Since July 2016, Green Key awarded Park Inn by Radisson Hotel Sofia (Bulgaria) is using only electricity, produced entirely by renewable, environmentally friendly energy sources.

The Agency of Sustainable Energy Development issued a certificate on the basis of guarantees of origin which was recently presented to the general manager of the hotel - Andrea Kaiser, by a representative of EnergoPro, the electricity supplier. EnergoPro is the only company in Bulgaria which could issue such certificate.

Besides using only energy, produced entirely from renewable sources, Park Inn Sofia is using LED lighting almost everywhere in the property. The hotel has installed motion sensors in corridors and at the back of house areas. Recently the solar-thermal installation on the roof of the hotel was renewed and upgraded so that it can function also in a winter mode.