At OPRA Turbines there is a strong focus on combustion technology. We believe that the fast-changing energy landscape, with new regulations and environmental considerations, needs innovative and flexible solutions. This has led to the trend of small-scale, decentralized power generation with a growing interest in utilizing fuels that are locally available, such as waste gas, associated gas, syngas, biogas, biodiesel, bioethanol and pyrolysis oil. Furthermore, Hydrogen will play an important role in the energy transition. Therefore, OPRA is investing in the development of combustion systems that can efficiently burn hydrogen. To develop innovative combustion technologies OPRA possesses a state-of-the-art combustion test rig. The experimental rig includes a gas mixing station that can mimic virtually any type of gaseous fuel while the key combustion parameters are measured. Together with advanced numerical methods, we have created an R&D environment that drives our innovation and will result in future low-emission and fuel-flexible combustion systems.