These roadmaps address aircraft technology, energy infrastructure, operations, finance, and policy considerations leading to net zero.
By adopting a Long Term Aspirational Goal (LTAG) at ICAO’s 41st Assembly, governments and industry are aligned to reach the same net zero CO2 emissions goal by 2050. As policy initiatives lay the foundation for many needed innovations and actions, these roadmaps will be a critical reference point for policymakers.
“The roadmaps are the first detailed assessment of the key steps necessary to accelerate the transition to net zero by 2050. Together, they show a clear direction and will evolve as we dig deeper to set interim milestones on the way to net zero. I must emphasize that roadmaps are not just for airlines. Governments, suppliers, and financiers cannot be spectators in aviation’s decarbonization journey. They have skin in the game. The roadmaps are a call to action for all aviation’s stakeholders to deliver the tools needed to make this fundamental transformation of aviation a success with policies and products fit for a net-zero world,” said Willie Walsh, IATA’s Director General.
The roadmaps were not developed in isolation. A peer-to-peer review, complemented by a modeling tool provided by the Air Transportation Systems Laboratory at University College London (UCL), was conducted to calculate emission reductions for each technology.
Highlights of each roadmap include:
- Aircraft Technology: the development of more efficient aircraft and engines. The steps needed to enable aircraft powered by 100% sustainable aviation fuel (SAF), hydrogen, or batteries are particularly important. All development milestones are backed up by announced investment and demonstrator programs. Also included are new engines, aerodynamics, aircraft structures, and flight systems.
- Energy and New Fuels Infrastructure: the focus is on the fuels and new energy carrier infrastructure upstream from airports needed to facilitate the use of aircraft powered by SAF or hydrogen. Renewable energy plays a vital role in meeting the aviation sector’s energy demand, and the roadmap outlines milestones to enable the necessary infrastructure developments.
- Operations: the opportunities for reducing emissions and improving energy efficiency by improving how existing aircraft are operated. Automation, big data management, and the integration of new technologies are key enablers for optimizing air traffic management and enhancing the overall efficiency of the air transportation system.
- Policy: the need for globally aligned strategic policies to provide incentives and support for the aviation industry’s transition to a net-zero future. As with all other successful energy transitions, collaboration between governments and industry stakeholders is crucial in creating the necessary framework to achieve the decarbonization goals.
- Finance: how to finance the cumulative $5 trillion needed for aviation to achieve net zero by 2050. This includes technological advancements, infrastructure developments, and operational improvements.
The challenges to ramp up SAF production are a good illustration of the importance of these roadmaps. As a drop-in solution, SAF is expected to deliver about 62% of carbon mitigation needed to achieve net zero by 2050. But even though SAF is expected to be fully implementable with future aircraft fleets, it still has major inter-dependencies on policy, aircraft technology, energy infrastructure, financing, and operations for which these roadmaps are critical.
“The roadmaps show where all stakeholders should focus their efforts. There are two certainties. By 2050 we need to be at net zero carbon emissions. And the steps to get there that are outlined in these roadmaps will evolve as the industry’s expertise grows. The policy is particularly important early on as it largely sets the scene for private sector investors to move. With that, the private sector can decarbonize at scale and speed,” said Marie Owens Thomsen, SVP of Sustainability and Chief Economist at IATA.
“Without the right policy incentives and bold investments, many of the technologies and innovations simply won’t happen at scale. Everything is related, and that is why we have the five roadmaps to tie all the parallel elements together and give our stakeholders, including governments, a complete understanding of everything that needs to happen,” said Owens Thomsen.
“Time is of the essence, as highlighted by these roadmaps. Immediate action is required to commercialize scalable zero-carbon energy storage solutions along with the required infrastructure and to build a business case for their rapid delivery at Gigawatt scale,” said Prof. Andreas Schafer, Director of UCL’s Air Transport Systems Laboratory.
Read more: Aviation: Critical Steps Needed to Fly Net Zero by 2050
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