Anders Bekeken

This African Factory In Ethiopia Turns Trash Into Energy, Clean Water And Bricks

Geschreven op 7-1-2019 - Erik van Erne. Geplaatst in Iets anders Facebooktwitterredditpinterestlinkedintumblrmail

Africa is the world’s fastest-urbanizing continent. But while city life has helped lift millions out of poverty, the rapid transformation has created a new problem: mountains of urban waste.

Now an Ethiopian entrepreneur is tackling the crisis with Africa’s first waste-to-energy plant, which reduces noxious and dangerous landfill while powering urban homes.

Samuel Alemayehu, a Stanford engineer, former Silicon Valley entrepreneur and World Economic Forum Young Global Leader, says the plant will supply 30% of Addis Ababa’s household energy needs and incinerate roughly 80% of its rubbish. That’s 1,400 tons of waste every day. Alemayehu oversees the $120 million project as a co-founder of Cambridge Industries, which together with its Chinese JV partner CNEEC, has joined the Ethiopian government and a consortium of international companies to transform the city’s approach to waste.

“We turn one of Africa’s most challenging social problems, the management of waste, into a source of new wealth”, Cambridge Industries says.

Until now, Addis Ababa’s rubbish was dumped on a vast, ever-growing landfill site that covers an area the size of 36 football pitches. Leaking waste from the site has polluted nearby rivers, while the waste itself produces methane, a powerful greenhouse gas. The landfill is also very unstable. In 2017, a landslide killed 114 people. It became a national tragedy.

At the same time, Ethiopia’s power supply is failing to keep up with breakneck economic growth of more than 10% every year. The Reppie plant, which meets EU emissions standards, is designed to solve both problems.

The plant burns the capital’s rubbish at a temperature of up to 1,800 degrees Celsius and converts it into 185 million KW hours of electricity per annum. Reppie is part of Ethiopia’s broader plan to boost living standards while limiting its emissions, a strategy it refers to as building a “climate-resilient green economy”.

This includes a goal to invest $2 billion annually in expanding the country’s renewable energy generation through 2030, double the current annual spending of $1 billion. The planned financing will include private investment, climate funds and clean energy sales to neighbouring countries.

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