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Sizing an inverter.
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<blockquote data-quote="rich1" data-source="post: 550861" data-attributes="member: 35020"><p>Are there any benefits of going for, say an 8kw inverter over a 5kw, with a solar PV and battery system?</p><p></p><p>I assume a 5kw would pull additional power from the grid if demand exceeds 5kw, rather than just switching 100% to grid supply?</p><p></p><p>I'd also assume that an 8kw inverter will be less stressed running at 4kw than a 5kw?</p><p></p><p>Our usage is, like most peoples, usually well under 5kw, but there are obviously combinations of applicances that can push the demand towards 8kw for short periods.</p><p></p><p>Is having a big enough inverter to cover these periods worth the extra cost?</p><p></p><p>If managing peak load to keep it below the inverter max is important, is there a system of 'smart' power sockets which will load shed to try and keep peak load down to some set limit?</p></blockquote><p></p>
[QUOTE="rich1, post: 550861, member: 35020"] Are there any benefits of going for, say an 8kw inverter over a 5kw, with a solar PV and battery system? I assume a 5kw would pull additional power from the grid if demand exceeds 5kw, rather than just switching 100% to grid supply? I'd also assume that an 8kw inverter will be less stressed running at 4kw than a 5kw? Our usage is, like most peoples, usually well under 5kw, but there are obviously combinations of applicances that can push the demand towards 8kw for short periods. Is having a big enough inverter to cover these periods worth the extra cost? If managing peak load to keep it below the inverter max is important, is there a system of 'smart' power sockets which will load shed to try and keep peak load down to some set limit? [/QUOTE]
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