Agência para o Investimento e Comércio Externo de Portugal


Air Liquide and Sasol have signed new Power Purchase Agreements (PPA) with the global wind and solar company Mainstream Renewable Power, for the long-term supply of a capacity of 97.5 MW of renewable power to Sasol’s Secunda site, in South Africa, where Air Liquide operates the biggest oxygen production site in the world.

This is the third set of PPAs signed by Air Liquide and Sasol, after those announced in the first quarter of 2023 with Enel Green Power and TotalEnergies with its partner Mulilo. Together, these PPAs represent a total renewable power capacity of around 580 MW. For Air Liquide, these contracts will contribute to the targeted reduction by 30% to 40% of the CO2 emissions associated with oxygen production in Secunda by 2031.


Within the framework of these PPAs with Air Liquide and Sasol, Mainstream will create a local company with strong socio-economic development commitments which will build a solar farm located in the Free State province. This renewable energy production facility is scheduled to be operational in 2025.


Air Liquide acquired Sasol’s 16 oxygen production units in Secunda and has been operating them since June 2021, in the framework of a long-term supply contract with its partner. Including another Air Separation Unit (ASU) it already operated for Sasol, Air Liquide operates a total of 17 ASUs in Secunda, with a total capacity of 47,000 tonnes/day of oxygen. Air Liquide plans to reduce by 30% to 40% the CO2 emissions (Scope 2) arising from the 16 oxygen production units it acquired from Sasol through a multi-year investment and modernization plan and a steep increase of the site’s procurement of renewable energies.