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to Build ‘Passive House’ in California for 2012
“The Passive House movement shows us what's possible with ultra-‐low-‐energy buildings. These homes are pushing the envelope and creaMng an invaluable collecMon of case studies that demonstrate just how dramaMcally energy consumpMon can be reduced-‐-‐and how we can meet the targets for carbon emission reducMons that are needed to slow global warming. It provides metrics and a path for implementaMon.” – Alex Wilson
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Top Ten Reasons
Bronwyn Barry, Assoc. AIA, CPHC Director, One Sky Homes PHCA President 2012
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10: It wins awards and recogniMon
The ‘Go Home’ receives USGBC 2011 Project of the Year Award G.O Logic Homes, Belfast, Maine www.gologichomes.com
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10: It wins awards and recogniMon
R-‐House, Syracuse, NY wins AIA Housing Award 2011 Della Valle Bernheimer and Architecture Research Office www.d-‐bd.com and www.aro.net Image credits: della valle bernheimer
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9: Our climate makes it easy!
Carbon Neutral & Net Energy + Passive House in…. WISCONSIN! TE Studio www.testudio.com
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Image credits: Mm eian
Fossil-‐fuel free home + Passive House in…. ALASKA! Thorsten Chlupp www.cchrc.org
Image credits: sam harel/newsminer
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8: It’s proven to work!
LBNL Study monitors Ten Deep Energy Retrofits (Including two PH projects Both found to perform AS PREDICTED!
Brennan Less & Jeremy Fischer Lawrence Berkeley NaMonal Labs
Source: hip://eetd-‐seminars.lbl.gov/sites/eetd-‐ seminars.lbl.gov/files/ DER_LBNLPresentaMon_Final_Aug2011.pdf
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Case Study #1:
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7: It’s not far off Title-‐24 req’s
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Project: Steiner Residence City: Albany, CA TFArea: 1,448 sf SSHD: 4.43 kBTU/sfyr ACH: 0.5 -‐ 0.7 @50Pa (tbc)
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Architect: Greg Armitage, AIA Builder: Jim Allen, ConstrucMon Etc. CPHC: Heidi Steiner
Image: Heidi Steiner, 2012.
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7: Case Study #1 – Albany, CA
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Typical T-24 Project R-value (hr.ft2°F/ BTU.in) PH Project R-value (hr.ft2°F/BTU.in)
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30
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20 10 0 Windows
Walls
Roof
Floor
Total
Steiner Residence T-‐24 vs PH InsulaMon Value Comparison Data source: Bronwyn Barry, CPHC for Quantum Builders, 2010
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7: Case Study #2 – San Jose, CA
Project: Codianne Miller Residence City: San Jose, CA Area: 2,049 sf (TFA) 2,520sf (Reg) SSHD: 1.84 kBTU/sfyr ACH: (not built) Design+Build:
One Sky Homes
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7: Case Study #2 – San Jose, CA 100
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T-‐24 (R-‐nom)
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PH (R-‐eff) 40
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30 20 10 0 Fndn
Walls
Roof
Windows
Codianne Miller Residence, San Jose, CA One Sky Homes
Data source: Bronwyn Barry, CPHC, One Sky Homes, 2012
TOTAL:
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6: You will acquire new skills
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THERM ANALYSIS: Slab FoundaMon Study For San Jose NZE project: 1: Best case: 0.042 Btu/hr*f*F Ψe (for PHPP)
2: Worst case: (not shown) Ψe (for PHPP)
0.136 Btu/hr*f*F 3. Most effecMve case: Ψe (for PHPP)
Source: THERM analysis by Bronwyn Barry, CPHC, for One Sky Homes, 2012.
0.103 Btu/hr*f*F
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5: AB 32 (2020) and AIA 2030 AB 32 requires California to lower greenhouse gas emissions to 1990 levels by 2020, the equivalent of taking approximately 28 million cars off the naMon's roads. To meet reducMon targets, the California Air Resources Board (CARB), the lead agency responsible for implemenMng the act, is following a blueprint approved in late 2008 known as the AB 32 Climate Change Scoping Plan. The plan lays out the strategy and a comprehensive set of acMons including: Expanding and strengthening energy efficiency programs and building and appliance standards.
Source: hip://www.edf.org/climate/AB32?s_src=ggad&s_subsrc=ab32&gclid=CJrphbG42q0CFQiBhwod03wjCg.
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4: You’ll add new tools to your belt Larkspur Remodel Window Cost Benefit Analysis Brand
Existing
US- Av.
Euro Av.
