Solutions

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)

• 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

• red - gross electricity price (incl. grid fees and VAT)
• dark red - compound electricity price (gross price devaluated by PV contribution) governing HP temp. scheduling
• green - PV power forecast (www.solcast.com or www. openweathermap.org)
• cyan - net electricity price (www.awattar.com)
• amber - heatpump room temperature setpoint
• dark blue - heatpump - hotwater temperature setpoint
• yellow shade - time battery charge freeze
• grey shade - time of best price car charging
• white shade - time of maximum self consumption (emptying of battery)
• red shade - time of battery charging from grid

• Storage of surplus PV energy
• Storage of low cost grid power