The objective was to create an overall energy efficiency model to inspire the service industry in general, but more specifically hotels and restaurants. The project, now completed, was conducted as a development and demonstration project as part of regular refurbishment activities at Stockholm’s Grand Hotel. In addition to demonstrating energy efficiency goals, the project developed and demonstrated new solutions for indoor climate control and energy efficient lighting. The goal was to achieve an 10% energy efficiency, or 1 GWh per year.
The project showed that it was possible to achieve large energy savings in the hotel business even in a sensitive, historic environment that is open 24/7 all the year round. lives around the clock. It requires good long-term planning to carry out energy efficiency measures during renovation and redevelopment. It was also found that the new LED lighting can be installed in existing old fixtures without loosing any aesthetic values. The interaction between the booking system and the indoor climate control system has proved to be very effective and could be introduced into similar businesses. Sust is now taking these experiences further in the EU-funded project “Nearly Zero Energy Hotels” being conducted from 2013-2015.