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Forum Index : Solar : Give me an amp

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piercy007

Newbie

Joined: 27/06/2008
Location: United Kingdom
Posts: 28
Posted: 06:14pm 03 Oct 2008
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Evening

If you connect a number of solar panels togther in series you can increase the voltage i.e 3 @ 3 volts = 9v.

Does the same increase apply to the amps?

Also if you did a mix and match do you get an average of the total or the collective?
My middle name is luck mind you my first is bad!
 
AMUN-RA

Senior Member

Joined: 10/03/2007
Location: Australia
Posts: 144
Posted: 09:02pm 03 Oct 2008
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series volts increase amps stay the same
parralel voltage the same amps increase
what are you trying to achieve just buy a larger panel
Every day the sun shines
& gravity sucks= free energy.
 
Tinker

Guru

Joined: 07/11/2007
Location: Australia
Posts: 1904
Posted: 02:44pm 04 Oct 2008
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  piercy007 said   Evening

If you connect a number of solar panels togther in series you can increase the voltage i.e 3 @ 3 volts = 9v.

Does the same increase apply to the amps?

Also if you did a mix and match do you get an average of the total or the collective?


If you look closely at a commercial solar panel you will see it has a number of individual cells connected in series to get a suitable terminal voltage.
On the bigger panels you might spot two series strings of cells connected in parallel, you get twice the current of a single series string of cells. You also get a better shade tolerance as if one cell in one string is shaded the other string will still put out power.

You should be able to get your answer from this and what was said in the message above.
Klaus
 
piercy007

Newbie

Joined: 27/06/2008
Location: United Kingdom
Posts: 28
Posted: 11:37am 06 Oct 2008
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  AMUN-RA said   series volts increase amps stay the same
parralel voltage the same amps increase
what are you trying to achieve just buy a larger panel


Thanks for that - needed a quick sanity check.

The bid panels are still far to expensive so been building my own by buying smaller (affordable) panels and connectign them togther. As you can imagine the Wattage is low with the crap amps. What I intended to do was add some high ampage panels to the mix to bump it up but needed to know (which I do Know!) which way to connect them

cheers all - all I need know is some sun!
My middle name is luck mind you my first is bad!
 
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