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1 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Why & How to Build a Zero Energy Ready Home SWEEP, Energy Logic & Department of Energy
Nancy KelloggProgram AssociateSouthwest Energy Efficiency Project
DOE Zero Energy Ready Home
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2 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Regional Energy Efficiency Organizations (REEOs)
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3 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• ZE – Zero Energy• NZE - Net Zero Energy – An energy efficient building that
produces as much energy as it uses annually • ZNE - Zero Net Energy – Same as NZE• ZC - Zero Carbon - A building that produces as much
renewable energy as it uses for the complete “life cycle” (construction, operation, 100-year use and demolition)
• ZEM – Zero Energy Modular• ZER – Zero Energy Ready • ZERH – DOE’s Zero Energy Ready Home – With the
addition of renewable energy can be a ZNE home.
Acronyms What Do They Mean?
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4 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Start with ENERGY EFFICIENCY!Plan - Reduce energy use – Monitor – Add Renewable Generation
• Zero Energy Building (ZEB) An energy-efficient building where, on a source energy basis, the actual annual delivered energy is less than or equal to the on-site renewable exported energy. *
• Zero Energy Campus An energy-efficient campus where, *• Zero Energy Portfolio An energy-efficient portfolio where, Zero
Energy Community An energy-efficient community where, *
https://www.energy.gov/eere/buildings/downloads/common-definition-zero-energy-buildings
Definitions for Zero Energy Buildings
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5 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Looks Good Not Energy Efficient
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6 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Lower Ownership Cost For All– Monthly Cash-Flow Reduced Utility Costs– Lower Maintenance & Operational Costs– More Durable and Resilient – Reduced Healthcare Costs
• Better Experience– Health – Comfort– Water – Quality– Reduced Air Pollution
Why ZERH Attainable Housing?
One in ten Coloradoans are Severely Cost Burdened , Spending 50% or More of Their Income on Housing
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7 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Higher health care cost due to poor indoor air• Renters, experience higher-than-average energy
burdens.• Split incentive to improve housing for renters• Utility bills are one of the top reasons for bankruptcy• Homelessness is on the rise• Social inequity • …will know a lot more about
Health Risks
Society is cost burdened as well
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8 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• LEAP Low-income Energy Assistance Program• Xcel Energy• Energy Resource Center• Xcel Energy Colorado Medical Exemption Program
(CMEP)• Colorado Energy Office• Energy Outreach CO• Faith organizations
Pay Now or Pay Later
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9 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
1. Goal to build homes the lowest cost utilities bills possible
2. Decided to build all electric, Zero Net Energy homes
3. Signed on with the DOE ZERH program
Roaring Fork Valley Habitat for Humanity
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10 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Basalt Vista
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11 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Thank You
For More Information:www.buildings.energy.gov/zero/
Email Contact:[email protected]
Questions?
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12 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
The Future is Energy Positive!
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1 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Why Zero Energy Ready Home is Affordable
DOE Zero Energy Ready HomeHousing Colorado Webinar – Sept. 5, 2019
SAM RASHKINDOE Building Technologies Office
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2 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Zero Energy Ready Home:1. Affordability New Reality2. Specifications: Easy Lift from Energy Star3. Getting Started
Outline
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3 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Why Zero Energy Ready Home is Affordable
1. Affordability New Reality
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4 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Image Basis: Building Energy Codes Program: National Benefits Assessment, 1992-2040, https://www.energycodes.gov/sites/default/files/documents/BenefitsReport_Final_March20142.pdf
1970 2015
2006IECC
100
40
Comfort, Maintenance, Health Challenges
Affordable Housing New Reality
EUI(1975 = 100)
Improvement in Code(1975-2015)
38%38%2009IECC
2012IECC
2015IECC
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5 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
New Reality Affordability Question
Are homes affordable if they don’t help minimize:
• Comfort Expenses;
• Maintenance Expenses; and
• Health Expenses
…while Optimizing Future Value?
