North Carolina ENERGY STAR Conference Saving the World One House at a Time November 15, Energy Efficient Homes Top Ten List: Myth vs.

Transcription

1 North Carolina ENERGY STAR Conference Saving the World One House at a Time November 15, 2007 Energy Efficient Homes Top Ten List: Myth vs. Reality Sam Rashkin, R.A. National Director, ENERGY STAR for Homes

2 Myth No. 1: Myth: Sales Agents Reality: Od Order Takers

3 Myth No. 2: Myth: Build Tight, Ventilate Right Reality: Build Tight, Maximize Source Control, Ventilate as Needed

4 Source Control Moisture [Bulk, Vapor] Radon Combustion Emissions Toxic Building Materials Biological Pollutants plus Educate Home Owners!

5 Myth No. 3: Myth: Wood Framing Increasing in Cost Reality: Wood Framing Must be Free

6 Where 4 5must and 9 is is good; be better; Great! Courtesy of Building Science Corp.

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10 Myth No. 4: Myth: R-Value Reality: Effective R-Value

11 Effective R-Value Example: Uninsulated Corners/Intersections ti uninsulated corner uninsulated wall intersection

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14 ~48 wall corners and intersections = feet Uninsulated Wall!

15 Courtesy of Building Science Corp.

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19 Myth No. 5: Myth: SEER and AFUE = Efficiency Reality: Best Practices HVAC = Efficiency

20 Equipment Right-Sizing EE ER EE ER Right-Sized Equipment Right-Sized HVAC Equipment Lower Operating Cost Lower Operating Cost ~30% > eff. Increase cycle time from 3 to 8 min Run-Time (minutes)

21 Right-Sizing Air Distribution Best Practice HVAC Equipment (ACCA Manual J/S) Ducts (ACCA Manual D) Terminals (ACCA Manual T) Air-Tight/Internal Ducts Compact Ducts Static Pressure Flow Across Coil Room-by-Room Air Flow Pressure Balancing Exhaust Fan Flow Rates Air Handler Refrigerant Charge Air-Tight Cabinet High-Efficiency Fan Testing TXV Valve

22 Myth No. 6: Myth: % > Code Defines Efficiency Reality: % > Code Misses Low Hanging Fruit

23 Low Hanging Fruit Missed by Code-Based Programs * Moisture Control Effective R-Value Solar Orientation Efficient Water Distribution Best Practice HVAC Systems Advanced Lighting Size * some exceptions

24 Myth No. 7: Myth: Defects Out Of Sight, Out of Mind Reality: Defects No Longer Invisible

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26 Defects Out of Sight

27 AFFORDABILITY Defects No Longer PROBLEMS: Invisible AIR LEAKAGE Courtesy of Building Science Corp.

28 Used Homes Obsolete?

29 New Homes Obsolete?

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31 THE SCIENCE BEHIND HOME PERFORMANCE WHY COMPLETE AIR BARRIER

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33 Courtesy of Fort Collins Utilities

34 Courtesy: Tremco Barrier Solutions, Inc.

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36 CODE NONCOMPLIANCE EXPOSED Most thermal bypass details required by code but not enforced Are builders still liable?

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38 MAKING THE INVISIBLE VISIBLE

39 REDUCED RISK

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41 The Ultimate Scary Man Construction defects can dramatically change the comfort and quality of your home We can help!... Over $430,000, awarded to our clients!!!

