Aggreko has signed a seven-year contract with Brazilian energy company EVA Energia for a 10 MW renewable power solution using landfill gas. It will deliver a complete system, producing power from biogas derived from two locations: Seropédica (Rio de Janeiro State), the largest landfill site in Latin America, and Mauá (São Paulo State).
The Aggreko solution should achieve a carbon saving of more than 100 000 tons over contract life. The volume of methane emissions avoided totals 24 440 400 Nm3 annually.
The biogas is recovered via a series of wells drilled into the landfill. A pipe system connects the wells, collects the gas and transports it to a compression system, where it is filtered, de-watered and pressurised.
Aggreko will deploy a turnkey solution, consisting of eight 1.25 MW generators across the two sites. The gas generators will employ the latest technology to enable the effective use of landfill gas and reduce emissions at both sites, surpassing regulatory standards significantly. The systems will be managed by Aggreko’s Remote Monitoring software.
The Seropédica landfill is the largest in Latin America, with a capacity of up to 10 000 tons of waste per day. The Seropédica and Mauá landfill sites together have the potential to produce 73 million cubic metres of biogas each year.
Commenting on the news, Pablo Varela, managing director, Aggreko Latin America, said: “At Aggreko, we have optimised our generators so they can run efficiently on future fuels like biogas, providing a cost effective and less carbon intensive alternative.” The project is the latest in a series of successful ventures in the region for Aggreko, which recently announced plans for a 26 MW solar hybrid solution at Salares Norte mine in Chile, as well as a number of hybrid and storage solutions for customers in Argentina and Brazil.