Schematic check
Hi All! Can anyone see any problems with this system design? Its for the UK and needs to maximise solar export at all times (12p/kWh) and charge batteries for 5 hours overnight (4.5p/kWh). The attached existing FIT system needs to produce as much as possible and pass this through to export. Max load on UPS is 33A. Any comments welcome!
Thanks!
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David it is important to factor in a) losses due to charging and then discharging- typically 13% and then b) the deprecation cost of the battery due to the charge / discharge cycling your scheme will induce. You won't make the full 7.5p /kWh profit that you think.
Steve did some research about this, it may be worth a look at this thread https://www.sunsynk.org/forum/techical-support/effect-of-discharge-rate-and-dod-on-battery-life