Energy self-sufficiency through hybridization of biogas and photovoltaic solar energy: an application for an Iberian pig slaughterhouse

In the specific case of this Iberian pig slaughterhouse the results show that the most profitable option involves the installation of an anaerobic digestion plant with an electrical power of 79 kWe and a solar photovoltaic installation of 225 kWe. The total cost of both systems is 737,000 € and the project presents a Payback period (PBP) of 9 years, an Internal Rate of Return (IRR) of 9% and a Net Present Value (NPV) of 0.70 millions €.