Commit Graph

4 Commits

Author SHA1 Message Date
db46fcf0c6 Add SG-Ready startup grace period and daily PV yield tracking
SG-Ready startup grace period (sg_ready_startup_min: 10):
Heat pump compressor takes ~9 minutes to start after receiving the
SG-Ready signal. Previously, idle detection fired after only 3×2min=6min,
turning off SG-Ready before the compressor had time to respond. The grace
period suppresses idle detection for the configured duration after activation.
0 = disabled (tests and unconfigured deployments are unaffected).

Daily PV yield (photovoltaic_production_cumulated_currentDay):
Reads actual kWh produced today from Prometheus (Wh → kWh, ÷1000).
Logged as pv_today_kwh each cycle. Shown on status page in two places:
- PV card sub-line: "Heute: 31.9 kWh"
- Forecast card alongside forecast: "Ist: 31.9 kWh"
Immediately makes forecast vs reality visible (today: forecast 15.9,
actual 31.9 kWh — explains why SOC bypass triggered).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-09 21:00:57 +02:00
2728755738 Fix proactive charging, logging, and status page ordering
1. SOC high bypass: when SOC >= soc_high_bypass_pct (default 90%), activate
   car charging without requiring a good forecast. Solves today's missed
   charging window where 4kW was exported for 6h with a full battery because
   the intraday forecast dropped from 15.4 to 13.3 kWh.

2. Log ambient_c in every cycle: makes it diagnosable why isHeatingPeriod
   suppresses SG-Ready on warm days (heating_min_ambient_c: 15°C gate).

3. Consumer names in logs: replace slog integer Consumer values with
   .String() so logs show "wallbox_a" instead of "2".

4. Status page order: reorder consumers by EMS priority (WallboxA →
   WallboxB → WW → SG-Ready) instead of the old reversed order.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-09 20:47:56 +02:00
971e22c4be Implement proactive forecast-driven car charging strategy
- Replace reactive export-threshold wallbox activation with proactive
  logic: WallboxA/B activate when forecast ≥ mid AND PV ≥ threshold
  AND SOC ≥ 35%, without requiring grid export surplus
- Add WallboxB no-car detection via grid-delta probe (no PM available):
  after probe window, if grid shift < GridDeltaThreshW → no car, retry
  after configured timeout
- Add EOD soft stop: after 16:00, stop proactive car charging if
  remaining PV estimate can't cover battery deficit to 90% by sunset
- WW boost no longer requires export threshold; dynamic setpoint uses
  tank top temp + hysteresis + boost delta, capped at 60°C
- Proactive wallboxes bypass import-hysteresis shutdown; SOC emergency
  brake uses SOCFloor (5%) instead of standard AllConsumers gate
- Add WWTopTempC to SystemState (ww_top_temp metric from DHW cylinder)
- Add BatteryConfig (capacity_kwh), CarChargingConfig to config
- Add WWMaxSetpointC, WWHysteresisC to StrategicConfig
- Update Decide() signature: forecastKWh + sunsetTime parameters
- Update all tests; add proactive charging test cases

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-07 21:23:04 +02:00
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