On the International Day of Clean Air, a closer look at Phlair’s EIC-backed plan to cut the cost of direct air capture

Brussels, September 7th 2026
Summary
  • Phlair GmbH, an EIC Accelerator beneficiary, is developing an electrochemical Direct Air Capture technology called CAPTURE.
  • CAPTURE received about EUR 2.5 million in EIC support to move the Hydrolyzer stack from TRL 5 to TRL 7 and to build a demonstration plant in Ismaning, Germany.
  • The project reports concrete stepwise results including a commissioned demonstration plant, TÜV certification, load-flexible operation on intermittent solar power, and a tested A-sample commercial-sized stack.
  • Phlair cites an ambition to drive capture costs below €75 per tonne at megatonne scale and has announced a USD 30 million removal offtake package with major corporate buyers.
  • Important uncertainties remain around long term costs, energy and materials inputs, verification of removals, storage pathways and the policy and industrial scaling needed to reach gigatonne-level removal.

Phlair and CAPTURE: an EIC-backed push to make Direct Air Capture cheaper and grid friendly

The United Nations International Day of Clean Air for Blue Skies on 7 September is intended to highlight links between air quality and climate policy. On that date the European Innovation Council Community published a profile of Phlair GmbH, a German start-up supported by the EIC Accelerator that is developing an electrochemical Direct Air Capture technology under the CAPTURE project. The company positions its approach as a low-temperature, fully electric pH-swing process that can run flexibly on intermittent renewable electricity and scale to commercial volumes while cutting current DAC cost premiums.

Why remove CO2 from the air and what scale is needed

Scientific and policy assessments are clear that cutting emissions alone will not be enough to meet stringent climate targets. The Intergovernmental Panel on Climate Change estimates that millions to billions of tonnes of additional CO2 removal will be required by mid century depending on the pathway. Phlair refers to an IPCC figure of roughly 6 gigatonnes per year of removals by 2050 required for a 1.5 degree scenario. European policy and modelling cited by the company project a need for hundreds of megatonnes of carbon capture by 2040 with a material role for Direct Air Capture in that mix.

Direct Air Capture (DAC):Direct Air Capture denotes engineered systems that chemically remove CO2 directly from ambient air. Unlike point source capture that treats concentrated exhaust streams, DAC must work on low ambient CO2 concentrations. It is attractive for permanence because it can be paired with secure geological storage. Key challenges are energy consumption per tonne captured, capital and operating costs, material durability, and the logistics and cost of subsequent storage or utilization.

Phlair’s technical approach and how it differs from established DAC methods

Phlair describes an electrochemical, pH-swing process implemented in a modular stack called the Hydrolyzer. The company frames this as a fully electric, low-temperature route intended to be compatible with intermittent behind-the-meter solar and other renewables. The proposition aims to reduce the steep energy and thermal management burdens associated with several incumbent DAC routes that rely on high-temperature heat or energy intensive sorbent cycling.

pH-swing electrochemical capture (basic idea):A pH-swing capture process uses a solution or sorbent that absorbs CO2 at one pH and then releases concentrated CO2 after an induced pH change. In electrochemical pH-swing systems the pH change is produced by electrical operation of electrodes or stacks rather than boiling or high temperature regeneration. The potential advantages are lower thermal energy needs, finer electrical control, and compatibility with variable renewable electricity. Practical obstacles include electrode lifetime, parasitic losses, materials costs and scale up of fluid handling and stacks.

What the CAPTURE project has delivered so far

CAPTURE is funded under the EIC Accelerator with an EU contribution reported by official project pages of EUR 2,494,672.92. The project runs from 1 November 2024 to 31 October 2026 with the objective of taking the Hydrolyzer from technology readiness level 5 to TRL 7 by building and operating a demonstration plant at the company headquarters in Ismaning, Germany. Phlair has published a list of milestones and achievements to date.

ItemDetail
EIC grant IDCAPTURE Grant agreement ID: 101189103
Net EU contribution€2,494,672.92
Project period1 Nov 2024 to 31 Oct 2026
Core hardwareHydrolyzer modular electrochemical stack (Gen3 development)
Demonstration sitePhlair HQ, Ismaning, Germany
Reported technical milestonesCommissioned demonstration plant, multi-hour operation, TÜV certification, load-flexible operation on solar power, first A-sample commercial-sized stack tested
Commercial traction announcedUSD 30 million offtake commitment from a mix of corporate customers
Company stated cost ambitionCapture costs below €75/tonne at megatonne scale (as claimed by company)
Scale ambitions500,000 t-CO2/year by 2030 and 100 Mt-CO2/year by 2045 (company vision statements)

The project reports that the demonstration plant has been commissioned and run for multiple hours to collect performance data. It also reports TÜV certification which indicates that an accredited technical body has assessed elements of safety or technical standards relevant for deployment. The project also reports that the system has demonstrated operation flexible enough to run on intermittent solar input. In parallel Phlair says it has built and tested an A-sample commercial-sized stack that shows uniform compression and scaleable performance characteristics.

