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NCIS: New Orleans (season 4)
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NCIS: New Orleans (season 4)
Season 4 U.S. DVD cover
Starring
Scott Bakula
Lucas Black
Vanessa Ferlito
Rob Kerkovich
Daryl "Chill" Mitchell
Shalita Grant
C. C. H. Pounder
Country of origin
United States
No. of episodes
24
Release
Original network
CBS
Original release
September 26, 2017 (2017-09-26) – May 15, 2018 (2018-05-15)
Season chronology
← Previous
Season 3
List of NCIS: New Orleans episodes
The fourth season of NCIS: New Orleans premiered on September 26, 2017 on CBS.[1] The series continues to air following Bull, Tuesday at 10:00 p.m. (ET) and contained 24 episodes.[2] The season concluded on May 15, 2018.[3]
Contents
1 Cast and characters
1.1 Main
1.2 Recurring
1.3 Guest appearances
2 Episodes
3 Production
3.1 Shalita Grant's departure
4 Ratings
5 References
6 External links
Cast and characters[edit]
Main[edit]
Scott Bakula as Dwayne Cassius Pride, NCIS Senior Special Agent (SSA) assigned to the New Orleans Office.
Lucas Black as Christopher LaSalle, NCIS Special Agent, second in command.
Shalita Grant as Sonja Percy, NCIS Special Agent, and former ATF Agent (Episodes 1–19).
Vanessa Ferlito as Tammy Gregorio, NCIS Special Agent, and former FBI Agent.
Rob Kerkovich as Sebastian Lund, NCIS Forensics Agent.
Daryl "Chill" Mitchell as Patton Plame, NCIS Computer Specialist.
C. C. H. Pounder as Loretta Wade, Jefferson Parish Medical Examiner for NCIS.
Recurring[edit]
Christopher Meyer as Danny Malloy, Loretta's elder foster son (C.J.'s brother)
Derek Webster as Raymond Isler, FBI Special Agent.
Chelsea Field as Rita Deveraux
Cassidy Freeman as Eva Azarova
Riann Steele as Sydney Halliday
Tom Arnold as Elvis Bertrand
Amanda Warren as Mayor Zahra Taylor
Guest appearances[edit]
Jimmy Buffett as himself
Episodes[edit]
No.
overall
No. in
season
Title
Directed by
Written by
Original air date
Prod.
code
U.S. viewers
(millions)
72
1 "Rogue Nation" James Hayman Brad Kern September 26, 2017 (2017-09-26) 401 8.78[4]
With Pride on Administrative Leave following Mayor Hamilton's take down, he is replaced by a by-the-book Supervisor Paula Boyd (Becky Ann Baker). Meanwhile, the NCIS team investigates a vehicular homicide involving stolen radioactive nuclear waste. Later on, they soon discover that the perpetrator is trying to make a dirty bomb.
73
2 "#1 Fan" Hart Bochner Zach Strauss October 3, 2017 (2017-10-03) 326 9.23[5]
While packing for a father/daughter fishing weekend, a mysterious woman (Dendrie Taylor) shows up at Pride's headquarters with intel about a serial killer targeting women at the Gulf of Mexico. Things take a dramatic turn when the woman kidnaps Pride to get him to listen to her.
74
3 "The Asset" Tony Wharmby Christopher Silber October 10, 2017 (2017-10-10) 402 9.52[6]
The team joins forces with FBI Director Isler after a Russian operative with intelligence on sleeper agents disappears; Tammy partners with former sleeper agent Eva Azarova to assist in the disappearance.
75
4 "Dead Man Calling" Tony Wharmby Christopher Silber October 17, 2017 (2017-10-17) 403 9.54[7]
Pride and his team investigate the murder of a Petty Officer at the scene of a 150-year-old cold case. Pride later thinks that this could be a copycat murder. Meanwhile, Gregorio reveals that she has a fear of ghosts when she discovers that the case is connected to a séance.
76
5 "Viral" LeVar Burton Chad Gomez Creasey October 24, 2017 (2017-10-24) 404 9.52[8]
Pride and his team help Sebastian out when he is put on administrative leave. When responding to a foot chase of a high value target that turns up dead and was shot from his gun.
77
6 "Acceptable Loss" Mary Lou Belli Brooke Roberts October 31, 2017 (2017-10-31) 405 8.86[9]
The team investigates the murder of a petty officer who was killed in a mysterious way. They soon struggle when finding evidence as the perpetrator covers their tracks. Meanwhile, LaSalle's father visits New Orleans to discuss taking over his family business.
78
7 "The Accident" LeVar Burton Ron McGee & Michael Gemballa November 7, 2017 (2017-11-07) 325 9.22[10]
Patton is forced to put himself into an uncomfortable situation by working with his ex-wife (Kelly Hu) when her clinical trial for injured veterans gets hacked by expert hackers.
79
8 "Sins of the Father" James Whitmore, Jr. Paul Guyot November 14, 2017 (2017-11-14) 406 9.67[11]
Wade's son Danny calls Pride for help after he is attacked at his girlfriend's house and she goes missing. The director of NCIS mandates that Pride meet with a therapist to discuss his process for solving cases.
80
9 "Hard Knock Life" Deborah Reinisch Talicia Raggs November 21, 2017 (2017-11-21) 407 7.99[12]
Pride second-guesses evidence suggesting homeless kids are the suspects in the murder of a petty officer.
81
10 "Mirror, Mirror" Geary McLeod Brad Kern & Lynne E. Litt December 12, 2017 (2017-12-12) 408 8.21[13]
Pride is livid when he finds out that ex-Mayor Hamilton is trying to make deals to get out of prison. The team race to find his partner involved to keep Hamilton in prison.
82
11 "Monster" Rob Greenlea Christopher Silber January 2, 2018 (2018-01-02) 409 9.10[14]
Pride is forced to put Percy on the sidelines when a case involving a high speed chase robbery turns deadly involves her former ATF partner.
83
12 "Identity Crisis" Gordon C. Lonsdale Taylor Streitz January 9, 2018 (2018-01-09) 410 8.70[15]
While Pride is away, Sebastian takes lead of the team and is dealt with a case that involves an old classmate being accused of murdering her business partner. Meanwhile, the NCIS headquarters computer system gets hacked by an expert hacker.
84
13 "Ties That Bind" James Hayman Ron McGee & Katherine Beattie January 23, 2018 (2018-01-23) 411 9.30[16]
Pride and his team investigate the murder of a petty officer who worked at a local night club bar that he and his mother use to play at weekly. Gregorio suspects it might be drug related. Meanwhile, LaSalle receives news that his father has passed away and he is the executor of his estate and his company.
85
14 "A New Dawn" Michael Zinberg Greta Heinemann February 6, 2018 (2018-02-06) 412 8.38[17]
It’s Mardi Gras in New Orleans and Pride’s team investigates the murder of a petty officer who was trying to help a family from being recruited to a terrorist group. Meanwhile, Wade helps incumbent Mayor of New Orleans campaign and special Election Day.
86
15 "The Last Mile" Stacey K. Black Chad Gomez Creasey February 27, 2018 (2018-02-27) 413 8.26[18]
FBI Agent Isler’s undercover assignment about opioids thefts goes sideways and asks Pride and his team for their help however off-the-books.
87
16 "Empathy" Tessa Blake Paul Guyot March 6, 2018 (2018-03-06) 414 8.44[19]
Pride and his team investigates the disappearance of a Congressional aide after she was ambushed by men posing as agents. Meanwhile, LaSalle makes difficult decisions on behave of his brother.
88
17 "Treasure Hunt" Tony Wharmby Brooke Roberts March 13, 2018 (2018-03-13) 415 9.25[20]
The team investigates the murder of a Navy captain and follow her footsteps along with her father in the search for a lost 200 year old fleur de lis.
