Invinity Energy Systems plc (IES) Fair Value & Analysis
Industrials · GB · Market cap 137M GBX
Fair value as of: Jul 18, 2026
From 1 valuation models · updated 20 days ago
Share price −15.7% over the past month.
Below-average quality, and screening another 82% overvalued on our models.
What matters now
- The price sits above even our optimistic bull case (£0.0595). The favourable scenario is already priced in.
- Weak quality (28/100) and above fair value at the same time, the margin of safety is missing on both counts.
- The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution.
- A fairly wide model range (£0.0255 to £0.0595) leaves room in how you read the outcome.
Price vs Fair Value (5 years)
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 18, 2026.
How to read this chart
60‑month range £0.0904 – £1.98 · fair‑value band £0.0255 – £0.0595 · the £0.2400 price screens above the £0.0425 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Jul 18, 2026.
Analysis
Invinity Energy Systems plc (IES) currently trades at £0.2400, while our model-based Fair Value estimate is £0.0425, implying the stock looks roughly 82.3% overvalued today. We read business quality at 28/100 (below-average quality), in the Industrials sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium, the entry price still matters most (evidence: low).
Trailing-twelve-month revenue stands at £3.6M. Revenue declined 84.4% year over year. It earns a return on equity of -32.5%. The balance sheet holds a net cash position of £26.8M. Fundamentals as of Jul 18, 2026
Our scenario range runs from £0.0255 (bear case) to £0.0595 (bull case); at £0.2400, the current price sits above that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. For context, the median of 10 Industrials peers we cover trades at -48% fair-value upside, at -82%, IES screens richer than that median.
Fair Value models
Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.
All 1 models by family
Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Jul 18, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 29 · Market factors (momentum, volatility) 44
Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.
About the company
Invinity Energy Systems plc manufactures and sells vanadium flow batteries and related hardware for energy storage markets in Asia, Australia, Europe, and North America. It also provides other services. The company sells its products under the Invinity ENDURIUM and Invinity VS3 brands.
Full company description
Invinity Energy Systems plc manufactures and sells vanadium flow batteries and related hardware for energy storage markets in Asia, Australia, Europe, and North America. It also provides other services. The company sells its products under the Invinity ENDURIUM and Invinity VS3 brands. It serves utilities and power producers, commercial and industrial, and independent industries. Invinity Energy Systems plc was incorporated in 2006 and is based in London, the United Kingdom.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Invinity Energy Systems plc reported revenue of £8.2M in FY2025 versus £3.2M in FY2021, a compound +26.6%/yr. Reported net income was −£24.1M in FY2025.
IES screens 82% overvalued. Compare with Contemporary Amperex Technology Co →
Peer Group
Electrical Equipment & Parts · 519 stocks
How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.
Valuation Multiples vs Electrical Equipment & Parts median · lower = cheaper
Snowflake
Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.
VALUE 0: the price sits above our fair-value range.
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.
Similar stocks
10 more Electrical Equipment & Parts stocks, each showing price versus our Fair Value estimate (as of Jul 18, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Contemporary Amperex Technology Co 3750 | HK$675.50 | HK$391.44 | -42% |
| ABB Ltd ABBN | CHF 83.82 | CHF 35.46 | -58% |
| Delta Electronics (Thailand) Public Company TDED | 12.39 SGD | 1.48 SGD | -88% |
| LG Energy Solution, Ltd 373220 | 334,000 KRW | 201,455 KRW | -40% |
| WEG S.A WEGE3 | 13,210 ARS | 7,948 ARS | -40% |
| Sungrow Power Supply Co 300274 | ¥114.79 | ¥123.83 | +8% |
| Shenzhen Inovance Technology Co 300124 | ¥63.43 | ¥33.04 | -48% |
| HD Hyundai Electric Co 267260 | 823,000 KRW | 371,133 KRW | -55% |
| LS ELECTRIC Co 010120 | 190,000 KRW | 31,517 KRW | -83% |
| Sieyuan Electric Co 002028 | ¥151.73 | ¥71.69 | -53% |
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Frequently asked questions
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How we calculate Fair Value
Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.
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