Remote power control (with HEMS)

Remote power control license

In addition to the grid operator, a third party (e.g. solar power trader/direct marketer) can also send power control setpoints. The blue'Log XC is compatible with several such third parties, and you can activate a separate, additional interface for "Remote power control (RPC)”.  The controller interprets the control signals of the third party and transfers them to the system. If the grid operator and third-party setpoints temporarily overlap, the lower setpoint is given priority. For more information, see License data sheet.

For third-party power control, we recommend using the blue'Log instead of an external PLC. This enables the blue'Log to record data from the grid operator and the third party separately. This is useful for example, when calculating yield losses due to power curtailments.

Activate remote power control

Prerequisites

• blue'Log XC with firmware ≥ 6.0.2

• A remote power control license is installed. See License data sheet.

• OpenVPN license is installed and OpenVPN is activated. See License data sheet and VPN connection.

Steps

1. Go to Power control > Active power > Active power management > Operation mode menu > Select Setpoint command.

2. Activate the Remote power control toggle. The Modbus parameters will appear.

3. The third party should now be able to carry out active power control.

4. Confirm that remote power control is active under Cockpit > System settings > Remote power control is active. Alternatively, check under System > VPN connection > Connection status.

If a third party is not able to carry out power control, check the following:

• The VPN connection to the third party is established

• There is no further access from a third party, e.g. via a VPN router or a device for energy trading (German e.g.: ”Steuerbox für Direktvermarktung”)

• The RPC toggle is activated

• All other RPC settings are configured correctly 

• If you require further assistance, contact Support