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6 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Minimizing Comfort Expenses
More Air Flow,
Shorter Swing Seasons
LessAir Flow,
Longer Swing SeasonsWarm
Side
More EfficientEnclosure
Less EfficientEnclosure
Thermal/Air Flow
Thermal/Air Flow
Cold Side
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7 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Minimizing Maintenance Expenses
Colder Surface
Less Wetting, More Drying
MoreWetting, Less Drying
More EfficientEnclosure
Less EfficientEnclosure
Thermal/Air Flow
Thermal/Air Flow
Warm Side
Cold Side
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8 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Minimizing Health Expenses
LessAccumulated Contaminants
MoreAccumulated Contaminants
More EfficientEnclosure
Less EfficientEnclosure
Thermal/Air Flow
Thermal/Air Flow
Warm Side
Cold Side
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9 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Step One:Optimize EfficiencyEnergy Efficient
Enclosure
Energy Efficient Components
Step Two:Do No Harm
Comprehensive Water Protection
Ensured Comfort System
Comprehensive Indoor Air Quality
Step Three:Ensure
Zero ReadySolar Ready Construction
Optimizing Affordability
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10 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Why Zero Energy Ready Home is Affordable
2. Specifications:The Easy Lift from ENERGY STAR
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11 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Eligible Building Types
• SFD and SFA dwellings
• MF buildings up to 5 stories• Central HVAC & DHW allowed
• Focus is New Construction; Substantial Rehabs can be qualified;
Same as ENERGY STAR:
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12 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
IECC 2015Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Context…
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13 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
IECC 2015Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Stepping up to ZERH…
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14 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Target Home Sets HERS Value
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15 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Typical ZERH HERS Threshold
45.0
50.0
55.0
60.0
65.0
70.0
1 2 3 4 5 6 7
HER
S Inde
x
Climate Zone
Average DOE Challenge Home HERS Index by Climate Zone(Overall Average = 55.5)
Based on 1800, 2400, and 3600 ft 2 prototypes on climate‐appropriate foundations.
Typical DOE ZERH-Compliant HERS Index by Climate ZoneApprox.
Range for ENERGY
STAR v3.0
Approx. Range for ENERGY
STAR v3.1
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16 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• 236,000+ HERS Ratings
• 61 Avg. HERS Index
• ~85,000 Homes Ready for ZERH
Source: “Demand for HERS Continues to Grow: Over 236,000 Homes HERS Rated in 2018,” RESNET blog, January 17, 2019
Market Ready for ZERH
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17 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
“I couldn’t afford to pay for rent and groceries and gas [before owning my Zero Energy Ready Home].”
Cold Climate, Affordable: HERS -1
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18 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Warm Climate, Affordable: HERS 49
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19 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Cold Climate, ProductionHERS 3 (low 40s w/o PV)
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20 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
IECC 2015Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Stepping up to ZERH…
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21 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Compliance with next generation code
• Three Options for Compliance: Prescriptive Alternative equivalent U-factor Total UA calculation
- allow for modest trade-offs of insulation levels from one part of the envelope to others.
2015 IECC Insulation
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22 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
CZ 4 CZ 5
Walls R-20 or R-13+5
Ceiling R-49Floor R-19 R-30
Basement R-10/13 R-15/19Crawl Space R-10/13 R-15/19
Slab R-10 for 2’ Deep
2015 IECC Insulation
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23 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
High-R Wall Options
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24 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Advanced Framing with Thicker Wall– 2x6 construction– Staggered studs (2x4) with 2x6 plates
• Rigid Insulation Exterior Sheathing– Continuous Rigid Insulation w/Sheathing– Continuous Rigid Insulation w/o Sheathing
• Structural Insulated Panels (SIPs)• Insulated Concrete Forms (ICFs)• Double Wall
High-R Wall Options
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25 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
High Performance Windows
ENEGY STAR Window Specs to
Apply to DOE Zero Energy Ready
Home Projects1
Hot ClimatesIECC CZ 1-2
Mixed ClimatesIECC CZ 3-4 except
Marine
Cold ClimatesIECC CZ 5-8
and 4 Marine2
U-Value SHGC U-value SHGC U-Value SHGC
0.40 0.25 [CZ 3] 0.30[CZ 4] 0.30
[CZ 3] 0.25[CZ 4] 0.40
0.30 0.310.32
Any ≥0.35≥0.40
1. DOE Zero Energy Ready Home offers multiple compliance paths including area weighting and allowances for passive solar design. See the National Program Requirements, Exhibit 1 with footnotes, for details.
2. These U & SHGC values are based on the ENERGY STAR v5.0 Window Specifications. DOE ZERH will review the feasibility of adopting ENERGY STAR v6.0 Window Specifications, which entail lower U values, periodically. Any program update to require the v6.0 window specs will be announced with a minimum 1-year phase-in.
