124 Energy consumption of the RZB Group in MWh from 2012–2016 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0 2012 2013 2014 2015 2016 Central institute and specialized subsidiaries 2012 2013 2014 2015 2016 RBI AG 2012 2013 2014 2015 2016 CE 2012 2013 2014 2015 2016 SEE 2012 2013 2014 2015 2016 EE n External procurement of electricity n External procurement of heat Energy consumption in 2016 Central institute and RBI AG CE SEE EE specialized subsidiaries External procurement of electricity in MWh 3,796 9,391 19,712 23,765 19,863 External procurement of heat in MWh 2,014 5,768 5,242 6,172 8,093 Energy consumption total in MWh 5,908 15,158 24,953 29,937 27,956 Energy consumption at the Vienna sites The energy consumption figures at the Vienna sites (primarily for RBI AG) must be viewed in a differentiated manner. At the site in 1030 Vienna, the main building of which was opened in 1989, apart from being used as an office location, large areas are also available and used intensively for internal and external events (max. capacity of about 800 people, including hospitality). These areas are fully incorporated into the energy balance sheet and significantly increase both the absolute and the relative figures. The measures taken at this site in recent years focused on the reduction in power consumption by improving the heat exchangers (free cooling), the relocation of servers and measures relating to the IT terminal equipment (replacement with low-energy devices, sleep mode when not in use). Some of the lighting in the main building was converted to LEDs, while the energy supply for the refrigerated counters in the staff restaurant was optimized. The “R19” site in 1190 Vienna, which is a lowest-energy building, has significantly greater energy efficiency than the headquarters. Systems such as the air conditioning – powered by district cooling – are innovative. This reduces CO2 emissions by around 70 percent compared to conventional air conditioning systems. Gold standard LEED (Leadership in Energy and Environmental Design) awards were achieved for the newly purchased components at the new site. The first phase (buildings A&B) achieved a score of 60 out of a possible 110 points. For the second phase (building C), improvements in the planning resulted in a score of 67 out of 110 points. Overall, after the first full year of operation of the “R19” site, falling energy consumption can be seen at the Vienna sites compared to the previous year, both in terms of absolute power consumption (down 18 percent) and in terms of thermal energy (down 15 percent). Since January 2013, both sites (1030 and 1190) have been supplied solely with green electricity from small hydroelectric plants, wind power, biomass, geothermal energy and photovoltaics.
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