Hydroelectricity. Solar Power From Water Andrea Joy. What is Hydroelectricity?. Hydroelectricity is an electrical generation system that creates electrical current from the movement of water through turbines. A Little History.
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Solar Power From Water
Hydroelectricity is an electrical generation system that creates electrical current from the movement of water through turbines.
INPUT : P(kW) = 10 × Q × H
Potential energy = MgH
M = mass of water in kilograms
g = acceleration due to gravity (9.81 ms-2)
H = head (height)
Output Power : P(kW) = 9.81ηQH
η = Turbo-generator efficiency
Q = Flow rate
H = Head
Will deliver 30 GWh of electricity and increase capacity of Mollejon by about 55 GWh annually.
49.5 m high storage Dam
7 MW power house at toe of Dam
Located on Macal River 18 kilometers upstream from existing 25 MW Mollejon plant
Will flood 9.5 sq km including 1.5 sq. km of existing river (2,800 acres of rainforest that is a home to jaguars, ocelots, Tapirs and some of the last known Scarlet Macaws)
Cost estimated at US $30 million
Destruction of habitats for already endangered species such as the Jaguar and Scarlet Macaws
Absence of promised economic benefits to Belizean people (Fortis raises light bills 12% in May 2005 and another 13% in January 2006.)
Being built near a fault line, so it is a very unstable and dangerous site
Loss of cultural heritage ("A total of 298 structures have been identified in the project area. This is a very high density and is consistent with heavy settlement in other river valleys in Belize.” )
Methane emissions from rotting vegetation will contribute further to Global Warming.
"This is the prettiest river in the country," says Mick Fleming, who owns the Chaa Creek Lodge, an ecotourism resort set in the jungle 20 miles downstream from the dam site. "We\'re going to lose something incredibly valuable in return for an extremely small amount of power."
Plenty of people in Cayo agree with Fleming\'s assessment. The city council in the district capital, San Ignacio, opposes the dam, and the vice mayor testified against the project during an unsuccessful attempt to block construction brought before the Privy Council in London last year. T-shirts and banners bearing such slogans as "The Macal is Ours" are seen all over town. "We use the river for drinking and swimming and tourism and canoeing," explains San Ignacio hotel owner Maria Preston. "The river is everything for us.“
While the dam will substantially boost domestic electricity production, most of the power will be generated at times of day when it is more expensive than importing it from Mexico. A 2000 study by the California-based Conservation Strategy Fund estimated the project would be a net drag on the Belizean economy. The dam is also being built near an active fault line, and Fortis admitted that it mischaracterized the geological properties of the site.
"This a bad project all the way around," says Grainne Ryder, policy director of Probe International in Toronto, which has led a campaign against Chalillo in Canada. "Fortis may make a quick profit out of it, but Belizeans will be left with the real costs for generations."
For more info on the Challilo Project check out: www.stopfortis.org