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26 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
IECC 2015Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Stepping up to ZERH…
Pre-requisite for DOE ZERH
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27 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
95% Condensing FurnaceX
60% Efficient Duct Distribution
Duct Performance Importance
80% FurnaceX
90% Efficient Duct Distribution
57% System Efficiency 72% System Efficiency
Cooling:
If we’re using a SEER 21, variable speed A/C system…- SEER 21 has twice the run time vs a SEER 13 system- Ducts in conditioned space: SEER 21 gives 40% savings- Ducts not in conditioned space: just 27% savings
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28 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Ducts in Unvented AtticUnvented Crawl Sp./Basement
Optimized Duct Location Options
Ducts in Vented Attic
Mini‐split Systems
Buried DuctsModified Attic TrussDropped Ceiling
Ducts in Conditioned Space
Ducts Between Floors
Ductless Systems
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29 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Short Duct Run up to 10’ of total length is permitted to be outside of the home’s thermal and air barrier boundary.
• Jump Ducts may be located in attics if all joints, including boot-to-drywall, are fully air sealed with mastic
Optimized Ducts Exemptions
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30 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
IECC 2015Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Stepping up to ZERH…
IAP Certification
Pre-requisite for DOE ZERH
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31 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Comprehensive IAQ
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32 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Required for Moisture Control:A. Gas Permeable Layer
(min. 4” clean gravel)B. Plastic Sheeting
(under slab)C. Sealing and Caulking
(all openings in concrete floor)D. Vent Pipe
(3 or 4 inch PVC pipe)E. Junction Box
(if fan needed later)
Radon Resistant Construction
Radon Test Kits Not Required
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33 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Note: these maps indicate average risk by county. However, High levels of Radon can be found in any home.
Surgeon General’s Warning:Radon Causes Lung Cancer
Radon Zones in U.S.
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34 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Screened Openings for Pests
Corrosion-proof rodent/bird screens for openings(e.g., copper or stainless steel mesh)
Exception: clothes dryer vent
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35 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Low Emission Materials
• Low formaldehyde pressed wood
• Low formaldehyde cabinets
• Low VOC paints
• Low VOC carpet, padding, adhesives
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36 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Low emission materials and products are rapidly evolving
• Labels & certifications can be challenging to navigate
• To help partners identify sources and spec products, a new IAP resources is available:
Low-Emission Product Resource
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37 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Certified CO Alarms & ETS
CO Alarm Enforceable policy inMulti-family buildings
Combined CO & Smoke Alarm
CO Alarm in each bedroom area
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38 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Automatically closing, gasketed door
Attached Garage Isolation
IF house has exhaust-based WHMV system, then:a. Install garage
exhaust fan,OR
b. House WRT garage ≥ 45 Pa, when house is + 50 Pa relative to outdoors
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39 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Source: Construction Instruction
No Air Handler in the Garage
Attached Garage Isolation
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40 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
HVAC Duct Design & Materials
No Building Cavity Ducts
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41 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
8 MERV Filter Minimum
High-MERV HVAC Filter
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42 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Install equipment with sufficient latent capacity to maintain indoor RH ≤ 60%.
Dehumidification (Warm-Humid CZs)
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43 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Also recommended in 3A (above white
line) & 4A
Dehumidification (Warm-Humid CZs)
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44 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
IECC 2015Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Stepping up to ZERH…
Pre-requisite for DOE ZERH
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45 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Components and MEL’s are increasingly larger part of total energy use in low-load homes (~50%).
Efficient Components
Heating & Cooling
Hot WaterMEL’sLighting & Appliances
Energy Use - Then Energy Use - Now
Key:
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46 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Zero Energy Ready Home requires:• ENERGY STAR Certified Appliances:*
refrigerators, dishwashers, clothes washers• ENERGY STAR Certified Fans*:
bathroom ventilation, ceiling fans• ENERGY STAR Certified Lighting:
Min. 80% of fixtures or lamps (CFL or LED)• Efficient Hot Water Distribution …or…
Efficient Water Heater + WaterSense Showerheads and Bath Faucets
*Only where installed by builder
Efficient Components
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47 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Stepping up to ZERH…
IECC 2015Enclosure
Pre-requisite for DOE ZERH
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48 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Solar Electric Ready Requirements
Dedicated Area for installing inverter and balance of system
Conduit to run DC wire from roof to inverter
Conduit to run AC wire from inverter location to electric panel
Circuit Breaker designated and/or installed for use by the PV system in the electric panel
Documentation of the maximum allowable dead load and live load ratings of the existing roof (Rec DL.: +6 lbs./sq. ft.)
