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Switching sides - changing array generation panels (E/W orientation)
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<blockquote data-quote="the-chauffeur" data-source="post: 551386" data-attributes="member: 37642"><p>Yup - 2 MPPTs - one E; one W. And you're absolutely right - the string increase from 8 to 10 would bust the limit given that it's a straight 8:8 split as it stands. As you say, re-arranging the arrays to a different set of splits might make it possible (and that's a big <em>might</em>) but equally, it's going to be so complicated and the benefit is likely to be so minimal that the maths and the cost of the wiring, switches and so on mean it's not worth the aggravation. </p><p></p><p>We've thought about adding a smaller unit and splitting the existing arrays but right now that's not really worth doing either, at least from a cost/benefit standpoint. When the second set of panels were installed (we added to an existing array), our installer told us the inverter manufacturer was working on a unit that would synchronise multiple hybrids, so if that ever becomes a reality, that may ultimately end up being where we go. Again, we're very lucky in that we're in no hurry whatsoever. </p><p></p><p>Thanks so much - that's the big (and obvious now you've pointed it out) flaw in what on the face of it seemed to be just a simple switch situation. It's an excellent point and if I'm honest, it's not the first time I've made that mistake. It's something I keep missing, which is why I posted here . . . and fortunately you've stopped me before I try something <em>really</em> stupid!</p><p></p><p>Thanks again.</p></blockquote><p></p>
[QUOTE="the-chauffeur, post: 551386, member: 37642"] Yup - 2 MPPTs - one E; one W. And you're absolutely right - the string increase from 8 to 10 would bust the limit given that it's a straight 8:8 split as it stands. As you say, re-arranging the arrays to a different set of splits might make it possible (and that's a big [I]might[/I]) but equally, it's going to be so complicated and the benefit is likely to be so minimal that the maths and the cost of the wiring, switches and so on mean it's not worth the aggravation. We've thought about adding a smaller unit and splitting the existing arrays but right now that's not really worth doing either, at least from a cost/benefit standpoint. When the second set of panels were installed (we added to an existing array), our installer told us the inverter manufacturer was working on a unit that would synchronise multiple hybrids, so if that ever becomes a reality, that may ultimately end up being where we go. Again, we're very lucky in that we're in no hurry whatsoever. Thanks so much - that's the big (and obvious now you've pointed it out) flaw in what on the face of it seemed to be just a simple switch situation. It's an excellent point and if I'm honest, it's not the first time I've made that mistake. It's something I keep missing, which is why I posted here . . . and fortunately you've stopped me before I try something [I]really[/I] stupid! Thanks again. [/QUOTE]
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Switching sides - changing array generation panels (E/W orientation)
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