Zero emission solutions for commercial aviation leader ZeroAvia has made a big leap forward in plans to deliver hydrogen-electric engines for regional jets, thanks to an expanded agreement with MHI RJ Aviation Group. As part of the collaboration, MHIRJ will provide engineering services, aircraft integration, and its industry renowned OEM experience to support the certification of ZeroAvia’s hydrogen-electric powertrain for retrofit onto airframes in the regional jet markets.ZeroAvia is already well advanced in plans to certify its ZA600, 600kW powertrain for smaller, 10-20 seat aircraft, with entry into service planned for 2024. Concurrently, the company is working on ZA2000, a 2-5MW modular powertrain which targets support for 40-80 seat turboprops by 2026. The ZA2000RJ powertrain will expand this technology to enable passengers to fly in zero-emission regional jets as early as the late 2020s.This agreement places the CRJ Series aircraft as a frontrunner for the earliest operations using true zero-emission engines. Over 2,000 CRJ Series aircraft have been built since the launch of the program, effectively establishing itself as the backbone of regional aviation in the United States.This expanded agreement follows a Memorandum of Understanding signed by the parties at the end of last year.