2010 Living Green Expo Slidshow
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This is the slideshow we were running at our booth at the 2010 Living Green Expo at the Minnesota State Fairgrounds. The slideshow contains a lot of full-screen images but no subtitles, therefore omitting some of the information which would have been given verbally during the presentation.
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2010 Living Green Expo Slidshow
- 4. designed by TE STUDIO
- 10. passive house experts testudio.com
- 11. PASSIVE HOUSE The world’s leading building energy standard 2010 PASSIVE HOUSE MINNESOTA Tim Delhey Eian Dipl.-Ing., Assoc. AIA, PBD AIBD, sh op rk m wo 3p ge at. l s
- 12. “passivhaus” TM CERTIFIED PASSIVE HOUSE ™ A rigorous, voluntary building energy standard focusing on highest energy efficiency and quality of life at low operating cost.
- 13. global standard Think globally, build locally.
- 14. environment
- 16. comfort
- 17. durability
- 18. zero & beyond HERS INDEX Z LEED Passive House Net Energy Positive Carbon Neutral (operation) Carbon Neutral (everything)
- 19. active vs. passive 25-125 4.756 kBtu/(sf a) kBtu/(sf a) Average existing building Passive House 85 - 450 kWh/(m2 a) 15kWh/(m2 a) Source: Krapmeier & Drössler 2001
- 20. CONCEPT
- 22. paradigm shifts
- 23. paradigm shifts 1. Leapfrog vs. incrementalism 2. System vs. component approach 3. Predicted performance
- 24. passive house experts testudio.com
- 26. “turn down the thermostat” Jimmy Carter, 1977
- 27. TM
- 28. “turn up the quality of life” TM TE Studio, today
- 29. one deep retrofit please
- 30. is it rocket science?
- 31. is it rocket science? Not really. • We know how far to take it • We know it’s the right thing to do • We know how to do it right
- 32. passive house experts testudio.com
- 33. economy Reduce your monthly utility bills to a minimum, or add renewable energy systems to create a home that pays you every month.
- 34. footprint Minimize your footprint while maximizing your quality of life.
- 35. performance TE Studio designs deliver unparalleled cutting edge performance today.
- 36. energy independence Leapfrog incremental energy improvements and move up to the world’s leading building energy standard, performance, and comfort.
- 38. indoor air quality It’s like opening all the windows in your home over three hours a day. Every day of the year.
- 39. durability Detailed planning. Quality construction. Predicted outcome.
- 40. survivability Enough insulation to keep you warm even when the power goes out.
- 41. value Build an asset, not a liability.
- 42. quality of life Enrich your life with a beautiful, resource-efficient building designed by TE Studio.
- 43. passive house experts testudio.com
- 44. your dream home here!
- 45. your dream home here! TE Studio offers custom designs for your Passive House or Deep Energy Reduction Retrofit project. We’ll work with you to make your dreams come true.
- 46. affordable passive house Appleseed House project for North Minneapolis &
- 48. custom design
- 49. we focus on your goals
- 50. passive house experts testudio.com
Notas do Editor
- Thanks for inviting me to talk about Passive House Design Standard. Thank people for coming Excited to be here and talk about Passive House Quick background on my person: - German, lived here 7 years, family and house, worked with local firm for 6.5 years, have always been fascinated with architecture and how things work. Architectural degree more technical in Germany (engineer’s title), have had a fascination with efficient approaches to design. This talk: 2 sections (1) general benefits, (2) key summary of how to do it
- Let’s talk more about details of Passive House Design. A house build to current energy code in Minnesota could potentially qualify as a Passive House in California. Passive House Standard performance requirements are always the same, regardless of building location Climate zone and a building’s distinctive location impact the design significantly Therefore, Passive House buildings will look differently depending on where they are located
- Environment: Significant conservation and improved performance = significantly reduced environmental impact Up to 75% savings on source energy = smaller CO 2 footprint: Carbon-neutrality truly in reach. Don’t need a football field of PV panels Likely in use longer and maintained longer than average building, Less likely to need retrofit, reduction in energy used for construction and materials
- Health: Improved indoor environmental quality = improved health Guaranteed mechanical air-exchange 24/7—365 days a year, Tempered air (heat recovery ventilation), Controlled humidity, Slow and steady air movement (quiet and without drafts) Indoor surfaces are near room temperatur, virtually no radiant heat-loss potential Improved daylighting and solar exposure Studies show less potential for asthma, allergies, sickness Significantly reduced exposure to CO, pollutants, VOCs. Virtually no potential for mold, no radiant heat loss, healthy humidity levels, little to no noise pollution
- Comfort: Superinsulated building envelope = high level of comfort Indoor surfaces are near room-temperatur, virtually no radiant heat-loss potential Improved indoor environmental quality Extremely quiet inside due to superinsulation and high-performance windows very high (virtually no radiant heat loss, healthy humidity, fresh air, etc.)