89
18 "Welcome to the Jungle" James Whitmore, Jr. Christopher Silber & Austin Badgett March 27, 2018 (2018-03-27) 416 8.53[21]
Pride, Gregorio and Sebastian travel to South America to help out with one of Pride’s colleagues whose Army mission gets compromised. Meanwhile, Percy receives a job offer at the FBI and is hesitant to tell Pride.
90
19 "High Stakes" LeVar Burton Ron McGee April 3, 2018 (2018-04-03) 417 8.43[22]
Percy and LaSalle go undercover at a high-stakes, underground poker game after the organizer targets players with access to a naval research laboratory. Also, Laurel Pride (Shanley Caswell) visits her dad during spring break to discuss options after her upcoming graduation.
91
20 "Powder Keg" Mary Lou Belli Talicia Raggs April 17, 2018 (2018-04-17) 418 8.46[23]
Pride and his bar patrons, including Sydney Halliday (Riann Steele) who is visiting Pride after leaving the Army, are held hostage by a group of volatile thieves
92
21 "Mind Games" Gordon C. Lonsdale Greta Heinemann & Taylor Streitz May 1, 2018 (2018-05-01) 419 8.13[24]
The team investigates the brutal murder of a pilot, which bears a striking resemblance to a case used in Gregorio's profiling training and soon Gregorio discovers that her old professor is actually a serial killer - and that she is the next target.
93
22 "The Assassination of Dwayne Pride" Ed Ornelas Teleplay by: Ron McGee & Katherine Beattie
Story by: Chad Gomez Creasey & Katherine Beattie May 8, 2018 (2018-05-08) 420 8.11[25]
When a scathing article criticizing Pride's use of excessive force is published, the team gets concerned with the classified files used as sources and Rita returns to warn Pride that this is part of a plot to bring him and the NOLA NCIS office down.
94
23 "Checkmate, Part I" Jim Hayman Brad Kern May 15, 2018 (2018-05-15) 421 9.44[26]
As Pride faces an indictment for abuse of power and discovering the person behind it all, Pride recruits an off-the-books team to help him figure out why he's been targeted - and what the endgame is.
95
24 "Checkmate, Part II" James Whitmore, Jr. Christopher Silber May 15, 2018 (2018-05-15) 422 9.44[26]
The NCIS team races against time and a dangerous, well-connected opponent to prevent a terrorist attack on the New Orleans Tricentennial Fleet Week; LaSalle makes a shocking discovery about his family's business.
Production[edit]
Shalita Grant's departure[edit]
It was announced on January 31, 2018, that Shalita Grant who plays NCIS agent Sonja Percy would be departing the series after the nineteenth episode of the season. According to Grant and CBS, this decision is "mutual" and "amicable."[27]
Ratings[edit]
No.
Title
Air date
Rating/share
(18–49)
Viewers
(millions)
DVR
(18–49)
DVR viewers
(millions)
Total
(18–49)
Total viewers
(millions)
1 "Rogue Nation" September 26, 2017 1.0/4 8.78[4] 0.7 3.93 1.7 12.71[28]
2 "#1 Fan" October 3, 2017 1.0/4 9.23[5] N/A 3.45 N/A 12.69[29]
3 "The Asset" October 10, 2017 1.0/4 9.52[6] N/A 3.10 N/A 12.62[30]
4 "Dead Man Calling" October 17, 2017 1.1/4 9.54[7] 0.7 3.88 1.8 13.42[31]
5 "Viral" October 24, 2017 1.1/4 9.52[8] N/A 3.64 N/A 13.16[32]
6 "Acceptable Loss" October 31, 2017 0.9/4 8.86[9] 0.7 3.61 1.6 12.47[33]
7 "The Accident" November 7, 2017 1.0/4 9.22[10] 0.7 3.75 1.7 12.97[34]
8 "Sins of the Father" November 14, 2017 1.1/4 9.67[11] 0.7 3.62 1.8 13.32[35]
9 "Hard Knock Life" November 21, 2017 0.9/4 7.99[12] 0.7 3.49 1.6 11.49[36]
10 "Mirror, Mirror" December 12, 2017 0.9/3 8.21[13] N/A N/A N/A N/A
11 "Monster" January 2, 2018 1.0/4 9.10[14] N/A N/A N/A N/A
12 "Identity Crisis" January 9, 2018 1.0/4 8.70[15] 0.8 4.15 1.8 12.80[37]
13 "Ties That Bind" January 23, 2018 1.0/4 9.30[16] 0.8 4.31 1.8 13.62[38]
14 "A New Dawn" February 6, 2018 0.9/4 8.38[17] 0.7 4.17 1.6 12.55[39]
15 "The Last Mile" February 27, 2018 0.9/4 8.26[18] 0.8 4.35 1.7 12.62[40]
16 "Empathy" March 6, 2018 0.9/4 8.44[19] 0.7 4.29 1.6 12.73[41]
17 "Treasure Hunt" March 13, 2018 1.0/4 9.25[20] 0.7 3.95 1.7 13.20[42]
18 "Welcome to the Jungle" March 27, 2018 0.9/4 8.53[21] 0.8 4.18 1.7 12.71[43]
19 "High Stakes" April 3, 2018 0.9/4 8.43[22] 0.6 3.67 1.5 12.11[44]
20 "Powder Keg" April 17, 2018 0.8/3 8.46[23] 0.7 3.70 1.5 12.16[45]
21 "Mind Games" May 1, 2018 0.9/4 8.13[24] N/A 3.54 N/A 11.68[46]
22 "The Assassination of Dwayne Pride" May 8, 2018 0.8/3 8.11[25] N/A 3.42 N/A 11.56[47]
23 "Checkmate, Part I" May 15, 2018 0.9/4 9.44[26] TBD TBD TBD TBD
24 "Checkmate, Part II" May 15, 2018 0.9/4 9.44[26] TBD TBD TBD TBD
References[edit]
Jump up ^ Andreeva, Nellie (June 1, 2017). "CBS Sets Fall 2017 Premiere Dates for 'Young Sheldon', '9 JKL' & Returning Series". Deadline Hollywood. Retrieved June 1, 2017.
Jump up ^ "Development Update: Monday, November 6". The Futon Critic. Retrieved November 9, 2017.
Jump up ^ Pena, Jessica (March 22, 2018). "'Scorpion', 'Criminal Minds', 'MacGyver': CBS Announces (Series?) Finale Dates". TVseriesfinale.com. Retrieved March 22, 2018.
^ Jump up to: a b Porter, Rick (September 27, 2017). "'Bull,' 'Voice,' 'This Is Us' adjust up, 'L&O True Crime' and 'Brooklyn Nine-Nine' down: Tuesday final ratings". TV by the Numbers. Calabasas, California: Tribune Digital Ventures (sale to Sinclair Broadcast Group pending). Retrieved September 27, 2017.
^ Jump up to: a b Porter, Rick (October 4, 2017). "'Fresh Off the Boat,' 'Voice' adjust up, 'Brooklyn Nine-Nine,' 'L&O True Crime' adjust down: Tuesday final ratings". TV by the Numbers. Retrieved October 4, 2017.
^ Jump up to: a b Porter, Rick (October 11, 2017). "'Voice,' 'Flash,' 'Lethal Weapon' & 'The Mick' adjust up, 'NCIS: New Orleans' down: Tuesday final ratings". TV by the Numbers. Retrieved October 11, 2017.
^ Jump up to: a b Porter, Rick (October 18, 2017). "'NCIS,' 'Voice' and 'This Is Us' adjust up, 'Black-ish' and 'L&O True Crime' down: Tuesday final ratings". TV by the Numbers. Retrieved October 18, 2017.
