lutz/EMS
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0020f1268b108098060777411563b6ca72ad58a9
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3 Commits

Author SHA1 Message Date
Lutz Finsterle
0020f1268b Add EV charging advice notification to status page 
Uses hourly PV forecast data (watts per hour from forecast.solar) to
find the first contiguous block of hours where:
  PV production - base_load_w >= min_surplus_w

Shows a blue advice card on the status page:
  "Auto einstecken bis HH:MM Uhr"
  "Erwartetes Überschuss-Fenster: HH:MM – HH:MM Uhr"

Card is hidden when:
- No surplus window found (weak forecast day)
- Window has already started or passed
- A wallbox is currently active (car already charging)

Config: forecast.base_load_w (1000W), forecast.min_surplus_w (1800W)
Timestamp parsing handles both "HH:MM:SS" and "HH:MM" key formats.
Today: surplus window 11:00–13:00 (24.3 kWh forecast).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-06 10:30:58 +02:00
Lutz Finsterle
79828a46c5 Add status page enhancements and engine improvements 
Status page:
- Per-phase grid power (L1/L2/L3) with export/import direction
- Shelly PM live power badge on active wallbox rows
- Compressor power shown below consumer list
- SyncDeviceStates() method on Store for PM power readback

Engine:
- Fix wallbox mutex: re-read Active state after P3 so same-cycle
  WallboxA activation correctly blocks WallboxB in P4
- Fix RecoverState: set ActivatedAt to zero so recovered consumers
  are immediately eligible for shutdown decisions
- Add 3 new unit tests: mutual exclusion, car-not-charging,
  compressor-idle early release

Makefile:
- make install no longer overwrites /etc/ems/ems-config.yaml if it
  already exists (prevents password loss on updates)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-06 10:06:01 +02:00
Lutz Finsterle
99613c52ae Initial commit: EMS — Energie Management System 
Complete self-consumption optimisation system for 7 kWp PV installation:
- Prometheus collector (grid power, SOC, PV, per-phase, compressor)
- Pure decision engine with SOC gates, hysteresis, priority ordering
- Shelly Gen1/Gen2 actuator (SHA-256 Digest auth, PM power readback)
- Viessmann OAuth2 client for DHW temperature control
- PV forecast integration (forecast.solar)
- Wallbox mutual exclusion (VX3 4.6 kW AC output constraint)
- Car-not-charging detection via Shelly PM
- Compressor idle → early SG-Ready release
- Per-phase grid power for single-phase wallbox decisions
- Manual override detection and web UI with override buttons
- Full unit test coverage for decision engine
- systemd service, Makefile, complete documentation

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 2026-04-06 10:02:16 +02:00