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VTOL hydrogen jet maker Sirius Aviation AG enlists Australia’s Marathon Group to develop zero-emission airports
SWITZERLAND-based developer of the world’s first VTOL (vertical take-off and landing) hydrogen-powered passenger jet aircraft – Sirius Aviation AG – is partnering with Australia’s Marathon Group to help develop zero emission airports.
Marathon Group is a leader in hydrogen and renewable energy. Founded nearly 40 years ago in Victoria's Gippsland region, over the past decade Narathon Group has formed a global consortium specializing in hydrogen, waste management, transport, renewable energy, large-scale BESS storage, solar farm development, and infrastructure transformation. 
Marathon Group also holds key land for offshore wind and airport development.
“This partnership with Sirius Aviation AG advances our mission to drive sustainable energy and pioneer innovations in hydrogen aviation, smart technology, transport ecosystems, and infrastructure,” Marathon Group Australia CEO Brett Singh said.
Marathon Group has been a leading force in Victoria’s Gippsland region’s energy sector for four decades. Its technology partner in hydrogen storage, generation, and transport solutions is Siemens, and the group is focused on accelerating Australia’s journey to net zero by 2050.
Supported by industry-leading collaboration partners, Mr Singh said this groundbreaking alliance sets new standards in energy efficiency and sustainability, “driving a transformative leap toward a more interconnected and environmentally advanced future”.
He said this pioneering alliance aimed to revolutionize the industry by developing zero-emission airports and integrating cutting-edge hydrogen technologies, positioning Australia at the forefront of sustainable aviation.
Marathon Groups sees the partnership with Sirius Aviation AG as a catalyst for enhancing hydrogen storage, developing zero-emission airports, establishing sustainable infrastructure, and integrating renewable energy initiatives – all aligning with Australia’s ambitious clean energy goals.
Leveraging the revolutionary Sirius Jet, a hydrogen-powered electric fan VTOL aircraft developed with Designworks, a BMW Group Company, the collaboration aims to redefine aviation.
“Partnering with Marathon Group is a major leap in transforming aviation with hydrogen technologies,” Sirius Aviation AG CEO, Alexey Popov said. “Our efforts will set new benchmarks in sustainability and significantly reduce carbon emissions.” 
Sirius Aviation AG is an unusual company in that it has been founded and is still being directed by active aviators with decades of experience in aircraft operation, design, and manufacturing across many countries, working for some of the biggest aviation companies in Europe and the US.
Alexey Popov, as mentioned in an Aviation Week magazine profile, is a member of the aviation group family that leads FED, the Ukrainian aerospace components, systems and maintenance firm that can trace its history back almost 100 years.
According to Aviation Week, Alexey Popov — like his father and brother who remain senior executives at FED – he “graduated from the National Aerospace University’s Kharkiv Aviation Institute, alma mater to the lion’s share of Ukraine’s degree-educated aerospace engineers”.
“As a pilot, Mr Popov has flown single-handed across the Atlantic—a six-day jaunt that was effectively the ferry flight for a Cirrus SR22 G2 he bought in Portland in 2020. After nearly 20 years in various roles within FED, he established Sirius Aviation in 2021.
“The Swiss-based company, funded by FED, is developing a liquid-hydrogen-powered electric vertical-take-off-and-landing (eVTOL) business jet in collaboration with partners including German auto giant BMW’s Designworks studio, Formula 1 team Sauber, and Leonardo Aerostructures,” according to the Aviation Week report.
Key highlights of the Sirius-Marathon partnership 
Hydrogen storage and refueling: Joint development of hydrogen storage and refueling systems, including mobile hydrogen transportable liquidation and refueling units, to meet diverse infrastructure needs.
Zero-emission airports: Establishment of zero-emission airports by harnessing combined expertise in innovative technologies and infrastructure, supported by global partners.
Sirius Jet integration: Deployment of the Sirius Jet for various applications, including cargo transport and air ambulance services, offering low noise, zero emissions, and commercial benefits.
Training and development: Launch of comprehensive training programs to build expertise in hydrogen technologies and foster aviation innovation.
Renewable energy synergy: Regional integration of hydrogen production with solar and wind energy projects to support renewable energy objectives.
More information from Aviation Week – https://aviationweek.com/business-aviation/aircraft-propulsion/sounding-board-five-minutes-sirius-aviation-founder-ceo
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