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Energy Consumption in the Service Sector

Project description:

The sectors of private households and services together require a share of 38% of the total end energy consumption in Austria (419 PJ). Whilst the end energy consumption of the private households sector is documented and recorded relatively well, there is little information and data available concerning the use of energy in commercial buildings. However, detailed and structured data regarding the energy use are an essential precondition in order to be able to draft energy-efficiency-related instruments, implement specific energy programs and evaluate the performance of energy-saving measures.
Within the project, the annual energy consumption of 12.000 firms engaged in the service sector is being monitored. These firms are forming the base for sector-specific benchmarks. In the process, information concerning the pattern of use was gathered and analyzed in three independent procedures (status quo analysis, energy audit analysis, smart meters analysis).
Within the scope of the project, specific values (kWh/m²) for heat and other expenditures were generated. Furthermore, data concerning reference planes and benchmarks were gathered. Based on the data collected, not only the overall consumption but also the pattern of use and utilized sources of energy therefore were defined.
Extrapolation shows an overall energy consumption of 102,2 PJ, which equals 9,1% of Austrian end energy consumption; 43,1% of which amount to electric energy.
„Shortcomings of information” in the field of energy consulting were displayed by the survey that was conducted simultaneously. For example, the amount of light flux was strongly underestimated. At the same time, energy-saving potentials of ventilating- and air-conditioning systems were set too low at 10 to 15%.
Some of the results rather indicate an underestimation of the amount of electric energy needed for water heating.
What is more, the extrapolation revealed deviating results regarding the energy balance. A reason for this could be an unclear definition of the service sector in the course of the study. This leads to an incomplete coverage of the sector. Nevertheless, the survey showed an about 30% higher score in the section of hospitality industry, while the results in retail industry remained slightly below previous calculations.


Georg Benke

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