Gints KiršteinsandClaude Sonnet 4.6
87f078ba72
- EMHASS config for Deye SUN-12K + 32 kWh battery, NordPool LV - Day-ahead optimization automation (14:30 daily) with real battery SOC init - Forecast vs reality template sensors and dashboard card - Migration log from Domoticz Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
77 lines
3.7 KiB
Markdown
77 lines
3.7 KiB
Markdown
# Migration Log — HA + Domoticz
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## 2026-04-06 — EMHASS Initial Configuration
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### Discovery completed
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- All critical Deye inverter sensors confirmed working via MQTT
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- Sign conventions verified:
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- `battery_power`: positive = discharging, negative = charging
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- `total_grid_power`: positive = import, negative = export
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- Formula: `grid + pv = load + (-battery)` ✓
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### Sensor decisions
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| Role | Sensor chosen | Notes |
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|------|--------------|-------|
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| PV power | `sensor.deye_inverter_mqtt_dc_total_power` | DC total (PV1+PV2) |
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| House load | `sensor.load_power_no_var_loads` | Template sensor, ready for EV subtraction later |
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| Grid power | `sensor.deye_inverter_mqtt_total_grid_power` | Signed, +import/-export |
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| Battery SOC | `sensor.deye_inverter_mqtt_battery_soc` | Direct from inverter |
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| Battery power | `sensor.deye_inverter_mqtt_battery_power` | Signed, matches EMHASS convention |
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| Spot price | `sensor.nordpool_kwh_lv_eur_3_10_021` | LV zone, 15-min resolution, has today/tomorrow arrays |
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### Legacy sensors to clean up (not used in EMHASS)
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- `sensor.deye_pv1_power`, `sensor.deye_pv1_voltage`, `sensor.deye_pv1_current`
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- `sensor.deye_pv2_power`, `sensor.deye_pv2_voltage`, `sensor.deye_pv2_current`
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- `sensor.deye_total_pv_power`, `sensor.deye_pv_day_energy`, `sensor.deye_total_pv_energy`
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- `sensor.total_ev_power`, `sensor.total_ev_energy` (CT clamp readings, not OpenEVSE integration)
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- `sensor.deye` (utility meter, check if still needed)
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### EMHASS config written
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- File: `config_emhass.yaml` in this repo
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- Deploy to HA at: `/config/emhass/config_emhass.yaml`
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- Version targeted: v0.17.1
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- Mode: self-consumption, no grid export, no EV (to be added later)
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- Key parameters: 32 kWh battery, 11 kW charge/discharge, 16090 W grid limit, 10% min SOC
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### MCP setup
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- Fixed hass-mcp env var (was `HATOKEN`, needed `HA_TOKEN`)
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- Installed `uv`/`uvx` to `~/.local/bin` (required by hass-mcp)
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- Config stored in `~/.claude.json` (local scope, this project)
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### Completed — 2026-04-06
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#### Config deployment
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- Deployed `config.json` to `/addon_configs/5b918bf2_emhass/config.json`
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- Had to find correct path (newer HA OS uses `/addon_configs/{slug}/` not `/homeassistant/`)
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- Fixed sensor: switched to `sensor.deye_inverter_mqtt_total_load_power` (has history, unlike `load_power_no_var_loads`)
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#### NordPool integration
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- EMHASS v0.17 has no native NordPool sensor support
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- Solution: `load_cost_forecast_method: "list"` + pass price array at runtime
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- Automation builds 48-value list from NordPool `tomorrow` attribute (resampled from 15-min to 30-min)
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- Fixed cost added: 0.1437 €/kWh (distribution + VAT)
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#### Files updated on HA
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- `/addon_configs/5b918bf2_emhass/config.json` — EMHASS config
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- `/homeassistant/configuration.yaml` — added `rest_command` for EMHASS API calls
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- `/homeassistant/automations.yaml` — added `emhass_dayahead_optimization` automation
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#### Daily automation
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- Triggers at 14:30 EET/EEST
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- Waits up to 60min for `tomorrow_valid == true`
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- Resamples NordPool prices, adds fixed cost, POSTs to EMHASS
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- Runs `dayahead-optim` → `publish-data`
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#### Verified working
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- `sensor.p_pv_forecast` — PV forecast (W)
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- `sensor.p_load_forecast` — Load forecast (W)
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- `sensor.p_grid_forecast` — Grid import forecast (W)
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- `sensor.soc_batt_forecast` — Target end-of-day SOC (%)
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- `sensor.unit_load_cost` — First-hour price from NordPool
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### Remaining / Future
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1. **Switch load sensor** — after `sensor.load_power_no_var_loads` accumulates 24h+ history, switch back for more accurate EV separation
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2. **OpenEVSE integration** — when charger is connected, add `number_of_deferrable_loads: 1` for smart EV charging
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3. **Legacy sensor cleanup** — remove unused `sensor.deye_*` duplicates from old configuration
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