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Adding battery to solar edge system
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<blockquote data-quote="johnb2713" data-source="post: 545826" data-attributes="member: 35153"><p>All batteries are DC. It's the method of connecting the battery that youre getting confused with. Connecting the battery into your existing inverter would be a DC (Direct Current) connection. It has advantages of being more efficient, would be easier to control by your existing inverter etc. An AC coupled battery has it's own inverter and simply sits on your AC supply. The disadvantage of this approach is that theres some loss of efficiency (energy is lost in the conversion process AC to DC and DC back to AC though not a great deal with modern inverters. The advantages are you're adding more inverter power into your system so it will import less from the grid with heavy loads, it can be located anywhere that it has a connection to your supply eg outbuilding, under stairs etc, you have some redundancy in your system if one item failed for any reason.</p><p></p><p></p><p>I had a conversation with my DNO, emailed details and it was all ok'd</p></blockquote><p></p>
[QUOTE="johnb2713, post: 545826, member: 35153"] All batteries are DC. It's the method of connecting the battery that youre getting confused with. Connecting the battery into your existing inverter would be a DC (Direct Current) connection. It has advantages of being more efficient, would be easier to control by your existing inverter etc. An AC coupled battery has it's own inverter and simply sits on your AC supply. The disadvantage of this approach is that theres some loss of efficiency (energy is lost in the conversion process AC to DC and DC back to AC though not a great deal with modern inverters. The advantages are you're adding more inverter power into your system so it will import less from the grid with heavy loads, it can be located anywhere that it has a connection to your supply eg outbuilding, under stairs etc, you have some redundancy in your system if one item failed for any reason. I had a conversation with my DNO, emailed details and it was all ok'd [/QUOTE]
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Adding battery to solar edge system
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