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Directory:Hydro

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Methods of harnessing water potential and moving water (hydrokinetic) for usable energy.

Contents

Major Hydro Listings at PESWiki

Technologies

Vortex

  • Zotloterer Gravitational Vortex Power Plant - Mini-power plant is simple to construct, has a turbine efficiency of 80% but is safe for fish due to low turbine speed. The gravitational vortex hydro technology can be applied with water drop as little as 0.7 meters. The cost for installation of the prototype was close to $1/watt capacity.

Dams

Dam Impact

Don't waste the dam methane - Scientists in Brazil have claimed that a major source of greenhouse gas emissions could be curbed by capturing and burning methane given off by large hydro-electric dams. The technology will extract the methane from the water to supplement the energy produced by the dam turbines. (BBC; UK; May 10, 2007)

Low Impact Hydro

See also

Misc. Low Impact Hydro

  • Harvesting Rain Power Via Piezoelectric Landing Pads - Scientists from CEA/Leti-Minatec in France have developed a system that recovers the vibration energy from raindrops falling on a piezoelectric structure. The system works with raindrops ranging in diameter from 1 to 5 mm. Simulations show that it's possible to recover up to 12 milliwatts from one of the larger "downpour" drops.

Pumped Storage

High Impact Hydro

  • Massive Explosion at Russian Hydroelectric Dam - An oil-filled transformer exploded at the Sayano-Shushenskaya power plant in Siberia, destroying three turbines and bringing down the ceiling of the turbine hall, which then violently flooded. The dam itself did not sustain any damage. 76 possible deaths. The dam produces a quarter of the total energy of RusHydro and also feeds the world's largest aluminum smelter. The damages will take years to repair." (Slashdot; Augl 18, 2009)
  • 50 gigawatts of electrical power could be released by damming the Red Sea - Damming the Red Sea could solve the growing energy demands of millions of people in the Middle East and alleviate some of the region's tensions pertaining to oil supplies through hydroelectric power. Equally, such a massive engineering project may cause untold ecological harm and displace countless people from their homes. (PhysOrg; Dec. 6, 2007)
  • Hydropower Doesn't Count as Clean Energy - According to recently published estimates from Ivan Lima and some of his colleagues at Brazil's National Institute for Space Research, the world's 52,000 largest dams release 104 million metric tons of methane annually. (AlterNet; Oct. 5, 2007)
  • Salmon Survival, Cleaner Hydropower Focus of ORNL Research - A new advanced turbine being tested at Wanapum Dam in Washington state produces nearly 5 percent more power, but before more are installed researchers at Oak Ridge National Laboratory are getting input from several thousand fish. (NewsWise; April 28, 2005)
  • Queen of England Goes Green - A $1.7 million, four-turbine, energy-efficient plant to be built on the River Thames will generate 200 kilowatts -- about 1/3 of the energy required to power the queen's Windsor residence. (PhysOrg; July 25, 2005)

As a Component in a Non-Nature System

Capillary Action

  • Featured: Hydro >
    Are Capillary Action Engines Possible? - For a few hundred years, many people have attempted to devise a way to come out ahead with capillary action. Yes, a dry cloth can lift water and essentially do work - but the energy it then takes to get the water out of the capillary tight spaces is considered by physics to be more than you can ever get from the absorption stage. (PESWiki; Nov. 9, 2009) (Comment)

Resources

In the News

See News:Hydro - separate page

Directories

  • EnergyOcean 2008 - The 5th Annual EnergyOcean conference co-located with SubSea Survey 2008, June 24-28, 2008 in Galveston, Texas, will be focusing on renewable and sustainable energy from the oceans.

See also

HYDRO FOOTER

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