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Do-It-Yourself (DIY) Question & Answer Forum
100A fuse upgrade: meter to consumer unit?
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<blockquote data-quote="ProDave" data-source="post: 500556" data-attributes="member: 6969"><p>So that's 7kWh of battery storage.</p><p></p><p>Say I had that much spare from my PV otherwise going to waste and I could use that in the evening, that would offset £1 of electricity usage each day. So that would take 3192 days or 8.74 years to cover the equipment cost.</p><p></p><p>Of course it would take at least double that in real life because there won't always be that much spare PV. So 17 years. How good do you think the batteries would be by then?</p><p></p><p>If you can "buy" the power in for £0 at the right time and use it to offset in the peak period on the agile tariff when it might be 30p or more then it just might begin to make sense.</p><p></p><p>Can you program it when to charge and when to discharge based on time of day to match the agile tariff?</p></blockquote><p></p>
[QUOTE="ProDave, post: 500556, member: 6969"] So that's 7kWh of battery storage. Say I had that much spare from my PV otherwise going to waste and I could use that in the evening, that would offset £1 of electricity usage each day. So that would take 3192 days or 8.74 years to cover the equipment cost. Of course it would take at least double that in real life because there won't always be that much spare PV. So 17 years. How good do you think the batteries would be by then? If you can "buy" the power in for £0 at the right time and use it to offset in the peak period on the agile tariff when it might be 30p or more then it just might begin to make sense. Can you program it when to charge and when to discharge based on time of day to match the agile tariff? [/QUOTE]
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100A fuse upgrade: meter to consumer unit?
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