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New Guy to alternative energy | 10 comments (10 topical, editorial)
Re: New Guy to alternative energy (3.00 / 0) (#4)
by etownlax on Fri Oct 26th, 2007 at 03:03:46 PM MST
(User Info)

quick question about that... If you have a wind turbine producing a good amount of power, say its making 16v at say 60 amps. But you have a battery Capable of taking all the power in, wouldn't the dump controller still kick in since you have a 16v supply(1.6v more than 14.4v)? Then you would have a lot of wasted energy going to the dump load rather than the batteries. OR does the battery pull the voltage down to Its own voltage no matter the voltage(reasonable atleast) coming in? Then only when the battery was full it would be "14.4v" for the dump load to take action. Thanks, -Randy

[ Parent ]


Re: New Guy to alternative energy (3.00 / 0) (#5)
by Glenn D on Fri Oct 26th, 2007 at 06:55:29 PM MST
(User Info)

You know Randy, thats exactly the kind of info that I'm looking for? Can I pump a ridiculous amount of power into a battery and have it charge up in seconds, or trickle a very very low amount of power into the battery and have it take days to charge? I have an idea for a contraption that I believe would put out 1 volt one second and maybe 12 or more the next at low amperage. I guess either way it would take quite a bit of time to charge a battery with this small amount of power. I still have tons to learn!


[ Parent ]


Re: New Guy to alternative energy (3.00 / 0) (#6)
by CmeBREW (smke833f@hotmail.com) on Sat Oct 27th, 2007 at 10:06:17 AM MST
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Hello etownlax,
      YOu just got to keep on patiently studying. I'm going on 3 years and I am Still mostly a beginner!.
About your question:
Here is what DanB said on his "Tips on making generators and alternators" page:

        "Voltage Regulation--With battery-charging windmills, voltage control is not generally needed--until the batteries fill up. Even if your alternator is producing an open-circuit voltage of 90 volts, the battery bank will hold the system voltage down to its own level. Once the betteries are full, you'll need to send the windmill's output to a 'dump load' such as a heating element."

So after the genny reaches the battery voltage (cut-in/ batt begins to accept power),
then the 'extra' volts are 'traded' for more AMPS automatically. You will not waste any power. The amps start going upward after cut-in and the voltage stays the same.
And yes you can 'trickle' charge a battery. Got to be careful not to over-charge and ruin the battery though.

Also, since you're both new, be careful not to "hi-jack" someone else's posting by completely changing the initial posters subject or by starting to make your own discussion back and forth with someone. From what I can see, you might get away with asking ONE small extra question before you get the wrath of the editor on ya!.
We all have to watch that since its so easy to do!   -Keep on the study--its a fun hobby.

[ Parent ]



Re: New Guy to alternative energy (3.00 / 0) (#7)
by etownlax on Sat Oct 27th, 2007 at 10:26:18 AM MST
(User Info)

Ok thank you CmeBREW,

I'm starting to understand what all it takes to create a good system. All the information here is great and I'll keep reading.

"hi-jacking threads"- You are right on that one, it is pretty easy to do. I'll try my best to not do that.lol

Best of luck to Glenn D aswell.

Thank you,
-Randy

[ Parent ]



New Guy to alternative energy | 10 comments (10 topical, 0 editorial)

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