In the month of December we produced over 0.90 MWh (Megawatt hours) on the farm.
Winter has shown up to the area and we are seeing a drop in solar power production at this point. Pulling more power from the grid to make up for the lack of PV is just what we have to do right now. Though soon I hope to build out a second array and maybe by next winter I will have more than sufficient PV even during the winter. On array A we are producing so little I rarely charge the batteries, and I find myself charging them from the grid more and more to keep them at a good voltage. So it will be interesting to see how this all plays out when I have excess solar in the winter in the future if and when I build out the second array. Luckily we have generators if the power goes out and the batteries are too low. So should be in good shape regardless when we have power outages. But I do want to get array-a up to spec for next winter.
Array A production stats:
PV: 302.7 kWh
Load: 891.3 kWh
Grid Import: 814.6 kWh
Battery Charge: 244 kWh
Battery Discharge: 61.6 kWh
*combined stats are different from screenshot from single inverter.
Array A build:
System Size = 5.5 kWp DC
Panels = Sungoldpower Monocryalline 60 cell (12 Panels, 450 Watts each)
Mounting System = Brightmount EG4 screwed into 6x6 timbers
Wiring: 1x 8 AWG 19 strand PV direct bury wire pair
Inverters = 2x Sol-Ark 15k all-in-ones (240V)
Estimated First Year Production
7,408 kWh
Battery Backup = 48 3.2v EVE LF280 LiFePO4 280AH batteries
Battery Management system = Daly Smart BMS 16S 48V 500A
Battery Capacity = 45.696 kWh (840AH)
Propane Generator = Briggs and Stratton Power Protect 26kw
Array B production stats:
PV: 603.2 kWh
Load: 823.4 kWh
Grid Import: 358.6 kWh
Battery Charge: 316.8 kWh
Battery Discharge: 383.7 kWh
Array B build:
System Size = 9 kWp DC
Panels = Sungoldpower Monocryalline 60 cell (20 Panels, 450 Watts each)
Mounting System = Brightmount EG4 screwed into 6x6 timbers
Wiring: 2x 8 AWG 19 strand PV direct bury wire pair
Inverters = Sol-Ark 15k all-in-one (240V)
Estimated First Year Production
14,815 kWh
Battery Backup = 48 3.2v LiFePO4 290AH batteries (unknown brand)
Battery Management system = Daly Smart BMS 16S 48V 250A
Battery Capacity = 47.328 kWh (870AH)
Propane Generator = Briggs and Stratton Power Protect 22kw
@solominer/solos-solar-array-production-stats-november
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