Hitman / Race Solutions Dyno / Open Day! 25th Sept
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By Dose Pipe Sutututu · Posted
If go with OVO or similar, you can buy electricity off peak periods of the day for next to nothing, i.e. when the sun is out and everyone is exporting and noone is consuming. I'm also planning to join a VPP and sell back during peak hours. Bro science stacks up, and also the battery inverter has a spare MPPT port, so I could add another solar array. I still have the roof space for at least another 7 panels. -
I might need to invest in at least another battery, maybe...as the battery going in is a 19.2kWh, which is larger than I initially thought when I replied, the panels are 10.56kW -
It appeared like someone was well triggered. Seems the way they mention finances, and business the way they do, that there's some major financial insecurities, or just insecurities in general and someone feels they need to try and put people down. -
Should have just bought an EV and plugged it in...
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My 3.8 kW system (when new, not so much nearly 20 yrs later) will do 21 kWh per day (best few months of the year), and that's with an afternoon shading issue. So it really could/should be able to do maybe 24. So a 6.6 kW system probably cannot fill a 40ish kWh battery from scratch, but then it is very unlikely to ever need to. Let's presume that you use 10-15 kWh during the day and stash the rest. So long as the battery isn't drawn down below ~50%, it'll be fine. And that draw down presumes using 20 kWh overnight, which is a reasonably heavy draw. So that seems reasonable. The 40kWh will be good for extended outages, and very bad days where you get almost no generation for a day or two. Might struggle to top it all the way back up after it gets pulled all the way down though. I'd think you'd probably want about 10 kW of panels to make life a little easier, wrt keeping a 40 kWh battery charged. But then....does it really need to be at 100% every day? Probably not.
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