Hybrid power system for distributed energy deploying biogas from municipal solid waste and photovoltaic solar energy in Mendoza, Argentina

The emission of greenhouse gases (GHG) generated from landfill biogas causes critical environmental and social issues. However, efficiently capturing and using biogas can reduce its environmental impact. In the metropolitan area of Mendoza, around 1,300 tons of municipal solid waste (MSW) are generated daily, and 65% of it goes to the El Borbollón landfill. The aim of this study was to present the results of implementing the first hybrid system for electricity generation from biogas and solar energy in a landfill. This alternative solution allows responsible management of MSW and diversifies the regional energy matrix. The production of biogas, its collection, conduction, treatment, conditioning for combustion, and electrical engineering aspects are analyzed within the technological complex operating under a grid-connected generation system. The results of the study show that with an average annual generation of 6,387 MWh/year and a reduction of GHG emissions between 44.1% and 70.5%, the use of MSW biogas in small cities can also be carried out as a climate change mitigation strategy in the framework of distributed generation.