PH Certified
US -good
US-best
Canadian
R-value W#5
0.99
2.69
5.73
8.68
6.09
8.64
5.9
Heat Dem # (kBTU/ft2yr)
13.7
7.63
6.97
5.71
6.05
8.01
6.75
Price
/
$29,400.00
$45,344.50
$50,830.00
$35,507.42
$92,297.79
$39,852.10
Heat Dem delta
0
6.07
6.73
7.99
7.65
5.69
6.95
$ Saving/a**
0
1,736.02
1,924.78
2,285.14
2,187.90
1,627.34
1,987.70
30yr $saving
0
182.10
57,743.40
68,554.20
65,637.00
48,820.20
59,631.00
40yr $saving
0
69,440.80
76,991.20
91,405.60
87,516.00
65,093.60
79,508.00
yrs to paybk
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16.94
23.56
22.24
16.23
56.72
20.05
30 yr CO2 savings (lbs) ***
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20.03
22.21
26.37
25.25
18.78
22.94
(Highest/Best rating shown in orange field.) * The above revised Sorpetaler cost & rating # reflects the following changes: New TF Design window profile (rated at R8 value.) with triple glazing Double glazed wood Accordian-Sliding door at Dining Room Bug screen for 10 side window units only (no doors.) ** Assuming $0.13 per kBTU/ft2yr (1 Therm = 100,000 BTUs = $1.30 @ 2,200sf =$286.00) *** 11 lbs of CO2 saved for each Therm saved
Source: Cost Benefit Analysis by Bronwyn Barry, CPHC, for Quantum Builders, 2009
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3: Passive is going Massive!
The Ridge, Mixed-‐Use project approved for Philadelphia, PA Onion Flats, Art + Architecture + Building www.onionflats.com Image credits: onion flats
Source: hip://inhabitat.com/the-‐ridge-‐net-‐zero-‐energy-‐mixed-‐use-‐passive-‐house-‐project-‐gets-‐thumbs-‐up-‐in-‐philadelphia/
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3: Passive is going Massive!
The Ridge, Mixed-‐Use project approved for Philadelphia, PA Onion Flats, Art + Architecture + Building www.onionflats.com Image credits: onion flats
Source: hip://inhabitat.com/the-‐ridge-‐net-‐zero-‐energy-‐mixed-‐use-‐passive-‐house-‐project-‐gets-‐thumbs-‐up-‐in-‐philadelphia/
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2: Everybody is doing it!
Zero Coiage, SF
David Baker + Partners Architects www.dbarchitect.com Image credits: David Baker + Partners
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2: Everybody is doing it! Green Gulch Zen Center, Student Housing Marin, CA JSW+D Architects www.jswdarch.com
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Images source: hip://blogs.sfzc.org/blog/2011/10/18/new-‐student-‐housing-‐at-‐green-‐gulch-‐farm/
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Field Chiarello Retrofit, Portola Valley, CA Scoi Schell, EHDD www.ehdd.com
Image credits: www.greatbuildings.com
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2: Everybody is doing it!
Project Green Home, Palo Alto, CA Arkin Tilt Architects www.arkinMlt.com
Image credits: Bronwyn Barry
Source: hip://inhabitat.com/the-‐ridge-‐net-‐zero-‐energy-‐mixed-‐use-‐passive-‐house-‐project-‐gets-‐thumbs-‐up-‐in-‐philadelphia/
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Clarum Homes, Menlo Park, CA
John Suppes, Clarum Homes www.menloparkpassivehome.com
Image credits: www.menloparkpassivehome.com
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2: Everybody is doing it!
One Sky Homes, San Jose, CA
Allen Gilliland, One Sky Homes www.oneskyhomes.com Image credits: Allen Gilliland
1.5: InsulaMon is cheaper than PV
Abatement cost <$50/ton
U.S. mid-‐range abatement curve – 2030
Commercial AfforestaMon of buildings – cropland HVAC equipment Coal power plants– CCS efficiency rebuilds with EOR
Cost Real 2005 dollars per ton CO2e 90
Industrial Fuel economy packages process improve-‐ – Light trucks ments
60 ResidenMal electronics 30
Commercial buildings – Combined heat and power
ResidenMal buildings – LighMng
ResidenMal Coal mining – buildings – Methane mgmt Shell retrofits
AcMve forest management
ResidenMal buildings – HVAC equipment efficiency
Solar CSP
Distributed solar PV
Commercial Nuclear ResidenMal buildings – new-‐ water heaters Control systems build
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Cellulosic biofuels -‐90 Commercial electronics
ResidenMal buildings – New shell improvements Commercial buildings – CFL lighMng
Commercial buildings – LED lighMng
Commercial buildings – New shell Fuel economy packages improvements – Cars
Source: McKinsey analysis
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Onshore wind – High penetraMon
Industry – Combined heat and power
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-‐230 -‐220
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Onshore wind – Low penetraMon
-‐30
-‐120
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Biomass power – Cofiring
ExisMng power plant conversion efficiency improvements
Manufacturing – HFCs mgmt
Industry – CCS new builds on carbon-‐ intensive processes
Coal power plants – CCS new builds with EOR Onshore wind – Medium penetraMon
ConservaMon Mllage
Winter cover crops
AfforestaMon of pastureland
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PotenMal Gigatons/year
Car hybridi-‐ zaMon
Coal-‐to-‐gas shi} – dispatch of exisMng plants Coal power plants – CCS rebuilds
ReforestaMon
Natural gas and petroleum systems management
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Coal power plants – CCS new builds
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1: Free Beer at the meeMngs!
Passive House California, Silicon Valley MeeMng, 2011 Monthly meeMngs: Sunday 3-‐5.30pm in Berkeley, CA
www.passivehousecal.org
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PHCA Highlights for 2012: • • • • •
February MeeMng at Das Haus, Fort Mason, SF Design + Build project with Laney College Shared events with PHNW and NYPH Trainings And a few beers…
THANK YOU!
Bronwyn Barry, Assoc. AIA, CPHC Director, One Sky Homes PHCA President 2012
www.aphnetwork.org
