- Количество слайдов: 18
Federal Government Commitment to High Performance Buildings Katy Hatcher ENERGY STAR National Manager, Public Sector US EPA
ENERGY STAR Challenge Improve energy efficiency 10% or more and become an ENERGY STAR Leader!
ENERGY STAR Challenge Participants • Association of School Business Officials (ASBO) • Council of Educational Facility Planners International (CEFPI) • Council of the Great City Schools (CGCS) • National School Boards Association (NSBA) • National Parent Teacher Association (PTA) • National Association of Elementary School Principals (NAESP) • National Association of Secondary Principals (NASSP) • National Energy Education Development Project (NEED) • National Energy Foundation (NEF) • Alliance to Save Energy – Green School Program • American Solar Energy Society (ASES) – Legacy Schools
ENERGY STAR Challenge Participants • State Sector – More than half Country Participating – AZ, AL, CA, CT, DE, GA, FL, HI, IL, IN, KS, KY, ME, MD, MI, MS, MN, NH, NM, NC, NY, OH, PA, SC, TX, WI, WV, VT, and Washington, DC • Local Sector – Washington Council of Governments – NACo, ICMA, ICLEI, and others
ENERGY STAR In 2005, Americans with the help of ENERGY STAR, prevented 35 million metric tons of greenhouse gas emissions and saved about $12 billion on their utility bills.
ENERGY STAR Challenge Impact • Our governments, schools, and businesses spend billions annually on energy. Typically, about 1/3 of this money is paid to utility companies unnecessarily due to energy inefficiency. • Instead, this money could be invested in energy efficiency which can improve the lighting, acoustics, thermal comfort, and indoor air quality creating a better working and learning environment.
Federal Buildings • Federal Gov’t owns about 445, 000 buildings with more than 3 billion square feet • If these buildings reduced energy use by 10%, in 10 years taxpayers would save $420 million and reduce ghg equivalent to those from 625, 000 cars.
Sustainable Building Principles Federal MOU • Signed by GSA, DOD, EPA, and many others at White House Summit • Includes the following: – Integrated Design & Commissioning – Optimize Energy Performance – Water Efficiency – Use 20% less than potable water than indoor use baseline & reduce outdoor potable water consumption by 50%. – Indoor Environmental Quality – • ASHRAE 2004 ventilation and for thermal comfort • Establish moisture control strategy • Daylighting – achieve min of 2% daylighting factor in 75 percent of space • Low-Emitting Material adhesives, sealants, paints, carpet systems, and furninshings • Protect indoor environment during construction – Reduce Environmental Impact of Materials – recycled content, biobased content, construction waste, ozone depleting compounds.
New Model for Achieving Green and Energy Efficiency • Guiding Principles for Federal Leadership in High Performance and Sustainable Buildings focus on performance: – Establish whole building performance target: • Design to Earn ENERGY STAR – Reduce energy cost budget 30% from ASHRAE 90. 1 -2004 • Increase efficiency of components – Measure and verify energy use • Compare to design target • Use EPA’s energy performance rating
Why Use ENERGY STAR? A high performance/green building can: • Cost the same or less to build • Cost less to operate • Helps protect the environment – Reduces greenhouse gas emissions and air pollution from burning fossil fuels to generate energy to run buildings
How can you build a High Performance/green building cost-effectively? Strive to build High Performance/Green Buildings while paying special attention to: • Building orientation and the use of daylighting in the building design, • Energy-efficient building envelope and windows, • Use correctly sized energy-efficient technologies,
How can you build a High Performance/green building cost-effectively? Continued • Use cost-effective on-site renewable energy – (wind, geothermal, other), • Use interior materials, furnishings, and cleaning practices that minimize indoor air pollutants, and • Design to control space humidity • Commissioning equipment to perform as intended and use zones.
Cost Trading Principle Using daylighting and an energyefficient building envelope with high efficiency windows can reduce the amount, size, and capital costs of the equipment used to provide artificial lighting, heating and cooling equipment.
Design Your Projects… U. S. ENVIRONMENTAL PROTECTION AGENCY
Number of Buildings Energy performance gap Top performing buildings use 3 to 4 times less energy per ft 2 than the worst performers. 39% of buildings with a rating of 75 or better are less than 25 years old 42% of buildings with a rating between 25 and 74 are less than 25 years old 90 75 50 25 29. 9 86. 0 121. 1 165. 7 Best Performers Newer buildings are equally represented across all quartiles. 35% of buildings with a rating between 0 and 24 are less than 25 years old Based on a sample of 4, 000 buildings nationwide. 10 1 339. 4 EPA Performance Rating & Worst Performers Energy Intensity (k. Btu/ft 2 -year)
Tools & Resources • Target Finder – Building Design – Determine annual energy use target • Benchmark-based target during early project discussions • Whole building energy consumption – Rate your design energy use • Compare your design to similar buildings • Measure effectiveness of design strategies – Achieve 75 rating or higher • Statement of Energy Design Intent • Display “Designed to Earn the ENERGY STAR” graphic
Tools & Resources • Statement of Energy Design Intent – Documents performance – Design and ENERGY STAR • EPA Rating • Energy Performance Rating • Total annual energy use (k. Btu/sf/yr) • Total annual energy cost • Greenhouse gas emissions
Tools & Resources • Energy Performance Rating – Building design (no utility data) • Climate data: 30 -year average • Rating tool: Target Finder – Existing buildings (utility data available) • Weather: 30 -year average + data for year • Rating tool: Portfolio Manager