^ Jump up to: a b Porter, Rick (October 25, 2017). "'This Is Us,' 'Fresh Off the Boat,' 'Kevin' & World Series adjust up, 'L&O True Crime' down: Tuesday final ratings". TV by the Numbers. Retrieved October 25, 2017.
^ Jump up to: a b Porter, Rick (November 1, 2017). "'The Middle' and World Series adjust up, 'Law & Order True Crime' down: Tuesday final ratings". TV by the Numbers. Retrieved November 1, 2017.
^ Jump up to: a b Porter, Rick (November 8, 2017). "'The Middle' adjusts up, 'The Mayor' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved November 8, 2017.
^ Jump up to: a b Porter, Rick (November 15, 2017). "'Fresh Off the Boat,' 'The Flash' and 'Kevin' adjust up, 'Bull' and 'L&O True Crime' adjust down: Tuesday final ratings". TV by the Numbers. Retrieved November 15, 2017.
^ Jump up to: a b Porter, Rick (November 22, 2017). "'Dancing With the Stars,' 'This Is Us,' all others hold: Tuesday final ratings". TV by the Numbers. Retrieved November 22, 2017.
^ Jump up to: a b Porter, Rick (December 13, 2017). "'The Voice,' 'Brooklyn Nine-Nine,' all others unchanged: Tuesday final ratings". TV by the Numbers. Retrieved December 13, 2017.
^ Jump up to: a b Porter, Rick (January 4, 2018). "'Bull' adjusts up: Tuesday final ratings". TV by the Numbers. Retrieved January 4, 2018.
^ Jump up to: a b Porter, Rick (January 10, 2018). "'Kevin (Probably) Saves the World' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved January 10, 2018.
^ Jump up to: a b Welch, Alex (January 24, 2018). "'LA to Vegas' and 'Bull' adjust down: Tuesday final ratings". TV by the Numbers. Retrieved January 24, 2018.
^ Jump up to: a b Porter, Rick (February 7, 2018). "'NCIS' and 'Bull' adjust up: Tuesday final ratings". TV by the Numbers. Retrieved February 7, 2018.
^ Jump up to: a b Porter, Rick (February 28, 2018). "'The Voice' and 'Kevin (Probably) Saves the World' adjust up: Tuesday final ratings". TV by the Numbers. Retrieved February 28, 2018.
^ Jump up to: a b Porter, Rick (March 7, 2018). "'This Is Us' adjusts up, 'Lethal Weapon' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved March 7, 2018.
^ Jump up to: a b Porter, Rick (March 14, 2018). "'This Is Us,' 'The Voice,' 'NCIS,' 'Black-ish' adjust up, 'Rise' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved March 14, 2018.
^ Jump up to: a b Porter, Rick (March 28, 2018). "'Roseanne,' 'The Voice' & 'The Mick' adjust up, 'Bull' and 'Splitting Up Together' down: Tuesday final ratings". TV by the Numbers. Retrieved March 28, 2018.
^ Jump up to: a b Porter, Rick (April 4, 2018). "'Rise' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved April 4, 2018.
^ Jump up to: a b Porter, Rick (April 18, 2018). "'NCIS,' 'Alex, Inc.,' 'Lethal Weapon,' 'The Flash' adjust up, 'For the People' down: Tuesday final ratings". TV by the Numbers. Retrieved April 18, 2018.
^ Jump up to: a b Porter, Rick (May 2, 2018). "'Roseanne' and 'Chicago Med' adjust up, 'The 100' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved May 2, 2018.
^ Jump up to: a b Porter, Rick (May 9, 2018). "'The Voice' and 'Chicago Med' adjust up, 'Bull' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved May 9, 2018.
^ Jump up to: a b c d Porter, Rick (May 16, 2018). "'The Middle,' 'NCIS,' 'Chicago Med' adjust up, 'The 100' adjusts down: Tuesday final ratings". TV by the Numbers. Retrieved May 16, 2018.
Jump up ^ "'NCIS: New Orleans' Actress Shalita Grant to Leave Show (EXCLUSIVE)". Variety. Retrieved February 8, 2018.
Jump up ^ Porter, Rick (October 13, 2017). "'This Is Us' and 'The Good Doctor' score big in premiere week broadcast Live +7 ratings". TV by the Numbers. Retrieved October 15, 2017.
Jump up ^ Porter, Rick (October 18, 2017). "'The Orville,' 'Once Upon a Time,' 5 more shows double in week 2 broadcast Live +7 ratings". TV by the Numbers.com. Retrieved October 18, 2017.
Jump up ^ Porter, Rick (October 25, 2017). "'The Good Doctor' is the most-watched show on TV in week 3 broadcast Live +7 ratings". TV by the Numbers. Retrieved October 25, 2017.
Jump up ^ Porter, Rick (November 2, 2017). "'Chicago PD,' 10 more shows double in week 4 broadcast Live +7 ratings". TV by the Numbers. Retrieved November 2, 2017.
Jump up ^ Porter, Rick (November 9, 2017). "'Grey's Anatomy' keeps rolling along in week 5 broadcast Live +7 ratings". TV by the Numbers. Retrieved November 11, 2017.
Jump up ^ Porter, Rick (November 17, 2017). "'This Is Us' and 12 more shows double in week 6 broadcast Live +7 ratings". TV by the Numbers. Retrieved November 18, 2017.
Jump up ^ Porter, Rick (November 27, 2017). "'This Is Us' rides high in week 7 broadcast Live +7 ratings". TV by the Numbers. Retrieved December 1, 2017.
Jump up ^ Porter, Rick (December 5, 2017). "'Jane the Virgin,' 10 other shows double in week 8 broadcast Live +7 ratings". TV by the Numbers. Retrieved December 5, 2017.
Jump up ^ Porter, Rick (December 6, 2017). "'Chicago Med' premiere makes solid gains in week 9 broadcast Live +7 ratings". TV by the Numbers. Retrieved December 6, 2017.
Jump up ^ Porter, Rick (January 26, 2018). "'The Brave' goes from low to... less low: Week 16 broadcast Live +7 ratings". TV by the Numbers. Retrieved January 26, 2018.
Jump up ^ Porter, Rick (February 8, 2018). "'This Is Us' sets NBC records in week 18 broadcast Live +7 ratings". TV by the Numbers. Retrieved February 22, 2018.
Jump up ^ Porter, Rick (February 22, 2018). "'The Good Doctor' and 'This Is Us' on top again: Week 20 broadcast Live +7 ratings". TV by the Numbers. Retrieved February 22, 2018.
Jump up ^ Porter, Rick (March 15, 2018). "'Agents of SHIELD,' 16 other shows double in week 23 broadcast Live +7 ratings". TV by the Numbers. Retrieved March 18, 2018.
Jump up ^ Porter, Rick (March 22, 2018). "'This Is Us' leads the week 24 broadcast Live +7 ratings – by quite a bit". TV by the Numbers. Retrieved March 22, 2018.
Jump up ^ Porter, Rick (March 29, 2018). "'This Is Us' goes out on top: Week 25 broadcast Live +7 ratings". TV by the Numbers. Retrieved April 5, 2018.
Jump up ^ Porter, Rick (April 11, 2018). "'Roseanne' premiere sets a record in week 27 broadcast Live +7 ratings". TV by the Numbers. Retrieved April 17, 2018.
Jump up ^ Porter, Rick (April 19, 2018). "'Will & Grace' finale, 11 other shows double in week 28 broadcast Live +7 ratings". TV by the Numbers. Retrieved April 24, 2018.