42 Myth No. 8: Myth: Minimize Cost During Soft Market Reality: Maximize Value During Soft Market

43 Minimize Cost: ENERGY STAR Cost: $2,500 vs. Maximize Value: New Home Avg. Cost: $500,00+ <1% investment 100 Home Subdivision <1% Purch. Man. Dilemma: $2,500 x 100 homes = $25 $.25million Visible Quality Obsolete Competition Reduced Liability Increased Satisfaction Recognition as Leader

44 Myth No. 9: Myth: Green Reality: Wild, Wild, West

45 Point Categories = Complexity: Innovation and Design Process Location and Linkages Sustainable Sites Water Efficiency Energy and Atmosphere Materials and Resources Indoor Environmental Quality Awareness and Education

46 4 Shades of Green Certified Silver Gold Platinum

47 What Else Do Homebuyers Care About? Schools Low Maintenance Security Energy Efficiency Indoor Air Quality Allergy Resistance Disaster Resistance Structured Wiring Finish Package Appliance Package and the list goes on What if every valued attribute was offered in 4 shades?

48 Does Green Pass the Laugh Test? Truly Energy Efficient? Truly Water Efficient? Truly Durable? [Assured Bulk Moisture Control] Truly Healthy? [Toxic Material Limitations] Truly Resource Efficient? [Sustainable Products, Job-Site Waste].and the list goes on

49 Myth No. 10: Myth: Zero Energy Home Reality: Carbon Neutral Home

50 Example: 800 kwh/month home Option 1: Zero Energy (2 kw PV System) Revenue: 2 kw x 5 hr./day = 10 kwh/day X 30 day/mo. = 300/kWh/month X $.13/kWh = $40/month Cost: 2 kw x $10,000/kW = $20,000 at 6.5% mortgage = $140/month Plus: Insurance/Maintenance: $10-20/month?

51 Example: 800 kwh/month home Option 2: Carbon Neutral Home Assumptions: $.045 renewable power premium from utility Cost : 300 kwh/mo. x $.045/kWh = ~$15/month = near carbon neutral 800 kwh/mo. x $.045/kWh = ~$35/month = carbon neutral

52 Example: 800 kwh/month home: Comparison Zero Energy Home: Carbon Neutral Home: 2 kw PV System $.045/kWh RP premium -$100+/month 500 kwh/month carbon footprint -$15/month 500 kwh/month carbon footprint 5.5 kw PV System -$250+/month no carbon footprint -$35/month no carbon footprint

53 Myth Busting Strategy: ENERGY STAR Myth: Marketing Tools: #1: Sale Agents Established Brand Web Site Outreach Campaign Sales ToolKit Sales Training

54 Myth Busting Strategy: ENERGY STAR #2: Build Tight, Ventilate Right #3: Wood Framing Increasing in Cost #4, #5, #6: Flawed Metrics: R-Value Value, SEER/AFUE, Code #7: Defects Out of Sight, Out of Mind #8: Minimize Cost During Soft Market Myth: Technical Specifications: Old Specifications New Specifications Indoor Air Package Future Specifications

55 ENERGY STAR For Homes Old Spec Tight Air Advanced d Efficienti Field Ducts Sealing Windows Equipment Verified

56 ENERGY STAR For Homes New Spec Insulation Installation ti Thermal Bypass Right Sizing

57 ENERGY STAR Indoor Air Package Radon Control Pest Management HVAC Systems = Combustion Systems + Moisture + Pest Management Moisture Control Materials INDOOR AIR PACKAGE

58 ENERGY STAR For Homes Future Spec Thermal Bridging HVAC System Water Distrib. High Eff. Equip. Lighting/ App. Size + Moisture Control

59 Myth Busting Strategy: ENERGY STAR Myth: #9: Green #10: Zero Energy Home Future Developments: Green Begins with Blue Carbon Neutral Home

60 Green Begins with Blue Defining i Green and Making it Simple Energy Efficiency Envelope Distribution Equipment Lighting Appliances ENERGY STAR Indoor Environment Bulk Moisture Radon Pest Control HVAC Combust. Safety Materials ENERGY STAR IAP Resource Efficiency Water Materials Waste EPA Water Sense + 6 Mandatory Items

61 ENERGY STAR Carbon Neutral Home ENERGY STAR Future Spec + On-Site Carbon Renewable Offsets

62 For More Information: On the Web at: Sam Rashkin (202)