Technology Readiness Levels (TRL):TRLs are a common way to communicate how mature a technology is. TRL 5 typically denotes a validated component in a relevant environment. TRL 7 denotes a system prototype demonstrated in an operational environment. Moving from TRL 5 to TRL 7 puts emphasis on integrating components into a functioning prototype and demonstrating operation outside the lab.

Commercial signals and the meaning of offtake agreements

Phlair reports a USD 30 million carbon dioxide removal offtake package with large corporate names listed including Google, JPMorgan, Stripe, H&M and McKinsey. For cleantech developers of nascent removal technologies, signed offtake agreements are an important revenue signal and can de-risk early investment. They are commonly used to show market interest and to underpin fund raising.

What an offtake agreement typically does and does not guarantee:An offtake usually secures a buyer for a future product or service subject to technical and contractual conditions. It reduces market risk and can help with financing. It does not guarantee that the technology will reach the claimed cost or production scale. Often such agreements include clauses on delivery timing, quality, third party verification and price adjustments based on realised performance. Large-name customers add credibility but their involvement is one factor rather than proof of eventual mass deployment.

A measured view on costs, energy, verification and storage

Phlair states a target of capture costs below €75 per tonne at megatonne scale. That number, if achievable at scale, would materially change the economics of engineered removals. It is important to treat such cost targets as conditional projections that depend on assumptions about capital costs, learning rates, materials sourcing, energy prices, plant capacity factors, and the cost of delivering secure, permanent storage or long term utilization. Independent lifecycle assessments and third party verification will be essential to confirm net removal and to quantify upstream emissions and energy consumption.

Key uncertainties to watch:Energy input and source. Even purely electric DAC systems require electricity for electrochemical operation and for air handling. How much energy per tonne in practice is a critical metric. Materials and durability. Electrochemical stacks depend on advanced materials and seals. Replacement rates affect operating expenses. Manufacturing scale and capital intensity. Mass manufacture of stacks and balance of plant will determine capital cost trajectory. Permanent storage and permitting. Captured CO2 must be stored or used permanently and the chain must be verified. Policy, accounting and carbon markets. Stable rules on measurement, reporting and verification and on storage liability influence marketability. Supply chains and environmental impacts. Critical materials and chemical consumables create supply risk and potential environmental trade offs.

Policy and ecosystem context in Europe

The CAPTURE project sits within a wider European policy push to mobilise innovation and industry for both clean air and climate goals. Horizon Europe and the EIC provide grant and coaching support aimed at de‑risking and scaling deep tech. The EIC Business Acceleration Services also offer networking, procurement and investor readiness channels that projects can use to bring pilots to market. At the same time, large scale carbon removal will require industrial build out, clear permitting pathways, long term storage infrastructure and verifiable accounting frameworks able to integrate removal credits into corporate and public climate targets.

EIC Accelerator role:The EIC Accelerator provides blended finance and grant support to innovative SMEs. For CAPTURE the EIC-funded portion reported publicly is approximately €2.5 million, intended to support demonstration and de-risking to TRL 7. That kind of funding is a midpoint contribution. Larger commercial rollouts will depend on further private and public capital and on successful scale up of manufacturing and supply chains.

What to watch next

Near term evidence to look for includes independent energy and cost per tonne metrics from the demonstration plant under representative operating regimes, lifecycle and supply chain analysis, third party verification of removals and storage, and clarity on contracts for long term CO2 storage. Progress in mass manufacturing of stacks and the ability to reproduce performance across multiple units will be the next major industrial test. Finally, transparency on contract terms of the reported USD 30 million offtake and on timelines for delivery will be important for assessing the path from demonstrator to commercial scale.

Practical takeaways for policymakers and investors

Policymakers should design finance, regulatory and permitting frameworks that reward verified, permanent removals without creating perverse incentives that delay emissions reductions. Investors should seek independent technical due diligence and insist on verified MRV and storage pathways. For technology developers the combined task is to prove repeatable technical performance and to bring down costs through manufacturing scale, while minimising lifecycle emissions and material impacts.

Phlair’s CAPTURE project illustrates the type of engineering innovation the EIC aims to support. The reported progress is notable and demonstrates the value of demonstration funding. The broader challenge is still to translate promising pilot results into cost competitive, durable and verifiable removals at the scales that climate science indicates will be required.

Where to find more information

Official project details including grant ID, EU contribution and project dates are available on the CORDIS and Horizon Europe project pages. The company website provides technical summaries and commercial information. Independent technical notes, lifecycle assessments and third party verification reports are the most useful follow up material for readers who want to assess claimed costs and energy performance.

SourceWhat it contains
CORDIS / Horizon Europe Project PageGrant agreement ID 101189103, EU contribution €2,494,672.92, project timeline, objectives and company coordinator details
EIC Community Story (7 Sept 2026)Summary of CAPTURE milestones, demonstration plant commissioning, TÜV certification, solar-compatible operation and commercial offtake announcement
Company website and press materialsTechnical descriptions of the Hydrolyzer, offtake announcements and commercial ambitions
Independent verification documentsLifecycle assessments, energy per tonne metrics and third party MRV reports if and when published