Hi everyone,
yesterday I strapped the new SolarSense 750 to my pannel array with an endclamp (Maybe add this to the assembly instructions?) and have a question:
How do the sensor calculate the active aerea [m²] of the panel because the sensor measures W/m²?
In my case the module shown has 420 W (I set 8*420 in the config), but the same sice panel today has maybe 465 W.
So the estimated yield was calculated ro 14kWh for today, but the MPPT has harvested 13,14 kWh.
Max power is shown as 2472 W, measured 2445 W so very close.
Hi @Sebastian, the SolarSense doesn’t actually need to know the area of your PV panels.
A 420Wp panel will produce 420W at an irradiance of 1000W/m² (STC). Consequently, the SolarSense can estimate the instantaneous output of the PV array by dividing the Wp rating of your installation by 1000W/m² and multiplying by the instantaneous irradiance level. For instance, at 100W/m2 this will be 42W per panel. The surface area of the panel isn’t part of the equation.
In most cases the estimated yield will be slightly higher than the actual yield due to losses in the MPPT/inverter or other inefficiencies.
Now another question came to my mind:
The device is also made to check a new spot for solarpanels. Is there a way to import the recorded data via the VictronConnect app? So no GX device is needed at that new location
Hi @Sebastian, currently that is not possible. Only when connected to the SolarSense via VictronConnect you can see the historical data.
I will add this as a feature request, but can make no promises if and when this will be implemented.
Hi Luc,
Can we please have VRM adjusted so it shows Watts in the dashboard view versus just irradiance? Basically like how it shows in Victron Connect would be ideal.
Victron Connect:
Hi @Brucey this change is already on the backlog, but hasn’t yet been picked up.