Jump up ^ Porter, Rick (May 7, 2018). "'Scandal' and 'Criminal Minds' get biggest finale bumps in week 30 broadcast Live +7 ratings". TV by the Numbers. Retrieved May 7, 2018.
Jump up ^ Otterson, Joe (May 21, 2018). "Delayed Viewing Ratings: 'Roseanne' Returns on Top". Variety. Retrieved May 24, 2018.
Jump up ^ Porter, Rick (May 24, 2018). "'Chicago PD' wins the Windy City battle in week 33's broadcast Live +7 ratings". Variety. Retrieved May 24, 2018.
External links[edit]
Official website
List of NCIS: New Orleans episodes on IMDb
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Leadership in Energy and Environmental Design
From Wikipedia, the free encyclopedia
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Tower at PNC Plaza in Pittsburgh, opened in October 2015, is the greenest Skyrise ever built and exceeds the current criteria for a LEED Platinum certified building.
The Gold and Platinum rating of David L. Lawrence Convention Center in Pittsburgh is the first convention center in the world to have such certifications.[1]
1225 Connecticut Avenue, in Washington, D.C., is the first redeveloped office building on the U.S. East Coast to receive LEED Platinum status.[2]
Phipps Conservatory & Botanical Gardens in Pittsburgh has multiple LEED certifications, including the world's only Platinum-certified greenhouse[3] and a Platinum-certified and net-zero energy Center for Sustainable Landscapes.[4]
The University of Texas at Dallas Student Services Building is the first academic building in Texas to receive LEED Platinum status.[5]
Shearer's Foods plant in Massillon, Ohio is the first food manufacturing plant to receive LEED Platinum status.[6]
Grapevines and photovoltaic panels (r.) rely on the sun at Cooper Vineyards in Louisa, Virginia, the first winery on the East Coast and the second in the country awarded the fourth and highest, Platinum certification by Leadership in Energy and Environmental Design (LEED)
Leadership in Energy and Environmental Design (LEED) is one of the most popular green building certification programs used worldwide.[7] Developed by the non-profit U.S. Green Building Council (USGBC) it includes a set of rating systems for the design, construction, operation, and maintenance of green buildings, homes, and neighborhoods[8] that aims to help building owners and operators be environmentally responsible and use resources efficiently.
Contents
[hide]
1 History
2 Rating systems
2.1 LEED 2009
2.1.1 Certification level
2.1.2 Goal of the credit system
2.1.3 Prerequisites
2.1.4 Credit weighting process
2.1.5 LEED for Homes
2.2 LEED 2014
2.3 LEED Canada
2.4 Process
2.4.1 LEED energy modeling
2.4.2 LEED for Homes Rating System
3 LEED Performance
3.1 Energy performance research
3.2 Water performance research
3.3 IEQ performance research
3.4 Sustainable sites research
3.5 Materials and resources research
3.6 Innovation in design research
3.7 Other related research notes
3.8 Directory of LEED-certified projects
4 Professional accreditation
5 Benefits and disadvantages
6 Incentive programs
7 Notable LEED buildings
8 Criticism
9 See also
10 References
10.1 Citations
10.2 Sources
11 External links
History[edit]
Development of LEED began in 1993, spearheaded by Natural Resources Defense Council (NRDC) senior scientist Robert K. Watson. As founding chairman of the LEED Steering Committee, Watson led a broad-based consensus process until 2007, bringing together non-profit organizations, government agencies, architects, engineers, developers, builders, product manufacturers and other industry leaders. The LEED initiative was supported by a strong USGBC Board of Directors, chaired by Steven Winter from 1999 to 2003, and very active staff, including Nigel Howard.[9] At that time, USGBC’s Senior Vice President of LEED, Scot Horst, became chair of the LEED Steering Committee before joining USGBC staff. Early LEED committee members also included USGBC co-founder Mike Italiano, architects Bill Reed and Sandy Mendler, builder Gerard Heiber and Myron Kibbe and engineer Richard Bourne. As interest in LEED grew, in 1996, engineers Tom Paladino and Lynn Barker co-chaired the newly formed LEED technical committee.
From 1994 to 2015, LEED grew from one standard for new construction to a comprehensive system of interrelated standards covering aspects from the design and construction to the maintenance and operation of buildings. LEED also has grown from six volunteers on one committee to 119,924 staff, volunteers and professionals.[10] LEED standards have been applied to approximately 83,452 registered and certified LEED projects worldwide, covering around 13.8 billion square feet (1.28 billion square meters).[11]
Many U.S. federal agencies and states and local governments require or reward LEED certification. However, four states (Alabama, Georgia, Maine, and Mississippi) have effectively banned the use of LEED in new public buildings, preferring other industry standards that the USGBC considers too lax.[12]
Unlike model building codes, such as the International Building Code, only members of the USGBC and specific "in-house" committees may add to, subtract from, or edit the standard, subject to an internal review process. Proposals to modify the LEED standards are offered and publicly reviewed by USGBC's member organizations, which number almost 12,216.[10]
USGBC's Green Business Certification Inc. (GBCI) offers various accreditation to people who demonstrate knowledge of the LEED rating system, including LEED Accredited Professional (LEED AP), LEED Green Associate,[13] and since 2011, LEED Fellows, the highest designation for LEED professionals. GBCI also certifies projects pursuing LEED.
Rating systems[edit]
LEED has evolved since 1998 to more accurately represent and incorporate emerging green building technologies. The pilot version, LEED New Construction (NC) v1.0, led to LEED NCv2.0, LEED NCv2.2 in 2005, and LEED 2009 (previously named LEED v3) in 2009. LEED v4 was introduced in November, 2013. Until October 31, 2016, new projects may choose between LEED 2009 and LEED v4. New projects registering after October 31, 2016 must use LEED v4.[14]
LEED 2009 encompasses ten rating systems for the design, construction and operation of buildings, homes and neighborhoods.[8] Five overarching categories correspond to the specialties available under the LEED professional program. That suite currently consists of:
Green Building Design & Construction
LEED for New Construction
LEED for Core & Shell
LEED for Schools
LEED for Retail: New Construction and Major Renovations
LEED for Healthcare
Green Interior Design & Construction
LEED for Commercial Interiors
LEED for Retail: Commercial Interiors
Green Building Operations & Maintenance
LEED for Existing Buildings: Operations & Maintenance
Green Neighborhood Development
LEED for Neighborhood Development[8]
Green Home Design and Construction
LEED for Homes (The LEED for Homes rating system is different from LEED v3, with different point categories and thresholds that reward efficient residential design.[citation needed])
LEED also forms the basis for other sustainability rating systems such as the Environmental Protection Agency's Labs21.
To make it easier to follow LEED requirements, in 2009 USGBC helped BuildingGreen develop LEEDuser, a guide to the LEED certification process and applying for LEED credits written by professionals in the field.[15]
LEED 2009[edit]
Abad Nucleus Mall, at Maradu, Kochi, is India's first LEED certified gold-rated green mall.
Taipei 101, the tallest and largest green building of LEED Platinum certification in the world since 2011.
After four years of development, aligning credits across all LEED rating systems and weighting credits based on environmental priority, USGBC launched LEED v3,[16] which consists of a new continuous development process, a new version of LEED Online, a revised third-party certification program and a new suite of rating systems known as LEED 2009.
Under LEED 2009, there are 100 possible base points distributed across six credit categories: "Sustainable Sites", "Water Efficiency", "Energy and Atmosphere", "Materials and Resources", "Indoor Environmental Quality", and "Innovation in Design". Up to 10 additional points may be earned: four additional points may be received for Regional Priority Credits, and six additional points for Innovation in Design (which includes exemplary performance credits for existing credit categories).
