By Christine Rosalin, Naval Facilities Engineering Command
PEARL HARBOR (NNS) -- Naval Facilities Engineering Command (NAVFAC) Pacific, in partnership with NAVFAC Hawaii and the National Renewable Energy Laboratory (NREL), was awarded the Advanced Rooftop Unit (RTU) Campaign (ARC) achievement award for energy improvements to facilities on Joint Base Pearl Harbor-Hickam (JBPHH) May 27.
The base was recognized for the highest number of advanced RTU control retrofits by a government organization, 30 advanced controls retrofits, with an estimated savings of 272,000 kilowatt-hours per year worth $116,000 annually.
"We are always looking for ways to conserve energy and to improve energy efficiencies," said NAVFAC Pacific Capital Improvements Director of Project Management Florence Ching. "Projects such as these keep us on a path towards reducing energy consumption to meet the Navy's energy goals."
The Variable Speed Drive Retrofit of Roof Top Air Conditioning Unit was one of eight technologies included in the Navy-funded partnership for Energy Pilot Program to advance energy-saving technologies in the military sector in Hawaii and Guam.
"It's all the professionals who participated in this project that made it a success," Ching said. "This was a great opportunity to strengthen the partnership between NREL, the NAVFAC commands in the Pacific and Joint Base Pearl Harbor-Hickam."
The project included retrofitting older, inefficient rooftop unit air conditioning systems and controls upgrades on rooftop buildings. Nine buildings on JBPHH were selected. Work began August 2011 and was completed in February 2014.
ARC is a national initiative to promote market adoption of high-efficiency rooftop unit air conditioners. By replacing RTUs more than 10-years-old with high-efficiency units and retrofitting other eligible RTUs to high-efficiency units with advanced controls, buildings can reduce annual cooling and ventilating energy consumption 20 to 50 percent and energy costs by up to $3,700 per RTU. Using national averages, this equates to a national savings potential of $6.7 billion dollars and 670 trillion Btu annually.