Solutions

Home-Automation Systems based on Raspberry PI

Documents describing a Raspberry PI based home automation solution – Documents for free download, without guarantee by or liability of the author.

User Interface – EV charging / Home Energy Management

User Interface

EV charging
Best price charging for dynamic electricity pricing (set SOC target & time to complete). Alternatively:

  • Surplus charging with priority car or home battery (automatic phase switching)
  • Standard charging @ # amps & # phases
  • Phase current protection
  • Communication with Wallbox via MODBUS (ABL eMH1 or Amperfied Energy Control)

Home Energy Management

  • Modbus-TCP communication with the Huawei SUN2000-6KTL inverter and LUNA2000 home battery
  • Scheduling of home-battery charging and discharging based on dynamic electricity pricing
  • Integration of the heat pump via Modbus TCP (Heliotherm) or via the Vaillant API (Vaillant HP)
  • Dynamic adjustment of room-heating and hot-water setpoints based on dynamic electricity prices
  • Tracking, logging, and analysis of energy consumption and energy costs

Electricity Cost Forecast

Electricity Cost Forecast – Diagramm
Car Communication Window

Car Communication Window

Car data
via Volkswagen WeConnect API über das CarConnectivity-Package (GitHub)

  • remote control of start/stop car charging
  • remote control of start/stop car climatization
  • trigger refreshing of WeConnect API

Monthly and daily evaluation of energy data

Monatsauswertung Energiedaten Tagesauswertung Energiedaten

Usage of home battery:

Schematic

Schematic – Home Energy Management System