Transcript What are Energy Codes?

AGENDA
• THE ELEPHANT IN THE ROOM
• A BROAD-BASED CAMPAIGN FOR 30%
• 2012 RESIDENTIAL AND COMMERCIAL IECC
• THE MYRIAD BENEFITS
• THE CHALLENGE: ADOPT, TRAIN, ENFORCE
COMMERCIAL BUILDING EFFICIENCY IS
STAGNANT
Commercial Building Energy Efficiency
AND, AFTER WORSENING LAST DECADE, HOME
EFFICIENCY IS NOW SAME AS 1990s LEVELS
Residential Building Energy Efficiency
THE SIMPLE FACT . . . BUILDINGS ARE THE
ELEPHANT IN THE ROOM
America’s Homes &
Commercial Buildings
consume:
42% of all energy
54% of natural gas
71% of electricity
. . . And they account for
39% of US manmade
GHGs
ENERGY CODES: AN ESSENTIAL MECHANISM TO
IMPROVE AMERICA’S BUILDING EFFICIENCY
66%
COVERED
BY
CODES
ENERGY IS THE
HIGHEST COST OF
HOME
MAINTENANCE . . .
HIGHER THAN
TAXES OR
INSURANCE
CONGRESS EMBRACES NEED FOR BUILDING
EFFICIENCY; UPS ANTE WITH ARRA
1992 and 2005 Energy Policy Acts urge state
adoption of IECC/ASHRAE.
2009: All 50 states accept American Recovery &
Reinvestment Act (ARRA) funding & commit to:
1.
2.
Adopt building energy code ≥ 2009 IECC & ASHRAE 90.1 2007
Implement a plan to achieve 90% compliance with 2009 IECC or
equivalent by 2017
AGENDA
• THE ELEPHANT IN THE ROOM
• A BROAD-BASED CAMPAIGN FOR 30%
• 2012 RESIDENTIAL AND COMMERCIAL IECC
• THE MYRIAD BENEFITS
• THE CHALLENGE: ADOPT, TRAIN, ENFORCE
COLLABORATION SPHERES
REEOs
EECC
CODE
DEVELOPMENT
CODE
ADOPTION
OVERVIEW AND HISTORY
BCAP
CODE COMPLIANCE &
ENFORCEMENT
AGENDA
• THE ELEPHANT IN THE ROOM
• A BROAD-BASED CAMPAIGN FOR 30%
• 2012 RESIDENTIAL AND COMMERCIAL IECC
• THE MYRIAD BENEFITS
• THE CHALLENGE: ADOPT, TRAIN, ENFORCE
NATIONAL MODEL ENERGY CODES/STANDARDS
Residential: 2012 IECC
About 30% more energy efficient than 2006 baseline
IECC Updated every 3 years by state/local officials
References ASHRAE 90.1 in addition to
separate commercial code chapter
Next Update: 2015 IECC published early 2014
Commercial: 2012 IECC or ASHRAE 90.1-2010
About 30% more energy efficient than 90.1-2004 baseline
Updated every 3 years by consensus committee
Next ASHRAE Update: 2013
THE 2012 IECC
Beginning with the 2012 IECC, the stated intent of the
IECC is the “effective use and conservation of energy,”
not just in the first year of operation, but over “the life
of the building.”
The 2012 IECC follows the framework of the 2009 IECC
to achieve a whole-house, integrated solution to energy
efficient construction.
The 2012 IECC:
A “Whole House” Approach
to Efficiency
Top Ten 2012 IECC residential
requirements
1. Mandatory whole-house pressure test
aka: Blower Door test
CZ1-2 Test out at less than 5 ACH50
CZ 3-8 Test out at less than 3 ACH50
2. More stringent duct leakage test aka Duct
Blaster test
3. Steel Framing – equivalency charts
adjusted for thermal bridging (see Table)
4. Floor insulation must maintain
(continuous) permanent contact against
subfloor
5. Low-e essentially required for all CZ’s.
Top Ten 2012 IECC residential
requirements
6. Wood-burning fireplaces shall tight-fitted 9. Hot water piping must now be insulated
flue dampers and outdoor combustion air. to at least R-3 with some exceptions.
