Lutz Finsterle
fc535d395c
With a 4.6kW inverter and 4kW WallboxB + ~450W house load, any PV dip causes brief grid import and would trigger shutdown/restart cycling. New config: wallbox_a_accepted_import_w / wallbox_b_accepted_import_w WallboxB set to 600W: engine skips shutdown if import <= 600W, keeping the car charging through short cloud shadows. WallboxA disabled (2kW leaves sufficient inverter headroom without needing tolerance). Logic: shutdownLastConsumer checks per-consumer tolerance before applying min-runtime and initiating turn-off. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
129 lines
5.9 KiB
YAML
129 lines
5.9 KiB
YAML
# EMS Configuration
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# All thresholds and timing parameters are configurable here.
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prometheus:
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url: "http://192.168.0.23:9090"
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# Metric names from the custom Viessmann exporter
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metrics:
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grid_power_exchange: "pcc_transfer_power_exchange_value" # positive = import, negative = export
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battery_soc: "ess_stateOfCharge_value" # 0-100%
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pv_production: "photovoltaic_production_current_value" # watts
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battery_power: "ess_power_value" # watts
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compressor_power: "heating_compressors_0_sensors_power_value * heating_compressors_0_power_value * 10" # actual watts: sensors(%) × rated_kW(10) × 10
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ambient_temp: "heating_sensors_temperature_outside_value" # °C
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phase_l1_power: "pcc_ac_active_power_phaseOne" # per-phase grid power L1 (W)
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phase_l2_power: "pcc_ac_active_power_phaseTwo" # per-phase grid power L2 (W)
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phase_l3_power: "pcc_ac_active_power_phaseThree" # per-phase grid power L3 (W)
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# Shelly actuators
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shelly:
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sg_ready:
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ip: "192.168.42.90"
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gen: 1 # Gen1: /relay/0?turn=on|off
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wallbox_a:
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ip: "192.168.42.185"
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gen: 2 # Gen2: /rpc/Switch.Set
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power_w: 2000
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password: "" # set Shelly admin password if auth is enabled
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wallbox_b:
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ip: "192.168.42.51"
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gen: 2 # Gen2: /rpc/Switch.Set
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power_w: 4000
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password: "" # set Shelly admin password if auth is enabled
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# Viessmann API (write access for WW temperature)
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viessmann:
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token_file: "/etc/ems/viessmann-token.json" # OAuth2 refresh token
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client_id: "5d1235548dfaa01ce37db8f865d2df4d"
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installation_id: "1253124"
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gateway_serial: "7637415006796210"
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device_id: "0"
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# SOC thresholds — which consumers are allowed at which battery level
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soc_thresholds:
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block_all: 50 # below 50%: no consumers
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sg_ready_only: 70 # 50-70%: only SG-Ready (heating period)
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plus_wallbox_a: 90 # 70-90%: + Wallbox A (2kW)
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all_consumers: 90 # above 90%: all consumers
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# Hysteresis settings
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hysteresis:
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export_on_duration: "4m" # export must persist for 4 min before switching on
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import_off_duration: "6m" # import must persist for 6 min before switching off
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min_runtime_wallbox: "15m"
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min_runtime_sg_ready: "30m"
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# Power thresholds (grid_power_exchange is positive=import, so we check for negative values)
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# These are the NEGATIVE thresholds (export) that trigger consumers
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thresholds:
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sg_ready_export_w: -500 # export > 500W → SG-Ready
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ww_export_w: -500 # export > 500W → WW boost
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wallbox_a_export_w: -1800 # export > 1800W → Wallbox A (total, fallback if no phase data)
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wallbox_a_phase_export_w: -1500 # per-phase export needed for single-phase Wallbox A
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wallbox_b_export_w: -3800 # export > 3800W → Wallbox B
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import_off_w: 200 # import > 200W → start shutdown timer
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# Strategic layer (PV forecast based, daily)
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strategic:
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forecast_high_kwh: 25
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forecast_mid_kwh: 15
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ww_base_c: 48 # normal WW setpoint (°C)
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ww_boost_high_c: 5 # +5°C on high-forecast days (>25 kWh)
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ww_boost_mid_c: 3 # +3°C on medium-forecast days (>15 kWh)
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ww_window_start: "12:30" # WW boost only allowed from 12:30
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ww_window_end: "18:00" # ... until 18:00
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schedule_on: "08:00"
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schedule_off: "20:00"
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# Consumer behavior — idle detection thresholds
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consumers:
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compressor_idle_w: 500 # heat pump compressor below this = idle (W); running starts at ~2700W, so 500W cleanly separates idle (0W) from running
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wallbox_min_charge_w: 50 # wallbox below this = car not charging (W)
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idle_cycles: 3 # consecutive idle cycles before early release (~6 min at 2-min poll)
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wallbox_a_accepted_import_w: 0 # tolerate this much grid import while WallboxA is running (0 = disabled; WallboxA is 2kW, inverter headroom is sufficient)
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wallbox_b_accepted_import_w: 600 # tolerate up to 600W import while WallboxB runs (4kW wallbox + 450W house > 4.6kW inverter max on PV dips)
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# Season detection
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season:
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heating_start_month: 10 # October
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heating_end_month: 4 # April
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heating_min_ambient_c: 15 # above 15°C outdoor temp: no SG-Ready even within heating months
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# PV forecast — forecast.solar (free, no API key required)
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forecast:
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enabled: true
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lat: 48.7839
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lon: 9.3889
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declination: 20 # panel tilt in degrees
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azimuth: 5 # degrees from south (south=0, west=90, east=-90)
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kwp: 7.0 # installed peak power
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fetch_interval: "4h" # re-fetch during the day (free tier: 12 req/day → 3 fetches)
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fetch_window_start: "07:00"
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fetch_window_end: "19:00"
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base_load_w: 450 # steady-state house consumption (W) — spikes from kettle/dishwasher are hourly averages and negligible
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min_surplus_w: 1800 # min export surplus to trigger wallbox — matches wallbox_a threshold
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# EMS operational settings
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ems:
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poll_interval: "2m"
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listen_addr: ":9099" # Prometheus metrics endpoint
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log_level: "info"
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state_file: "/run/ems/heartbeat" # written each cycle for state recovery
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recovery_timeout: "1h" # ignore Shelly state if EMS was down longer
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override_timeout: "1h" # default lockout when EMS detects external Shelly change
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override_max_import_w: 800 # cancel override immediately if importing more than this (0 = disabled)
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monitor_only_file: "/etc/ems/monitor-only" # presence of this file = monitor-only mode active
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ww_boost_disable_file: "/etc/ems/ww-boost-off" # presence of this file = WW boost disabled
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trip_goal_file: "/var/lib/ems/trip-goal.json" # persisted active trip goal
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session_log_file: "/var/lib/ems/sessions.jsonl" # JSONL log of completed charge sessions
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# Known car profiles for trip mode
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cars:
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mini:
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name: "Mini Cooper SE"
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battery_kwh: 50.0
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bmw:
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name: "BMW ix2 eDrive20"
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battery_kwh: 63.0
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