Logotype for Invinity Energy Systems plc

Invinity Energy Systems (IES) H1 2026 earnings summary

Event summary combining transcript, slides, and related documents.

Logotype for Invinity Energy Systems plc

H1 2026 earnings summary

22 Sep, 2026

Executive summary

  • Orders in H1 2026 surged nearly threefold year-on-year to over 34.2 MWh, with a forward order book just under 80 MWh and post-period orders reaching 77.2 MWh, excluding the major FlexBase contract.

  • Major project milestones included delivery of a 20.7 MWh system to Copwood VFB Energy Hub (Europe's largest) and selection for the FlexBase Group's 1.5 GWh project in Switzerland, with engineering milestones on track.

  • Technology based on proven vanadium flow batteries, with over 2,000 units delivered and 11+ GWh dispatched since 2022, serving datacentres, energy-intensive industries, grids, and governments worldwide.

  • Commercial focus sharpened on three core segments: standalone/co-located LDES, commercial/industrial sites, and AI infrastructure, where the company claims material advantages over incumbents.

  • The company is transitioning from a technology leader to a commercially scaling business, supported by a robust pipeline and cost reduction initiatives.

Financial highlights

  • Revenue and project grant income rose 97% year-over-year to £1.7m in H1 2026 (H1 2025: £0.8m), driven by increased project deliveries.

  • Gross loss reduced by 62% to £0.7m (H1 2025: £1.9m), reflecting improved margins from cost reduction and higher manufacturing activity.

  • Net loss increased 14% year-over-year to £12.1m, mainly due to higher R&D and administrative expenses.

  • Net cash at 30 June 2026 was £10.5m, down from £28.8m at year-end 2025, mainly due to operating cash outflows and investment in Copwood.

  • Warranty costs fell from £0.9m to £0.2m due to improved component performance and lower product costs.

Outlook and guidance

  • The committed orderbook exceeds 77 MWh for delivery through FY 2026-2028, covering most of FY 2026 and over half of FY 2027 revenue expectations.

  • Pipeline risk-weighted at just under 13 GWh, with North America as the largest opportunity due to strong incentives and local manufacturing plans.

  • Targeting a 5x increase in market share to nearly 5% of the global flow battery market by FY28, based on independent forecasts.

  • Revenue recognition for FY26 expected to be heavily weighted to H2.

  • Additional orders are expected from 0.8 GWh of signed frameworks and an 11.8 GWh development pipeline, supporting medium-term revenue visibility.

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