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<blockquote data-quote="Electron Farmer" data-source="post: 418436" data-attributes="member: 27711"><p>Thanks Binky. I need to better explain my intended layout. I thought I could use the SB island to create a sine wave from a battery bank that would allow the GTI inverter to engage. I thought the purpose of the SB Island was to create an island of AC between the SB island (which controls the DC side ) and the GTI but as it's an island AC is only flowing between these two devices. The SB Island is connected to the grid only to allow the battery bank to charge in the absence of sufficient light. I hoped that when the SB Island was powered it would provide the sine wave to engage the GTI. I do not intend to export anything to the grid but I can receive if needed to charge my batteries.</p><p></p><p>If go down the route of purely DC off grid I'm losing the advantages of high string voltages and maximum efficiency gained by AC MPPT's. I need to provide a drawing but I'm on my mobile at present. Thanks for the info so far we're getting there.</p></blockquote><p></p>
[QUOTE="Electron Farmer, post: 418436, member: 27711"] Thanks Binky. I need to better explain my intended layout. I thought I could use the SB island to create a sine wave from a battery bank that would allow the GTI inverter to engage. I thought the purpose of the SB Island was to create an island of AC between the SB island (which controls the DC side ) and the GTI but as it's an island AC is only flowing between these two devices. The SB Island is connected to the grid only to allow the battery bank to charge in the absence of sufficient light. I hoped that when the SB Island was powered it would provide the sine wave to engage the GTI. I do not intend to export anything to the grid but I can receive if needed to charge my batteries. If go down the route of purely DC off grid I'm losing the advantages of high string voltages and maximum efficiency gained by AC MPPT's. I need to provide a drawing but I'm on my mobile at present. Thanks for the info so far we're getting there. [/QUOTE]
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