What is our PV setup? ☀️

Last updated on October 1st, 2025

Hardware

• 11.18 kWp via 26x monochrystalline IBC MonoSol 430 ES10-HC-N BF panels
  • 3.87 kWp on east roof, 41° tilt
  • 7.31 kWp on west roof, 41° tilt
• 10 kW inverter SMA Sunny Tripower 10.0 Smart Energy
• 10 kWh battery BYD Battery-Box Premium HVS 10.2
• SMA Sunny Home Manager 2.0
• 3x backup power outlets
• 11 kW wallbox SMA eCharger (max. 22 kW, 3-phase)

Status

Inverter and battery are installed in the basement. Panels are also installed since June.
So far the system works great and I'm glad we have the 10 kWh battery because we are also cooking in the evening when solar power is quiet low.

The electricity meter for the heat-pump was removed to avoid monthly fees.
The main house electricity meter was replaced with an intelligent meter (iMSys). I finally got Westnetz to let me register it and see some numbers in their portal.

Monitoring

Currently the Home Manager is collecting data and sending it to the Sunny Portal powered by ennexOS.

I already setup Home Assistent to collect some data and will also look into accessing the iMSys via HAN directly. Additionally I'm using an old Amazon Kindle Paperwhite as PV Dashboard. Feel free to ask me how this works.

For iOS and macOS and SMA systems I highly recommend Energy Meter. Such a great app, with so many detailed information. It even found all the devices itself because of modbus.

Numbers

We are using the generated electricity for everything in the house like HomeLab, fridge, TV, lights also the heating-system and warm water, but also for everything electric in the garden.

• self-sufficiency: How much of the consumed electricity was provided by PV.
• self-consumption: How much of the generated electricity was consumed. Every not consumed electricity is sent into the public grid, which pays us ~ 0.08 EUR / kWh.