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Forum Index : Windmills : how to set up a wind turbine

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michaelw
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Joined: 17/03/2010
Location: Australia
Posts: 1

Posted: 01:27am 17 Mar 2010

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hi guys just starting out in renewable energy have aquired a 500w wind turbine without a charge controller what is the most cost efficent charge controller that i can hook to a hot water element and is it worth worrying about the load diverter to hot water thanks michael it is a 24v wind scorpion from america and i was going to use a 600watt submersible water element also have a southwestern 400w that has its own controller iside the body but is easy to turn offEdited by michaelw 2010-03-18

Downwind

Guru

Joined: 09/09/2009
Location: Australia
Posts: 2333

Posted: 03:13am 17 Mar 2010

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What voltage is the 500w rated at and what heating element are you intending on using for your water heater.

You will need to consider what you will do with the power generated once the water is hot and the thermostat switches the heater off.

You will need to send the power to a secondary (dump) load to keep the mill under control.

If you can post a few more details of the mill and water heater etc then better help and answers can be given.

Pete.

Sometimes it just works

KarlJ

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Joined: 19/05/2008
Location: Australia
Posts: 1178

Posted: 07:47am 17 Mar 2010

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at 500W from the mill, it just cant possibly heat a 300L tank fast enough for there to be a problem, just keep adding power in, hotter it gets faster it looses the heat.

a 500W turbine will be luck to put 1KW in a day at a normal site and 2.5kw at a great site.

If all else fails the PTR valve will stop the HWS from exploding, dump hot water replaced with cold water, which takes heaps of energy to raise up again.

CAPS are the go in series, load match it and it will work.
as for cap sizes I have no idea!

My tip, come up with something better to do with the power and use an evacuated tube solar collector to heat the water instead, they chuck in 6KW++ /day in summer and 1-2KW/day winter only a problem if no one is home!

Luck favours the well prepared

KarlJ

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Joined: 19/05/2008
Location: Australia
Posts: 1178

Posted: 07:49am 17 Mar 2010

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cheap controller is the one someone else built a week or two ago, search the posts or build Gizmo's from the site, equally good and cheap enough to look after a few batts.

Luck favours the well prepared

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