Zambia has the largest man-made lake in the world, reports the Associated Press — but a severe drought has left the lake’s 128-meter-high (420-feet) dam wall “almost completely exposed”. This leaves Kariba dam without enough water to run most of its hydroelectric turbines — meaning millions of people in Zambia now face “a climate-induced energy crisis…”
The water level is so low that only one of the six turbines on Zambia’s side of the dam is able to operate, cutting generation to less than 10% of normal output. Zambia relies on the dam for more than 80% of its national electricity supply, and the result is Zambians have barely a few hours of power a day at the best of times. Often, areas are going without electricity for days… The power crisis is a bigger blow to the economy and the battle against poverty than the lockdowns during the COVID-19 pandemic, said Zambia Association of Manufacturers president Ashu Sagar.
Africa contributes the least to global warming but is the most vulnerable continent to extreme weather events and climate change as poor countries can’t meet the high financials costs of adapting. This year’s drought in southern Africa is the worst in decades and has parched crops and left millions hungry, causing Zambia and others to already declare national disasters and ask for aid…
Zambia is not alone in that hydroelectric power makes up over 80% of the energy mix in Mozambique, Malawi, Uganda, Ethiopia and Congo, even as experts warn it will become more unreliable. “Extreme weather patterns, including prolonged droughts, make it clear that overreliance on hydro is no longer sustainable,” said Carlos Lopes, a professor at the Mandela School of Public Governance at the University of Cape Town in South Africa.
While the lake’s water level normally rises six meters after it rains, “It moved by less than 30 centimeters after the last rainy season barely materialized, authorities said…
“Experts say there’s also no guarantee those rains will come and it’s dangerous to rely on a changing climate given Zambia has had drought-induced power problems before, and the trend is they are getting worse.”
