The Green Scene: New Developments in LEED and Green Globes

New Developments in LEED and Green Globes

Robert Cassidy -- Building Design & Construction, 2/26/2007 12:00:00 AM

The U.S. Green Building Council, which is holding its fifth Greenbuild this month in Denver, is prospering—6,925 member companies enrolled, dozens of highly motivated chapters throughout the country, 4,213 projects registered under its LEED (Leadership in Energy and Environmental Design) rating program, 622 projects certified, and 27,000+ LEED Accredited Professionals.

Not to mention what's on the horizon—LEED for Homes (2007 release), LEED for Schools (early 2007), an application guide for healthcare (mid-2007), and the biggie, LEED Version 3.0 (whenever).

To get a feel for how the current version of LEED (2.2) is working, I recently attended a workshop conducted by five members of the extremely active USGBC Chicago chapter: Sanchin Anand, PE, an ME with dbHMS Consulting Engineers; mechanical engineer Heather Beaudoin and architect Rand Ekman of architecture firm OWP/P; architect Helen J. Kessler, FAIA, HJ Kessler Associates, and Erik Olsen, PE, who runs the green “fast-permit” program for the city of Chicago.

Highlights of LEED 2.2 improvements:

The new Adobe software and other online improvements have been a boon to Building Teams. “It makes the process transparent for the entire design team, and it saves paper,” says Kessler. Ekman says having everything online makes it easier for project reviewers like himself.

Version 2.2 updates credits to reflect the most current standard. For example, it leapfrogs ASHRAE 90.1-2001 and references 90.1-2004. “Much more up to date,” says Beaudoin.

Huge improvement over Version 2.1: separating design review from construction review. This gives Building Teams the option of submitting the project in the design phase (with roughly 60% of LEED credits) and following up later with construction documents. “This allows you to get a read on whether you've made the right decisions [in design] and can meet the requirements for certification” before the project is completed, says Ekman. “It's optional, but I think it's good.”

Version 2.2 is much more accurate, less ambiguous, and more up to date as to specific requirements than 2.1. “There's less guessing about what you have to do,” says Anand.

Some “true improvements” have been made to the requirements. SS Credit 2 (Development Density and Community Connectivity) defines “community” more clearly (“near a bank, stores, etc.”), which makes it much more workable. IEQ Credit 2 (Increased Ventilation) has been “vastly improved,” says Olsen. Previously, the credit referred to ASHRAE Standard 129, which is based on a laboratory test. Now, if you can show you're providing 30% more outdoor ventilation than required under ASHRAE, you get the credit. “The point of the credit is to get outside air in,” says Olsen.

There's a major shortcoming in 2.2, says Olsen—the lack of a requirement for projects to have a minimum level of energy savings over ASHRAE 90.1 (his suggestion: 20%), or a minimum number of points for energy optimization (his recommendation: 2). “I see numerous projects that get LEED certification but ignore energy credits,” he says.

After two hours, the panelists admitted they had just skimmed the surface of 2.2. Finally, I asked them, “Does 2.2 lead to 'better'—that is, more fully integrated—projects?”

Their conclusion: Version 2.2 doesn't guarantee integration, any more than 2.1 did. “There's no requirement, only the experience of veteran consultants who have done it a lot,” said Kessler.

Green Globes makes waves

Another rating program that has been gaining attention is Green Globes. This online, interactive rating system has been licensed by the Green Building Initiative, Portland, Ore., from BOMA Canada's Green Go Plus program.

In addition to its online capability (www.greenglobes.com), the program helps Building Teams make choices and decisions, based on a feedback mechanism. Green Globes requires integrated design, as well as on-site inspection for certification.

The Green Building Initiative has been named the Standards Development Organization for green building by the American National Standards Institute. GBI has created a technical committee to develop an ANSI standard for green building by 2008.

Canada recently certified its one hundredth project under BOMA Green Go Plus. In the U.S., Green Globes have been awarded to six projects:

Alberici Headquarters, a 110,000-sf office building in St. Louis (four Green Globes and LEED Platinum).

Pfizer Inc. CRU Building, a 62,500-sf research lab in New Haven, Conn. (three Green Globes).

Clinton Presidential Library, the 150,000-sf library/museum in Little Rock, Ark. (two Green Globes, LEED Silver).

Blakeley Hall, a 7,000-sf community center in Issaquah, Wash. (two).

Summit County (Colo.) Recovery Facility, a 19,000-sf recycling plant (two).

RenewAire LLC, a 37,000-sf office/manufacturing facility, Madison, Wis. (two).

LEED construction project statistics (as of 09/06)

	NC	EB	CI	CS	Total
Total certified projects	484	34	83	21	622
Total registered projects	3427	207	360	219	4213
Gross sf of registered projects (in millions)	386	56	17	48	507

LEED registered projects by building type
(for all LEED rating systems, as of 09/06)

Source: U.S. Green Building Council, October 2006
Commercial office	927
Higher education	346
Campus (corporate/university)	316
Multi-unit residential	219
K-12 schools	231
Retail stores	185
Public order/safety	181
Industrial	176
Community development	170
Library	142
Healthcare	132
Laboratory	128
Recreation	97

LEED-certified projects
(cumulative total by year)

					NC
EB					CI
CS					Total all LEED programs
2001	5	-	-	-	5
2002	38	-	-	-	38
2003	82	-	-	-	82
2004	167	15	21	-	203
2005	330	26	40	8	404
2006	484*	34*	83*	21*	622*

How LEED has grown
Cumulative gross sf under LEED registration (in millions)

		NC	EB	CI	CS
Total all					LEED programs
*As of 09/06
1999	1.1	-	-	-	1.1
2000	8.4	-	-	-	8.4
2001	16.8	-	-	-	16.8
2002	80	10	0.8	-	90.8
2006	114	14.5	3.7	-	162.2
2004	217	29	9	-	255
2005	338	50	13	-	401
2006	386*	56*	17*	48*	507*

Green Globes – Certified U.S. Projects

Project	Gross sf	Type of facility	Location	Number of Green Globes
RenewAire LLC	37,000	Office/manufacturing	Madison, Wis.	2
Summit County Recovery Facility	19,000	Recycling plant	Summit County, Colo.	2
Clinton Presidential Library	150,000	Library/museum	Little Rock, Ark.	2
Blakeley Hall	7,000	Community center	Issaquah, Wash.	2
Pfizer, Inc. CRU Building	62,500	Research lab	New Haven, Conn.	3
Alberici Headquarters	110,000	Office building	St. Louis, Mo.	4