A major update focused on faster synchronized Energy Flow, Heat Pump intelligence, EV charging, Time-of-Use tariffs, Smart Control and system reliability.
⚡ Faster & Synchronized Energy Flow
- New atomic Energy Flow snapshot architecture
- Solar, Grid and Battery are collected together for each calculation cycle
- House Power is calculated from the same current snapshot
- Derived Energy Flow sensors update together
- Significantly improved Solar / Grid / House response time
- Eliminated reuse of stale cached flow measurements
- Source timing and synchronization diagnostics
- Recorder-safe Energy Flow attributes
Real-world testing reduced observed House Power differences from approximately 56–63% to around 4–9% in the reported test conditions.
🌡️ Heat Pump & DHW
- Clear Heating / Hot Water separation
- Separate electrical Power and Thermal Power presentation
- Improved DHW-only and Space Heating semantics
- Correct Standby / Idle presentation
- Circuit-aware fallback for Heat Pumps without separate live circuit-power sensors
- Optional generic Heat Pump mappings can be cleared and remain cleared
- Direct Live COP sensors remain supported
- Validated with Buderus/Bosch via EMS-ESP and Viessmann Vitocal
🚗 EV Charger Integration
- Live EV charging power in the Command Center
- Multiple registered EV chargers supported
- go-e Charger PV-surplus Smart Control via MQTT
- Explicit control-permission safety gates
- Real-world PV-surplus charging validated with a connected vehicle
- Session-aware EV Timeline handling
🔥 ELWA Smart Control
- Improved my-PV AC ELWA 2 supervised control
- Optional temperature and external lockout evidence
- Improved portability between Home Assistant installations
- Installation-specific entity defaults removed
- Existing safety and control-ownership protections preserved
💰 Time-of-Use Tariffs
- Fixed or Time of Use tariff modes
- Configurable Night / Day / Peak periods
- Custom tariff periods
- Overnight tariff support
- 24-hour schedule validation
- Active tariff indication
- Finance calculations use the applicable tariff period
- Existing fixed-tariff configurations remain supported
🖥️ Command Center
- Improved Heat Pump Heating / Hot Water presentation
- Independent Electric Heater
- Heat Pump Day Consumption
- Up to two registered EV Charger boxes with live charging power
- Faster synchronized Energy Flow
- Existing registered / unknown load accounting preserved
🕒 Home Energy Timeline
- Improved registered-load activity hysteresis
- Reduced false appliance start/stop events
- EV charging uses session-aware stop confirmation
- Brief charging interruptions no longer create unnecessary new sessions
🛡️ Reliability & UX
- Energy Flow Recorder 16 KB protection
- Registry Summary Recorder protection
- NAS Backup configuration protected from disruptive auto-refresh while editing
- Device Manager frontend packaging synchronized
- Legacy Heat Pump mapping UI cleanup
- Sidebar behavior corrected
- Frontend/backend version metadata synchronized
Thank You
Special thanks to Martin, Colm and the Home Assistant community testers whose detailed measurements, screenshots and real-world testing helped validate this release.
⚡ AION EMS Zeus — Smart Energy. Total Control.