1 nrcan report anil parekh presented to chba trc march 3, 2010
TRANSCRIPT
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NRCan ReportNRCan Report
Anil ParekhAnil Parekh
Presented to CHBA TRCPresented to CHBA TRCMarch 3, 2010March 3, 2010
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Housing Research ActivitiesHousing Research Activities
OEE Programs Next Generation R-2000 Standard ENERGY STAR for New Homes Next Generation EnerGuide Rating System ecoENERGY Retrofits – Homes program
Research Projects Performance Results of House Mechanicals
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R-2000 Standard RenewalR-2000 Standard Renewal
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R-2000 Standard RenewalR-2000 Standard Renewal NRCan initiated renewal process for the R-2000 Standard.
Vision Provide the home building industry and consumers with a technical standard that
represents the leading edge of commercially-viable new home construction, based on available and proven technology, products, materials and building techniques.
Process and Progress to date: CHBA provided recommendations for enhancements to the Standard. Consultations and committee formation based on a Standard Council of Canada
type of process First meeting of the R-2000 Standard Renewal Committee was held in December
2009. recommended energy efficiency target of 50% better than current R2000 or
ERS-80 impact analysis was presented
Conference calls were conducted in the month of January to complete the review Next face-to-face committee meeting will be in the on March 17 and 18
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ENERGY STAR for New HomesENERGY STAR for New Homes
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ENERGY STAR for New HomesENERGY STAR for New Homes
Common Technical Specification for Ontario Brings together existing technical specifications to
standardize the marketplace No increase to the minimum requirements Public Review December 2009 Currently finalizing the specification
Next Generation ENERGY STAR for New Homes Process to begin in Spring 2010 Consultations and committee formation based on a
Standard Council of Canada type of process
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Next GenerationNext GenerationEnerGuide Rating SystemEnerGuide Rating System
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Development of the Next Development of the Next Generation EnerGuide Rating Generation EnerGuide Rating SystemSystem
NRCan initiated revision process for the EnerGuide Rating System (ERS). Vision
The vision for the next generation EnerGuide Rating System (ERS) process is to develop the most effective energy rating system, supported by the best tools and acceptable to and recognized by all stakeholders.
Parameters able to rate existing and new houses including net zero homes on the same scale only rate energy and factors that are related to energy use in the home ability to account for electrical loads, air conditioning and renewable energy complementary to energy codes. offer stability for stakeholders using the system able to help homeowners make informed decisions
Process and Progress to date: First meeting of the ERS Policy Advisory Committee will be on March 11 and 12. Consultations and committee formation based on a Standard Council of Canada
type of process Completed the background studies Initiated survey of existing stakeholders
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ecoENERGY Retrofits - HomesecoENERGY Retrofits - Homes
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ecoENERGY Retrofits - HomesecoENERGY Retrofits - Homes
Program reach: 2008-09: 257,400 home evaluations and 76,368 received incentives Apr 2009 to Feb 15, 2010: 302,770 evaluations and 162,130 received incentives ecoENERGY total: 581,900 homes evaluated and 256,140 qualified for incentives Popular with homes built before 1990 – almost 88% of all evaluations
Before After
Newfoundland & Labrador 3,219 1,005 0.0%Prince Edward Island 4,118 953 8.5%Nova Scotia 25,648 8,787 7.9%New Brunswick 26,726 9,397 9.2%Atlantic Region 59,711 20,142 7.1%Québec 45,961 18,280 2.1%Ontario 327,029 150,920 8.5%Manitoba 18,551 7,513 4.7%Saskatchewan 41,133 19,832 11.7%Alberta 29,302 11,141 3.1%Prairie Region 88,986 38,486 5.2%British Columbia 59,132 28,192 4.4%Nunavut 40 - 0.6%Northwest Territory 768 67 5.7%Yukon 279 53 2.6%North 1,087 120 3.5%Canada 581,906 256,140 5.8%
% Stock (pre 2000) covered with ecoENERGY Evaluations
Province
ecoENERGY Evaluation
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20000
40000
60000
80000
100000
120000
140000
Be
fore
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45
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45
-19
59
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60
-19
69
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70
-19
79
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80
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89
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90
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99
20
00
-20
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Age Groups
Nu
mb
er o
f H
ou
se E
valu
atio
ns
