A brief introduction of your system:
System consist single phase 3kW PV system, 1.5kW Boiler and different house and garden electrical loads and connected to the main grid.
We implemented our own simple ON/OFF boiler control, connecting it to the PV inverter dry relays - When PV feed-in exceed specific threshold, boiler is switched on, when it goes below, accordingly off. It could safe some energy and not to feed PV excess energy to the main grid. With WPC3700 we expect to substitute existing solution with more advanced control.An estimate of your current electricity cost for the boiler heater and the proportion of solar PV used in its power supply:
As we already have the system in place, which charge the boiler during the summer period from the PV-feed in, so we try to utilise sun fully. However existing system not considers other loads in this particular moment, and it means that we could consume much more than PV-system is providing. WPC3700 could improve it, and follow overall consumption of the house and garden, and charge the boiler only in the cases when we have excess of the PV system
In particular moment boiler has two heaters, each 750W, and here is how it looks like during clear sky day in the summer (September 2024):
Existing control is not so smooth, and in this particular case WPC3700 could behave smoother. So there are clearly case when Total consumption is high around 10 o'clock and there are consumption from the grid (Boiler and other loads together). Ideally is should decrease the boiler consumption and start charge when excess of energy is available
Other example from July 2024:
Similar picture also there, that boiler works all the time
During cloudy days, situation is even more crazy :) (July 2024)
The self-consumption rate of PV system and considering existing control is around 90% (so most of the energy produced by PV is already used locally). But there is also side when consumption is high and boiler is still consuming energy from the grid.
A screenshot of the IAMMETER system "overview" dashboard and a screenshot of the self-consumption rate analysis report.
self-consumption rate analysis report is not available in my case, probably due to the missing separate real-time PV system information. Tried to assign Virtual Meter with PV data, but not successful yet. ( "message": "Invalid SN" )
I hope it could be interesting showcase
Keep in touch
Thanks for your sharing first.
Please let me know
1 where did you get the sn of the virtual meter ?
2 where prompt you "invalid sn" when you input the SN you get from step 1?
Please attach the snapshot in your reply (for security concern, please also hide some characters for the SN in your picture)
Hoy!
I tried the example provided from here:
https://open.iammeter.com/doc/open/uploading-data.html via postman, for test i use some dummy values.
1. I get it in Virtual meter, when define PushAPI:
Now it looks the following, I use SN :
Hope it helps!
This is due to the SN has not been added.
Just like you receive an energy meter with an SN snap on the box, but you do not add the SN in your account.
You need to add this sn to a "place".
Then the prompt of "invalid sn" would disappear.
please do not push data shorter than 1 min
OK.
By the way, would you mind to share what is the data source that you pushed to the IAMMETER by this API interface?
3kW PV inverter data, i read data from it directly and store in my HAN. Let me know if you need more info
so cool.
Which is the brand of the inverter?
In fact ,we do not introduce how to use the "push API" mode in pubic since now.
You may be the first user using the "push API" in virtual meter .
If it is convenient,I want to know how do you achieve this (request the data of the inverter and push them into the virtual meter of IAMEMTER).
In additon ,I also think the WPC3700 is a better for you than the "simple switch" control mode.
If you like ,you can purchase it in the discount price listed here https://imeter.club/topic/667