Get the solar generated energy stats

[shanrahul]

Hi , Is there any way to get the solar generated energy by day, month and year?

[jblance]

some inverters have commands for this information - what inverter model are you using
this code is basically just for querying the inverter - it doesnt maintain state my itself. If the inverter doesnt have this information you can use influx and grafana to store, aggregate and display data over time

[shanrahul]

I'm using Easun SMV3kw inverter and I had an option to see the generated energy stats in the display of the inverter. My inverter is using the PI30 protocol and i refer the document you attached here , "PI30_PIP-GK_MK-Protocol.pdf" , there it says like this,

1.15 QED: Inquiry total energy in the day
Computer: QED
Y is an Integer number 0 to 9, M is an Integer number 0 to 9, D is an
Integer number 0 to 9. nnn is the checksum for QEDYYYYMMDD and the decimal number
towards lower 8 digits.
Device: (NNNNNN.
N is an Integer number 0 to 9. The unit is Wh.
For example:
Computer：QED20110701102
Device: (030123
Means: in 2010/09/26, the total energy is: 30123Wh

So is there any way to use this in the code ?

[jblance]

You could try with the PI30MAX protocol for the QED command

…

On Fri, 29 Oct 2021, 5:45 am shanrahul, ***@***.***> wrote: I'm using Easun <https://www.easunpower.com/products/EASUN-POWER-Bluetooth-Inverter-3000W-500Vdc-PV-230Vac-24Vdc-80A-MPPT-Solar-Charger-Support-Mobile-Monitoring-USB-LCD-Control> SMV3kw inverter and I had an option to see the generated energy stats in the display of the inverter. My inverter is using the PI30 protocol and i refer the document you attached here , "PI30_PIP-GK_MK-Protocol.pdf" , there it says like this, 1.15 QED: Inquiry total energy in the day Computer: QED Y is an Integer number 0 to 9, M is an Integer number 0 to 9, D is an Integer number 0 to 9. nnn is the checksum for QEDYYYYMMDD and the decimal number towards lower 8 digits. Device: (NNNNNN. N is an Integer number 0 to 9. The unit is Wh. For example: Computer：QED20110701102 Device: (030123 Means: in 2010/09/26, the total energy is: 30123Wh So is there any way to use this in the code ? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#176 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJVKNVZ6AQOQ2RLNZYAC6LUJF4Y5ANCNFSM5G2WXAPQ> .

[smrruby]

I'm using the "ET" query under Protocol 18 for this on an LVX6048 which provides a value that should be an accumulator for total energy generated

ET                              Query total generated energy -- queries total generated energy from the Inverter

However, while the number generally increases over time (as a meter/accumulator) should, sometimes it randomly shrinks between readings for reasons I can't explain. I don't believe the issue is inside mpp-solar because I would see sudden decreases in the value using the app as well.

Anybody else experience these inverters suddenly reducing the metered energy generation? Find any fixes (settings, etc?)?

this value seems reasonable until it randomly decreases over 100, or even over 1000 KWH between reads

2023-01-22 14:29:19,462:DEBUG:hidrawio:send_and_receive@36: 1 chunk send
2023-01-22 14:29:20,382:DEBUG:hidrawio:send_and_receive@69: usb response was: b"^D01100370583'\xce\r"

Command: ET - Query total generated energy
------------------------------------------------------------
Parameter                       Value           Unit
generated_energy                370583          kWh

[wolf76man]

Hi!
I am using P16 protocol and i see missing commands: QEM, QEY and QEH.
Is it posible to add? Can i do it on my local to test? How?

Thanks for your work! This is very usuefull to me!

[jblance]

created an issue for this #324

if you know how to run from the source, making the changes involves editing the protocol definition for pi16

[wolf76man]

Thanks!
I am a developer. But never touched python before.
I'll give it a go this week.
Thanks again

[jblance]

there is a QED definition that can be used as an example

[wolf76man]

Yes. I saw it. It should be almost the same for all.
I am fluent in java. But i couldn't find a way to read the inverter USB. I have code in x86 that work ok. But on arm is not working..
Ill set a python env to do some test before attempt this. I want to understand how is the best way to go.
Thank John

[jblance]

if you wait a few days I will make the changes otherwise, a separate python venv is best start

…

On Mon, 27 Mar 2023 at 15:30, wolf76man ***@***.***> wrote: Yes. I saw it. It should be almost the same for all. I am fluent in java. But i couldn't find a way to read the inverter USB. I have code in x86 that work ok. But on arm is not working.. Ill set a python env to do some test before attempt this. I want to understand how is the best way to go. Thank John — Reply to this email directly, view it on GitHub <#176 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJVKNTQRTROFQHKAY3HSC3W6D3TVANCNFSM5G2WXAPQ> . You are receiving this because you commented.Message ID: ***@***.***>

[jblance]

a quick attempt at adding these in latest source

[wolf76man]

thanks. ill check
i tried to run locally. i found error in requirements.txt:
mpp-solar should be mppsolar. no?

now i have error ModuleNotFoundError: No module named 'setuptools'
not sure why its all installed.
i am a rookie hahaha

[jblance]

yeah installing from source is always a painful "oh i need another package" process

if you use a venv, you end up with a isolated environment, so things need to be installed there (and sudo breaks out of the venv)

[wolf76man]

Hi!
Sudo was creating issues. thanks for the tip.
i was able to run some commands from my local after installing locally with:
pip install -e .

but if i try to run others i get
pkg_resources.DistributionNotFound: The 'psycopg2' distribution was not found and is required by mppsolar

this is familiar to you?
Thanks

[wolf76man]

Made it work with poetry.
If i add something to the code ill share with you.
Thanks.

[jblance]

Great to hear. Just documenting what you've done is a great help (docs always get left behind)

…

On Sun, 2 Apr 2023, 10:29 am wolf76man, ***@***.***> wrote: Made it work with poetry. If i add something to the code ill share with you. Thanks. — Reply to this email directly, view it on GitHub <#176 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJVKNSAUZIP2KU74EJMLATW7CT3NANCNFSM5G2WXAPQ> . You are receiving this because you commented.Message ID: ***@***.***>