- Durability: High quality planning and construction = extremely durable building Energy modeling, quality-controlled construction, field testing > predictable results Advanced window technology, longevity Reduced mechanical system, less moving parts = less maintenance Owner training, “understand your building”, Owner’s manual, “pass on the knowledge” Certified building standard
- How do we measure the success? In Germany, we look at gas-mileage for homes. Instead of MPGs, we measure in kWh/m2 a or Btu/sf year In U.S. we currently use a comparative model: HERS Problem: nobody really knows what the basis is and buildings are compared on a point basis. Nowhere does it directly relate back to energy. Limited use, but realtor associations are looking to use it for a “green” realty label, MN starting 2009. HERS is determined by HERS rater. HERS (Home Energy Rating System), controversial and not absolute- uses comparison not actual energy modeling or monitoring Ratings provides a relative energy use index called the HERS Index – a HERS Index of 100 represents the energy use of the “American Standard Building” and an Index of 0 (zero) indicates that the Proposed Building uses no net purchased energy (a Zero Energy Building). Zero Site energy, nor really a zero energy building though. What is a HERS Rating? A home energy rating involves an analysis of a home’s construction plans and onsite inspections. Based on the home’s plans, the Home Energy Rater uses an energy efficiency software package to perform an energy analysis of the home’s design. This analysis yields a projected, pre-construction HERS Index. Upon completion of the plan review, the rater will work with the builder to identify the energy efficiency improvements needed to ensure the house will meet ENERGY STAR performance guidelines. The rater then conducts onsite inspections, typically including a blower door test (to test the leakiness of the house) and a duct test (to test the leakiness of the ducts). Results of these tests, along with inputs derived from the plan review, are used to generate the HERS Index score for the home. The HERS Index The HERS Index is a scoring system established by the Residential Energy Services Network (RESNET) in which a home built to the specifications of the HERS Reference Home (based on the 2006 International Energy Conservation Code) scores a HERS Index of 100, while a net zero energy home scores a HERS Index of 0. The lower a home’s HERS Index, the more energy efficient it is in comparison to the HERS Reference Home. Each 1-point decrease in the HERS Index corresponds to a 1% reduction in energy consumption compared to the HERS Reference Home. Thus a home with a HERS Index of 85 is 15% more energy efficient than the HERS Reference Home and a home with a HERS Index of 80 is 20% more energy efficient. For more information, visit the RESNET Web site . Comparing the New HERS Index with the Old HERS Score For homes rated before July 1, 2006, the rating score is known as a “HERS Score.” The HERS Score is a system in which a home built to the specifications of the HERS Reference Home (based on the 1993 Model Energy Code) has a HERS Score of 80. Unlike the HERS Index, each 1-point increase in a HERS Score is equivalent to a 5% increase in energy efficiency. Please see the table below for a comparison of the HERS Score and the HERS Index.
- Passive House with “passive” systems and small post-heater uses a max. of 4,750 British thermal units per square foot and year for heating Conventional Building with “active” heating system uses 5–30x more heating energy than a Passive House
- Starting point and upgrades
- First Passive House in urban setting. First in Twin Cities. Affordable Housing. 3112 6th St. N, Eco Village, Hawthorne, North Minneapolis PH design lends itself well to affordable housing: - low and predictable operating cost - high survivability (doesn’t cool off) - empowerment through design (don’t just give people anything, give them something really good) Thank MinneAppleseed for their support of Passive House design. Enjoying that process much of bringing hope to a community that is lacking attention, resources, opportunity.
- First Passive House in urban setting. First in Twin Cities. Affordable Housing. 3112 6th St. N, Eco Village, Hawthorne, North Minneapolis PH design lends itself well to affordable housing: - low and predictable operating cost - high survivability (doesn’t cool off) - empowerment through design (don’t just give people anything, give them something really good) Thank MinneAppleseed for their support of Passive House design. Enjoying that process much of bringing hope to a community that is lacking attention, resources, opportunity.
- First Passive House in urban setting. First in Twin Cities. Affordable Housing. 3112 6th St. N, Eco Village, Hawthorne, North Minneapolis PH design lends itself well to affordable housing: - low and predictable operating cost - high survivability (doesn’t cool off) - empowerment through design (don’t just give people anything, give them something really good) Thank MinneAppleseed for their support of Passive House design. Enjoying that process much of bringing hope to a community that is lacking attention, resources, opportunity.
- First Passive House in urban setting. First in Twin Cities. Affordable Housing. 3112 6th St. N, Eco Village, Hawthorne, North Minneapolis PH design lends itself well to affordable housing: - low and predictable operating cost - high survivability (doesn’t cool off) - empowerment through design (don’t just give people anything, give them something really good) Thank MinneAppleseed for their support of Passive House design. Enjoying that process much of bringing hope to a community that is lacking attention, resources, opportunity.