Maturity status | Stable |
This article explains what scheduled charging is, how the it works, and how to configure it in the XENON Dashboard.
What is scheduled charging?
Scheduled charging lets operators configure a maximum power import limit for specific times of day. The limits are automatically applied by the EMS.
Scheduled charging is an extension of load management. The scheduled limit can only reduce the available charging power. If the scheduled limit is higher than any other limit applied to the system, the most constraining limit takes effect.
How does the scheduled power limit work?
The scheduled limit is applied as a total power limit. All EVCSs are controlled to ensure that the limit is respected.
Multiple schedules:
If multiple schedules are active at the same time, the lowest limit applies
Safety margin calculation:
When a schedule reduces the import limit, the safety margin is calculated to 10% of the scheduled limit
This prevents the margin from consuming a disproportionate share of the reduced limit
Example: a site that receives a 100 kVA scheduled limit will apply a 10 kVA margin, allowing up to 90 kVA total import power
Offline behavior:
If the gridBox loses connection to XENON, all previously fetched schedule intervals remain valid
By default, schedule intervals are fetched 14 days ahead
How do I configure scheduled charging?
In XENON, go to the Scheduled Charging tab for the site
Set the time window and the maximum power import limit for the schedule
Save the schedule
Once configured, all active and schedules are visible in the XENON Dashboard.
