On the Data sheet I took a picture of and attached it says "Continuous AC Power to load 9KW (OFF GRID)"
to me this rules out pulling 8KW from Inverter and 1KW from Grid, as its "OFF GRID"
ALSO
"CONTINUOUS AC POWER WITH GRID OR GENERATOR" 15,120W@240V /7560@120V
This implies being able to charge batteries and run loads simultaneously via Generator pass-thru, does anyone know if this is correct/can actually be done in the real world.
I remember that around September/October of 2020 Sol-Ark came out with their new version/model 12K-P, which is what I have. They specifically changed the spec sheet from 9KW on Grid/8KW Off-Grid to 9KW on Grid/9KW Off Grid on the new model.
This assertion affirmatively communicates that they changed something/added something or updated the Software to increase the Inverter's Off-Grid Output from the prior model, yet if I understand what is being said on this thread its Output is still the same as the Deye/previous model of the Sol-Ark 12K??
My concern is that perhaps the only change that was made to the new model was an update in the software in order to get the User Screen to indicate it was actually putting out more power to the Load by either including Conversion Losses and/or including the Draw of the Inverter itself or possibly even just artificially indicating a Higher Output than was actually occurring in reality.
With respect to this issue the first response to my post is correct in that the real way to figure out what the "True Output" is to simultaneously use a multi-meter on every load and cross-reference that with the # showing on the User Screen. I plan to try and do this, but with my Sol-Ark now only powering the Critical Loads it could be quite difficult for me to get it to reach that high of an Output level without having intermittent surge draws/Loads from the Well-Pump etc.... as well as I would probably also need another person on site helping to turn things on and/or using the multi-meter so I can sit there staring at the Screen because once it trips the screen goes dark etc.... there may be another way to do this by myself, but not sure yet and there is still the problem of the well-pump clicking on and off.
I took a short video yesterday of the User Scrren while running 8KW+ with the Loads on L1 and L2 relatively Balanced. The video shows the total Amps of both Legs being about 63.5 - 64.2 . I waited until there was plenty of Sun so as not requiring any supplemental power from the Batteries and turned the Discharge rate from the Batteries down to close to zero. Because the Spec sheet also lists " Battery Output Power as 8KW" in contrast to the 9KW listed for "Off-Grid Continuous AC Power to Loads"
I found a combination of Loads to turn on to get up to a steady/stable 8.1KW Load without using the well pump and recorded a video. It ran the 8.1KW load for about 39 seconds and then tripped off!
Potentially Relevant Observations:
1. When multiplying the Amps shown x Volts shown
A. L1 29.7A x 120V = 3,564W while the Output was showing 3,811W
B. L2 34.5A x 120V = 4,140W while the Output was showing 4,345W
TOTALS. 7,704W OUTPUT SHOWING 8,156W
Of course the #'s were fluctuating slightly, but this was the most stable combination of critical loads I could find so far. Basically an approximate 450Watt difference throughout the test.
Also L1 did seem to indicate at least one of its Loads had a small amount of "Lagging" most likely from an inductive Load as it fluctuated slightly with Watts going down as Amps went up, at least for part of the time during the test.
2. During this time the Fans of the Sol-Ark kicked on, (which happens throughout the day sometimes even when Loads are small) yet the #'s reported on the User Screen did not seem to go up when they kicked on. Later I also found that the #'s on the User Screen did not seem to go down when the fans shut off either.
I don't know if the attached video is going to upload successfully or not.
3. The fact that the Sol-Ark powered the 8.1KW+ Loads for approximately 40 seconds seems to indicate that the 5 second or 10 second surge capabilities, whichever it is, never came into play.