ESL-HH Codes and Regulations Manager. Charlotte, NC

Transcription

1 Shirley Muns, CBO Codes and Regulations Manager US Greenfiber, LLC Charlotte, NC

2 Minimum Standards for Energy Efficiency The least efficient building legally permissible Are not product specific Type of fuel for appliances Recycled content NOT state-of-the-art criteria Do not regulate cosmetic items Paint Carpet

3 Building Envelope Mechanical Systems Electrical Systems Water Heating

4 Strawbale b l Different Energy E Efficient i Healthy Uses U renewable and recycled materials Environmentally friendly Alternate t methods of construction ti Innovative, cutting edge technology

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6 Impact of Buildings 1.3 million single-family housing starts permitted in United States $170 billion in private nonresidential construction The average home emits twice as many greenhouse gases (GHG) as the average car Source: 2002 US Census

7 National Perspective Energy savings potential in the 15 states with least efficient codes (or no code) 18.5 trillion Btu s annually 30-year cumulative savings of 8.5 Quads Source: BCAP estimates

8 Benefits to Communities Lowers production of Green House Gases & particulates Decreases need to construct new power plants Reduces peak load demand (increased system reliability) Keeps energy dollars in communities Improves building stock

9 Benefits to Builders Promotes good construction practices Increases competitive advantage Reduces callbacks due to properly-installed systems Codes provide consistent requirements across jurisdictions

10 Benefits to Consumers Lower utility costs Increased comfort Reduced air leakage Less extreme surface temperatures Low Maintenance/Durable Increased equipment life

11 Beyond Code: What s Attainable? USGBC LEED s Rating (Leadership in Energy and Environmental Design NAHB Green Building Standard Energy Star Building to these specifications means 30-50% lower energy consumption

12 Is it Green Is it Sustainable Or is it a marketing ploy

13 How to Build Above Code Establish Design Philosophy Start at Pre-Design Stage Use Life-Cycle-Cost Analysis Seek technical assistance Recruit vendors and suppliers Increase Capital Budget? Not always

14 Where does the rubber meet the road? Just how do you design and build beyond code?

15 Solar Altitude: Angle above the horizon Where is the Sun? This morning? Yesterday? Last Christmas? SOLSTICE Summer/Winter EQUINOX Spring/Fall Solar Azimuth: Angle from true south

16 Small can be beautiful Oil, gas and electricity are not going to get cheaper

17 Porches Living areas

18 Create outdoor rooms to increase living space

19 Create outdoor rooms to discourage long-term visits

20 Building Envelope Windows Reflective Roofing Radiant barriers Shade Insulation Installation quality Total-fill solutions Framing alternatives

21 How We Use Energy In Our Home (Based on national averages) The largest portion of a utility bill for a typical house is for heating and cooling, but a close second is lighting and appliances.

22 This is the past 50% efficient?

23 And this is the future 90+% efficient

24 Advanced Controls Selection Demand Controlled Ventilation Using CO2 Sensors and Variable Fan Drive OR Occupancy based on/off control CO2 sensor in return duct

25 Natural ventilation - where AC is not critical Dedicated exhaust - for areas in the building such as bathrooms, chemical storage, office work rooms Energy Recovery Ventilation -cost effective in almost all building types System commissioning - during entire project, recommission in a year Night flush - eliminate contaminants and pre-cool building

26 Efficient lights Energy Star appliances Phantom loads

27 How can we do better than the code? Daylight it s free Control the lights Occupancy sensors Daylight sensors Timers Bi-level switching Advanced technology

28 Daylighting UC Berkeley Library Warehouse

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30 Occupancy Sensors Available in Passive-Infrared & Ultrasonic Most common problem is mis-application

31 Pulse-Start Metal Halide T5 high-bay High-Efficiency Fixtures T8 with electronic ballast Super-T8 systems

32 L.E.D. - Light Emitting Diode Pros: Energy Efficient Super-Long Life - 100,000 hrs Cons: Expensive Difficult to Produce White Light Icing in outdoor applications

33 Consume as much as 75% less energy when switched "off than other models Computers have sleep mode Limits on energy during use, when turned off Annually, Americans spend more to power home audio and DVD products when turned off than when actually in use (over $1 billion)

34 Natural gas water heaters Electric water heaters Lawrence Berkeley Laboratory 1993 Home Energy Magazine Jan/Feb 1995

35 Electric demand d heaters require so much power to instantaneously heat water at a reasonable flow and temperature t rise, they can actually be the most expensive type of water heater to operate.

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37 Federal Role of Governments DOE recognizes national models (ICC and ASHRAE), and provides technical assistance Statest Adoption can be regulatory or legislative Not all have statewide codes Local In home rule states, adoption is local Enforcement is always local

38 Role of State Energy Offices State-level Efficiency Catalysts Work established networks: ASHRAE, ICC, AIA, Contractors Associations, Utilities, Regulators Improving Technical Expertise (ESL- style trainings) Providing Resources ($) for Early Adopters, Advanced Buildings

39 For any building energy codes project to meet goals of significant energy savings and a high level of energy code compliance we must: Continue to work together, as a team and in partnership p Maintain quality communication Share goals, information and technology Learn from regional, national and international experiences