Today’s energy sector is dominated by fossil-fuels. Our society requires the transformation from greenhouse gas emission dominated energy towards clean and sustainable energy. This is one of today’s greatest global challenges. Our research area in sustainable energy covers technology within geothermal energy; both enhanced geothermal systems and conventional, hydrothermal systems and geological storage of CO2. In addition we support monitoring of large hydropower structures like large water reservoirs/dams. Methodologies that we developed towards microseismic monitoring of geological CO2 storage, dams and geothermal facilities can also be applied towards monitoring of mines and nuclear waste storage facilities.