Basic control systems include:
- Communication with the grid operator:
- Fluvius: IEC104
- Ores: Modbus RTU
- Sibelga: Modbus RTU
- Resa: 4-20mA
- Elia: 4-20mA è Pilot project with Elia via Engie is probably in the works to communicate with their cloud via IEC104
- DI/DO processing;
- Control PV/Wind/Battery via Modbus TCP + read in measured values (including combination of these things);
- Controlling CHP via 4-20mA or Modbus TCP;
- For Fluvius: reactive control on injection (measured at injection point);
- Priority rules (e.g. enabling older plants with green power certificates first è usually only controllable via ON/OFF, here optimisation is often not possible);
Additional options
- Injection limit:
- Can be fixed by e.g. an injection limit imposed by the grid operator
- Can be flexible by e.g. dynamic pricing (by requesting setpoints in the cloud)
- Load balancing (= off-take limiting) e.g. by controlling charge posts;
- Reactive regulation at offtake (to avoid penalties);Reactive control of different sub-installations at different injection points;
- Optimisation of priority rules by taking into account the current yield per plant section;
- Sending data to the cloud (via MQTT, API, …);
- Thermal buffering by e.g. additional heating of hot water in case of energy surplus;









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