy sources and the need for grid stabilization. The industry is characterized by intense competition, with various technologies vying for market share, including lithium-ion batteries, flow batteries, and other emerging storage solutions. The vanadium flow battery segment, in which Invinity specializes, is gaining traction due to its long lifespan, high cycle life, and non-flammability. The global energy storage market is projected to reach significant value in the coming years, presenting substantial opportunities for companies like Invinity.
Who Are IESVF's Key Customers?
- Utilities seeking grid-scale energy storage.
- Independent power producers integrating renewable energy.
- Commercial and industrial businesses needing backup power.
- Microgrid operators requiring energy storage solutions.
Research confidence
Thin evidence — scoring coverage unknown. Treat this as a starting point, not a conclusion.
- ● Scoring coverage unknown
- ● Price is current
- ● Latest filing 254 days ago
- ● No analyst coverage
- ● Reported in GBP, converted to USD
MoonshotScore History
Recorded daily since 2026-08-23 · 20 snapshots
| 2026-08-23 | 41 |
| 2026-08-27 | 41 |
| 2026-08-31 | 41 |
| 2026-09-04 | 41 |
| 2026-09-08 | 41 |
| 2026-09-11 | 41 |
What changed?
The score has stayed at 41.
Over the same 19 days the stock moved -13.3%.
Invinity Energy Systems plc Financial Trajectory
Invinity Energy Systems plc (IESVF) reported $10.7M in revenue for Q4 FY2025, reflecting 2993.7% growth compared to the prior quarter. The company recorded a net loss of $19.1M, with diluted EPS of $-0.04. Quarter-over-quarter revenue has been mixed, typical for a micro-cap company operating in Industrials. Across the four most recent quarters, IESVF averaged $-0.04 in diluted EPS.
Company Profile
Invinity Energy Systems plc operates in the Electrical Equipment & Parts industry within the Industrials sector. It is headquartered in London, GB. The company is led by CEO Jonathan Anthony Frank Marren. IESVF has traded publicly since 2020.
How Invinity Energy Systems plc Is Valued
Invinity Energy Systems plc carries a market capitalization of $169M, placing it in the micro-cap category.
Key Financial Metrics
Return on equity for Invinity Energy Systems plc stands at -39.4%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is -29.7%, showing how much profit it generates from its asset base. Its free cash flow yield is -25.1%, a gauge of the cash the business throws off relative to its market value. A current ratio of 3.81 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is -21.2%, the inverse of the P/E and a quick read on earnings relative to price.
Financial Health
Invinity Energy Systems plc's Piotroski F-Score is 2/9, a 9-point checklist of profitability, leverage and efficiency — flagging fundamental weakness worth scrutiny. Its Altman Z-Score of 4.46 places it in the safe zone, indicating low near-term bankruptcy risk.
Forward Outlook
Wall Street analysts project Invinity Energy Systems plc revenue of about $13.1M for fiscal 2026, with EPS near $-0.04. The estimate reflects 4 contributing analysts.
IESVF Financials
Fundamental Snapshot
Based on FMP financials and quantitative analysis · FY 2025
Bull Case vs Bear Case
Bull Case
- Specialized in vanadium flow battery technology.
- Long-duration energy storage capabilities.
- Serves diverse customer segments (utilities, C&I).
- Global presence in key energy storage markets.
Bear Case
- Negative gross margin and ROE.
- High debt-to-equity ratio.
- Limited financial resources compared to larger competitors.
- Reliance on external funding for growth.
AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · March 2026
Recent Quarterly Results
| Quarter | Revenue | Net Income | EPS |
|---|---|---|---|
| Q4 FY2025 | $11M | -$19M | -$0.04 |
| Q2 FY2025 | $346,397.054 | -$13M | -$0.03 |
| Q4 FY2024 | $5M | -$16M | -$0.04 |
| Q2 FY2024 | $2M | -$15M | -$0.06 |
Q4 FY2025 · filed 31 Dec 2025 · Financial Modeling Prep
Based on FMP financials and quantitative analysis · Converted to USD from GBP at today's rate
IESVF Latest News
No recent news available for IESVF.
IESVF Analyst Consensus
Consensus Rating
Aggregated Buy/Hold/Sell recommendations collected by Financial Modeling Prep for IESVF.
Price Targets
Wall Street price target analysis for IESVF.
IESVF MoonshotScore
MoonshotScore is Stock Expert AI's proprietary 0-100 research rating, not a buy or sell recommendation. No MoonshotScore is published for IESVF; grades run from A+ (80-100) to F (below 30).
IESVF OTC Market Information
The OTC Other tier represents the lowest tier of the OTC market, indicating that Invinity Energy Systems plc may not meet the minimum financial standards or reporting requirements of higher tiers like OTCQX or OTCQB. Companies in this tier may have limited operating history, be in financial distress, or choose not to comply with stricter disclosure standards. Investing in companies on the OTC Other tier carries significant risks due to the potential for limited information and increased volatility compared to exchange-listed stocks.
- OTC Tier: OTC Other
- Limited financial disclosure increases information asymmetry.
- Lower trading volume can lead to price volatility.
- Potential for wider bid-ask spreads increases transaction costs.
- Higher risk of fraud or manipulation compared to exchange-listed stocks.
- OTC Other tier companies may have limited operating history or be in financial distress.
- Verify the company's registration and legal standing.
- Review available financial statements and disclosures.
- Assess the company's management team and track record.
- Research the company's industry and competitive landscape.
- Evaluate the company's business model and revenue streams.
- Understand the risks associated with investing in OTC stocks.
- Consult with a financial advisor before investing.
- Company has an operating history since 2006.
- Company has a physical headquarters in London, UK.
- Company serves recognizable industries (utilities, power producers).
- Company has a global presence (Asia, Australia, Europe, North America).
Invinity Energy Systems plc Industrials Stock: Key Questions Answered
Is IESVF a good stock?
Stock Expert AI does not rate IESVF buy, sell or hold. Invinity Energy Systems plc has no MoonshotScore yet; read the financial checkup, analyst consensus and risks directly. Whether it fits is your call: check what it sells, whether it earns, what the price assumes, and what would prove you wrong.
What are the main risks for IESVF?
The main risks for Invinity Energy Systems plc include its negative gross margin and ROE, indicating significant financial challenges. The high debt-to-equity ratio also poses a financial risk.
What are the key factors to evaluate for IESVF?
Evaluate IESVF on fundamentals, analyst consensus, and risk factors. Return on Equity (ROE) of -32.5% reflects poor profitability and inefficient use of equity. Not financial advice.
How frequently does IESVF data refresh on this page?
IESVF's price was last updated on Sep 11, 2026 and refreshes on page view during U.S. market hours; the quote is a provider snapshot, not an exchange feed. Fundamentals follow quarterly filings. V2 calculations are scheduled daily at 10:15 UTC; the score's own date shows its last successful run.
What has driven IESVF's recent stock price performance?
Invinity Energy Systems plc (IESVF) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Specialized in vanadium flow battery technology. See the News tab for the latest drivers. Past performance does not predict future results.
Should investors consider IESVF overvalued or undervalued right now?
Invinity Energy Systems plc (IESVF) has no trailing P/E available here, so lean on price-to-sales and cash flow in the Financials tab. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.
Can I buy fractional shares of IESVF?
Yes, most major brokerages offer fractional shares of Invinity Energy Systems plc (IESVF) with no minimum purchase requirement. This means you can invest any dollar amount regardless of the share price. Check your brokerage platform for specific terms, fees, and fractional share availability.
How can I track IESVF's earnings and financial reports?
Invinity Energy Systems plc (IESVF) reports quarterly earnings approximately 4-6 weeks after each fiscal quarter ends. You can track earnings dates, revenue and EPS estimates, and actual results on this page's Financials tab. Earnings surprises (beats or misses) often cause significant short-term price moves. Your brokerage can send alerts for IESVF earnings announcements.
Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.
Official Resources
MoonshotScore is not published for this security.
Data provided for informational purposes only.
- Financial data is based on the most recent available information.
- OTC market data may be less reliable than exchange-listed data.