The tightening of international regulations in terms of climate-altering emissions is leading the energy production sector toward decarbonization and fuel flexibility for gas turbine technologies. Hydrogen, as a zero-carbon emission energy carrier, can play a primary role in the decarbonization process as it could also be exploited to store the excess of electricity produced by renewable energy sources whose availability and production rate are intrinsically fluctuating. Despite the advantageous properties, hydrogen combustion is challenging and its implementation in gas turbine applications is not straightforward. A premixed approach reduces the NOx formation due to lower combustion temperatures, but a significant risk of flashback is induced by the enhanced flame speed.