Certification level[edit]
Buildings can qualify for four levels of certification:
Certified: 40–49 points
Silver: 50-59 points
Gold: 60-79 points
Platinum: 80 points and above
Goal of the credit system[edit]
The LEED 2009 performance credit system aims to allocate points "based on the potential environmental impacts and human benefits of each credit." These are weighed using the environmental impact categories of the United States Environmental Protection Agency's Tools for the Reduction and Assessment of Chemical and Other Environmental Impacts (TRACI).[17] and the environmental-impact weighting scheme developed by the National Institute of Standards and Technology (NIST).
Prerequisites[edit]
To participate in LEED 2009, a building must comply with environmental laws and regulations, occupancy scenarios, building permanence and pre-rating completion, site boundaries and area-to-site ratios. Its owner must share data on the building's energy and water use for five years after occupancy (for new construction) or date of certification (for existing buildings).[18]
Each of the performance categories also have mandatory measures in each category, which receive no points.
Credit weighting process[edit]
The weighting process has three steps:[19]
A collection of reference buildings are used to estimate the environmental impacts of any building seeking LEED certification in a designated rating scheme.
NIST weightings are used to judge the relative importance of these impacts in each category.
Data regarding actual impacts on environmental and human health are used to assign points to individual categories and measures.
This system results in a weighted average for each rating scheme based upon actual impacts and the relative importance of those impacts to human health and environmental quality.
The LEED council also appears to have assigned credit and measure weighting based upon the market implications of point allocation.[19]
From 2010, buildings can use carbon offsets to achieve Green Power Credits for LEED-NC (New Construction Certification) :[20]
LEED for Homes[edit]
Additional performance categories in the LEED for Homes rating system are Locations and Linkages (recognizing the importance of transportation access, open space, and physical activity outdoors) and Awareness and Education (recognizing the need for buildings and settlements to educate occupants).
LEED 2014[edit]
For LEED BD+C v4 credit, the IEQ category addresses thermal, visual, and acoustic comfort as well as indoor air quality. The thermal comfort credit applies one point to the following certification types: New Construction, Schools, Retail, Data Centers, Warehouses and Distribution Centers, Hospitality, and Healthcare. The intent of this credit is to "promote occupants' productivity, comfort, and well-being by providing thermal comfort."[21] Occupants' satisfaction and performance is directly affected by a building's thermal conditions as shown by laboratory and field research.[22] Energy reduction goals can be supported while improving thermal satisfaction. For example, research has shown providing occupants control over the thermostat or operable window allows for comfort across a wider range of temperatures.[23][24]
LEED Canada[edit]
In 2003, the Canada Green Building Council received permission to create LEED Canada-NC v1.0, which was based upon LEED-NC 2.0.[25][26] Many buildings in Canada are LEED certified in part due to their Rainwater harvesting practices.
Process[edit]
LEED certification is granted by the Green Building Certification Institute (GBCI), which handles the third-party verification of a project's compliance with the LEED requirements.
The certification process for design teams is made up of two consecutive applications: one including design credits, and one including construction credits. All of the LEED credits in each rating system are assigned to either the design application or the construction application. The design credits include those that are the purview of the architect and the engineer, and are documented in the official construction drawings. The construction credits include those that are predominantly under the purview of the contractor, and are documented during the construction and commissioning of the building.
A fee is required to register the building, and to submit the design and construction applications. Total fees are assessed based on building area. Fees range from a minimum of $2,900 to over $1 million for a large project.[27] "Soft" costs, i.e., added costs to the building project to qualify for LEED certification, range from 1% to 6% of the total project cost. The average cost increase was about 2%, or an extra $3–$5 per square foot.[28]
The application review and certification process is handled on LEED Online, USGBC's web-based service that employs a series of active PDF forms to allow project teams to fill out credit forms and upload supporting documentation online. The GBCI also utilizes LEED Online to conduct their reviews.
LEED energy modeling[edit]
Design teams have the option of achieving points under the Optimize Energy Performance credit by building an energy model. This energy model must follow the modeling methodologies outlined in Appendix G of the ASHRAE 90.1 building energy standard. The guidelines in Appendix G require that the team make two energy models: one representing the building as designed, and a second “baseline” building. The baseline building must be modeled in the same location, and have the same geometry and occupancy as the design building. Depending on location (climate) and building size, the standard provides requirements for HVAC system type, and wall and window definitions. The goal of this methodology is to provide a baseline building to use as a reference point to compare the design building against. It is a way to standardize the baseline, while putting weight on important factors that heavily influence building energy consumption (e.g., location, geometry, and occupancy patterns). The number of points achieved in this credit is correlated with the percent predicted energy cost savings demonstrated by the difference between the design and baseline energy models.
This method of energy modeling has been criticized for inaccurately predicting actual energy usage of LEED-certified buildings. The USGBC admits that "current information indicates that most buildings do not perform as well as design metrics indicate. As a result, building owners might not obtain the benefits promised."[29]
LEED for Homes Rating System[edit]
Today, increasing demand towards environmental safety forces LEED certification to play major role. The process of the LEED for Homes Rating System, available in the USA,[30] Canada and Sweden,[31] is significantly different from the LEED NC rating system. LEED for Homes projects are low rise residential and are required to work with either an American Provider Organization[32] or a Canadian Provider Organization[33] and a Green Rater. A Provider Organization helps the project through the process while overseeing the Green Raters. Green Raters are individuals that conduct the two mandatory LEED for Homes site inspections; the Thermal Bypass Inspection and the Final Inspection. Although LEED for Homes is typically viewed by the construction industry as a simpler rating system, especially when compared to LEED NC, LEED NC does not require an on-site inspection. The Provider and the Green Rater do not certify the project, but rather assist in the certification process.
LEED Performance[edit]
Research papers provide most of what is known about the performance and effectiveness of LEED in two credit category areas – energy and indoor environment quality. In one study of 953 NYC office buildings, 21 LEED certified buildings collectively showed no energy savings compared with non-LEED buildings, although LEED Gold buildings "outperformed other NYC office buildings by 20%".[34] IEQ-related studies provide two contrasting results - the first used occupant survey results in 65 LEED buildings and 79 non-LEED buildings and it concluded that occupants of LEED certified buildings have equal satisfaction with the building overall and with the workspace than occupants of non-LEED rated buildings[35] and the second used occupant interviews and physical site measurements at 12 LEED buildings to report superior indoor environment performance compared with similar 12 conventional buildings (non-LEED).[36] Buildings certified under LEED do not have to prove energy or water efficiency in practice to receive LEED certification points, but instead LEED uses modeling software to predict future energy use based on intended use. This has led to criticism of LEED’s ability to accurately determine the efficiency of buildings. The USGBC itself says that, “Buildings have a poor track record for performing as predicted during design.[29]
Energy performance research[edit]
In 2009 Newsham et al. analyzed a database of 100 LEED certified (v3 or earlier version) buildings.[37] In this study, each building was paired with a conventional "twin" building within the Commercial Building Energy Consumption Survey (CBECS) database according to building type and occupancy.[37] On average, LEED buildings consumed 18 to 39% less energy per floor area than their conventional "twin" buildings, although 28 to 35% of LEED-certified buildings used more energy than their "twin.”[37] The paper found no correlation between the number of energy points achieved or LEED certification level and measured building performance.[37]
In 2009 Scofield published an article in response to Newsham et al., analyzing the same database of LEED buildings and arriving at different conclusions.[38] In his analysis, Scofield criticized that Newsham et al.'s study only considered the energy per floor area instead of a total energy consumption. Scofield considered source energy (accounting for energy losses during generation and transmission) as well as site energy site energy, and used area-weighted energy use intensities, or EUIs (energy per unit area per year), when comparing LEED and non-LEED buildings to account for the fact that larger buildings tend to have larger EUIs.[38] Scofield concluded that, collectively, the LEED-certified buildings showed no significant source energy consumption savings or greenhouse gas emission reductions when compared to non-LEED buildings, although they did consume 10-17% less site energy.[38]
Scofield in 2013 analyzed 21 LEED-certified buildings in New York City.[34] He found that buildings that had achieved LEED Gold used, on average, 20% less source energy than did conventional buildings. Buildings with LEED Silver or LEED Certified ratings actually used 11 to 15% more source energy, on average, than did their conventional counterparts.[34]
In 2014, Fuertes and Schiavon[39] developed the first study that analyzes plug loads using LEED documented data from certified projects. The study compared plug load assumptions made by 92 energy modeling practitioners against ASHRAE and Title 24 requirements, as well as, the evaluation of the plug loads calculation methodology used by 660 LEED-CI and 429 LEED-NC certified projects. In general, energy modelers considered the energy consumption of plug loads of equipment that are constantly running (such as refrigerators) as well as monitors and computes predictable. Overall the results suggested a disconnection between energy modelers assumptions and the actual performance of buildings. In conclusion, the study suggests LEED or ASHRAE to develop guidelines for plug loads calculations.