7. Whole house ventilation system
required
•
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meet IMC or IRC
minimum efficacy
8. 75% of lamps in permanently installed
fixtures shall be high efficacy lamps
10. Hard Ducted returns: Building cavities
are not allowed to be used as return ducts
Top Ten 2012 IECC commercial
changes from 2009
1. Vertical fenestration maximum:
CZ7-8 30%; CZ 1-6 Still 40% if half the conditioned floor
is in a daylight zone; controls are installed; VT/SHGC ratio
is at least 1.1
2. Increased Skylight area from 3% max to
5% - with daylighting controls
3. Air barrier – continuous throughout
envelope CZ 4-8
4. Pipe insulation more stringent – now also
rely on diameter and fluid temp
5. Requires one of these additional
efficiency features to be selected for
compliance: high-efficiency HVAC; reduced
LPD Renewable energy.
Top Ten 2012 IECC commercial
changes from 2009
6. Air economizers are required in more
10. Calculation of heating and cooling load:
climate zones and at a lower threshold (33K must account for building envelope, lighting,
Btu/h vs. previous 54K)
ventilation, and occupancy-related loads of
the project. ASAHRAE/ACCA Standard 183
7. Lighting power limits based on 90.12012 and ASHRAE design conditions
space by space method.
8. Commission plan – by a registered design
professional (or agency)
9. Cool roofs - minimum solar reflectance
and thermal emittance of roofs in Climate
Zones 1-3 that have a slope less than 2 in 12
(several exceptions)
THE 2012 IECC
As Seen By The Us Department Of Energy:
The 2012 IECC “represents the largest, one-step
efficiency increase in the history of the national model
energy code.”
In fact, DOE found that the 2012 IECC represents a
whopping 32% improvement in US energy savings
over the 2006 IECC.
Building Codes Assistance Project
|
AGENDA
• THE ELEPHANT IN THE ROOM
• A BROAD-BASED CAMPAIGN FOR 30%
• 2012 RESIDENTIAL AND COMMERCIAL IECC
• THE MYRIAD BENEFITS – INCLUDING CLEANER AIR
• THE CHALLENGE: ADOPT, TRAIN, ENFORCE
BUILDING EFFICIENCY BENEFITS EVERYONE
• Improves national security, sound energy policy
• Delays the need for new power plants
• Stabilizes energy price to Main Street businesses
& inefficient building owners/occupants
• One of the fastest ways to mitigate cost of raw
materials used in construction
• Homes efficient for 4-5 generations!
• Most cost-effective GHG reduction
HOMEBUILDERS KNOW IT:
THE MOST IMPORTANT BUILDING TRENDS
NAHB Survey of Top Builders
Energy Efficiency
70%
61%
58%
51%
Low Maintenance Homes
Design for Aging in Place
Green Building
31%
“Energy Efficiency is a trend with increasing importance among builders and their
Customers, the benefit accrues directly to the homebuyer in their first energy bill”
AND HOMEOWNERS KNOW IT AS WELL:
2013 SURVEY: WHAT HOME
BUYERS REALLY WANT
9 Out of 10 Buyers Now Want an Energy Efficient
Home & Will Pay 2-3% More To Buy It
“First and foremost, [buyers want] energy efficiency.”
“9 out of 10 buyers would rather buy a home with
energy-efficient features & permanently lower utility bills
than one without those features that costs 2% - 3% less.”
MOST IMPORTANTLY, EFFICIENCY PUTS MONEY
IN WALLETS OF OWNERS/OCCUPANTS
Low Income Housing Advocates: Inability to pay energy bills is the second
leading reason people lose their homes.
Habitat for Humanity:
If home buyers pay less for energy, they can afford larger mortgages.
Because energy efficient homes have lower and more stable utility costs,
there is less risk of foreclosure.
Energy efficiency is a great investment for home owners. When added to a
mortgage, energy improvements usually cost less than the savings they offer
on utility bills.
Increasing the value of a home is a great investment . . . paying high energy
bills is not!
