fromport
Solar Addict
*nice*
10kW DC power max at this time of year!
How much storage do you have hooked up again ?
Megarevo RxLNA Discussion
- Thread starter jsmetalcraft
- Start date
10kW DC power max at this time of year!
How much storage do you have hooked up again ?
NCSolarGarage
13.2kW Off-Grid
- Joined
- Sep 23, 2021
- Messages
- 213
3 x 16s EVE LF280K. I'm not sure of the true usable capacity, maybe 40kWh? (I just figured out I can make a signature) 
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vinaytje94
New Member
Also does anyone know how you can adjust the upper low 120 voltage range. The grid voltage is 131 or 133v sometimes without exporting and that triggers overvoltage alarms and switches to battery. I simply want to increase that range to 140v. You can only adjust the 220v range from what I've seen
fromport
Solar Addict
If your grid has that high voltage, you should contact your utility company.
There should be a transformer close to your home where they could adjust the ratio between input/output.
The nominal voltage should be 120 volt per split phase so 240 volt together. Your 2 x 133 = 266 volt.
That is almost 11% over the nominal voltage.
I found this document with some searching:
So it seems your 11% is way out of line.
Hence my suggestion to contact your utility company.
Not something you should adjust on your inverter IMO.
*UPDATE*
I just saw your location is not the USA so your local conditions might be different. Check with your local utility.
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I installed this firmware today to test it. I guess it's from 2023.
Also attached is another manual from Megarevo.
The Tool is in English now and there is a new setting "Home Load" my guessing is refering to the Main Panel, but new manual doesn't mention it.
You need to decompress the file two times, the second one is the Tool now called hybrid in EN.
If you select Grid Set 220V, you can see Home Load on the screen, but if you use 120/240, Homeload will disappear from the screen, from what I noticed.
Really not sure what option to use if Grid Set 220V or 120/240
Firmware
ARM: V1.03.06
DSP: V1. 00. 06
200100 000000
Also attached is another manual from Megarevo.
The Tool is in English now and there is a new setting "Home Load" my guessing is refering to the Main Panel, but new manual doesn't mention it.
You need to decompress the file two times, the second one is the Tool now called hybrid in EN.
If you select Grid Set 220V, you can see Home Load on the screen, but if you use 120/240, Homeload will disappear from the screen, from what I noticed.
Really not sure what option to use if Grid Set 220V or 120/240
Firmware
ARM: V1.03.06
DSP: V1. 00. 06
200100 000000
fromport
Solar Addict
The firmware I posted on this link
Megarevo RxLNA Discussion
What happens is that the anti-reverse is disabled, however it wants, it sends the current to the counter and the count is in reverse. On the counter physically. I don't get carried away by the graph. Only physically on the counter. Now I am confused If you don't want to feed back to the grid...
diysolarforum.com
Your version:
md5sum DSP/HybridInverter8KSNA_v1.4.13.B03D06.out
c643e7ec2e5732a5de17fca378a992b4 DSP/HybridInverter8KSNA_v1.4.13.B03D06.out
vs mine:
md5sum HybridInverter8KSNA_v1.4.13.B03D06_20221210.out
c643e7ec2e5732a5de17fca378a992b4 HybridInverter8KSNA_v1.4.13.B03D06_20221210.out
So the other file is newer:
hybrid_app8K_V19_2.axf
vs
hybrid_app_8K_V20.axf
Homeload is indeed a new thing it seems:
On V19:
strings hybrid_app8K_V19_2.axf | grep -i homeload -> yields nothing
where as on V20
strings ARM/hybrid_app_8K_V20.axf |grep -i homeload -> show 40 occurrences
Regarding manual:
The manual pdf is labeled v1.4 but the first page shows v1.3
On page 4 it shows there is now also a 10kW version: R10KLNA.
I had seen that model mentioned in the spec sheets, not in the manual so far.
I learned something new today. I had asked MR support rep about powering a RSD device, and basically got no answer.
In this manual it clearly shows how to hook it up on page 31(labeled 30).
If you don't mind me asking:
How did you get a hold of the new firmware/manual ?
The firmware I posted on this link
has the same MD5 checksum for .out fileMegarevo RxLNA Discussion
What happens is that the anti-reverse is disabled, however it wants, it sends the current to the counter and the count is in reverse. On the counter physically. I don't get carried away by the graph. Only physically on the counter. Now I am confused If you don't want to feed back to the grid...
Your version:
md5sum DSP/HybridInverter8KSNA_v1.4.13.B03D06.out
c643e7ec2e5732a5de17fca378a992b4 DSP/HybridInverter8KSNA_v1.4.13.B03D06.out
vs mine:
md5sum HybridInverter8KSNA_v1.4.13.B03D06_20221210.out
c643e7ec2e5732a5de17fca378a992b4 HybridInverter8KSNA_v1.4.13.B03D06_20221210.out
So the other file is newer:
hybrid_app8K_V19_2.axf
vs
hybrid_app_8K_V20.axf
Homeload is indeed a new thing it seems:
On V19:
strings hybrid_app8K_V19_2.axf | grep -i homeload -> yields nothing
where as on V20
strings ARM/hybrid_app_8K_V20.axf |grep -i homeload -> show 40 occurrences
Regarding manual:
The manual pdf is labeled v1.4 but the first page shows v1.3
On page 4 it shows there is now also a 10kW version: R10KLNA.
