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Agri-Photovoltaics is a novel renewable energy technology. Amid rising climate change concerns, integrated photovoltaic systems are gaining in importance. Problems such as the increasing scarcity of land and the sealing of fertile soils are becoming more and more serious. Land consumption is often at the expense of agriculture. Farmers are struggling to cope with the ever more difficult conditions due to the effects of climate change. Therefore, the world must increasingly deal with dual use of land. However, especially in Germany the technology of agri-photovoltaics is not yet very advanced. The objective of this thesis is to identify the potential of this technology for the energy transition in Germany. Furthermore, the economic potential for regional farmers in Germany will be elaborated based on an investment appraisal of a vertical agri-photovoltaic system. The application possibilities of agri-photovoltaics are versatile. The work shows that already today farmers in Germany can diversify their income by investing in an agri-photovoltaic system. The costs are higher than for ordinary ground mounted systems, however the land can still be used for agricultural purposes. The investment calculation is carried out in different scenarios. Particularly, the remuneration per kWh as well as the discount factor are decisive for a positive net present value project. The results of this work show that the potential of agri photovoltaics is high for both the energy transition in Germany and the economic benefits for regional farmers. For an increasing expansion of the technology, more precise legislation and appropriate subsidies for agri-photovoltaics are needed.
Currently, the technology is insufficiently covered in German legislation, which needs to be addressed.
Shopping-trolleys being available, in working order and ready to use are the three decisive characteristics of successful shopping-trolley-management and accordingly concern the functional areas procurement, maintenance, cleaning (and ultimately disposal). This bachelor-thesis has been written in cooperation with Kaufland and describes the processes and costs of the shopping-trolley-management of Kaufland in the above named areas. Kaufland is a trading firm, which has been founded in Germany, has business operations in Central- and Eastern-Europe and is known especially for its self-service-stores named „Kaufland“. In these stores, with a retail area between 2000-12.000 m², customers can choose from a product range of up to 60.000 goods of the food- and non-food-area. The strategic coordination of the shopping-trolley-management is located in the department Branch-Equipment of the functional area Procurement International, which is responsible for product development, purchasing and standardization of the objects used to equip a store. The thesis is divided into two parts: At first the processes and costs of the shopping-trolley-management of Kaufland in Germany and in the KMO-countries (Kaufland Central- and Eastern-Europe) are presented. To record the processes and costs, face-to-face- and telephone-interviews were conducted and data were gathered in inquiry forms by mail. The results can be reviewed in written process descriptions and the completed inquiry forms. This section of the thesis is based on the theories of life-cycle-costing and concludes with a presentation of the „Best Practices“ of processes and the calculation of the life-cycle-costs of the Kaufland shopping-trolley-stock. The life-cycle-costs are calculated in the form of nominal- and present-values (discounted-values) taking into account the most important life cycle phases (procurement, maintenance, cleaning and disposal).
Next a leasing- and service-offer for the Kaufland shopping-trolley-stock, created by the Wanzl Metallwarenfabrik GmbH in cooperation with the Deutschen Leasing, is presented. The leasing part is viewed as an alternative to the current way of procuring shopping-trolleys, the service part is compared with the current service-processes and -costs of the shopping-trolleys. This section of the thesis is based on the leasing-, procurement-theory and economic efficiency calculations and concludes with an assessment of the given offer as well as a compilation and assessment of possible leasing-contract-alternatives. The used and given information originate from the literature reviewed, face-to-face- and telephone-interviews with the contact persons at the Wanzl Metallwarenfabrik GmbH and the Deutschen Leasing. The results show that the given leasing- and service-offer is not connected to process improvements and cost savings by Kaufland and should not be accepted, however the application of the described „Best Practices“ in all countries as well as the development of a new, flexible leasing-offer, taking into account the information about processes and costs obtained in this thesis, might very well be economically favorable.
The major objective of this thesis is to analyse the given investment incentives for renewable energies, especially for photovoltaics, in Germany and to make recommendations for potential investors who are willing to invest. For this reason the author decided to check the incentives for profitability.
In the first part, the origins of and present strategies for structural changes in the energy sector are explained. The fact is that global warming mainly is man-made. Green house gas emissions should be reduced by focusing on the expansion of renewable energies. The paper then identifies the provided investment incentives and further highlights the
advantageousness of each incentive. In a detailed central section the thesis examines six model calculations. The applied method to carry out a valuation of the investment is the net present value method. Payments-in and payments-out of the potential investment are compared and discounted to determine the net present value. The results of the calculations demonstrate that selling the generated electric power completely is uneconomically due to the declining feed-in compensation. The associated investment incentives were unable to improve the result. By contrast, private consumption of the generated electric energy is gaining in importance. Energy storage devices are installed and promoted correspondingly. Consequently, the provided investment incentives are profitable and favorable. On the basis of the results of these calculations, it can be concluded that the expansion of renewable energies is an ongoing process characterized by changes in the structure of provided investment incentives. These data support the view that in the future there is going to be a strong tendency to store the electric energy generated by renewable energies.