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Sunday, October 13th, 2024

    Time Event
    5:43p
    Zambia Faces a Climate-Induced Energy Crisis
    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."

    Read more of this story at Slashdot.

    11:27p
    Can the UK Increase Green Energy with 'Zonal Energy Pricing'?
    To avoid overloading local electric grids, Britain's most productive windfarm "is paid to turn off," reports the Guardian — and across the industry these so-called "constraint payments" amount to billions every year. "Government officials are hoping to correct the clear inefficiencies in the market by overhauling the market itself." Greg Jackson, the founder of Octopus Energy, told the Guardian: "It's grotesque that energy costs are rising again this winter, whilst we literally pay windfarms these extortionate prices not to generate. Locational pricing would instead mean that local people got cheap power when it's windy. Scotland would have the cheapest power in Europe, instead of among the most expensive, and every region would be cheaper than today. Companies would invest in infrastructure where we need it — not where they get the highest subsidies." The changes could catalyse an economic osmosis of high energy users — such as datacentres and factories — into areas of the country with low energy prices, creating new job opportunities beyond the south-east. It could also spur the development of new energy projects — particularly rooftop solar — across buildings in urban areas where energy demand is high. This rebalancing of the energy market could save the UK nearly £49bn in accumulated network costs by 2040, according to a study commissioned by the energy regulator from FTI Consulting. But others fear the changes could come at a deeper cost to Britain's climate goals — and bill payers too. The clean energy companies preparing to spend billions on building new wind and solar farms are concerned that a redrawing of the market boundaries could radically change the economics of new renewable energy projects — which would ultimately raise the costs, which would be passed on to consumers, or see the projects scrapped altogether... With stiff competition in the international markets for investment in clean energy, Renewable UK [the industry's trade group] fears that companies and their investors will simply choose to build new clean energy projects elsewhere. "The debate has driven deep rifts across the industry," the article concludes, "between modernisers who believe the new price signals would give rise to a new, rational market and those who fear the changes risk unravelling Britain's low-carbon agenda... "The government is expected to make a decision on how to proceed in the coming months, but the fierce debate between warring factions of the energy industry is likely to continue for far longer." Thanks to long-time Slashdot reader AmiMoJo for sharing the news.

    Read more of this story at Slashdot.

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