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. 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.