Energy model might be a source of error during LEED design phase. Stoppel and Leite[40] evaluated the predicted and actual energy consumption of two twin buildings using the energy model during the LEED design phase and the utility meter data after one year of occupancy. The study’s results suggests that mechanical systems turnover and occupancy assumptions significantly differing from predicted to actual values.
Most of the current available energy consumption analysis of LEED buildings focus on LEED v3 (2009) or even earlier versions certified buildings instead of the newest LEED v4 (2014) certified buildings. According to Newsham et al., these analysis should be considered as preliminary and should be repeated with longer data history and larger sample buildings,[37] including new LEED v4 certified buildings. Newsham et al. also pointed out that further work needs to be done to define green building rating schemes to ensure more consistent and substantial energy consumption reduction success at the individual building level in long term.[37]
Water performance research[edit]
This section needs expansion. You can help by adding to it. (December 2015)
IEQ performance research[edit]
The Center for Disease Control defines Indoor Environmental Quality (IEQ) as "the quality of a building’s environment in relation to the health and wellbeing of those who occupy space within it."[41] The USGBC includes the following considerations for attaining IEQ credits: indoor air quality, the level of volatile organic compounds, lighting, thermal comfort, and daylighting and views. In consideration of a building's indoor environmental quality, published studies have also included factors such as: acoustics, building cleanliness and maintenance, colors and textures, workstation size, ceiling height, window access and shading, surface finishes, and furniture adjustability and comfort.[35][36]
In 2013, a paper published by S. Schiavon and S. Altomonte studied LEED verses non-LEED buildings in relation to occupant IEQ satisfaction.[35] Using occupant surveys from the Center for the Built Environment at Berkeley database,[42] 65 LEED-certified and 79 non-LEED buildings were studied to provide an analysis of 15 IEQ-related factors in the overall building and specific workspaces. These factors include the ease of interaction, building cleanliness, the comfort of furnishing, the amount of light, building maintenance, colors and textures, workplace cleanliness, the amount of space, furniture adjustability, visual comfort, air quality, visual privacy, noise, temperature, and sound privacy. The results showed occupants tend to be slightly more satisfied in LEED buildings for the air quality and slightly more dissatisfied with the amount of light. The overall finding was that there was no significant influence of LEED certification on occupant satisfaction in consideration of the overall building and workspace ratings.[35] The "Limitations and Further Studies" section states that the data may not be representative of the entire building stock and a randomized approach was not used in the data assessment.
Based on similar dataset (21,477 occupants), in 2013, Schiavon and Altomonte,[43] found that occupants have equivalent satisfaction levels in LEED and non-LEED buildings when evaluated independently from the following nine factors: (1) office type, (2) spatial layout, (3) distance from windows, (4) building size, (5) gender, (6) age, (7) type of work, (8) time at workspace, and (9) weekly working hours. LEED certified buildings may provide higher satisfaction in open spaces than in enclosed offices, in smaller buildings than in larger buildings, and to occupants having spent less than one year in their workspaces rather than to those who have used their workspace longer. The study also points out that the positive value of LEED certification from the aspect of occupant satisfaction may tend to decrease with time.
In 2015, a study on indoor environmental quality and the potential health benefits of green certified buildings was developed by Allen et al.[44] showing that green buildings provide better indoor environmental quality with direct benefits to human health of occupants of those buildings in comparison to non-green buildings. One of the limitations of the study was the use of subjective health performance indicators since there is a lack of definition on such indicators by current studies.
G. Newsham et al. published a detailed study on IEQ and LEED buildings in August 2013.[36] Field studies and Post-Occupancy Evaluations (POE) were performed in 12 “green” and 12 “conventional” buildings across Canada and the northern United States. On-site, 974 workstations were measured for thermal conditions, air quality, acoustics, lighting, workstation size, ceiling height, window access and shading, and surface finishes. Responses were positive in the areas of environmental satisfaction, satisfaction with thermal conditions, satisfaction with view from the outside, aesthetic appearance, reduced disturbance from heating, ventilation and air-conditioning noise, workplace image, night-time sleep quality, mood, physical symptoms, and reduced number of airborne particulates. The results showed green buildings exhibited superior performance compared with similar conventional buildings.[36]
Current latest study published in 2017, by Altomonte, Schiavon, Kent and Brager, specifically investigated whether a green rating leads to higher occupant satisfaction with IEQ.[45] Based on the analysis of a subset of the CBE Occupant IEQ including 11,243 responses from 93 LEED-certified office buildings, this study found that the achievement of a specific IEQ credit did not substantially increase the satisfaction with the corresponding IEQ factor. In addition, the rating level and version of the certification has no impact on workplace satisfaction. There are some possible explanations. Many intervening factors in the time between design and occupancy can alter the existence or performance of the strategies that LEED awarded. IEQ certification metrics also face the challenges from substantial differences that characterize the modern workplace in terms of spatial needs, task requirements, users’ characteristics, and disciplines of product design and marketing, etc. Survey participants may also misinterpret the satisfaction with an IEQ parameter, or bias with personal attitudes.[45]
The daylight credit was updated in LEED v4 to include a simulation option for daylight analysis that uses Spatial Daylight Autonomy (SDA) and Annual Sunlight Exposure (ASE) metrics to evaluate daylight quality in LEED projects. SDA is a metric that measures the annual sufficiency of daylight levels in interior spaces and ASE describes the potential for visual discomfort by direct sunlight and glare. These metrics are approved by IES and described at the LM-83-12 standard.[46] LEED recommend a minimum of 300 lux for at least 50% of total occupied hours of the year for 55% or more square meters (square feet) of the floor occupied area. The threshold recommended by LEED for ASE is that no more than 10% of regularly occupied floor area can be exposed to more than 1000 lux of direct sunlight for more than 250 hours per year. Additionally, LEED requires window shades to be closed when more than 2% of a space is subject to direct sunlight above 1000 lux. According to Reinhart[47] the direct sunlight requirement is a very stringent approach that can disable good daylight design from achieving this credit. Reinhart propose the application of the direct sunlight criterion only in spaces that require stringent control of sunlight (e.g. desks, white boards and etc.).
