Innovenergy_trunk/doc/controller_tests/Disconnect Grid Meter.md

# Disconnected Grid Meter

Initial State: Optimize Self-Consumption
Target State: Optimize Self-Consumption

Test Procedure

1. min SOC is set to be at 5% or more below the current SOC
2. Grid setpoint is set to 500W.
3. a load (min 1000W) is connected to the AC-Out side of the inverter.
4. The communications cable to the grid meter is disconnected to simulate a defect or missing grid meter
5. the load is disconnected from AC out
6. The communications cable to the grid meter is reconnected

Expected Outcome

• The system is initially in the Optimize Self-Consumption state
• It consumes ~500W from the grid, the the remainig power required by the load is sourced from the battery.
• Once the grid-meter is disconnected, the inverter no longer consumes power from the grid, and feeds the load from the battery exclusively.
• When the load is disconnected, the inverter goes to an idle state, energy flow to/from battery and grid should drop to almost 0W.
• Once the grid-meter is reconnected, the system charges the battery with ~500W AC.