British beverage giant, Diageo, is investing £180 million in renewables across its African sites in a move to make its breweries as carbon and water efficient as possible.

The company’s largest environmental investment in a decade will touch eleven of its African brewing sites delivering new solar energy, biomass power and water recovery initiatives.

It will also bring new infrastructure designed to improve the long-term sustainability of Diageo’s African supply chain in seven countries, the company said.

“We have a responsibility as a local manufacturer and employer in Africa to grow our business sustainably–creating shared value-and this significant investment continues our work to provide sustainable solutions for our local supply chains,” said CEO Ivan Menezes.

It will cover 11 sites in seven countries including Kenya, Uganda, Tanzania, South Africa, Seychelles, Nigeria and Ghana.

In Kenya, Diageo’s brand-new brewery Kisumu has already had solar power and water treatment facilities installed to ensure its operations have minimal impact from their start.

The company added that Tusker will be the “most environmentally sustainable brewery in Sub-Saharan Africa”.