The grid system, current and power limits are requested during the initial setup. You can later change them from the menu "Settings" in the commissioning interface.
Enter the nominal current of the main circuit breaker of the electrical installation.
Choose the appropriate grid system under "Grid system." You have the choice of:
Under "Allowed grid import power", enter the maximum power that may be taken from the grid.
This corresponds to an import limit.
Under "Allowed grid export power" enter the maximum power that may be fed back to the grid.
This corresponds to an export limit.
You can optionally enter a safety margin, under "Allowed grid export power safety margin" if desired.
"Three-phase delta 230V line-line" occurs only in certain geographical areas.
By default, this is set to 0.0 if you’re working in the cloud—meaning no extra buffer is added.
If you’re running outside of the cloud, a minimum safety margin of 1.5% is required.
The Grid Export Safety Margin is an optional extra buffer added to the maximum power your system can send back to the grid. It helps make sure you follow utility rules and accounts for small measurement errors.
By default, this safety margin is read from the system’s settings (called metadata).
This value is given in kilowatts (kW) and converted internally to watts (W).
If the system is not running in the cloud, a minimum safety margin is enforced to protect the grid.
To keep the electrical grid safe and stable, a minimum safety margin of 1.5% is always applied.
This margin is based on whichever power limit—import or export—is farthest from zero.
The export limit is then lowered by this margin to create a safety buffer.
This buffer prevents the system from running too close to the export limit, helping keep the grid reliable and safe.
| Parameter | Value |
|---|---|
| Import power limit | 10.0 kW |
| Export power limit | 10.0 kW |
| Standard safety margin | 0.0 kW |
| Minimum required margin | 1.5% of 10.0 kW = 0.15 kW |
| Adjusted export limit | 9.85 kW |
The advanced Grid power limits mode setting determines how the configured import and export limits are interpreted:
The separate Always treat the grid import power limit as instantaneous and Always treat the grid export power limit as instantaneous settings can keep either side instantaneous while the other side uses the fifteen-minute average.
Change these advanced settings only when the grid-connection requirements explicitly use quarter-hour averages. Instantaneous protection remains the safer default when there is any uncertainty.
Sometimes we need to deviate from the import or export powers on certain days or certain time of the days. This is can be enabled as followed: