GreenGT signs prestigious contract with 49 SUD to develop and supply fuel cell systems for ClimateImpulse aircraft. Raphaël Dinelli and Bertrand Piccard, the eco-explorers at the controls of the Climate Impulse aircraft, are planning a non-stop, emission-free circumnavigation of the globe in 2028. The mission of the Swiss engineering company will be to produce the Fuel Cell systems capable of meeting this exciting challenge.