Energy cost-oriented production scheduling

Theme Production planning, Ecology
Project title Energy cost-oriented production scheduling (EnKoBel)
Project duration 01.08.2011 – 31.07.2013
Results
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Press release
The energy costs’ share in the total is increasing in producing companies. The electricity rate and the gas rate increased heavily in recent years and experts predict a similar trend for the future. Given that energy cannot or only marginally be replaced by other productive resources (e.g. human labour), manufacturing companies will be faced with increasing energy costs in the future. The target of this research project is the development of an approach for a production schedule based on energy costs, which equalizes the energy consumption over time. Simultaneously this approach shall include the logistical targets makespan, stock, job delays and workload. The reduction of energy costs does not have to result in deterioration of logistical targets, as it often was the case with previously used approaches. The approach based on an optimization problem, in which the prevention of job delays is secured as highest target and the energy costs are added to the constraints.

Publications about the project

The energy costs‘s share in the total is increasing in producing companies. Due to variations in the energy consumption over the day, arising power peaks lead to high energy costs. Power peaks could be reduced by load management systems. But these systems could have a negative impact on logistic performance figures. A simultaneous optimization of logistic performance figures and the energy consumption is not available yet. In this article a method for the energy cost-based production scheduling is presented. This method schedules jobs on machines in a way that the energy consumption is equalized and the logistic performance (makespan, stock, job delays, workload) is ensured.

energy costs, power peaks, production scheduling

The energy costs‘s share in the total is increasing in producing companies. Due to variations in the energy consumption over the day, arising power peaks lead to high energy costs. Power peaks could be reduced by load management systems. But these systems could have a negative impact on logistic performance figures. A simultaneous optimization of logistic performance figures and the energy consumption is not available yet. In this article a method for the energy cost-based production scheduling is presented. This method schedules jobs on machines in a way that the energy consumption is equalized and the logistic performance (makespan, stock, job delays, workload) is ensured.

energy costs, power peaks, production scheduling

The energy costs‘s share in the total is increasing in producing companies. Due to variations in the energy consumption over the day, arising power peaks lead to high energy costs. Power peaks could be reduced by load management systems. But these systems could have a negative impact on logistic performance figures. A simultaneous optimization of logistic performance figures and the energy consumption is not available yet. In this article a method for the energy cost-based production scheduling is presented. This method schedules jobs on machines in a way that the energy consumption is equalized and the logistic performance (makespan, stock, job delays, workload) is ensured.

energy costs, power peaks, production scheduling

In 2022 germanys last nuclear power plants will be shut down. In addition to the decision to phase out nuclear power a worldwide shortage of fossil fuels will lead to a steady rise in energy costs. Therefore the IPH develops procedures and methods, which will help companies to reduce their energy costs.

energy costs, occupancy plan, energy consumption

Sponsor

The IGF project 16904 N of the research association BVL was funded via the German Federation of Industrial Research Associations (AiF) in the programme of Industrial Collective Research (IGF) by the Federal Ministry for Economic Affairs and Energy (BMWi) based on a decision of the German Bundestag.

Partner

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