Sustainable sites research[edit]
This section needs expansion. You can help by adding to it. (November 2014)
Materials and resources research[edit]
This section needs expansion. You can help by adding to it. (November 2014)
Innovation in design research[edit]
This section needs expansion. You can help by adding to it. (November 2014)
Other related research notes[edit]
A 2003 analysis of the savings from green building found from a review of 60 LEED buildings that the buildings were, on average, 25-30% more energy efficient. However, it also attributed substantial benefits to the increased productivity from the better ventilation, temperature control, lighting control, and reduced indoor air pollution.[48]
As of 2008, LEED (and similar Energy Star) buildings had mostly been evaluated by case studies. From a purely financial perspective, in 2008 several studies found that LEED for-rent office spaces generally charged higher rent and had higher occupancy rates. CoStar collects data on properties. The extra cost for the minimum benefit has been estimated at 3%, with an additional 2.5% for silver.[49] More recent studies have confirmed these earlier findings in that certified buildings achieve significantly higher rents, sale prices and occupancy rates as well as lower capitalization rates potentially reflecting lower investment risk.[50][51][52]
LEED focuses on the design of the building and not on its actual energy consumption, and therefore it has suggested that LEED buildings should be tracked to discover whether the potential energy savings from the design are being used in practice.[53]
Directory of LEED-certified projects[edit]
The U.S. Green Building Council provides an online directory of U.S. LEED-certified projects.[10]
The Canada Green Building Council provides an online directory[54] of LEED Canada-certified projects.
In 2012 the USGBC launched GBIG, the Green Building Information Gateway,[55] in an effort to connect green building efforts and projects from all over the world. It provides searchable access to a database of activities, buildings, places and collections of green building-related information from many sources and programs, as well as, specifically provides information about LEED projects.
Professional accreditation[edit]
The Green Building Certification Institute describes Professional Accreditation as follows: "LEED Professional Credentials demonstrate current knowledge of green building technologies, best practices, and the rapidly evolving LEED Rating Systems. They show differentiation in a growing and competitive industry, and they allow for varied levels of specialization. A LEED Professional Credential provides employers, policymakers, and other stakeholders with assurances of an individual's level of competence and is the mark of the most qualified, educated, and influential green building professionals in the marketplace."[56] Credentials include the LEED Green Associate and the various types of specialized LEED Accredited Professionals (AP).
Benefits and disadvantages[edit]
Real estate developers have begun to use LEED certification and a building's green status as selling points
LEED certified buildings are intended to use resources more efficiently when compared to conventional buildings simply built to code. However, analysis of energy and water use data from New York City shows that LEED certification does not necessarily make a building more energy or water efficient.[57]
Often, when a LEED rating is pursued, the cost of initial design and construction rises. There may be a lack of abundant availability of manufactured building components that meet LEED specifications. Pursuing LEED certification for a project is an added cost in itself as well. This added cost comes in the form of USGBC correspondence, LEED design-aide consultants, and the hiring of the required Commissioning Authority (CxA)—all of which would not necessarily be included in an environmentally responsible project, unless it also sought a LEED rating.[citation needed]
However, these higher initial costs can be effectively mitigated by the savings incurred over time due to the lower-than-industry-standard operational costs typical of a LEED certified building. This Life cycle costing is a method for assessing the total cost of ownership, taking into account all costs of acquiring, owning and operating, and the eventual disposal of a building. Additional economic payback may come in the form of employee productivity gains incurred as a result of working in a healthier environment. Studies suggest that an initial up-front investment of 2% extra yields over ten times that initial investment over the life cycle of the building.[58]
Further, the USGBC has stated support for the Architecture 2030, an effort that has set a goal of using no fossil-fuel, greenhouse-gas-emitting energy to operate by 2030.[59]
In the progression of sustainable design from simply meeting local buildings codes to USGBC LEED[60] (Certified, Silver, Gold and Platinum) to the Architecture 2030 Challenge,[61] the Living Building Challenge is currently the most stringent sustainable design protocol. The LBC[62] sets 20 imperatives that compel building owners, designers, operators and tenants beyond current USGBC[63] LEED rating levels.
LEED is a design tool and not a performance measurement tool. It is also not yet climate-specific, although the newest version hopes to address this weakness partially. Because of this, designers may make materials or design choices that garner a LEED point, even though they may not be the most site- or climate-appropriate choice available. On top of this, LEED is also not energy-specific. Since it only measures the overall performances, builders are free to choose how to achieve points under various categories. A USA TODAY review showed that 7,100 certified commercial building projects targeted easy and cheap green points, such as creating healthy spaces and providing educational displays in the building.[64] Few builders would really adopt renewable energy because the generators for those energy resources, such as solar photovoltaic, are costly. Builders game the rating system and use certain performances to compensate for the others, making energy conservation the weakest part in the overall evaluation.
LEED is a measurement tool for green building in the United States and it is developed and continuously modified by workers in the green building industry, especially in the ten largest metro areas in the U.S.; however, LEED certified buildings have been slower to penetrate small and mid-major markets.[65] Also, some criticism suggests that the LEED rating system is not sensitive and does not vary enough with regard to local environmental conditions. For instance, a building in Maine would receive the same credit as a building in Arizona for water conservation, though the principle is more important in the latter case. Another complaint is that its certification costs require money that could be used to make the building in question even more sustainable. Many critics have noted that compliance and certification costs have grown faster than staff support from the USGBC.
For existing buildings LEED has developed LEED-EB. Research has demonstrated that buildings that can achieve LEED-EB equivalencies can generate a tremendous ROI[citation needed]. In a 2008 white paper by the Leonardo Academy comparing LEED-EB buildings vs. data from BOMA's Experience Exchange Report 2007 demonstrated LEED-EB certified buildings achieved superior operating cost savings in 63% of the buildings surveyed ranging from $4.94 to $15.59 per square foot of floor space, with an average valuation of $6.68 and a median valuation of $6.07.[66]
In addition the overall cost of LEED-EB implementation and certification ranged from $0.00 to $6.46 per square foot of floor space, with an average of $2.43 per square foot demonstrating that implementation is not expensive, especially in comparison to cost savings. These costs should be significantly reduced if automation and technology are integrated into the implementation.
Incentive programs[edit]
Many federal, state, and local governments and school districts have adopted various types of LEED initiatives and incentives. A full listing of government and school LEED initiatives can be found online[67] and is updated regularly.
Some areas have implemented or are considering incentives for LEED-certified buildings.
The city of Cincinnati, Ohio adopted a measure providing an automatic 100% real property tax exemption of the assessed property value for newly constructed or rehabilitated commercial or residential properties that earn a minimum of LEED Certified.[68]
In the state of Nevada, construction materials for a qualifying LEED building are exempt from local taxes. Pieces of construction that are deemed "inseparable" parts, such as concrete or drywall, qualify.
The state of Maryland passed its High Performance Buildings Act in 2008, requiring all new public construction and renovation of buildings greater than 7,500 square feet to meet at least the LEED Silver standard, or two Green Globes. Between 2009 and 2014, the state is required to fund half of the required additional cost for public school construction or renovation to attain that standard.[69]
The state of Michigan is considering tax-based incentives for LEED buildings.[70]
Many local governments have adopted LEED incentive programs. Program incentives include tax credits, tax breaks, density bonuses, reduced fees, priority or expedited permitting, free or reduced-cost technical assistance, grants and low-interest loans.[71]
In June 2013, the USGBC announced a program called LEED Earth that refunds LEED certification fees to the first LEED-certified project in the countries that so far lack one.[72][73]
Notable LEED buildings[edit]
Sota Construction Corporate Headquarters in Pittsburgh earned LEED Platinum in 2012.
