Optimizing electricity costs of wastewater treatment plant in presence of RES and power market

The main goal of the wastewater treatment plant management consists in reducing the annual electricity costs by trying to supply the load demand using renewable energy sources (RES) (such as photovoltaic panels and biogas-based cogeneration engine). Based on real case measurements and carried on design process of the stochastic sources and cogeneration engine for covering the load demand, an optimization model is implemented to minimize the annual electricity costs. The model is tested on a characteristic day of each year season, under various load profile and intermittent sources production.