Recent content by Cory V

I’m curious why you wouldn’t just use an AIO inverter? It will have your MPPT solar charge controller, utility charger, and inverter all in one and you can specify that it only uses utility to charge if solar is insufficient.

You can’t think of panels as a voltage source like you can a battery. Their voltage and current and therefor power output fluctuates based on the load on the panel, how much sunlight it is exposed to, how evenly that sun is applied across the array (or singular panel for microinverters), and...

Generally speaking AC coupling happens on the output side of a hybrid inverter, not one of the inputs. Have you tried to find the installation manual for the inverter you’re looking into? The capacity on most units for AC coupling closely matches the output capacity of the inverter due to the...

Now that a few people have gotten their hands on one, has anyone messed with the AC coupling ability of this unit? My current setup is 9.72kW with Enphase micro inverters which is tied to my main panel. I plan on installing a critical loads panel that will be tied to the output of this...

Yeah, standby consumption on all of the less expensive AIOs is rough, pretty much need to dedicate an extra panel or 2 just to that. There are units with better standby consumption but they are very cost prohibitive, ie Victron. Typically the recommendation is to spend the money on the extra...

Did I miss something or are you trying to go batteryless? AIOs start up on battery/AC power just fine. If you’re trying to get one to start up on ONLY solar then you will have an issue with the unit starting up unless you have a high enough voltage coming through the PV input, and this is due...

It’s most important to not go over Voc limits as the inverter isn’t controlling how much voltage panels push before the charge controller starts pulling power, and going over that limit can fry things. You are under that limit now, but do you need headroom for the cold? Voc starts to climb the...

STC Power Rating 75W PTC Power Rating 72.2W 1 STC Power per unit of area 104.2W/m2 (9.7W/ft2) Peak Efficiency 10.42% Power Tolerances -5%/+5% Number of Cells 116 Nominal Voltage not applicable Imp 1.1A Vmp 68.2V Isc 1.23A Voc 89.6V NOCT 45°C Temp. Coefficient of Isc 0.04%/K Temp. Coefficient of...

24 75W panels will only provide a maximum of 1800W of power in full direct unobstructed sun regardless of how you wire them up, which is actually roughly 1550W in the real world as panels almost never reach their rated maximum output. You need to compare this output to the load (the heaters)...

Electricity will always take the easiest path to complete the circuit. For utility power at a residence the transformer just before the service entrance is the source. In order for current to flow a circuit must be created either between either ends of the winding to the center tapped neutral or...

Electricity doesn’t take the easiest path to ground. It takes the easiest path back to the source to complete the circuit. Lightning takes the easiest path to ground (earth). Ground and neutral can only be bonded once, at the first disconnect at the service entrance, typically the main panel...