Requirements and Economic Implications of Integrating a PV-Plant-Based Energy System in the Dairy Production Process

Author:

Höhendinger Martin12ORCID,Krieg Hans-Jürgen3,Dietrich Reinhard3,Rauscher Stefan3,Hartung Christina4,Stumpenhausen Jörn2,Bernhardt Heinz1ORCID

Affiliation:

1. Chair of Agricultural Systems Engineering, TUM School of Life Sciences, Technical University of Munich, Dürnast, 10, 85354 Freising, Germany

2. Department of Sustainable Agriculture and Energy Systems, University of Applied Sciences Weihenstephan-Triesdorf, Am Staudengarten, 1, 85354 Freising, Germany

3. BEDM GmbH, Arthur-Piechler-Str., 1i, 86316 Friedberg, Germany

4. Institute of Ecology and Landscape, University of Applied Sciences Weihenstephan-Triesdorf, Am Staudengarten 1, 85354 Freising, Germany

Abstract

To expand the potential of renewable energies, energy storage is required to level peaks in energy demand and supply. The aim of the present study was to examine and characterize the energy consumption of a milk production system to find possibilities and boundaries for a self-sufficient energy system. A detailed quantification of energy production of the test farm and the consumption of the milk production system showed, that the total energy production could cover the energy consumption of the production process. However, the temporal distribution of energy production and consumption requires energy storage in the production process. Though ice bank milk cooling and water heating have the potential to cover parts of this storage capacity, battery storage is mandatory to enable full autarky. The consideration of different seasons leads to different optimal dimensions of the energy system. The energy price is decisive for profitability, both in the purchase and in the sale. Smaller energy systems are generally at an advantage due to the higher self-consumption quota.

Funder

Federal Ministry of Food and Agriculture

Publisher

MDPI AG

Subject

Engineering (miscellaneous),Horticulture,Food Science,Agronomy and Crop Science

Reference50 articles.

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3. Pommer, R., Eckel, H., Hartmann, W., and Kämper, H. (2014). Energiebedarf in der Milchviehhaltung, Kuratorium für Technik und Bauwesen in der Landwirtschaft.

4. Automatic Milking Systems, Farm Size, and Milk Production;Rotz;J. Dairy Sci.,2003

5. Energy demand on dairy farms in Ireland;Upton;J. Dairy Sci.,2013

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