Prof. Roald and her group focusses on facilitating the transition to a more sustainable and resilient energy system, while ensuring that electricity can be provided in an economically efficient and secure manner. To tackle challenges faced by participants in the energy industry, from system operators to power producers and consumers, we are developing mathematical tools and software implementations to model and optimize system operation and energy markets, while taking into account the impact of uncertain events such as variations renewable energy production, component failures and large-scale outages.