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Relevant ASHRAE Standards For Energy Efficiency in Buildings Prof. Walid Chakroun, DRC, RAL ASHRAE Engineering the World We Live In Roundtable on Ozone- and Climate Friendly Technologies in RAC, 10 May 2011
Today’s building designs mortgage our energy future.
Why Are Buildings So Important?• World total energy consumption is expected 40% of U.S. Primary Energy Consumption to increase as high as 50 percent in less than a decade.• Buildings are responsible for 38% of total energy use – that figure increases to up to 70% in Source: 2007 Buildings Energy Data Book. Tables 1.1.3, 1.2.3, 1.3.3 some countries. 3
Fastest Growing Energy Sector 45 Industrial 40 Transportation Buildings Total 35 30 25 Quads 20 15 10 5 0 1980 1985 1990 1995 2000 2005 Year Source: EIA Annual Energy Review, Tables 2.1b-2.1f., June 2007Buildings sector energy consumption growing faster than any other sector.
Building Energy Efficiency“…is the single most important opportunity for reducing greenhouse gas emissions” “…is the “fastest-growing (2007-2008 ASHRAE President Kent Peterson) success story of the last 50 years” (American Council for an Energy Efficient Economy)
Standard 90.1 • Standard 90.1-2010 was published last Fall • Celebrating 35th anniversary of publication of Standard 90.1 • Developed in response to U.S. energy crisis of 1970s • www.ashrae.org/90.1histo ry
Standard 90.1• 2007 standard is the reference standard for the International Energy Conservation Code• Adopted by National Fire Protection Association• Adopted by many countries around the globe
Standard 90.1• Provides minimum requirements for the energy- efficient design of buildings except low-rise residential buildings• Covers – New buildings and their systems – Additions – alterations
Standard 90.1 Sections• Section 1 – purpose• Section 2 – scope• Section 3 – definitions, abbreviations and acronyms• Section 4 – administration and enforcement• Section 5 – building envelope• Section 6 – heating, ventilating and air conditioning
Standard 90.1 Sections• Section 7 – service water heating• Section 8 – power• Section 9 – lighting• Section 10 – other equipment• Section 11 – energy cost budget method• Section 12 – normative references
Standard 90.2The purpose of this standard is toprovide minimum requirements for theenergy-efficient design of residentialbuildings. 12
Standard 90.2– This standard provides minimum energy-efficiency requirements for the design and construction of new residential dwelling unitsIt covers:– New residential buildings and their systems– Additions 13
Green Building Standard • Published in January 2010 • Serves as benchmark for sustainable green buildings – does not apply to all buildings • Addresses energy, impact on the atmosphere, sustainable sites, water use, materials and resources and IEQ www.ashrae.org/greenstandard
What is Standard 189.1?• ANSI standard developed in model code language• Provides minimum requirements for high-performance, green buildings• Applies to all buildings intended as high performance except low-rise residential buildings (same as ASHRAE/IESNA Std 90.1)• Not a design guide, not a rating system• Jurisdictional compliance option to the International Green Construction Code published by the International Code Council and cooperating sponsors, American Institute of Architects and ASTM International
Compliance PathsMandatory + Prescriptive Path (simple option, very few calculations)Mandatory + Performance Path (more options, but more effort)
Standard 189.1 Topic AreasSS Sustainable SitesWE Water Use EfficiencyEE Energy EfficiencyIEQ Indoor Environmental Quality Building’s Impact on the Atmosphere, Materials &MR ResourcesCO Construction and Operations Plans
In a global marketplace, the objective of the standards development process must be a single, internationally recognized, technically valid standard that allows products to be distributed for commerce worldwide with minimal change or modification.One Global Standard Accepted by All
What’s Your Building EQ?• In Operation Pilot completed in June 2010• 23 buildings from 10 owners/operators• 17 Provisional Assessors• Assessments include: - Building characteristics - Building Energy Quotient - IEQ Assessment• As Designed rating was also followed in second half of 2010 www.buildingeq.com
Building Energy Labels Provide. . . • Information on the potential and measured energy use of buildings • Feedback to building owners and operators on how their building is performing • Insight into the value and potential of investments for long-term energy costs • Opportunity to differentiate buildings in a technically sound and consistent manner
Advanced Energy Guidance • Over 250,000 guides in circulation – 80 percent US, 8 percent Canada, 12 percent ROW • DOE recently approved AEDG 50% Funding – First Guide to be Small-Med Office • Available for free download ww.ashrae.org/freeaedg