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49 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
PV-Ready Checklist Applicability
Solar Ready Encouraged
Enco
urag
edR
equi
red
Solar Ready Required
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50 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Not required if significant solar resource not accessible:• Tree Shading• Tall Buildings• Available South Facing Roof
PV-Ready Allowances
Multifamily Building Allowances:• PV-ready features may be
provided for the common space instead of at the dwelling level
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51 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
IECC2012
ENERGY STAR v3
ENERGY STAR v3.1 ZERH
HERS 70-80
HERS 65-75
HERS55-65
HERS 48-55
IECC 2012 Enclosure
IECC 2009 Enclosure
IECC 2012Enclosure
Independent Verification
Independent Verification
Independent Verification
Water Management
Water Management
Water Management
HVAC QI with WHV
HVAC QI with WHV
HVAC QI with WHV
Optimized Duct Location
EPA Indoor Air Package
Eff. Comps.& H2O Distrib.
Solar Ready
Stepping up to ZERH…
IECC 2015Enclosure
Pre-requisite for ZERH
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52 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Added Costs?
“It depends”• Base energy code?• ENERGY STAR v3.1?• Is the Affiliate already including…
– Passive Radon Reduction? (Zone 1)– Dehumidification? (Hot/Humid)– Optimized duct location?
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53 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Compares ZERH costs and savings relative to 2009 and 2012 IECC code-min. homes
• In all scenarios, monthly energy savings greater than additional monthly mortgage
• Available on ZERH website under Resources
Cost Analysis
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54 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
DOE Zero Energy Ready HomeCost Factor Estimated Benefits
Added First Cost1, 2 $1500 - $5000Added First Cost, Amortized3 $7 - $25/month
Energy Savings4 $50/month
Homeowner Net + $25 - $43/month$10,000’s over 30-yr. loan
Non-Energy Cost Savings• Lower Health Cost• Lower Maintenance• Greater Future Value
1. Beyond minimum code home based on a DOE ZERH Case Study for a Florida affiliate & DOE Energy & Cost Savings Analysis2. Does not account for federal tax credits, rebates, or in-kind product or labor.3. 4% interest rate, 30-year fixed mortgage4. Compared to code minimum home based on 3 Case Studies of DOE ZERH-qualified Habitat Homes (all in FL)
Net Cost Example
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55 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
Why Zero Energy Ready Home is Affordable
3. Getting Started
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56 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
• Same rater network
• Same modeling software (at least 3 different options)
• Same plan review & site inspection protocol
ENERGY STAR & DOE ZERH
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57 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
ZERH Partner Process
• Become a partner online (builder or rater)• No need to pre-register projects• No program certification fees• Recommend integrated design process (MEPs)• Rater: plan review & site inspections• Project Certification - Rater compliance report
from modeling software to RESNET Registry• Builder credited with certified home on DOE
website
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58 | INNOVATION & INTEGRATION: Transforming the Energy Efficiency Market Buildings.Energy.gov
www.buildings.energy.gov/zero/• Become a Partner• Program Specs• DOE Tour of Zero• 24+ Recorded Webinars• Marketing Tool Kit
Contact: [email protected]
Resources and Next Steps
Thank You!
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Colorado Housing ZERH
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Berthoud, Colorado-based EnergyLogic is a software and building consulting company that has provided expert resources, education and support to new home builders and energy raters involved in the construction of high-performance homes since 2006.
About
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Mandatory Sections
• HERS Index• Minimum Rated Features
• IECC / Energy Star / DOE ZERH• Thermal Envelope• Mechanical • Water Management
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Third Party Consulting and Verification
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Mandatory Requirements
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H-QUITO• Currently ACCA and Advanced Energy are the only national EPA–recognized
third–party training and oversight organization
http://www.advancedenergy.org/qap/how_to_participate.php
http://qacontractors.org/new-homes/
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Purchasing Issues• Indoor Air Plus building specifications
• Product binder review per project
• Energy Star product sourcing• Windows• Fans• Appliances
• Hot water distribution/circulation• DOE / EnergyStar/ IAP Partnerships/ID numbers• HVAC Contractor Credentialing
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Design Issues• Proper HVAC Design due to reduced load
• Ducts in conditioned space requirement• Depiction of the thermal envelope
• Plan set requirement in the IECC• Air barrier details
• Plan set requirement in IECC• Energy and water management specification and details• Framing details
• Corners and Headers
• PV panel load or actual load
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Field Issues• Projected HERS Analysis qualification• Code and Energy Star air barrier and insulation installation mandatory requirements• Energy Star other mandatory Checklist requirements• Indoor Air Plus field checklist• Ducts in conditioned space• Hot water distribution• PV Ready Checklist or installed PV specifications• Communication from purchasing/decision maker to Construction Manager and trade
partners• DOE Builder #
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Robby SchwarzEnergyLogicPrincipal/Director of Builder [email protected]