Hawaii Energy Incentivizes Courtyard Marriott Waikiki Beach with $119,836 for Energy Efficiency Efforts

Posted August 15, 2013

Public and private sector energy leaders joined Hawaii Energy, the energy efficiency and conservation program for Hawaii, Honolulu and Maui counties, today as the program presented Courtyard Marriott Waikiki Beach a $119,836 incentive check for several energy-saving installations completed this spring.

The installations include split air-conditioning systems, a Variable Frequency Drive (VFD) for the pool pump, Light-Emitting Diode (LED) lamps in guest corridors and guestroom air-conditioning energy management control systems. In total, all four projects are estimated to save the hotel approximately $190,000 in electricity costs and 620,555 kilowatt hours (kWh) per year.

“We applaud Marriott’s proactive approach to managing the hotel’s energy use,” said Ray Starling, Hawaii Energy Program Director. “With the completion of several projects, the Marriott has taken great strides toward energy efficiency. We encourage other hotels and businesses to consider participating in our incentive offerings.”

All of the 400 guestrooms in both Kuhio & Royal Hawaiian Towers have been retrofitted with integrated guestroom AC energy management systems, which sense the occupancy status of the room with a motion sensor. These systems allow the AC to be automatically turned off when the room is not occupied. A lanai door switch also turns off the AC unit when the door is open. The estimated savings of this retrofit is 321,965 kWh per year.

In addition, 313 old inefficient window AC units were removed from guestroom windows and replaced with 187 energy efficient 1-ton split AC systems and 126 smaller 9000-BTUH split systems. The estimated savings as a result of this project is 174,360 kWh per year.

The Marriott engineering team also completed installation of the following energy efficiency projects as well:

  • High performance and long lasting, MR16 LED lights to replace less efficient halogen lamps in the guestroom corridor area. Estimated savings of 120,861 kWh per year.
  • VFD for the pool pump. Estimated savings of 3,369 kWh per year.

*Estimated savings are based on a demand charge of $11.16 per kW per month, and electric rate of $0.288651 per kWh.