This project will investigate energy recovery from domestic wastewater through polyhydroxyalkanoates (PHA). Following the principle of microbial resource management (MRM), we will research the processes and interactions within PHA-producing microbial communities and develop tools to steer community processes for a reliable PHA production. We will explore anaerobic digestion (AD) as a means of transforming PHA-rich waste into biogas as a fuel for electricity generation.