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Retrofit MeasuresRetrofit Measures Replace heating system with ENERGY STAR qualified model: 67%
installation of 92% AFUE furnace with energy efficient motor Add insulation to attic: 27% Insulate basement: 28% Reduce air leakage (air sealing): 45% Replace windows, doors with ENERGY STAR qualified units: 35%
Homeowners typically undertake more than one action Solar DHW ~ 950 installations GSHP ~ 6,745 installations
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20
00
0
40
00
0
60
00
0
80
00
0
10
00
00
12
00
00
14
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16
00
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00
00
20
00
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22
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24
00
00
Total Number of Homes Retrofitted
Basement Upgrades
Attic Insulation
Above-grade Wall Insulation
Air-Sealing
Space Heating and Hot Water
Windows and Doors
Cooling Systems
Heat Pumps (Air and Ground)
Heat Recovery Ventilation
Number of Homes
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IndicatorsIndicators 581,900 pre-retrofit evaluations since April 1/07
(a total of more than 800,000 homes since 1998)
80 Service Organizations licensed to date 1,880 active energy advisors Available across Canada Target for providing homeowner service within 2 weeks
Energy Efficiency Energy savings ranging from 32 to 98 GJ/year
– average 50 GJ/year/house – about 22% Improvement in Rating – average 10 points
GHG emissions – 3.1 tonnes per house per year Federal incentive ~ $1,400 per house (matching incentives added in
most jurisdictions) Homeowners have 18 months to complete upgrades and apply for grant
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R&D Energy Technology R&D Energy Technology HighlightsHighlights… …
Comparing Comparing Performance of Performance of Mechanical Mechanical SystemsSystems
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Performance of House Performance of House MechanicalsMechanicals Objective
Energy efficiency and system effectiveness performance of residential space heating, hot water and ventilation systems
Three different systems Conventional separate components: condensing furnace,
induced-draft DHW and HRV Combo: boiler, air handler and HRV Integrated Mechanic System (IMS): space heat, hot water and
HRV all integrated in a one unit Method
Side-by-side testing at Canadian Centre for Housing Technology (CCHT)
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Performance Verification atPerformance Verification at
Canadian Centre for Housing TechnologyCanadian Centre for Housing Technology
Government of Canada test facility(www.ccht-cctr.gc.ca)
Research quality testing Side-by-side comparisons Commissioning -> benchmarking -> experiment
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The Standard SystemThe Standard System
condensing natural gas furnace AFUE 90%
power-vented natural gas hot water tank EF of 0.58
heat recovery ventilator (HRV) SRE of 69% at 0 C, and
62% at -25 C
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The Combination SystemThe Combination System
Boiler - 90% AFUE, Energy Star® qualified.
Air handler Pump between storage tank and
boiler Storage tank - 40 G (151L). HRV - SRE - 69% at 0 C, and
62% at -25 C.
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Integrated Mechanical SystemIntegrated Mechanical System Condensing boiler provides
both space heat and hot water (Boiler AFUE 93%)
Integrated air handler has ECM motor
Integrated HRV with sensible recovery efficiency of 60% at 0o C
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Load Profile and Energy UseLoad Profile and Energy Use
Predominantly DHW and ventilation
Part loads: space heat + DHW
+ ventilation
Full loads
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100
200
300
400
500
600
700
800
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Percent of Days Above Given Load
Lo
ad
(M
J/d
ay)
Load Profile Standard System IMS Combo
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Comparison of Standard and IMS
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100
200
300
400
500
600
700
800
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Percent of Days Above Given Energy Use
En
erg
y (M
J/d
ay)
The IMS uses slightly more energy when loads are high
The IMS uses less energy during most of the year.
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Energy Efficiency LevelsEnergy Efficiency Levels
Standard Combo IMSEnergy Use
Natural Gas (MJ) 80,880 89,590 83,370 Electricity (kWh) 2,840 4,670 1,020
Total Energy (MJ) 91,104 106,402 87,042
ComparisonsNatural Gas (MJ) Base 11% 3%Electricity (kWh) Base 64% -64%
Total Energy (MJ) Base 17% -4%
Annual Cost ($) 1,133$ 1,377$ 1,015$ Cost Savings Base 22% -10%
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For More InformationFor More Information CanmetENERGY Research
Anil Parekh at 613 947 1959 ([email protected])
Jamie Glouchkow ([email protected])
Visit our Web site or contact us:www.ecoaction.gc.ca
1-800-387-2000 (publications)
1-800-622-6232 (homes)
ecoENERGY Retrofit program: Martin Gaudet
New Housing Programs: Jennifer Talsma