Coordinated Operation of Water- and Renewable-Based Energy Systems

Abstract

This chapter presents an energy management policy aimed at increasing theintegration of renewable energy into existing power and energy systems operations,ultimately moving towards carbon-neutral energy systems. The policy is based onthe coordinated dispatch of multi-energy systems, exploiting the flexibility providedby energy storage assets. This complementary operation modifies the traditional roleof large reservoir hydropower plants, allowing them to compensate for renewable en-ergy variability and uncertainty during the balancing stage. Within this framework,the proposal deals with alternative schemes to enhance the allocation of renewableenergy reserves. These policy-based reserves play a crucial role in ensuring powersystems stability and providing frequency support. To address the operational chal-lenges and constraints posed by non-convexities and nonlinearities in the optimalpower flow, a second-order cone programming problem is employed. The policy isembedded in a receding horizon control strategy. The effectiveness of this policy isevaluated in a renewable-dominated virtual power plant located in Argentina. Theresults demonstrate the significant benefits of adopting this approach, particularlyin facilitating a gradual transition towards conic and stochastic electricity marketparadigms.