New 10kw NHX AIO From Watts247
- Thread starter Kornbread
- Start date
BarracudaBob
Harvesting free photons from clean fusion
I don't have that page on mine. Hummm
BarracudaBob
Harvesting free photons from clean fusion
Device board: Raspberry Pi 4 Model B Rev 1.4
Software version: 2024-01-23
It must be enabled somewhere else.
Running it under megarevo? Self consume.
BarracudaBob
Harvesting free photons from clean fusion
I don't have a use for it so not going to worry about it. Just curious that I didn't have the choice.
Odd. Before this last update, there was nothing on the power tab. Definitely not what you have. Running it under the configure>Inverter>Megarevo setting?
BarracudaBob
Harvesting free photons from clean fusion
I have EG4 3K
I have it running that way currently. About 120' away. 2 female jacks on the CT end. Two male RJ's on the inverter end. So far its been working well. No battery just offsetting main panel loads when the sun is shining.
In lead acid mode, still has the charge/discharge spasms:
First 7 hours are overnight run on battery for a burn in test, Next 8 hours are charge from grid (with one brief interruption), last 9 hours are battery at 100 % SoC and the unit discharging at about 2 amps followed by spiky charging from 7 to 20 amps. It switches about every few seconds and the chart above is every 5 minutes so it is random what is samples at any given time.
I feel like I need to stop this behavior. I could disable grid charging manually at 100% SoC, but I'm not sure if that will stop the discharge events, or they will simply continue to discharge with no charging going on.
Mike C.
First 7 hours are overnight run on battery for a burn in test, Next 8 hours are charge from grid (with one brief interruption), last 9 hours are battery at 100 % SoC and the unit discharging at about 2 amps followed by spiky charging from 7 to 20 amps. It switches about every few seconds and the chart above is every 5 minutes so it is random what is samples at any given time.
I feel like I need to stop this behavior. I could disable grid charging manually at 100% SoC, but I'm not sure if that will stop the discharge events, or they will simply continue to discharge with no charging going on.
Mike C.
Adam De Lay
Solar Wizard
So with the last 9 hours on the test you have it set to “battery priority”, time of use enabled and SOC set to 100%?
Configuration is:
Work Mode: Battery Priority
Advanced Mode: Disable
Backup Enable: checked
Sell Enable: unchecked
Grid Export Limit: 0 W
No TOU settings. There is no TOU function desired.
Mike C.
Yesterday, my battery current log:
Shows repeated discharges of about 2 amps with spiky charges of up to 20 amps.
My next tactic is going to be to disable grid charging entirely and see what happens. This should stop the charging, but the question is if it will stop the discharging. If it doesn't, then I have to ask why the inverter sucks on the battery with grid available which it should not do.
Maybe the root cause of this is the inverter sucking on the battery with grid available, which then triggers a recharge, and the cycle repeats.
Mike C.
Shows repeated discharges of about 2 amps with spiky charges of up to 20 amps.
My next tactic is going to be to disable grid charging entirely and see what happens. This should stop the charging, but the question is if it will stop the discharging. If it doesn't, then I have to ask why the inverter sucks on the battery with grid available which it should not do.
Maybe the root cause of this is the inverter sucking on the battery with grid available, which then triggers a recharge, and the cycle repeats.
Mike C.
Is t
my sunny island does this same thing when the battery is full and its on grid. its not something i ever worried about
m baaaaaaaaaaack.
shtf this holiday weekend.
Don't know how many tornadoes in our area, straight line wind, hail, and flooding. Have not been able to watch the local news. Trees and power lines are still laying around. Just got internet back after 3 days but many still without power. Some of the public water districts ran out of water creating what could have been a very dangerous situation.
Luckily, even though our solar system isn't fully installed, I was able to shut off the grid breaker, and backfeed the house enough to run vitals and the well pump. One nhx10k easily ran the 270' deep well pump. Not enough to run everything and the hot water heater, but we were able to take showers, very cold and very short showers, but we were clean after cleaning up mess after mess.
Topping things off, last week was vacation. It began with a chainsaw in my hands, and ended with a chainsaw in my hands. Tough vacation, but we came through unschathed and that is what is important.
shtf this holiday weekend.
