The focus of this presentation will be to highlight the technical challenges associated with using hydrogen and natural gas in power generating gas turbines while at the same time, maintaining ultra-low oxides of nitrogen (NOx) and carbon dioxide (CO) emissions, both EPA regulated pollutants. Highlighted will be the development and commercially operating high-hydrogen capable combustion system retrofit platforms offered by PSM. The product solution attributes, customer operational experiences and technology development roadmap allowing a variable fuel range from 100% natural gas to 100% hydrogen will be highlighted. This flexibility will allow the installed fleet of multi-OEM gas turbine power plants to participate in the clean energy transition.