Search Results for Tag: hydropower
Deforestation means less hydropower
The Amazon deforestation rate rocketed to 88 percent during the last year: From August 2012 to April 2013, 606 squaremiles of forest were cut down compared with 322 square miles within the previous year, claimed as a record low.
That’s the conclusion of researchers from the National Institute of Space Research, who frequently monitor forest coverage with help of satellite images. Until recently, they could announce a slowing of deforestation. But, now it seems that the fate of one of the world’s biodiversity hotspots has changed.
The report comes on the heels of another study: scientists recently drew a connection between deforestation and energy supply. They looked at the Xingu river region in Brazil and found that cutting trees also cuts rainfall, resulting in reduced hydropower generation. That could lead to the country’s biggest dam project, Belo Monte, delivering a third less energy.
The link between deforestation and energy supply is often ignored, according to the study. “Feasibility studies of hydropower plants typically ignore the effect of future deforestation or assume that deforestation will have a positive effect on river discharge,” it says.
Rainfall does not depend on regional forest cover in the Amazon region alone. Major tropical forested regions in Central Africa and Southeast Asia also play a major role. “This dependence could affect hydropower expansion plans of a large number of developing nations in these regions “, the study concludes.
DateMay 25, 2013
Dossier: Harnessing the energy of water
Hydroelectric power plants can generate vast amounts of electricity. The technology is emissions-free, reliable and safe. But large dams and hydropower facilities can sometimes create more problems than they can solve. Learn more in the latest GLOBAL IDEAS multimedia dossier http://bit.ly/GI_dossierHydro
DateAugust 2, 2011
Old wall, new energy – hydropower in Honduras
In the Honduran city of La Esperanza, an old dam has been refitted to produce green energy. Designed with climate protection in mind from the start, the facility was the first project worldwide that was allowed to sell carbon emission certificates after the 1997 Kyoto treaty. The re-build power supply has created 70 new jobs and it provides electricity to surrounding villages. 30,000 tons of CO2 are reduced annuall.
DateJuly 28, 2011
South Sudan’s Hope
After winning independence over the weekend, The Republic of South Sudan is the world’s newest country. Even though the nation is just starting out, it’s rich in natural resources and has huge potential to grow and prosper – especially when it comes to clean energy.
One of the World Bank’s chief technicians, Daniel Kammen, took a video of South Sudan’s Fula Rapids while he was on site recently. The force and power of the White Nile River’s rapids make them the perfect source for hydropower. Some experts believe the Fula Rapids alone could produce 60 megawatts of electricity – and that in a country that generates less than 200 megawatts total right now.
Because South Sudan is largely undeveloped, officials there have the chance to start from the very beginning with renewable energy generation and green-friendly development practices. But one big question remains: will renewable energy projects benefit the country’s poor, too? Or will its new-found natural wealth end up in the hands of the few?
DateJuly 12, 2011
Ethiopia’s Hydropower Plant
Ethiopia is building the biggest hydropower plant in Africa. It will be called the "Grand Millennium Dam" and it'll be constructed right on the Nile river, about 40 kilometers from the Sudanese border. Ethiopian Prime Minister Meles Zenawi has already laid down the cornerstone on the dam.
The Grand Millennium Dam, which will cost about $4.8 billion US dollars, is expected to generate 5,250 megawatts of energy and be completed in just four years. Just to give you a little perspective, Ethiopia's new hydropower plant will have the ability to generate twice as much energy as Hoover Dam in the U.S. Ethiopia has a lot of potential when it comes to hydropower, and officials there want to tap into that opportunity. Plus the plant will provide jobs and an economic boost to the country.
Is hydropower underutilized in your country? Tell us about the hydropower projects in your area!
DateApril 10, 2011