new green buildings and energy-efficient retrofits john morrill & joan kelsch arlington county...
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New Green Buildings and Energy-Efficient Retrofits
John Morrill & Joan Kelsch
Arlington County Government
MWCOG Energy & Air Quality Conference, April 5, 2004
Opportunities in three areas
Green buildings for County gov’t Green building incentives for private developers Energy-efficiency improvements in existing buildings
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
Voluntary certification program by the U.S. Green Building Council
A leading-edge system for designing, constructing, and certifying the world’s greenest buildings.
LEED defines ‘green’ (1)
Minimum standards (prerequisites) plus points awarded for smart choices in:
site selection materials & resources
water efficiency energy/atmosphere
indoor environmental quality innovation
LEED defines ‘green’ (2)
Points (credits) required for certification:
Certified: 26-32 credits
Silver: 33-38 credits
Gold: 39-51 credits
Platinum: 52-69 credits
LEED defines ‘green’ (3)
Energy & atmosphere credits are prominent
Significant prerequisites (commissioning, CFC reduction, energy performance) plus
17 additional credits available for:
further improvements in energy efficiency,
use of renewable energy and green power,
ozone protection, add’l commissioning, on-going measurement & verification
Leadership in Energy and Environmental Design (LEED)
Arlington built Virginia’s first LEED certified building, the Langston-Brown High School and Community Center.
This is a LEED Silver project.
Langston-Brown School & Community Center
50,000 sf replacement of 23,500 sf bldg Demolition waste diverted for recycling, rather than landfill Stormwater management including cisterns, porous pavement, bioretention, and stormceptor Extensive daylighting, light shelves, solar shading for energy benefits
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
Green Building Programs for Private Development
1. Require LEED Scorecard submission2. Require LEED professional and
specific number of LEED credits3. Green building density incentive4. Green Building Fund contribution
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
LEED Scorecard for Development Projects
For projects not seeking USGBC certification: Each project team must
include a LEED- accredited professional
Each project must include the LEED Scorecard listing specific “green” components of the project, with explanation of each credit
County negotiates final LEED credits with applicant
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
LEED Scorecard for Development Projects
Specific number of LEED credits req’d (usually 15-20)
LEED Reports due at specific permit applications
If LEED requirements not met, County withholds permits
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
Green Building Incentive Program
Developer can apply for bonus density if project meets LEED requirements
Includes all types of building (not just commercial office)
FAR bonus offered ranges from .15 for Certified to .35 for Gold/Platinum
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
Green Building Incentive Program
Enforcement Developer posts a bond that is
released when the USGBC issues certification
If the project does not meet the certification, bond is forfeited to the County
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
Green Building Incentive Program Participants
Navy League Building is now under construction at 2300 Wilson Blvd
10,000 additional square feet
National Rural Electric Cooperative Association (NRECA) building recently approved in Ballston
16,000 additional square feet
Arlington, Morrill & Kelsch, MWCOG, April 5, 2004
Green Building Fund
If developer does not apply for LEED certification from USGBC, the project contributes to Arlington’s Green Building Fund
Contribution equals 3 cents/square foot200,000 sq ft building contributes $6,000
Fund to be used for green building education and outreach
Energy efficiency improvements to existing buildings (1)
Changes in energy use from 1999 to 2003 -
Central Library: electricity 30% Argus House: electricity 32% Solid waste/Traffic admin: electricity 14% Madison Comm. Ctr: gas 13% electric 17% Lubber Run Comm. Ctr: gas 26% elec. 19% Residential Program Ctr: gas 9% elec. 11%
Energy efficiency improvements to existing buildings (2)
Electricity Consumption in Arlington Central Library Energy Management Program Began in 2000
0
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
1997 1998 1999 2000 2001 2002 2003
Ele
ctr
icit
y U
se
(k
Wh
)
December
November
October
September
August
July
June
May
April
March
February
January
Energy efficiency improvements to existing buildings (3)
Electricity Consumption at All-Electric Argus House
0
50,000
100,000
150,000
200,000
250,000
1997 1998 1999 2000 2001 2002 2003
kilo
wa
tt-h
ou
rs
December
November
October
September
August
July
June
May
April
March
February
January
Energy efficiency improvements to existing buildings (4)
Improved operation & maintenance Lighting retrofits Energy Star equipment Employee education (modest amt so far) In-house staff and contractors so far Large potential savings remain
Importance of paying attention to both new construction and existing stock
1999 - Arlington government had 50 occupied
buildings totaling 1.49 million sf, using 25.4
million kWh per year 2003 - those same 50 buildings used 9.6% less
electricity (saving 2.4 million kWh) During 1997 and 2003, Arlington built, bought, or
leased 11 buildings totaling 265,000 sf, using
over 6 million kWh/yr
Electricity Use in Arlington County buildings, 1997-2003
0
5,000,000
10,000,000
15,000,000
20,000,000
25,000,000
30,000,000
1997 1998 1999 2000 2001 2002 2003
Calendar Year
Ele
ctr
icit
y u
se
(k
Wh
)
New during 1997-2003, 11 bldgs, 265,000 sf
Existing stock, 50 bldgs, 1.49 million sf
For more information
Energy in existing buildings, air quality: John Morrill, energy manager, 703-228-4426
Arlington’s green buildings activities:
Joan Kelsch, environmental planner
703-228-3599 [email protected]
www.co.arlington.va.us/des/epo/green.htm