Don't know how many tornadoes in our area, straight line wind, hail, and flooding. Have not been able to watch the local news. Trees and power lines are still laying around. Just got internet back after 3 days but many still without power. Some of the public water districts ran out of water creating what could have been a very dangerous situation.
Luckily, even though our solar system isn't fully installed, I was able to shut off the grid breaker, and backfeed the house enough to run vitals and the well pump. One nhx10k easily ran the 270' deep well pump. Not enough to run everything and the hot water heater, but we were able to take showers, very cold and very short showers, but we were clean after cleaning up mess after mess.
Topping things off, last week was vacation. It began with a chainsaw in my hands, and ended with a chainsaw in my hands. Tough vacation, but we came through unschathed and that is what is important.
Adam De Lay
Solar Wizard
Glad to hear y'all stayed safe!
Wow. Seems like a rough few days. Glad to hear it turned out ok.
What dangerous situation were the water districts creating?
They were out of water. No water to put out fires.
Locally, the NWS confirmed 100 mph downbursts, an EF2 here and an EF3 in the next town over.
More work on the new 12panel ground mount today. The other smaller 6panel ground mounts came through the storms with no issues. Hoping the 12panel will be just as resilient. Maybe my problem with over-building things finally worked in our favor.
Two more 500' rolls of 10gauge came in. Better price and different colors. $90 for 500' sure beats $160 the local Lowes and Menards wants.
More work on the new 12panel ground mount today. The other smaller 6panel ground mounts came through the storms with no issues. Hoping the 12panel will be just as resilient. Maybe my problem with over-building things finally worked in our favor.
Two more 500' rolls of 10gauge came in. Better price and different colors. $90 for 500' sure beats $160 the local Lowes and Menards wants.
A peculiarity with SolarAssistant when it cannot connect to the internet. It lost track of time, which caused connectivity issues with the router. Not good.
Don't see anything in the manual about ac coupling, although I could have overlooked it.
Don't see anything in the manual about ac coupling, although I could have overlooked it.
My (as yet not fully tested) understanding:
The N3H-X10-US (Amensolar) inverter does NOT contain an "over the PV line" transmitter that would operate a Tigo TS4-A-F RSD box. By comparison, I think the EG4 18KPV doe shave this. So the inverter has no built in RSD transmitter function.
The N3H-X10-US inverter does have a 12 volt output which tracks with RSD state. It provides 12 volts (measured on my unit as 12.10 volts) and is stated to provide enough power to power a Tigo RSS transmitter or the Tigo CCA transmitter. This is from Watts247 and confirmed by the "factory". This would also make the 12 volt output capable of handling a relay of moderate size so it can control many other things this way.
Some option for RSD:
A. Tigo RSS
Power the Tigo RSS transmitter from the inverter 12 volts. When the 12 volts is present, the RSS transmits the coupled signal on the PV negative wire to TS4-A-F or TS4-A-2F RSD devices under the panels. This method is the least amount of wiring and lowest cost.
B. Tigo CCA
Power the Tigo CCA interface box from the inverter 12 volts. When the 12 volts is present, the CCA will communicate with the TAP box up in the array which will then talk to the TS4-A-S (RSD, monitoring) or TS4-A-O (RSD, monitoring, optimizer). This method does require a separate cable be run to the roof between CCA and TAP boxes.
I've chosen the B plan with TS4-A-S units, since I don't need optimizers (no shadowing) and do want per panel monitoring. The A plan with just shutdown is about $360 cheaper for my 30 panel setup.
If it turns out the 12 volt output from the inverter is somehow inadequate, then a fix is to procure a 120 VAC to 12 VDC power supply and run it from the LOAD1 output of the inverter. In RSD, LOAD1 disappears, so the 12 volts will go away with it and thus cause RSD. I do not expect that to be necessary. How this gets wired is a bit tricky since you can't just tap the LOAD1 output without a fuse or breaker to the DC power supply, and you can't just tap the backup panel since it can be bypassed to be powered directly by the grid. So I am hoping the inverter 12 volt output is sufficient.
Using the 12 volt output is indicated in the inverter manual, so this is not outside the expectations.
Mike C.
what grade of wire are you buying for these prices?
Stranded THHN/THWN 10gauge, CME and SouthWire brand. One had a damaged spool. It would have been a real bear to unspool on a jobsite, but for home use the extra time to unspool was a non-issue.
