Uses For Micro-Hydro Turbines/Generators in Hydroponics?

dragonfly_wings(Z8 - Central TX.)May 24, 2009

Thought this might interest the 'engineering minds' of

many who frequent this forum.

Looks like we'll soon be generating some of our domestic/commercial electricity via tiny hydro turbines embedded in pipes. How might this be applied to hydroponics?

Three examples:


SA Water is now recovering energy from the River Murray, thanks to innovative hydro electric technology at SA Waters Hope Valley Terminal Storage tank site in AdelaideƂs north east.

A joint venture between SA Water and Hydro Tasmania has resulted in the development of a mini-hydro plant capable of producing electricity from the flow of water in large water mains.

The Hope Valley mini-hydro turbine came on-line in 2003 and is powered by water as it flows through the pipes from the Anstey Hill storage tanks in the Adelaide Hills into the Hope Valley Terminal Storage tank.

The mini-hydro diverts the water to flow from pressure dissipater valves through a turbine located within a powerhouse where water jets drive the turbine buckets causing the "runner" to spin. This kinetic energy is transformed into electricity - supplied into the grid via a high voltage connection.

The mini-hydro plant is designed to produce up to 7000 megawatt hours per year or enough electricity to power 1000 homes. This will reduce carbon emissions by more than 8000 tonnes - equivalent to taking about 1900 cars off the road.

SA Water is continuing to explore mini-hydro opportunities for the future.


The micro-hydro news just keeps getting weirder: Bridgeport, Connecticut's water company is launching a project to "transform excess pressure in water pipes into electricity by using a new microturbine technology."


Jin Woo Han's Faucet Mini Hydro Generator

The device would capture the "free" energy of your tap to spin a little generator. It can be attached to the end of your faucet or between two pipes.


Hydropower from Old Washing Machines

EcoInnovation still reminds you a little bit of Road Warrior. Founder and chief engineer Michael Lawley has built his "renewable energy store" on the ingenious redeployment of everyday household appliances.

Among other things, the company recycles SmartDrive motors from salvaged washing machines to generate hydropower. Of course, you need to be near a river or stream.

Yes, micro-hydro turbines that can tap into the movement of medium flowing streams and turn a turbine that can deliver most of the electrical requirements of a small home.

Lawley says the company has been able to recycle the motors from salvaged domestic washing machines - aka Whirlpool. The company claims its already made 1,000 successful installations of its micro-hydro device as well as wind and solar power systems.

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freemangreens(Zone 10 CA)

Interesting read; not quite sure where it fits in with hydroponics though.

As far as the quote: "The device would capture the "free" energy of your tap to spin a little generator. It can be attached to the end of your faucet or between two pipes." there's nothing "free" about spinning a generator with the garden hose. The water pressure is there in the first place because an electric pump either elevated the water to a storage tank or pumped it against a dead-head of air before it hit the delivery system that brought it to your tap.

This kind of 'circular' thinking is just incorrect. It is along the lines of a fan pushing a sailboat that is dragging a paddle wheel coupled to a generator thinking each will keep the other one going. It won't happen!

The only truly "free" energy of this sort is obtained by using water captured (rain or snow) at a higher elevation and using its kinetic energy as it moves by gravity to a lower elevation.

    Bookmark   May 25, 2009 at 1:06PM
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the small hydro turbine is free of cost and high efficiency. you can visit for reference

    Bookmark   September 20, 2012 at 3:05AM
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The second law of thermodynamics deals with free doesn't happen. If you think it does, you don't understand physics.

This thread is beginning to look like

    Bookmark   September 21, 2012 at 9:06AM
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