Biogas Plant

Energy from waste.

Biogas Plant

The disposal of food and biodegradable waste in landfill sites, and their subsequent closure, a common practice in the past, creates suitable conditions for anaerobic respiration, which gives rise to the production of landfill gases - biogas.

However, in certain conditions, this gas can be used as fuel for internal combustion engines linked to generators for electrical energy production, which is an excellent option for using a renewable source and reducing greenhouse gases.

After the former landfill sites in Ermesinde and Matosinhos have been recovered and subsequently reconverted into leisure spaces by the community, these spaces were also enhanced by using biogas as energy.

Ermesinde Landfill Plant

Since its opening in June 2008 until now, approximately 19,000 MWh of electrical energy have been produced, preventing the emission of around 12,600 tons of CO2 equivalent.
Annual production is around 1,700 MWh, which is equivalent to the electrical consumption of approximately 1,000 households.

Matosinhos Landfill Plant

Biogas generated at the former landfill site at Matosinhos presented a great opportunity for producing energy. Hence, since 2009, the biogas generated at the landfill site has been used to produce electrical energy which we export to the national power grid.

The landfill site shut down towards the end of 2019 because the minimum operating threshold limit was reached due to the degasification of the mass of waste deposited in the landfill site. However, during its operation, around 3,000 MWh of electrical energy was produced, preventing the emission of 2,000 tons of CO2 equivalent. This production is equivalent to the electrical consumption of a cluster of approximately 1,750 households.

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