Invinity Accelerates Cost Cuts and Builds Pipeline as Long-Duration Storage Scales Up

Invinity Energy Systems ( (GB:IES) ) has issued an announcement.

Invinity Energy Systems reported strong progress on its Endurium cost-reduction programme, now targeting a minimum 66% cut in product cost per kWh versus its prior VS3 batteries by late 2026, some 18 months ahead of earlier expectations. The company has launched over 50 workstreams, including engineering upgrades, simplified components and manufacturing efficiencies, to expand its addressable market and sharpen price competitiveness.

Operationally, Invinity has manufactured or delivered more than 40 MWh of products so far this year, with its fleet having discharged over 8.7 GWh in the field, underscoring growing proof of performance. Its 20.7 MWh Copwood project in East Sussex is due for full delivery this week and, once commissioned, should become Europe’s largest vanadium flow battery installation and start generating grid revenue in the second half of 2026.

The company is also advancing plans to scale global capacity, including establishing a U.S. manufacturing facility later this year to complement its existing California service base. Management highlighted a growing commercial pipeline spanning major commercial, industrial and datacentre opportunities, as well as participation in multiple long-duration energy storage schemes in the U.K., Canada, India and other markets.

Invinity’s near-term revenue profile has been affected by delays to two Hungarian solar-plus-storage projects, which are now unlikely to contribute to 2026, although the contracts remain in place and the batteries may be redeployed to alternative sites. The company’s 2026–2028 outlook shows £14m of potential 2026 commercial revenue and grant income rising to £49m in 2027 and £234m in 2028, though management notes that timing and conversion risks remain, particularly around projects still in negotiation or development.

Projects linked to U.S. Department of Energy funding have also been pushed back, with the 12 MWh PNNL project now expected in 2026 and three additional DOE-backed projects moving into final contract talks for delivery beginning in 2027. Invinity said its 2025 audit is well advanced and reiterated that it is on track to publish its 2025 annual report by 30 June 2026, while its chief executive framed the cost-cutting and pipeline conversion efforts as key to achieving long-term leadership in long-duration energy storage.

The most recent analyst rating on (GB:IES) stock is a Buy with a £40.00 price target. To see the full list of analyst forecasts on Invinity Energy Systems stock, see the GB:IES Stock Forecast page.

Spark’s Take on IES Stock

According to Spark, TipRanks’ AI Analyst, IES is a Neutral.

Invinity Energy Systems’ overall stock score is primarily impacted by its poor financial performance, with significant losses and negative cash flow. While technical indicators and valuation metrics are weak, recent strategic initiatives and corporate events provide some positive outlook. The company’s ability to execute on its strategic plans and improve financial metrics will be crucial for future performance.

To see Spark’s full report on IES stock, click here.

More about Invinity Energy Systems

Invinity Energy Systems is a U.K.-listed manufacturer of utility-grade energy storage, specialising in vanadium flow batteries for long-duration applications. Its Endurium product line targets commercial, industrial and grid-scale customers across Europe, North America and Asia, with a focus on providing safe, durable storage for renewable power and grid services.

Average Trading Volume: 681,714

Technical Sentiment Signal: Sell

Current Market Cap: £99.53M

For an in-depth examination of IES stock, go to TipRanks’ Overview page.