EnergyBlog
 
 

Energy question of the week: How much electrical power can be harnessed from tides?

22. February 2010, 08.02
Under the influence of the Moon's gravity, the water of Earth's oceans rises and falls twice a day. Powerful forces are at work all over the globe between every low and high tide – forces that can be harnessed to generate electrical power. Just how mature is the technology and what is the potential that tidal power stations could unleash?
Jan Oliver Löfken
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Jan Oliver Löfken
 
 

Energy question of the week: are large hydroelectric power stations genuinely good for the environment?

15. February 2010, 08.40
After decades of planning, Belo Monte - the third largest hydroelectric power station in the world, will now be constructed in the Amazonas region of northern Brazil. When the Brazilian Institute of Environment and Renewable Natural Resources, IBAMA, approved the plan in early February, it was met with vociferous criticism from environmental conservationists and spokespersons for indigenous groups. So just how green are gigantic hydroelectric power stations really?
Jan Oliver Löfken
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Jan Oliver Löfken