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High Performance Design
in Oregon, Two Regional
Case Studies
AFE 2.0
December 7, 2016
Presentation Agenda
Unitarian Universalist Fellowship of
Central Oregon – Bend, OR
2:00 -3:00 pm Presentation by Jonah
Cohen (Hacker) Marc Brune (PAE),
including brief audience Q&A
Cowhorn Vineyard – Jacksonville, OR
3:00 – 4:00 pm Presentation by Erica
Dunn and Alex Boetzel (Green Hammer)
including brief audience Q&A
Panel Discussion and audience Q&A
with both presentation teams
4:00 – 4:30 pm
Networking and Reception
4:30 – 5:00 pm
High-Performance Design in Oregon
Lessons from the Unitarian Universalist Fellowship of Central
Oregon December 7, 2016
Jonah Cohen
Unitarian Universalist Fellowship of Central Oregon
Design Team
• Architect: Hacker
• Landscape Architect: Walker Macy
• Structural: Walker Engineering
• MEP/Lighting: PAE/Luma
• Sustainability: Vidas Architecture
• Acoustics: Listen
• Inter. Furnishings: Deca/Steele Assoc.
• Civil: D'agostino, Parker
• Owner’s Rep Marino Consulting
Sustainable adjective sus·tain·able \sə-ˈstā-nə-bəl\
Simple Definition Able to be used without being completely used up or destroyed Involving methods that do not completely use up or destroy natural resources Able to last or continue for a long time
Unitarian Universalist Principles 1st Principle: The inherent worth and dignity of every person 2nd Principle: Justice, equity and compassion in human relations 3rd Principle: Acceptance of one another and encouragement to spiritual growth in our congregations 4th Principle: A free and responsible search for truth and meaning; 5th Principle: The right of conscience and the use of the democratic process within our congregations and in society at large 6th Principle: The goal of world community with peace, liberty, and justice for all 7th Principle: Respect for the interdependent web of all existence of which we are a part.
Unitarian Universalist Principles 1st Principle: The inherent worth and dignity of every person 2nd Principle: Justice, equity and compassion in human relations 3rd Principle: Acceptance of one another and encouragement to spiritual growth in our congregations 4th Principle: A free and responsible search for truth and meaning; 5th Principle: The right of conscience and the use of the democratic process within our congregations and in society at large 6th Principle: The goal of world community with peace, liberty, and justice for all 7th Principle: Respect for the interdependent web of all existence of which we are a part. 8th Principle: Unitarians employ very unique Principles of Democracy and Universal Consensus
ASPIRATIONS OF OUR NEW HOME
• Warm, Inviting, and Welcoming
• Nourishes our Spirituality
• Supports Connections Within Our Congregation
• Encourages Life Long Discovery, Curiosity, and Creativity
• Respectful of and Connected to Nature
• Imbued with Natural Light and Fresh Air
• Exemplar of Meaningful Sustainability
• Gracefully Adapts to Our Growth
• Enduring and Easy to Maintain
• Highly Functional and Universally Accessible
• Maximizes Value within our Resources
• Serves Our Greater Community
• Reflects Unitarian Universalist Principles
’
Unitarian Universalist Fellowship of Central Oregon Sustainability Concepts and Applications
December 7, 2016 Presented to Energy Trust of Oregon by Marc Brune, PE, Associate Principal
Holistic Approach to Passive Design
Six Steps
Set Inspiring Goals
Net Zero Ready – BHAG: Big Harry Audacious Goal
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
50.00
Average Building(Energystar Target Finder
50)
Likely Code Building Energy Star Architecture 2030 Net Zero with 50% RoofCoverage
Net Zero EUI
Arch 2030 EUI
Energy Star EUI
Benchmark EUI
Regional Average
Electricity Usage
Natural Gas Usage
$13,000/yr
$11,000/yr
$9,000/yr
$5,000/yr
Analyze the Climate
Typical Building No Heating or Cooling Zone
Cold Winter Design: ~5F Summer Design: ~93F
Analyze the Climate
Optimizing Passive Solar
Analyze the Climate
Optimizing Passive Solar
Analyze the Climate
Optimizing Passive Solar
Analyze the Climate
Optimizing Passive Solar
Analyze the Climate
Optimizing Passive Solar
Analyze the Climate
Optimizing Passive Solar
Loads = Peak Power Requirement on worst day. Think acceleration power.
Loads vs. Energy Use
Energy Use = Energy consumed over the whole year Think of spending on gasoline.
