One of Boston’s most famous hotels is reaping the benefits of energy savings, as well as delivering on its commitment to protect the environment, thanks to a retrofit of energy efficient motors. Electronically commutated motors from Regal Beloit have been installed in over 800 rooms at the Westin Copley Place Hotel, saving over 400,000kW of energy.
A landmark on the Boston city skyline, the Westin Copley Place Hotel is one of the city’s most famous structures. Renowned for its plush rooms and outstanding facilities, the hotel is also committed to a wide range of environmental initiatives and energy saving strategies. The hotel is the recipient of the prestigious 4-Green Key eco rating Award, and one of four hotels in Massachusetts to be recognised as a Green Seal Certified Hotel for its work towards environmental responsibility.
As part of this ongoing commitment, the hotel’s engineering department looked at how it could reduce the energy usage in every room of the hotel, including the 803 guest rooms. It can be easy to overlook the small motors that are used, for example, in an individual room’s HVAC system, but the huge numbers of motors involved in a large commercial building mean that improving the energy efficiency of each one can have a big impact on overall energy consumption.
Researching the latest energy efficient motor solutions, the hotel’s engineering department found the electronically commutated motor (ECM) range from Regal Beloit. ECM motor technology is based on a brushless DC permanent magnet design that is inherently more efficient than the standard induction motors commonly found in air handlers, air conditioners and refrigeration applications. By combining electronic controls with brushless DC motors, ECMs can maintain efficiency across a wide range of operating speeds.
Regal Beloit is a leading manufacturer of electrical and mechanical motion control products, and the world’s second largest manufacturer of industrial electric motors, serving an expansive array of markets from heavy industry to high technology. With over 100 years of experience, the HVAC division of Regal Beloit is a leading supplier of electric motors into commercial, residential and industrial applications. The company has supported the HVAC industry with programmable, variable speed ECM technology since 1988, and because its versatility and efficiency, every major HVAC manufacturer in North America now includes Regal’s Genteq ECM technology in its product line.
Regal’s current ECM design is the seventh generation of the product. When the Westin engineering team investigated these motors, they found they were up to 80% more efficient than the existing motors used throughout the hotel, depending on the size of the motor and the size of the room in the facility. For a complete retrofit, this would mean energy savings of over 400,000kW per year.
Not only did this offer significant ongoing savings in running costs, it also meant saving the equivalent of 282 metric tonnes of CO2, whilst at the same time improving guest comfort. That made the retrofit a win-win project – good for the hotel, good for the guests and good for the environment.