"We can achieve the flexibility we need with the appropriate system technology but also with the control options we have in the ABB control system, that enables fast startup and shutdown of the co-generation plants," says Bachmann. "The power-to-heat plant converts current into district heating just like a giant immersion heater. The energy can then be stored in the heat storage, so that we can now take preferably renewable excess electricity of up to ten megawatts from the grid within only five minutes.
This allows us to operate our facilities optimally, regardless of the heat demand. Through the temporal independence of the district heat production and demand, electricity can be produced even if there is no demand for the high-efficiency cogeneration process heat by the customer. On the other hand, the heat supply is ensured even without production of electricity.
"Besides the technical integration of the new systems into the existing control system, we have a number of components supplied for the hydraulic part of the heat accumulator," says Frank Karliczek, Account Manager at ABB Process Automation. "This is a great example of good inter-divisional cooperation." In addition to drives for the pumps also flowmeters from ABB are used in the FHW Neukölln.