
Pat Maher, senior v.p. of engineering for Washington-based Marriott International, said the company's commitment is nothing new.
Marriott became an Energy Star partner in 2001.
"We were benchmarking hotels and had a pretty good base of about 2,100 hotels," Maher said. "Every month we tracked energy consumption in electric, gas, water and sewer. Energy Star developed a database around those parameters."
He emphasized the importance of tracking consumption.
"You have to know where you are, what you can afford," Maher said. "You need to understand what's going on."

Maher, Marriott
Because Marriott was recognized as a partner of the year in 2005, there had to be continued success in order to receive the award again.

Brodsky, Energy Star
"No other approach to green building operations has such clear and proven benefit to guests, investors or the sustained value of capital assets," said Stuart Brodsky, national program manager, commercial property markets, Energy Star.
"Some of the information [Marriott] shared we look forward to integrating into every sector we work with," Brodsky said.
The company's retrocommissioning program, which began in 2005, sought to evaluate and establish a planning process to aid Marriott properties in becoming as energy efficient as possible, Maher said. "We took hotels that are 15 years or older and we gave them a tune-up. We put a team of engineers in to evaluate the hotel, look at energy and demand costs and identify control and maintenance problems."
The team looked at central plan equipment and developed plans to get the equipment to perform at peak efficiency.
In some cases, improvements in energy efficiency made buying new equipment more practical, Maher said.
A six-month relamping campaign was launched last year. In addition, Marriott completed a three-year program to replace 5,400 exterior neon/fluorescent signs with LED lighting.
According to Maher, the company uses ozone laundry systems when possible, but a new product from Ecolab, called Formula 1, that has a new chemistry, helped reduce the cycle times and amount of hot water needed.
"We used to run a 42- to 48-minute cycle," according to Maher. "We've got it down to 30 minutes."


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