FUNDING TARGETS THE BOTTLENECK: INFRASTRUCTURE, NOT AIRFRAMES

The UK Department for Transport has confirmed eight successful projects in round one of the Zero Emission Flight Demonstrator competition, a funding programme delivered through Innovate UK, part of UK Research and Innovation. The competition forms part of the Jet Zero Research and Development Programme announced on 20 January 2026, and represents the practical implementation of a policy judgement that has become increasingly prominent in aviation decarbonisation strategy: that the constraint on zero-emission commercial flight in the near term is not primarily the aircraft, but the ground infrastructure and regulatory framework required to operate them.

Innovate UK committed a minimum of £8 million from DfT to the competition. The eight successful projects will receive approximately £7.2 million in DfT funding against total project costs of approximately £11.5 million, with the balance contributed by the participating organisations. Funding was structured with feasibility studies capped at £250,000 in total eligible costs and larger industrial research projects at up to £5 million, with up to 70% of costs covered depending on organisation size and a maximum grant of £3 million per enterprise. Awards are maximum indicative funding levels for projects lasting up to 24 months from August 2026. DfT and Innovate UK have confirmed they are reviewing the case for further funding through the competition and the best mechanism for providing it.

WHY THE INFRASTRUCTURE FOCUS MATTERS

The competition brief required that proposals progress the development of one or more of four areas: flight operations for zero-emission aircraft; ground handling and infrastructure technologies needed to handle zero-emission aircraft; standards and the regulatory environment for zero-emission commercial flights; or the evidence base on the feasibility of zero-emission aircraft for commercial aviation. All successful industrial research and feasibility study projects are expected to participate in the UK Civil Aviation Authority’s Hydrogen Challenge regulatory sandbox initiative — a mechanism designed to allow regulators and industry to develop the certification and operational frameworks for hydrogen aviation in parallel with the technology itself, rather than sequentially.

The rationale for this emphasis is straightforward. Hydrogen and battery-electric aircraft in development today cannot enter commercial service without the airport-side capability to refuel or recharge them within commercially viable turnaround times, without the safety cases and operational procedures that regulators require, and without an evidence base sufficient for airports to justify the capital investment involved. Aircraft development has attracted the majority of both private capital and public attention; the airport infrastructure that would allow those aircraft to operate has attracted considerably less. Round one of this competition is a deliberate correction of that imbalance.

HYDROGEN INFRASTRUCTURE: FOUR PROJECTS, £3.56 MILLION

Four of the eight projects address hydrogen. The largest single award — £2,124,651 against total costs of £3,417,518 — goes to Project HyPRIME (Hydrogen Propulsion Refuelling Infrastructure Mobile Ecosystem), led by ZeroAvia with partners ULEMCO, Geopura, Bristol Airport and Birmingham Airport. HyPRIME will develop, build and demonstrate a mobile hydrogen refuelling vehicle capable of supporting liquid hydrogen-powered aircraft in a live airport environment, testing whether LH2 aircraft refuelling can be completed within standard commercial turnaround times and whether boil-off hydrogen can be captured to fuel a hydrogen aircraft tug and a power generation unit for other airport applications.

Badgerworks leads the CHOSAN project (Cryogenic Hydrogen Optimised Systems for Aviation), receiving £1,153,790 against total costs of £1,722,191, with partners Weslake, Unitrove Innovate and Bristol Airport. CHOSAN will demonstrate liquid hydrogen as an aviation fuel through a programme of real-world point-to-point flights on regional routes of up to 500 kilometres, generating operational data to support regulators and policymakers. Equilibrion, working with Bristol Airport, receives £93,164 against total costs of £135,237 for a study developing an evidence-based pathway for introducing liquid hydrogen infrastructure at Bristol. Urban Foresight leads the SATE Hydrogen Roadmap with £190,080 of £249,943, working with Cormorant Seaplanes, Electric Aviation Maven and HITRANS to assess hydrogen aviation across the Scottish Highlands and Islands — a region whose remote and island communities depend on air services facing rising costs, ageing fleets and emissions pressure simultaneously.

ELECTRIC CHARGING AND DEMONSTRATION FLIGHTS: THREE PROJECTS, £3.47 MILLION

Vertical Aerospace leads Project ECLiPSE (Electrified Charging and Liquid-cooling Provision for Support of e-flights) with £1,752,747 of £3,372,793 in total costs, partnered with the University of Bath and InnCat. ECLiPSE addresses the cost, site integration time and availability of high-power charging and thermal management systems for electric aircraft, with the objective of establishing a route to higher charging power that improves the commercial viability of electrified routes for operators. SYSELEK (UK) leads SPARC-AIR (Scalable Power Architecture to Rapidly Charge Aircraft) with £197,308 of £249,997, working with the University of Warwick and Daedal Research on a feasibility study producing a published blueprint for UK airport electrification, covering commercial models, power system sizing and regulatory aspects of safe ground operations.

Project SEAN (Scottish Electric Aviation Network) receives £1,522,896 of £2,125,155 in total costs, led by Bristow Helicopters with a consortium including Highlands and Islands Airports, Skyports Infrastructure, Electric Aviation Maven, HITRANS and BETA Technologies. SEAN will deliver a three-month series of demonstration flights using the BETA Alia CX300 aircraft, developing an evidence-based hub-and-spoke network using Inverness Airport as a hub connecting to other Scottish airports. The project explicitly builds on experience from Norway’s test arena for zero and low emission aviation and will cover flight planning, pilot qualification, operational risk assessment, regulatory alignment and the development of electrification and charging concepts of operations.

CONTRAILS: THE NON-CO2 PROBLEM

The eighth project addresses a dimension of aviation’s climate impact that is frequently overlooked in zero-emission discussions. Sky-Zero, led by Electric Aviation Group with partner Viridian Intelligence, receives £174,772 of £249,674 to develop operational pathways for avoiding contrail formation in zero-emission flight. Contrails and other non-CO2 effects represent a significant proportion of aviation’s total climate forcing, and eliminating an aircraft’s carbon emissions does not by itself eliminate its contrail formation. Sky-Zero will analyse UK-specific meteorological data and flight patterns to develop decision-support tools helping airlines plan routes that avoid contrail-forming conditions, alongside monitoring, reporting and verification methods to validate the climate benefits achieved.