Hi All.
Maybe someone can explain a question that comes from my setup:
I have an AC70 connected to an Elite 100v2 in turn conected to the house mains.
As the AC70 says in the app, it is consuming say 360w, the Elite 100 says it is powering 410w to it.
Only the AC70 is powering my pcs and nothing else is being consumed from the elite 100.
Why is there a discrepancy?
Also, I have a 4x 100w solar panels conected to the Elite 100. As the app is saying they are powering 320w, and the system is consuming 360w, the battery slowly fils 1 or 2 %.
Can the consuption value of the Elite 100 be wrong?
This has been covered in many threads on the Forum. Power in does not equal power out.
Battery inverted power from your AC70 is reflected on its display. If you put a power meter between the AC70 and the Elite 100, this will show the actual power being delivered to the Elite100’s AC charger/pass through. The 50W discrepency is efficiency factors and internal electronics load plus line losses.
The same occurs with solar charging. If you put a DC power meter between the Elite 100 and the panels, the wattage it shows will be different to the E100 display.
There is no such thing as a 100% efficient machine, mechanical or electrical, hence the value disparity.
I have both the AC70 & E100, but I use 2 AC180s, one feeding the other on the house transfer switch. If I pull a 200W load on a power meter between the transfer switch and the AC180 it connects to, that AC180 shows a higher display wattage. The AC180 that is connected to its AC input shows an even higher wattage than the one it feeds. I’m more interested in the battery SOC of both. If both start at 100% SOC and the load is lower than the charge rate setting, the first inline is powering the house and passing through the second inline. When the first nears zero SOC, it’s time to swap it out for another, let the second briefly power during change over and go from there. (what I do). It’s not perfect, but it works. The key thing is to charge at a higher rate than loads, plus 10-15% to cater for losses and efficency.
It also depends on type of load; I have a fridge which draws 90W when cycling from stable 240VAC grid power. From the E100 it shows a load of 150-160W, a 60-70% increase. As against my lounge 55" TV which draws 100W from grid and only 108-112W from the Elite. That is around a 10% increase. Resistive, inductive, converted (a charger) loads all react differently from an inverter.
Bottom line - you don’t appear to have a problem in my opinion.