Home assistant set up PV and heatpump

Here’s a step-by-step implementation plan with embedded procedures, tailored for your Portuguese stone house with GoodWe/Tesla/Daikin setup. I’ll structure this as a clear roadmap with dependencies marked:

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Phase 0: Pre-Implementation Audit (Day 1-2)

Objective: Establish baseline measurements

1. GoodWe System Verification

   • Procedure: Local API Connectivity Test

   telnet 192.168.x.x 8899  # Verify inverter port access

   • Question: Can you access the inverter’s web interface at http://[IP]?

2. Energy Flow Mapping

   # temporary sensors.yaml
   sensor:
     - platform: template
       sensors:
         total_consumption_estimate:
           value_template: >
             {{ states('sensor.goodwe_load_power')|float 
             + states('sensor.tesla_charging_power')|float
             + 500 }}  # Base load estimate

---

Phase 1: Core Monitoring (Day 3-5)

Objective: Real-time visibility

1. GoodWe Integration

   • Install HACS Component
   • GoodWe Configuration Guide

   # configuration.yaml
   goodwe:
     ip_address: !secret goodwe_ip
     battery_1:
       capacity: 15000
       chemistry: nmc

2. Basic Dashboard Setup

   # ui-lovelace.yaml
   cards:
     - type: energy-distribution
       entities:
         grid: sensor.goodwe_grid_power
         solar: sensor.goodwe_pv_power
         battery: sensor.goodwe_battery_power

   

---

Phase 2: Load Control (Day 6-10)

Objective: Strategic load shifting

1. Heat Pump Scheduling

   # automations.yaml
   - id: daikin_solar_optimization
     alias: "Daikin Solar-Powered Heating"
     trigger:
       - platform: numeric_state
         entity_id: sensor.goodwe_pv_power
         above: 2500
     action:
       - service: climate.set_temperature
         target:
           entity_id: climate.daikin_brp069a78
         data:
           temperature: "{{ states('sensor.outdoor_temp')|float + 10 }}"

2. Dehumidifier Optimization

   input_boolean:
     dehumidifier_season:
       name: "Wet Season Mode"
       initial: on  # Default for Portugal Oct-Apr
    
   automation:
     - id: dehumidifier_solar_control
       trigger:
         - platform: state
           entity_id: sensor.goodwe_battery_soc
           above: 50
       action:
         - service: switch.turn_on
           target:
             entity_id: switch.dehumidifier_*

---

Phase 3: Advanced Optimization (Day 11-14)

Objective: Automated cost savings

1. Gold Energy Tariff Integration

   rest_command:
     fetch_gold_energy_tariffs:
       url: "https://api.goldenergy.pt/public/v1/prices"
       method: GET
       headers:
         Accept: "application/json"

2. Bidirectional Meter Logic

   utility_meter:
     energy_export:
       source: sensor.goodwe_grid_power
       tariffs:
         - peak
         - off_peak

---

Phase 4: Off-Grid Preparation (Month 2-3)

Objective: Energy independence

1. Island Mode Configuration

   script:
     enable_island_mode:
       sequence:
         - service: goodwe.set_work_mode
           data:
             mode: "backup"
         - delay: "00:00:10"
         - service: switch.turn_off
           target:
             entity_id: switch.grid_tie

2. Thermal Mass Calculator

   # Developer Tools > Template
   {{ (12000 * 0.84 * (states('climate.daikin_brp069a78')|float - 15)) / 3600 }}
   # Returns kWh needed to heat stone mass

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Implementation Checklist

Task	Est. Time	Tools Needed	Dependency
GoodWe API Test	1h	Laptop, Network cable	None
Base Dashboard	2h	HACS	GoodWe online
Daikin Control	3h	ESPHome/Modbus	Heat pump model specs
Tariff Automation	4h	Gold Energy API key	Phase 1 complete

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Critical Questions Before Implementation

1. Electrical Safety:

   • Do you have access to your consumer unit to verify circuit breakers match your planned loads?
   • Should we include a step for verifying Schuko socket ratings before EV automation?

2. Data Validation:

   • Would you prefer to cross-validate GoodWe data with a Shelly EM before full automation?

3. Portuguese Compliance:

   • Does your installation need to follow ERSE’s new 2024 regulations for microgeneration?

4. Physical Access:

   • Can you safely access the Daikin BRP069A78’s wired controller for direct Modbus connection?

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Recommended Learning Resources

1. Portuguese Solar Forum
2. GoodWe NMC Battery Manual (PT)
3. Home Assistant Portugal Community

Would you like me to:

1. Provide wiring diagrams for your specific equipment?
2. Create a downloadable checklist with timestamps?
3. Focus first on the most urgent pain point (e.g., high winter bills)?