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Green Renewable Energy Forum
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Managing and using your generated power - a whacky idea?
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<blockquote data-quote="ProDave" data-source="post: 256266" data-attributes="member: 6969"><p>A1) My solar PV is 1.9KVA peak. The object is to use as much as possible of the generated power rather than let it be exported. the "background" usage, i.e everything on standby, fridge, freezer etc is about 400W, so I rarely have much more than 1KVA going "spare" even in full sunshine. So switching on a 3KVA load, would mean I was importing (i.e paying for) 2KVA of that.</p><p></p><p>So by using a low power load, I can use more of my free, self generated power, without importing and paying for any.</p><p></p><p>A2) read the thread on the other forum about the basic design I am now using. As well as taking a reading from the current transformer, it also samples the voltage from a transformer. By looking at the phase of the voltage, it can determine if the current is in phase (exporting power) or out of phase (importing power). your normal electricity meter must do something similar to ensure it does not meter exported power.</p></blockquote><p></p>
[QUOTE="ProDave, post: 256266, member: 6969"] A1) My solar PV is 1.9KVA peak. The object is to use as much as possible of the generated power rather than let it be exported. the "background" usage, i.e everything on standby, fridge, freezer etc is about 400W, so I rarely have much more than 1KVA going "spare" even in full sunshine. So switching on a 3KVA load, would mean I was importing (i.e paying for) 2KVA of that. So by using a low power load, I can use more of my free, self generated power, without importing and paying for any. A2) read the thread on the other forum about the basic design I am now using. As well as taking a reading from the current transformer, it also samples the voltage from a transformer. By looking at the phase of the voltage, it can determine if the current is in phase (exporting power) or out of phase (importing power). your normal electricity meter must do something similar to ensure it does not meter exported power. [/QUOTE]
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Managing and using your generated power - a whacky idea?
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