Off Grid Solar System, opinions and advice welcomed

[Hedges]

"water pumps 120wh"

That sounds like a small booster pump, but no well pump.

 

[JamesHird]

"water pumps 120wh"

That sounds like a small booster pump, but no well pump.

Yeah no well pump at the moment. We are fortunate enough to have good neigbours who allow us to use ther well for the time being. We have an ICB tote on a flatbed trailer for transporting the water from there well head

The 120wh estimate is for pumping the water into the holding tank in our 5th wheel from an ICB tote and the 12v pumps in the 5th wheel that supply the faucets and shower

All he irrigation will be gravity fed rainwater

 

[sunshine_eggo]

Nice, thank you.

so 3890/365 =10.65kwh per day on average

True, but summer/winter daily averages will be closer to 8.5 and summer closer to 11.5.

That seems good for our energy consumption needs.

If we were to do a 6s2p array. half facing SE half SW do you have any advice on how far off south we should have the panels facing? like SE and SW or SSE and SSW?

With the assumptions I made on the array so far (location and tilt), and picking some good days in June and Dec, the difference in yield at earlier/later hours really doesn't warrant splitting the array unless you go to extremes (east and west facing only), and those extremes really impact the total power production.

Best results will be had by a single optimal array. You'll just need to be diligent exploiting your peak solar in the middle of the day.

 

[JamesHird]

True, but summer/winter daily averages will be closer to 8.5 and summer closer to 11.5.

Yeah, this suits us quite well.

 

[MrM1]

@JamesHird have you considered the mpp LV6548? Seems to b all the rage here on the forum and I like what I've seen of it. A little more but seems to offer a lot more. UL 1741 And is stackable / expandable up to 6 units.

Also u might want to consider Watts247. Very responsive and helpful.

LV6548 6.5KW – 120v Solar inverter 8kW -2 x 4kW 250V MPPT UL1741 compliant – built in Wifi – Special – Watts247 Wholesale

watts247.com