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Forum Index : Solar : SMA SunnyBoy OptiTrac

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Adrian@Brisbane
Newbie

Joined: 04/12/2010
Location: Australia
Posts: 3

Posted: 02:07am 06 Dec 2010

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Hi,

I have a SMA SunnyBoy 4000TL-20 with the new OptiTrac option. By default it was switched off. I have switched it on to see if this makes any difference in cloud cover. Thoughts? Can't hurt anyway.

Adrian

KarlJ

Guru

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

Posted: 08:40am 11 Dec 2010

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what is it supposed to do?

Luck favours the well prepared

Adrian@Brisbane
Newbie

Joined: 04/12/2010
Location: Australia
Posts: 3

Posted: 09:12am 11 Dec 2010

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Snipped this from the SMA OptiTrac PDF.

Equipped with SMA OptiTrac, the inverter reacts
much more precisely to changes in radiation levels,
so that the maximum energy available can be
constantly fed into the grid. Thus, SMA OptiTrac
significantly improves the dynamic behavior and
increases the energy yield on intermittently cloudy
days.

http://download.sma.de/smaprosa/dateien/3491/TECHOPTITRAC-AE N082412.pdf

Follow the above link for an interesting read.

Downwind

Guru

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

Posted: 11:05am 11 Dec 2010

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Now that sounds like a wonderful sales spin to me.

In short by changing the interval the system reads the input voltage and adjusts the output to suit increases power into the grid.

Whoopie, you would expect that normally, and one has to ask what is the down side of this function considering it is a user option.

Pete.

Sometimes it just works

KarlJ

Guru

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

Posted: 07:16am 12 Dec 2010

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Indeed I laughed, the MPPT tracker on the cheap (but great) CMS2000 is changing the voltage every second and is supposedly 99%+ efficient at doing it the MPPT tracking that is

I would hope SMA are doing it better but 99% is tough to beat

Luck favours the well prepared

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