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Green Renewable Energy Forum
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To add more batteries to solar or not?
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<blockquote data-quote="Tomr182" data-source="post: 543580" data-attributes="member: 36066"><p>I’d be looking at what tariff you’re in. Sounds like 34p kWh during the night. Plenty out there for cheap night time power. </p><p>I’m on octopus cosy and it’s 19p kWh during 4-7am and 1-4pm, 34p the others except 4-7pm when it’s 55p ish. I partial charge the battery before 7am to hedge against good sun or bad sun. Then fill it by 4pm. If we don’t use the oven and just hob, our 6kwh battery can last until 4/5am depending on whether heating is on. </p><p>Personally, I’ve calculated it’s cheaper to export and buy than get additional battery as I’m selling it for 15p so net is only 4p kWh</p></blockquote><p></p>
[QUOTE="Tomr182, post: 543580, member: 36066"] I’d be looking at what tariff you’re in. Sounds like 34p kWh during the night. Plenty out there for cheap night time power. I’m on octopus cosy and it’s 19p kWh during 4-7am and 1-4pm, 34p the others except 4-7pm when it’s 55p ish. I partial charge the battery before 7am to hedge against good sun or bad sun. Then fill it by 4pm. If we don’t use the oven and just hob, our 6kwh battery can last until 4/5am depending on whether heating is on. Personally, I’ve calculated it’s cheaper to export and buy than get additional battery as I’m selling it for 15p so net is only 4p kWh [/QUOTE]
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To add more batteries to solar or not?
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