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Green Renewable Energy Forum
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Solar + Batteries = import from grid
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<blockquote data-quote="hiddenhippo" data-source="post: 535053" data-attributes="member: 35089"><p>I've spent a little while tweaking the inverter settings, and the findings might be beneficial for other Solis user who run into a similar problem.</p><p></p><p>In short, I enabled export to grid, limiting to 100w (there was no lower setting). Having done this I'm more likely to see a small amount of energy being pushed onto the grid, for example, about 9 watts. Importing from the grid (whilst having surplus energy production) is hardly seen anymore.</p><p></p><p></p><p>For some crude numbers.</p><p></p><p>Previously (with the old inverter settings) I'd be importing 28w throughout the day, so lets say that's 672w over 24 hours; over 31 days ~20kw @ 0.51p = ~£10; basically costing me £10 per month.</p><p></p><p>With the export setting enabled, I'm returning 9w throughout the day, so lets say that's 216w over 24 hours; over 31 days ~6.70kw @ 0.51 = ~£3.40; basically costing me £3.40 per month. In reality I'd be paid ~£1 for exporting this (15p kwh), however, I could be storing the energy, which has an equivalent import of £3.40 - £1.00 = £2.40</p><p></p><p>Ultimately, enabling the export, whilst still not allowing me to hit nett zero, results in better value for me.</p></blockquote><p></p>
[QUOTE="hiddenhippo, post: 535053, member: 35089"] I've spent a little while tweaking the inverter settings, and the findings might be beneficial for other Solis user who run into a similar problem. In short, I enabled export to grid, limiting to 100w (there was no lower setting). Having done this I'm more likely to see a small amount of energy being pushed onto the grid, for example, about 9 watts. Importing from the grid (whilst having surplus energy production) is hardly seen anymore. For some crude numbers. Previously (with the old inverter settings) I'd be importing 28w throughout the day, so lets say that's 672w over 24 hours; over 31 days ~20kw @ 0.51p = ~£10; basically costing me £10 per month. With the export setting enabled, I'm returning 9w throughout the day, so lets say that's 216w over 24 hours; over 31 days ~6.70kw @ 0.51 = ~£3.40; basically costing me £3.40 per month. In reality I'd be paid ~£1 for exporting this (15p kwh), however, I could be storing the energy, which has an equivalent import of £3.40 - £1.00 = £2.40 Ultimately, enabling the export, whilst still not allowing me to hit nett zero, results in better value for me. [/QUOTE]
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Solar + Batteries = import from grid
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