Marriott International Inc.

Energy Optimization Program for Marriott Hotels in Europe


Marriott has been a leader in the tourism industry for over 80 years. With nearly 3,900 hotels and 18 brands in 72 countries, Marriott is one of the largest hotel chains in the world.

Marriott International Inc.


The project covers 15 hotels. The goal is it to save energy and costs regarding water and electricity and to avoid unnecessary CO2 emissions without infringing on the comfort.


The program involves performing an onsite audit, determining individual measurement criteria and optimizing the building management systems and processes according to these criteria. Once the optimization work has been completed, Siemens energy experts will remotely monitor and optimize energy consumption data on an ongoing basis. Green Building Monitors will also be deployed, allowing employees and guests to view current energy consumption and thus raise their awareness of energy-efficient behavior. In 5 of the hotels, even more comprehensive measures with energy efficiency and performance contracting were implemented including energy efficiency services powered by the web-based service platform Navigator from Siemens. The cooperation is meanwhile extended to include different advisory services like the Energy Efficiency Directive (EED) Advisory services which will help them to fulfill the strict new regulations in Europe.


The Charles de Gaulle Airport Marriott Hotel in France piloted the energy efficiency project. With the help of Siemens this hotel was able to cut its energy costs by 15 percent as well as CO2 emissions also by 15 percent. In addition to the pilot project in Paris, Siemens implemented the program in 15 other European Marriott hotels. The potential savings are more than EUR 1 million per year and the overall investment is approximately EUR 3 million. That means an average payback time is less than 3 years which Marriott aims for.


  • Siemens is the perfect partner for energy efficiency programs and initiatives of any size and type of infrastructure

  • Greatest impact from energy efficiency through cutting edge technologies

  • Maximized operational cost reduction and conservation of resources at minimum payback periods

  • Siemens applies a standardized and proven approach to run efficiency programs across country boarders