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Yeah, 15 panels barely made it within the voltage at -1°C for 600V open-circuit voltage (Voc): 37.07 Voltage Uoc (temp coef) of 0.28/°C Standard test condition of 25°C expected lowest temperature of -1°C (so 26°C change) so 26*0.28/100 * 37.07= 2.70 V change so each panel would have 39.77V 15...

do you know what would be considered as bypass? only power pulled from the grid to help power loads? or does power generated from a pv array stored into the battery in a dc coupled system would also be considered as bypass?

The EG4 18K PV has the following spec for PV Input AC Input Data MAX. AC INPUT POWER - 12000W PV INPUT DATA NUMBER OF MPPTS - 3 INPUTS PER MPPT - 2 (MPPT 1) | 1 (MPPT 2) | 1 (MPPT 3) MAX. USABLE INPUT CURRENT - 25A (MPPT 1) | 15A (MPPT 2) | 15A (MPPT 3) MAX. SHORT CIRCUIT INPUT CURRENT - 31A...

Tigo TS4-A-F - 700W(rapid shutdown only) is $30 - connect to 2 panels, so $15/panel added cost Tigo TS4-A-O - 700W(rapid shutdown + optimize + monitor) is $43.53 - connect to 2 panels, so $21.77/panel added cost The extra cost of $6.77/panel for optimization/monitor is worth it to me since...

I am planning to get 400W panels, and use Tigo DC optimizers to comply with Rapid shutdown device (RSD) requirement and monitor the system. the panels are Axitec 400W Solar Panel 108 Cell Bifacial Short circuit current Isc: 13.79A Open circuit voltag Uoc: 37.07 V RSD are required at each...

They added battery because the system is in California, where net metering value went down by 75% for new systems, and Time of use rate is ridiculously high. But yeah, time to go down the diy route, seems super feasible based on what i found so far

So a hybrid pv system always have 2 inverters where 1 of them would act as the grid so the other inverter thinks it is always connected to the grid?

I got a quote from contractor , $65k for a 16.94kw pv system with 20kWh battery. They messed up the inverter in the quote since the include inverter is rated for 7kw input while my system is 16.95kw) Assuming they are going to SolarEdge SE10000H-US when I ask them for correction. Panels: 44...