We recently obtained a bunch of information (7 megabytes worth) from the USGBC and GBCI covering all sorts of metrics about certified/registered projects such as state, project type, LEED product type (Core and Shell, Commercial Interiors, New Construction), LEED version, registration date (2000-2008), certified yes/no, certified date, etc.
The first visualization I could obtain without much effort is the number of LEED Accredited Professionals by state. California leads the nation with over 11,300 LEED APs. New York comes in second with over 4,900 LEED APs.
However, when I normalized the data to display number of LEED APs per million people (based on 2007 census information), the picture changes quite a bit.
Washington, DC has a small population, but a relatively large LEED AP population with almost 2,300 LEED APs for every million people. California, on the other hand has 311 for every million people. A couple of things come to mind for why DC is so high:
- The USGBC keeps its headquarters in Washington, DC. In 2006 they had 70 employees.
- Government LEED APs could skew the numbers. GSA, US Dept of Interior, lobbyists, etc.
- A number of large architecture firms have offices in Washington DC (Gensler, HOK, Perkins + Will, RTKL, URS, etc.)
For the rest of the data, I am going to try and take this slow and dig through over the next couple of weeks. I am interested to hear what type of charts you would like to see. Make sure to leave a comment and I will see what I can do.
Great Analysis here. I’m interested to see how these numbers change over the next 5 years with the new LEED system unrolling later this year.
Thanks
Aaron
http://www.LEEDLoop.com
“Where Green Building Professionals Compare Notes”
I’m a new LEED AP (I recommend Clean Edison Education Courses) in Texas so it is quite interesting to know that compared to other states, TX has relatively low numbers of LEED APs. Definitely room for improvement there, although I don’t mind not having so much competition.
Aaron and Jonsey,
Thanks for the comments. The new LEED system will be interesting to watch. The new tiers of accreditation, new systems, all very exciting.
The numbers did come out a little different than I expected. Oregon and Washington are relatively high, but Massachusetts as well.
More to come!
Is LEED a nationwide certification or is it done by state?
LEED is a nationwide program (international as well, I believe). The professional accreditation part is run by the Green Building Certification Institute (http://www.gbci.org), and the building certification side is run by the U.S. Green Building Council (http://www.usgbc.org). There are a other accreditation programs, but LEED seems to have really taken off in the U.S.
States are starting to adopt their own green building codes. More on that later…