24/7 Energy Efficiency — How to Benefit from Energy Management

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Efficient Workflows Necessitate Transparency

Data acquisition in the energy management system is carried out at minute intervals. For this purpose, the system accesses the values in the control system. The current values are visualized at the averaged 15-minute interval also used by energy supply companies. This allows for a very precise recording of the energy procurement's load curves, which can be later used to positively influence the energy supply contracts.

Thomas Nahogyil, who is responsible for maintenance planning at InfraTec as well as for the new energy management system, reports: “B.Data now enables us to realize the transparency required for providing very detailed data on consumption structures for future energy quantity accounting and new investments.”

This means that electricity, steam, gas, nitrogen, well water, external water, cooling water and feed water for distributed steam generation are accounted on the basis of the exact consumption quantities. For this purpose, the customers domiciled in the industrial park are provided with energy balance files in Excel format which are directly calculated, generated and managed in the energy management system. “This significantly eases the handling of energy balancing”, states Nahogyil. Even though the companies were also provided with such data files in the past, these were prepared manually instead of automatically.

While all data in the process control system are overwritten cyclically in weekly intervals, the energy management system continuously saves all values — for up to ten years. As a result, an archive is established which represents a direct image of the energy efficiency. “In this context, the trend analysis functionality offered by the software is very valuable”, emphasizes Oehlandt.

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