The Best Ways to Use Hydro Power
Wave Power (1/8)
A model wave energy generator floating on the waters near Limfjorden, Denmark. A full-scale version of this prototype will be placed in the North Sea. It uses wave power to create electricity. Earlier experiments with wave power, however, faced problems in rough seas. Global wave and tidal power has an estimated energy potential of 2,000 Gigawatts. (Photo: Reuters)
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Wave Power (1/8)
A model wave energy generator floating on the waters near Limfjorden, Denmark. A full-scale version of this prototype will be placed in the North Sea. It uses wave power to create electricity. Earlier experiments with wave power, however, faced problems in rough seas. Global wave and tidal power has an estimated energy potential of 2,000 Gigawatts. (Photo: Reuters)
The Best Ways to Use Hydro Power
Reducing CO2 (2/8)
Water gushes out of a floodgate at the hydroelectric dam Cachi in Ujarras de Cartago, Costa Rica. Costa Rica is drawing up plans to cut its net greenhouse gas emissions to zero before 2030. The country aims to offset all of its carbon dioxide emissions. (Photo: Reuters)
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Reducing CO2 (2/8)
Water gushes out of a floodgate at the hydroelectric dam Cachi in Ujarras de Cartago, Costa Rica. Costa Rica is drawing up plans to cut its net greenhouse gas emissions to zero before 2030. The country aims to offset all of its carbon dioxide emissions. (Photo: Reuters)
The Best Ways to Use Hydro Power
Big Hydropower (3/8)
Engineers and workers look at the stator of the first generator for the Three Gorges Dam power plant on the Yangtze River in China's Hubei province. The dam is the world's largest hydropower project, and will be completed in 2009 producing a maximum capacity of 18 Gigawatts. (Photo: Reuters)
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Big Hydropower (3/8)
Engineers and workers look at the stator of the first generator for the Three Gorges Dam power plant on the Yangtze River in China's Hubei province. The dam is the world's largest hydropower project, and will be completed in 2009 producing a maximum capacity of 18 Gigawatts. (Photo: Reuters)
The Best Ways to Use Hydro Power
Big Impact (4/8)
A paramilitary policeman stands guard at the Three Gorges Dam on the Yangtze River, China. The giant dam raised fears that China could become more vulnerable to terrorist attacks. With millions displaced, officials also fear protests from affected locals and environmentalists against the destruction of river banks and forests. (Photo: Reuters)
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Big Impact (4/8)
A paramilitary policeman stands guard at the Three Gorges Dam on the Yangtze River, China. The giant dam raised fears that China could become more vulnerable to terrorist attacks. With millions displaced, officials also fear protests from affected locals and environmentalists against the destruction of river banks and forests. (Photo: Reuters)
The Best Ways to Use Hydro Power
Protests (5/8)
In 2001, villagers from Maheshwar, India demonstrated in Bombay against a 400 Megawatt hydropower project that would submerge their valley. The project had been planned since 1978, but protests convinced foreign investors, like the German power utility Bayernwerk, to withdraw from the project. Work at the site resumed later only to be stopped again in 2006.(Photo: Reuters)
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Protests (5/8)
In 2001, villagers from Maheshwar, India demonstrated in Bombay against a 400 Megawatt hydropower project that would submerge their valley. The project had been planned since 1978, but protests convinced foreign investors, like the German power utility Bayernwerk, to withdraw from the project. Work at the site resumed later only to be stopped again in 2006.(Photo: Reuters)
The Best Ways to Use Hydro Power
Energy Crisis (6/8)
Albanian people shout anti-government slogans while holding empty water bottles during a protest against power cuts that had hit the country in 2002.
Albania, one of Europe's poorest nations, goes through an energy crisis every time water levels in the northern hydropower schemes fall due to a lack of rainfall. Almost 98 percent of Albania's energy production comes from hydropower. (Photo: Reuters)
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Energy Crisis (6/8)
Albanian people shout anti-government slogans while holding empty water bottles during a protest against power cuts that had hit the country in 2002.
Albania, one of Europe's poorest nations, goes through an energy crisis every time water levels in the northern hydropower schemes fall due to a lack of rainfall. Almost 98 percent of Albania's energy production comes from hydropower. (Photo: Reuters)
The Best Ways to Use Hydro Power
Pumped Storage Reservoir (7/8)
This graphic shows the schematic outline of Raccoon Mountain Pumped Storage Plant in southeastern Tennessee, United States.
Pumped storage reservoirs work just like vast storage batteries. During periods of low demand and low electricity prices, water is pumped from a lower reservoir to the upper reservoir. When demand and prices are high, water is released to drive generators in the underground power plant. (Graphic: Tennessee Valley Authority, www.tva.gov/power/pumpstorart.htm)
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Pumped Storage Reservoir (7/8)
This graphic shows the schematic outline of Raccoon Mountain Pumped Storage Plant in southeastern Tennessee, United States.
Pumped storage reservoirs work just like vast storage batteries. During periods of low demand and low electricity prices, water is pumped from a lower reservoir to the upper reservoir. When demand and prices are high, water is released to drive generators in the underground power plant. (Graphic: Tennessee Valley Authority, www.tva.gov/power/pumpstorart.htm)
The Best Ways to Use Hydro Power
Tidal Power (8/8)
La Rance tidal power plant uses the difference between low and high tide in an estuary on France's Atlantic coast. Special two-way turbines produce a maximum of 240 Megawatts, about 4 percent of all energy consumed in Brittany.
The plant, run by the French utility EDF, is the biggest in the world. In most coastal areas, however, tidal power is not strong enough to efficiently produce energy. (Photo: EDF Médiathèque)
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Tidal Power (8/8)
La Rance tidal power plant uses the difference between low and high tide in an estuary on France's Atlantic coast. Special two-way turbines produce a maximum of 240 Megawatts, about 4 percent of all energy consumed in Brittany.
The plant, run by the French utility EDF, is the biggest in the world. In most coastal areas, however, tidal power is not strong enough to efficiently produce energy. (Photo: EDF Médiathèque)
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