Results are in: green buildings save green

November 17, 2011

• Anne Haas, PNNL, (509) 375-3732

PNNL report for GSA finds green, federal buildings cost 19 percent less to maintain

WASHINGTON - In addition to emitting less carbon dioxide and using less water, sustainably designed federal buildings cost 19 percent less to maintain, according to a report by the D.O.E.'s Pacific Northwest National Laboratory. The results are included in a white paper recently released by the Government Services Administration, or GSA.

The GSA commissioned PNNL to conduct a post-occupancy evaluation of 22 "green" federal buildings from across the country. In the report, PNNL found that, on average, green buildings, compared to commercial buildings in general:

• Cost less to maintain, by 19 percent,
• Use less energy, by 25 percent, and less water, by eleven percent,
• Emit less carbon dioxide, by 34 percent, and
• Have more satisfied occupants, by 27 percent.

"To measure green building performance you must look at the building holistically, which includes the occupants and maintenance impacts in addition to the commonly targeted energy and water use," said Kim Fowler, a senior research engineer and buildings relationship manager at PNNL, who is lead author of the paper. "One can design and construct a building well, with the greenest of specifications, but if it's not operated well or isn't meeting the needs of the occupants, the grandest intents go out the operable window," she said.

The PNNL team conducted the analysis in 7 of GSA's national administrative regions to evaluate how well its sustainably designed buildings are performing in comparison to average commercial buildings and to GSA's baseline measurements of its sustainably constructed buildings. Researchers worked with building contacts to collect data from utility bills about energy and water use, maintenance and operations costs, and waste and recycling costs. They also conducted a survey to glean information about occupant commute and satisfaction. They then compared those results to national averages.

One of the buildings evaluated is the U.S. Courthouse in downtown Seattle. The courthouse has been deemed one of the safest structures ever built. In 2004 the courthouse won GSA's award for construction excellence. It features radiant floor heating, high efficient lighting, an energy management system, natural gas boiler and waterless urinals. PNNL's analysis found that, despite a slightly higher janitorial cost, the U.S. Courthouse's operating costs are 35 percent lower than the industry baseline.

PNNL has conducted similar evaluations on in excess of 50 federal buildings over the past 5 years for GSA, the D.O.E., Army, Navy and soon the Air Force. To read more visit the GSA's blog.

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Buildings Evaluated

East coast:

• Census Bureau Office Complex, Suitland, Md.
• SAMHSA Metropolitan Service Center, Rockville, Md.

Midwest:

• Rush H. Limbaugh U.S. Courthouse, Cape Girardeau, Mo.
• Carl T. Curtis NPS Midwest Regional Headquarters, Omaha, Neb.
• Davenport U.S. Courthouse, Davenport, Iowa
• Nathaniel R. Jones Federal Building and U.S. Courthouse, Youngstown, Ohio
• Howard M. Metzenbaum U.S. Courthouse, Cleveland, Ohio
• DHS Citizenship & Immigration Services, Omaha, Neb.

Mountain:

• Alfred A. Arraj U.S. Courthouse, Denver
• E.P.A. Region eight Headquarters, Denver
• Lloyd D. George U.S. Courthouse, Las Vegas
• DOT Colorado Field Office, Lakewood, Colo.
• Scowcroft IRS Utah Field Office, Ogden, Utah

Pacific Northwest:

• Auburn SSA Teleservice Center, Auburn, Wash.
• U.S. Courthouse, Seattle
• Wayne L. Morse U.S. Courthouse, Eugene, Ore.

Southeast:

• John J. Duncan Federal Building, Knoxville, Tenn.
• Chas E. Bennett Federal Building, Jacksonville, Fla.
• James H. Quillen U.S. Courthouse, Greeneville, N.C.

West coast:

• Robert E. Coyle U.S. Courthouse and Federal Building, Fresno, California
• San Francisco Federal Building, San Francisco
• Santa Ana Federal Building, Santa Ana, California

Tags: Energy, Energy Efficiency, Energy Conservation

Pacific Northwest National Lab is a D.O.E. Office of Science national Lab where interdisciplinary teams advance science and technology and deliver solutions to America's most intractable problems in energy, the environment and national security. PNNL employs 4,800 staff, has an yearly budget of nearly $1.1 billion, and has been managed by Ohio-based Battelle since the lab's inception in 1965. Follow PNNL on Facebook, LinkedIn and Twitter.

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