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Bosch Thermotechnika

Bulgaria: First Luxury Hotel in Sofia Heats Water with the Sun

Submitted by Baerbel Epp on November 4, 2013

Hilton Sofia has brought a large-scale solar thermal energy system into operation. The system, which consists of forty-five Bosch Solar 7000TF flat plate collectors on the roof of the building, heats 5,000 litres of the hotel‘s 8,000-litre demand per day. The big and modern hotel structure with 245 rooms, various restaurants and conference halls is located in the southern Sofia quarter of Losenets, at the bottom of the Vitosha Mountain, which peaks at 2,300 m. “We are directly in the corridor which brings fresh air from the mountains to the city, which is why we sometimes have quite heavy winds out here. So, we had to reinforce the aluminium pillars of the installation, in order to ensure the system’s safety even on windy days,” Valentin Vitkov explains. According to the Assistant Chief Engineer at Hilton Sofia, solar energy installations are rare in Bulgaria and municipal construction regulations are tough to comply with.
Photos Frank Stier

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