JMcIntosh Posted April 4, 2016 Share Posted April 4, 2016 The latest guidelines from SolarEdge indicate that string sizes may be up to 15,000 w. PVsyst V 6.43 does not allow oversizing. What parameters do I change to increase the allowable wattage on a SolarEdge optimizer string?Thanks in advance Link to comment Share on other sites More sharing options...
André Mermoud Posted April 5, 2016 Share Posted April 5, 2016 Solaredge has not shared theid latest Guidelines with us. However I don't understand well which limitation you are speaking about. Please give a screenshot of window in error, and the exact error message. Link to comment Share on other sites More sharing options...
JMcIntosh Posted April 5, 2016 Author Share Posted April 5, 2016 The latest design guidelines from SolarEdge on the newest 3-phase inverters can be found here: http://marketing.solaredge.com/acton/ct/8801/s-0783-1603/Bct/q-0047/l-0045:e06/ct1_0/1?sid=s3KKU5ipp Link to comment Share on other sites More sharing options...
JMcIntosh Posted April 5, 2016 Author Share Posted April 5, 2016 Here is a screen snip showing the 20 optimizer limit. The newest guidelines would allow 25 optimzers per string 15,000 / 300 / 2 = 25. The data sheet indicates a max of 30 optimizers per string. It can be found here. http://www.solaredge.us/files/pdfs/products/power-optimizers/se-P5-series-commercial-add-on-power-optimizer-datasheet-na.pdf Link to comment Share on other sites More sharing options...
André Mermoud Posted April 10, 2016 Share Posted April 10, 2016 We have to get instructions from SolarEdge for modifying the installing conditions (which have been established in close collaboration with the manufacturer). We are in touch with them. Link to comment Share on other sites More sharing options...
SE2015 Posted May 27, 2016 Share Posted May 27, 2016 A current workaround to this limitation is to design shorter strings, just for the PVsyst simulation (in practice you will install with the over-sized strings). This will have no effect on the simulation.So for example: you want to design an SE27.6K inverter with 3 strings of 22 power optimizers (each optimizer connecting to 2 modules in series, so the result is 66 power optimizers = 132 modules). PVsyst perhaps limits the string length to 18 optimizers, so you could instead specify 6 strings of 11 power optimizers, giving you the same result (66 power optimizers/132 modules).Any mathematical combination will work, as long as you get the number of modules you want.See the attached image. Link to comment Share on other sites More sharing options...
aaronrodg Posted December 2, 2016 Share Posted December 2, 2016 The latest design guidelines from SolarEdge on the newest 3-phase inverters can be found here: http://marketing.solaredge.com/acton/ct/8801/s-0783-1603/Bct/q-0047/l-0045:e06/ct1_0/1?sid=s3KKU5ipp Great work! Link to comment Share on other sites More sharing options...
SolarJ Posted December 7, 2016 Share Posted December 7, 2016 Has there been any movement on extending the power optimizer definitions inside the software? I can not go beyond 19 with a 72 mono when design guidelines define the use of 20. Link to comment Share on other sites More sharing options...
aaronrodg Posted January 4, 2017 Share Posted January 4, 2017 Did you find any? Link to comment Share on other sites More sharing options...
aaronrodg Posted February 7, 2017 Share Posted February 7, 2017 Yes give some idea on it i am also waiting.... Link to comment Share on other sites More sharing options...
aaronrodg Posted February 7, 2017 Share Posted February 7, 2017 Agree with you mhamon. Link to comment Share on other sites More sharing options...
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