The Philip Merrill Environmental Center is recognized as one of the "greenest" buildings ever constructed in the United States at the time when it was built. Sustainability issues ranging from energy use to material selection were given serious consideration throughout design and construction of this facility. It was the first building to receive a Platinum rating through the U.S. Green Building Council's LEED Rating System, version 1.0.[74]
When it opened in 2003, Pittsburgh's 1,500,000-square-foot (140,000 m2) David L. Lawrence Convention Center was the first Gold LEED-certified convention center and largest "green" building in the world.[75] The convention center subsequently earned Platinum certification in 2012, becoming the only convention center in the world with certifications for both the original building and new construction.[1] In October 2011 Apogee Stadium on the campus of the University of North Texas became the first newly built stadium in the country to achieve Platinum-level certification. In Pittsburgh, Phipps Conservatory & Botanical Gardens visitors center has received a Silver certification,[76] its Center for Sustainable Landscapes has received a Platinum certification along with fulfilling the Living Building Challenge for net-zero energy,[4] and its greenhouse production facility has received Platinum certification, the first and only greenhouse so certified.[3] Also in Pittsburgh, Sota Construction Services completed construction on its new 7,500 sq. ft. corporate headquarters,[77] which features a super-efficient thermal envelope using cob walls, along with other energy-saving features like a geothermal well, radiant heat flooring, roof-mounted solar panel array, and daylighting features. It earned a LEED Platinum rating in 2012 and received one of the highest scores by percentage of total points earned in any LEED category, making it the "greenest" building in Pennsylvania and in the top ten greenest in the world.[78]
Around 2009–2010, the Empire State Building was undergoing a $550 million renovation, with $120 million spent in an effort to transform the building into a more energy efficient and eco-friendly structure.[79] Receiving a gold LEED rating in September 2011, the Empire State Building was at the time the tallest LEED-certified building in the United States.[80]
The Coastal Maine Botanical Gardens Bosarge Family Education Center completed in 2011 achieved LEED Platinum certification and has become known as Maine's "greenest building."[81]
In May 2012, Soldier Field in Chicago became the first National Football League stadium certified LEED.[82]
In 2013, naked Stables Resort in Moganshan, China[83][better source needed] became the first LEED Platinum certified resort of its size in Asia.[84]
In July 2014, the San Francisco 49ers' Levi's Stadium in San Francisco became the first venue in the United States to earn a LEED Gold certification, setting the bar and expectations for future NFL stadiums. The Minnesota Vikings look to match and exceed the expectations set by the 49ers when they open U.S. Bank Stadium in 2016.
The Cashman Equipment building is the first construction equipment dealership to receive LEED certification. It is the largest LEED industrial complex in Nevada. Caterpillar corporate has rewritten their development guidelines for new facilities based on this building.[85]
The Letterman Digital Arts Center in San Francisco's Presidio, the headquarters for various Lucasfilm companies, including visual effects house Industrial Light and Magic, earned a Gold certification. It was built almost entirely from the recycled remains of the building it replaced, the Letterman Army Hospital.[86]
The Cuyahoga County Public Library system is building newer branches so that they could be LEED Certified. In the construction of the Garfield Heights, Ohio new branch, the library used green materials, the lighting of Garfield Heights Branch lightens or dims when there is ample daylight. The glass windows have light sensors that work with lights inside the library. Also, the library uses a raised floor and has recyclable carpet tiles.
Opening in September 2012, Siemens' The Crystal became the world's first building awarded LEED Platinum and BREEAM Outstanding status.[87] Generating its own energy, using solar power and ground source heat pumps, no fossil fuels are burnt within the building. Its extensive use of KNX technologies to automate the building's environmental controls has set the benchmark for sustainable buildings.[88]
When it received LEED Platinum in 2012, Manitoba Hydro Place in downtown Winnipeg, Manitoba was the most energy efficient office tower in North America and the only office tower in Canada to receive the Platinum rating. The office tower employs south facing winter gardens to capture the maximum amount of solar energy during the harsh Manitoba winters, and uses glass extensively to maximise natural light.[89]
In its 2017 environmental responsibility report, Apple claims its Apple Park campus will become the largest LEED Platinum building in North America when it opens in May 2017.[90] It is said that the entire complex runs on 100% renewable energy (solar power and fuel cells), the air conditioning will run 70% of the year without consuming energy by using the natural air flow, and 80% of the area is open space with over 9000 drought resistant trees.
Criticism[edit]
In 2005, Auden Schendler and Randy Udall, respectively a LEED-accredited professional who is the director of environmental affairs at the Aspen Skiing Company and a Colorado-based environmentalist, published an article titled "LEED is Broken; Let's Fix It", in which they criticized numerous aspects of the LEED certification process, which they characterized as "costly, slow, brutal, confusing, and unwieldy ... that makes green building more difficult than it needs to be..."[91] Schendler and Udall also identify an environmentalist fallacy which they call "LEED brain", in which the public relations value of LEED certification begins to drive the development of buildings.[92] Writer David Owen, in his book Green Metropolis give as an example of "LEED brain" the building by Gap Inc. of a green showcase building in San Bruno, California that, in itself, was a paradigm of environmentally-friendliness, but by its location, 16 miles from the company's corporate headquarters in downtown San Francisco, and 15 miles from Gap's corporate campus in Mission Bay, was actually harmful to the environment by forcing Gap employees to drive more miles, and the addition of shuttle buses between the various buildings. Owen points out that "no bus is as green as an elevator."[93]
In his book Walkable City, city planner Jeff Speck provides another example of "LEED brain": the federal Environmental Protection Agency relocated its Region 7 Headquarters from downtown Kansas City, Missouri, to a LEED-certified building 20 miles away in the suburb of Lenexa, Kansas, causing many of the agency's 627 employees to drive additional miles to and from work. Karl Benfield of the Natural Resources Defense Council estimated that the carbon emissions associated with the additional miles driven were almost three times higher than before, a change from 0.39 metric tons per person per month to 1.08 metric tons of carbon dioxide per person per month. Speck writes that "The carbon saved by the new buildings LEED status, if any, will be a small fraction of the carbon wasted by its location."[94]
Both Speck and Owen make the point that a building-centric standard such as LEED, which doesn't sufficiently account for the location in which the building stands, will inevitably undervalue the strong positive effect of people living together in cities, which are inherently environmentally efficient, especially when compared to the automobile-oriented sprawl.[94][95]
See also[edit]
Sustainable development portal
Building enclosure commissioning
BREEAM
Center for the Built Environment
Center for Environmental Innovation in Roofing
Code for Sustainable Homes
Design Impact Measures
Ecological footprint
Energy conservation
Estidama
Environmental design
Green Globes
High-Performance Green Buildings
Living Building Challenge
NAHBGreen
Passive house
QSAS
Renewable energy
SmartCode
Sustainable architecture
U.S. Green Building Council
References[edit]
Citations[edit]
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Sources[edit]
Green Building Facts [Data file]. (n.d.). US Green Building Council. Retrieved June 27, 2009.
Kats, G., Alevantis, L., Berman, A., Mills, E., & Perlman, J. (2003). The Costs and Financial Benefeits of Green Buildings: A Report to California's Sustainable Building Task Force [Report]. U.S. Green Building Council.
Lucuik, M., Trusty, W., Larsson, N., & Charette, R. (2005). A Business Case for Green Building in Canada: Presented to Industry Canada [Report]. U.S. Green Building Council.
Owen, David (2009) Green Metropolis New York: Arrowhead. ISBN 978-1-59448-882-5
Schendler, Auden and Udall, Randy (October 26, 2005) "Leed is Broken; Let's Fix It" Grist
U.S. Green Building Council. (August 2006). Foundations of the Leadership in Energy and Environmental Design, Environmental Rating System, A Tool for Market Transformation [Policy Manual].
External links[edit]
About LEED by the U.S. Green Building Council
Going green with LEED by the Canada Green Building Council
Profile - LEED Green Building Certification System
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