Glossary#
Battery Full Date
Specific days of the month when the optimizer aims to charge the battery to 100% SOC. Provided as comma-separated values (e.g., '1, 15'). Enables periodic full charge cycles for battery health.
Correction Factor
A multiplier calculated over approximately one week of operation that corrects PV forecast values to match actual production, improving prediction accuracy.
DongleDirect
A connection method where the inverter's WiFi dongle is reconfigured to communicate directly with the GbbOptimizer server instead of the manufacturer's cloud.
Dynamic Discharge
An advanced discharge mode that adjusts battery output power in real time based on energy sell price changes, instead of using fixed time windows.
ESS
Victron's Energy Storage System module, managing battery charging and discharging as well as grid interaction.
FastSetup
A configuration process launched after creating a new installation. Sets basic parameters and establishes the initial connection with the inverter.
GbbConnect2
An application running locally (Windows or Docker) that connects the inverter directly to GbbOptimizer via ModbusInMqtt, bypassing cloud services such as Solarman.
GridSetpoint
Defines how much power should flow to/from the grid during normal operation. Positive values indicate grid import, negative values indicate grid export.
MaxSOC
The maximum SOC to which the optimizer will charge the battery. The recommended value is 90% to provide a buffer for PV forecast inaccuracies.
MinSOC
The minimum battery charge level maintained by the optimizer. The system prevents discharge below this threshold, protecting battery longevity.
Modbus
A serial communication protocol used for communicating with inverters. GbbConnect2 uses ModbusInMqtt to transmit Modbus commands within MQTT messages.
ModbusInMqtt
A protocol used by GbbConnect2, where Modbus register read/write commands are encapsulated in MQTT messages, enabling remote inverter control through the cloud.
PlantId
A unique string assigned to each installation registered in GbbOptimizer. Used as a prefix in all MQTT topics and for authentication.
PlantToken
A secret token generated for each installation, used as the MQTT password and for API authentication.
RTE
The ratio of energy delivered to energy consumed in a full charge and discharge cycle. Measures overall battery system efficiency, including conversion losses.
Self-Consumption
The share of generated solar energy that is directly consumed by the household rather than exported to the grid.
Self-Sufficiency
The share of total household energy consumption that is covered by the PV installation rather than imported from the grid.
SOC
State of Charge indicates the current energy level in the battery as a percentage from 0% (empty) to 100% (full).
SolarAssistant
A monitoring application that connects to inverters and publishes data via MQTT. Can serve as a bridge between Deye inverters and GbbOptimizer through Home Assistant.
Test Mode
The initial operating mode for new installations. The optimizer performs calculations and forecasts but does not send any commands to the inverter. Should remain active for about a week until the system calibrates.
VRM
Victron's cloud portal (VRM Portal) for remote monitoring and management of Victron systems.