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One or two solis inverters?
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<blockquote data-quote="bladerunnerpv" data-source="post: 551664" data-attributes="member: 35385"><p>OK little bit of free time again at last...</p><p></p><p>Just posting an example schematic for a 2x inverter E-W setup, using a solix 4.6kw for east and one for west roofs (4.6kW is picked somewhat arbitrarily as I had the details to hand) the startup is 120V</p><p></p><p>for the worst case string of 4 panels West-facing :</p><p> open circuit voltage at -10deg is 171V</p><p> MPPT voltage 126V at +40deg and 142V at -10deg</p><p></p><p>This would work in principle? Am I missing something about the way the PV inverters are connected into the consumer unit that they don't need to know about one another? I can see they should be able to communicate if both were hybrids with battery, but not for just PV inverters?</p><p></p><p>In case it helps...</p><p>Predicted Shading: (from easypv not a site survey) </p><p>6 panels West shading 0.92</p><p>4 panels West shading 0.82</p><p>upper 5 panels East shading 0.93</p><p>lower 5 panels East shading 0.91</p><p></p><p>Performance prediction</p><p>Import 1084 </p><p>Export 3082 </p><p>Generation 6227 </p><p>Self consumption 2929</p><p></p><p>Thanks if anyone has time to take a look</p></blockquote><p></p>
[QUOTE="bladerunnerpv, post: 551664, member: 35385"] OK little bit of free time again at last... Just posting an example schematic for a 2x inverter E-W setup, using a solix 4.6kw for east and one for west roofs (4.6kW is picked somewhat arbitrarily as I had the details to hand) the startup is 120V for the worst case string of 4 panels West-facing : open circuit voltage at -10deg is 171V MPPT voltage 126V at +40deg and 142V at -10deg This would work in principle? Am I missing something about the way the PV inverters are connected into the consumer unit that they don't need to know about one another? I can see they should be able to communicate if both were hybrids with battery, but not for just PV inverters? In case it helps... Predicted Shading: (from easypv not a site survey) 6 panels West shading 0.92 4 panels West shading 0.82 upper 5 panels East shading 0.93 lower 5 panels East shading 0.91 Performance prediction Import 1084 Export 3082 Generation 6227 Self consumption 2929 Thanks if anyone has time to take a look [/QUOTE]
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One or two solis inverters?
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