Energy use will follow naturally
Typical Design Condition
Typical Design Condition
Reduce Loads
Summer Shading
Reduce Loads
Mass Walls
Reduce Loads
Thermal Mass
Reduce Loads
Thermal Mass
76
74
72
70
68
66
64
62
60
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Daily Temperature Swing
Zone A
ir T
em
pera
ture
Reduce Loads
Rules of Thumb: - 2x Floor Area - 3” Deep
Daily temperature profile applied to top surface
1’ thick simulated concrete slab
Reduce Loads
Lighting
Incandescent Compact Fluorescent
LED
Reduce Loads
Lighting
0
0.5
1
1.5
2
2.5
3
1980 1985 1990 1995 2000 2005 2010 2015 2020
w/s
f
UUFCO ~0.6 W/SF
1985
Reduce Load & Energy Use
Envelope
Building Element Parameter 2010 Oregon Energy Code
Proposed Building Percent Better
than Code
Roof
Type Attic Insulation above roof
46% Minimum Insulation R-21 R-38
Maximum U-Value 0.048 0.026
Walls
Type Lightweight
42% Minimum Insulation R-13 + R-3.8ci
Maximum U-Value 0.064
Vertical Glazing
Type Non-metal framing
0% U-Value 0.46 0.46
SGHC 0.4 0.4
Slab On Grade
Heated Heated
R-15 for 24” R-15 for 24”
Choose Efficient Systems
Variable Speed Air Source Heat Pump
Choose Efficient Systems
Heat Recovery
Choose Efficient Systems
Heat Recovery
Reduce Loads
Thermal Comfort
Phase Changing Materials
Choose Efficient Systems
Choose Efficient Systems
Radiant Heating / Cooling Floor
Anticipated Energy Use
Energy Results
$19,000 annual energy cost savings from code baseline
Actual Energy Use
0
5
10
15
20
25
30
Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17 Jul-17 Aug-17 Sep-17
TO
TAL E
NERG
Y (
KBTU
/SF)
Electricity Gas Modeled Electricity Modeled Gas
Actual Energy Use
0
5
10
15
20
25
30
Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17 Jul-17 Aug-17 Sep-17
TO
TAL E
NERG
Y (
KBTU
/SF)
Electricity Gas Modeled Electricity Modeled Gas
Integrate Renewables
Solar Energy, Rain, Geothermal and Wind
Integrate Renewables
Commercial Building: NZE
Site EUI (kBtu/ft2/yr)
29
27
25
23
21
18
16
14
12
Assumptions: • 50% of Roof area available
for PV • 20% Efficient PV panels • 2 floor Credit: Marjorie Schott/Shanti Pless/ Paul Torcellini NREL
Integrate Renewables
Dollars per PV-Watt
$0
$2
$4
$6
$8
$10
$12
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
$/P
V-W
att
Insta
lled C
ost
Integrate Renewables
Integrate Renewables
Energy Form Source Energy Conversion Factor ( r )
Imported Electricity 3.15
Exported Renewable Electricity 3.15
Natural Gas 1.09
Fuel Oil (1,2,4,5,6, Diesel, Kerosene)
1.19
Propane & Liquid Propane 1.15
Steam 1.45
Hot Water 1.35
Chilled Water 1.04
Coal or Other 1.05
Integrate Renewables
~80 kW PV array needed for zero energy operation 4,300 SF
Creating a better environment
Marc Brune PE
Associate Principal [email protected] 503–226–2921 522 SW 5th Ave, Suite 1500 Portland, OR 97204
Questions?
AFE 2.0 | High Performance Design in Oregon
COWHORN VINEYARD AND GARDEN TASTING ROOM
COWHORN VINEYARD + GARDEN
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
DESIGN
SUSTAINABLE STRATEGIES
Path to
Net Zero
PASSIVHAUS APPROACH
Passivhaus as a Path to Net Zero
1. Minimize Loads
• Insulation & Airtightness
• Heat-Recovery Ventilation
• Exterior Shading
2. Simple, Efficient Systems
• Minimized Loads allow Simple, Affordable Systems
3. Renewable Supply
• Loads can be met with Sustainable Energy Grid
• Net Zero within Reach (now or later)
• “Winter Gap” is minimized
PASSIVHAUS APPROACH
Passivhaus as a Path to Net Zero
Invest in this… …so we can heat like this (especially when solar power isn’t there)
PASSIVHAUS APPROACH
Envelope Investment Opportunity
Residential Building Energy Use
We typically have one opportunity to address
40-50% of a building’s lifetime energy use
Building Component Lifespans
PASSIVHAUS APPROACH
Benefits
• Health
• Comfort
• Durability
• Resiliency
• Energy Savings
PASSIVHAUS APPROACH
PASSIVHAUS APPROACH
Impact on Design
Deep walls and roof assemblies
Walls = 19” R-value = 60
Roof = 28” R-value = 96
PASSIVHAUS APPROACH
Impact on Design
Breathable Envelopes in High Performance Buildings
PASSIVHAUS IN DETAIL
Details: Thermal Bridge-Free + Airtightness
PASSIVHAUS IN DETAIL
Details: Thermal Bridge-Free + Airtightness
PASSIVHAUS IN DETAIL
Details: Thermal Bridge-Free + Airtightness
PASSIVHAUS IN DETAIL
HVAC Systems for low-load buildings
PASSIVHAUS IN DETAIL
PH Challenges during Construction
New Assemblies
• Mock-ups
• Pre-Construction Meetings
PASSIVHAUS IN DETAIL
PH Challenges during Construction
Air-tightness
• Signage
• QC
PASSIVHAUS IN DETAIL
PH Challenges during Construction
Avoiding thermal bridges
• Sequencing
• QC and Thermal Imaging
PASSIVHAUS IN DETAIL
Energy Model Results and Incentives
• 51% Energy Savings over baseline using code-minimal heat pump
• 68% Energy Savings over baseline using code allowed electric resistance
LIVING BUILDING CHALLENGE
Material Selection Process
MATERIALS PETAL IN DETAIL
MATERIALS PETAL IN DETAIL
LBC Challenges during Construction
• PVC is in everything!
QUESTIONS