I had seen that model mentioned in the spec sheets, not in the manual so far.
I learned something new today. I had asked MR support rep about powering a RSD device, and basically got no answer.
In this manual it clearly shows how to hook it up on page 31(labeled 30).
If you don't mind me asking:
How did you get a hold of the new firmware/manual
I just sent a message to Megarevo Support WhatsApp number. We had a conversation and I sent everything they ask me and at the end they sent me the firmware and manual. They were probably in a good mood.
fromport
Solar Addict
Hahahaha... that is exactly what I just found out after flashing the new firmware and I was just going to write about it ;-)
Arm and DSP stayed the same, only left of bottom line went from 190100 to 200100.
I don't see any further changes.
This version does have the generator setup included btw:
I noticed the grid is not feeding now the 200-300w supplementing the battery.
fromport
Solar Addict
I re-read your sentence multiple times but I have a hard time understanding what you are trying to say.
Could you elaborate a bit please ? (non-native english speaker here)
eleceng1979
New Member
- Joined
- Jun 19, 2022
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- 40
Does anyone have existing grid tie PV inverters in use with these inverters? The manual has zero mention of AC coupling. The inverters seem to be pretty nice, with the exception of the firmware/software which is typical of the imported inverters.
I have a need to add batteries to existing grid tied systems. The only solutions that appear solid/trouble free are outback/schneider for my AC coupled usage due to KW in/out required. I am drawn to these inverters due to larger KW output on the larger models. I have a project with 3 x 6.0KW SMA GT's and wanted to try and reuse the GT's, but appears that rewiring to DC coupling would be the only solution with the Megarevo's. Even with other solutions I planned on rewiring 1 or 2 GT's and trying to keep a mix of both DC and AC Coupling.
I have a need to add batteries to existing grid tied systems. The only solutions that appear solid/trouble free are outback/schneider for my AC coupled usage due to KW in/out required. I am drawn to these inverters due to larger KW output on the larger models. I have a project with 3 x 6.0KW SMA GT's and wanted to try and reuse the GT's, but appears that rewiring to DC coupling would be the only solution with the Megarevo's. Even with other solutions I planned on rewiring 1 or 2 GT's and trying to keep a mix of both DC and AC Coupling.
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vinaytje94
New Member
L-L voltage is not 266 but in this case 223 or something. The location has a 2phase 2x127/220v supply (2 phases out of 3)
At this moment both legs are 130v, didnt trigger overvoltage yet.
Attachments
I re-read your sentence multiple times but I have a hard time understanding what you are trying to say.
We are two non native english speaker and mine probably is worst lol.
I can export because I have Net Metering.
My inverter most of the time supply 200-300w from the grid constantly even when my battery was charged in the night or my production was high enough to charge the battery and supply the Loads.
Now is not doing that. The inverter is using the battery and production to supply the loads and there is nothing from the grid.
One of the pictures show 200w from the grid even my production was high and the second one with the firmware update is not doing that.
We are two non native english speaker and mine probably is worst lol.
I can export because I have Net Metering.
My inverter most of the time supply 200-300w from the grid constantly even when my battery was charged in the night or my production was high enough to charge the battery and supply the Loads.
Now is not doing that. The inverter is using the battery and production to supply the loads and there is nothing from the grid.
One of the pictures show 200w from the grid even my production was high and the second one with the firmware update is not doing that.
Attachments
NCSolarGarage
13.2kW Off-Grid
- Joined
- Sep 23, 2021
- Messages
- 213
This is great news if they are finally getting the grid-tied issues worked out in these newer firmwares!
fromport
Solar Addict
I am running the latest software.
I still see what you are describing.
This is a graph from my smart meter, so real power from/to grid over the last hour after sun set:
about 5 minute intervals, still 420 watt into the grid.
When I look at my sense unit where I can see per phase, i see this:
one of the phases is pulling power, the other is putting energy in the grid (from the battery)
Not Good [TM]
Damn, I hope the next version with advanced settings will solve that.
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powerpoint solarja
New Member
NCSolarGarage
13.2kW Off-Grid
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- 213
A reboot should clear the error in the interim, but you'll have to know the loads to predict why its happening. Are you using the solarman wifi adapter? Can you share the consumption graphs?
NCSolarGarage
13.2kW Off-Grid
- Joined
- Sep 23, 2021
- Messages
- 213
Is anyone able to Remote Control their inverter thru solarman Pro/Business interface? I see you can set peak shift times and toggle EPS, etc thru the Home solarman interface, but it says not available when I try to access thru Pro. Is this a limitation of these other interfaces?
I am not sure you can but the dongle does have the ability to do that. Which is what I was kinda worrisome for me, having a device ran off a server in China with the ability to control the power at my house. This is one of the many reasons I got rid of the wifi dongle and only went with modbus serial connection on a local device.
NCSolarGarage
13.2kW Off-Grid
- Joined
- Sep 23, 2021
- Messages
- 213
Its a bummer because I like the pro interface better, but home seems to give more options. As far as the Chinese companies, you can either delete them from the dongle or thru solarman interface. Although I'm not sure if that completely locks out their access.
I have found, like most iot Chinese things, they always put a back door in there for data gathering.
Durk_2007
New Member
For those of you who have one would you buy it again? And is the blue sun BSE-8KLNA the same inverter ( can use megarevo updates). I got bit by the LVX6048 and looking for a replacement
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