THE IECC IS THE ONLY
I-CODE THAT PAYS
FOR ITSELF . . .
. . . ENERGY SAVINGS
WILL MORE THAN PAY
FOR THOSE GRANITE
COUNTER-TOPS
YOU’VE HEARD SO
MUCH ABOUT
HOW MUCH DO OWNERS OF 2012 IECC HOMES
POCKET IN NET ENERGY SAVINGS?
1. The US Department of Energy
DOE COST-EFFECTIVENESS STUDY
Study covering the 2009 and 2012 IECC
for new single- and multi-family homes
against 2006 IECC baseline taking statespecific code amendments into
consideration.
National Cost Analysis: An overview of
cost-effectiveness by climate zone
State-level analyses for 43 states and DC
DOE COST-EFFECTIVENESS STUDY
Uses a life-cycle approach, balancing first costs against longerterm energy savings over the life of the home.
Energy analysis uses the DOE EnergyPlus™ software.
HOW MUCH DO OWNERS OF 2012 IECC HOMES
POCKET IN NET ENERGY SAVINGS?
2. BCAP/ICF INTERNATIONAL ANALYSES
IN FACT, ICF-BCAP CONFIRM SAVINGS
EVERYWHERE
AND – TO BRING IT ALL AROUND TO THE
PURPOSE OF THIS CONFERENCE – CLEANER AIR
Nationwide Savings from 2012 IECC Adoption
An Analysis by the Alliance to Save Energy
• More than 3.5 quadrillion Btu of annual energy savings
by 2030
• About $40 billion annual energy cost savings for
consumers and businesses by 2030
• About 200 million metric tons of carbon dioxide emissions
avoided annually by 2030
AGENDA
• THE ELEPHANT IN THE ROOM
• A BROAD-BASED CAMPAIGN FOR 30%
• 2012 RESIDENTIAL AND COMMERCIAL IECC
• THE MYRIAD BENEFITS
• OUR CHALLENGE: ADOPT, TRAIN, ENFORCE
RESOURCES TO SUPPORT THE ENERGY CODE
A NATIONAL
COLLABORATIVE
Leveraging
Relationships
Coordinating
Services
Robust Technical
Assistance Resources
COMPLIANCE ASSISTANCE
• Compliance Planning Assistance
(CPA)
• State Based Compliance
collaboratives
• Energy Code Ambassadors
Program (ECAP)
THE CPA PROGRAM
• Objective: To assist states in the development
of plans to achieve 90 percent compliance
with their updated building energy code(s) by
2017
• Originally funded by DOE June 2010
• 15 states – chosen by BCAP, REEOS, NASEO,
and DOE
• 22 states completed to-date
ENERGY CODE COMPLIANCE COLLABORATIVE
Can help coordinate the success of the Strategic Plan:
The establishment of an Energy Code Compliance Collaborative will set forth a diverse group of
stakeholders with the focus of carrying out the necessary tasks for energy code implementation,
and in turn will ensure greater compliance with the energy code.
Key Roles could include:
1.
A Collective Voice on Code Issues
2.
A Collaborative Forum
3.
A Clearinghouse on Code Information
4.
Securing Funding for State and Local
Projects
5.
A state nexus for communication with
regional and national resource groups
Compliance Collaborative in Nevada
ENERGY CODES AMBASSADORS PROGRAM
(ECAP)
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Gives the state “boots-on-the-ground”
Provides Peer-to-Peer Exchange, Mentoring
Cost-effective outreach, support and advocacy
Enhances communication of national and
state energy support services and materials to
the local level
ECAP in AL, NV, UT, ID, OH
Several new states considering ECAP (DE, TX,
DC)
Hoping to find state sponsors for sustainability
Similar program in KY
IT’S THE BIG “IF”
Texas is already on its way:
• Working with RECA to adopt the 2012 IECC
intact
• Working with BCAP on adoption, training,
compliance
• Working with EECC to defeat rollback proposals
MAUREEN GUTTMAN, AIA
BCAP Executive Director
1850 M Street, NW; Suite 600
Washington, DC 20036
(202) 530-2211 (office)
(412) 907-0088 (mobile)
[email protected]