Considering ever dwindling fossil fuel resources as well as alarming tendencies in global warming, companies face the increasing necessity to address alternative concepts of energy supply. Simultaneously, social and political pressure towards sustainable manufacturing grows continuously. Regarding these developments, decentralised (on-site) electricity generation from variable renewable energy sources, such as solar and wind resources, represents a promising alternative approach. Implemented along-side a combination of production planning and control (PPC) and energy management (EM) holds further potential. Previous publications however, lack an explicit focus on decentralised solutions and provide insufficient information about possible options of action. This research examines the effects of decentralised use of renewable power plants on PPC and explores their interaction by the development of a simulation-based planning tool. The first objective was to outline specific requirements for the joint implementation of EM/PPC-systems, which was followed by a description of existing solutions in this field, conducted by means of a systematic literature search. Subsequently, the second objective was to develop a practical simulation model which, applied to a specific case study, would support the further design of combined EM/PPC-systems. The key findings of this study suggest that based on flexible, energy-oriented production plans, companies can still meet competitive standards with respect to logistic and economic targets by exclusively relying on renewable on-site generation, whilst considerably reducing of CO2-emissions.