Active UES Proposal Presentation to the Regional Technical Forum
April 17, 2012
Project Sponsor:
Bonneville Power Administration
Presentation by:
Ben Larson, Ecotope and
Tom Hewes, Northwest Energy Works
UES Analysis by: B. Larson
RTF Staff Review by: A. Hadley
Presentation by: B. Larson, T. Hewes

• Measure name: High Performance Manufactured Homes
(HPMH)
• Measure sponsor: Bonneville Power Administration
• Measure description:
– Construction of and installation of lighting and appliances in new, manufactured homes in accordance with the High
Performance Manufactured Home Specification Measure type:
UES
• Requesting Status: Approved
• Change in measure status: Yes (proposed  active)
• Change in measure savings: No
• Change in measure cost effectiveness: No
• Other or follow-on work for RTF: No
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(Northwest Energy Efficient Manufactured Home)
• Built on a 25 year history of partnership with regional utilities
• Support the promotion of energy efficient manufactured homes
• NEEM is a joint energy efficiency program between the regions utilities and the regional manufactured home industry
– The region’s 10 HUD (Manufactured home) and Modular (factory-built to local code) prefab builders build to NEEM specs
– NEEM is supported by 74+ utilities in the PNW and California
– NEEM has a set of factory quality management procedures and inspections
– Northwest Energy Works (NEW), NEEM central administrator

Problem Statements: Motivating a new Program
• NW has been focused on manufactured housing market for over two-decades
• Over 155,000 or 68% of all new manufactured homes built since 1989 have constructed to high efficiency standards
• Despite a $1000 per home corporate tax credit for
Energy Star, little market transformation has occurred outside PNW
• Market transformation progress in the PNW is sliding due to market pressure from outside the region
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• HPMH development funded by Bonneville Power
Administration
– Goals of the project are to get deep energy savings in this housing sector
– Program to be integrated into the existing NEEM infrastructure
• Proposed Approach
– Develop a specification to address all aspects of home energy use
– Provide a forum for regional equipment initiatives
– Develop a new market for manufactured homes
– Provide large, cost-effective, electric savings
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• NEEM participation dropped significantly at the end of MAP, and Energy
Star participation elsewhere in the country has rather minimal market share in the absence of incentives.
• Therefore, the baseline is likely to contain no
EnergyStar houses and only contain current market (non-NEEM) standard practice
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• Uo is the coefficient of heat transmission for the entire structure
– (Btu/hr-ft 2 -°F)
– Conductivity per square foot of building envelope
– Not including infiltration and ventilation
• “HUD+” is the current NW baseline based on current market research by WSU and NEW
Northwest Specific Uo Values
Type Comments
HUD Federal Maximum
“HUD+” Northwest Baseline
NEEM
HPMH
Northwest Energy Efficient Manufactured Home
High Performance Manufactured Home (Super NEEM)
Uo
0.079
0.065
0.054
0.040
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Manufactured Homes Specifications Overview
Component
Envelope
Ceiling
Wall
Window U-Value
Glazing %
Door
Floor
Infiltration
Ventilation
Uo
HVAC
Heating System
Cooling System
Supply Duct Leakage
Return Duct Leakage
DHW
Water Heater
Shower Head
Lighting
LPD
Appliances
Dishwasher
Refrigerator
Units
R-Value
R-Value
U-Value
% of CFA
U-Value
R-Value
ACH 50
Exhaust Fan
Btu/hr-ft
2
-°F
EF gpm
W/ft 2
Baseline
"HUD+"
R22
R11 -- R21
0.4
12%
0.2
R19
4.8
Market Base
0.065
Electric FAF
% system flow none
12.5%
% system flow None - Interior
0.9 EF
2.5
1.4
Market Base
Market Base
NEEM
R38
R21
0.34
12%
0.2
R33
3.9
EnergyStar
0.054
Electric FAF none
5%
None - Interior
0.93 EF
2.5
1.4
Market Base
Market Base
HPMH
"Super NEEM"
R45
R21 + R5 Foam
Sheathing
0.22
12%
0.2
R38
3.0
EnergyStar
0.040
DHP HSPF 10 &
Wall Heaters
DHP SEER 20
No Ducts
No Ducts
HPWH
1.75
0.6
EnergyStar
EnergyStar 8

• Lighting calculated with LPD method
• Appliance savings from existing RTF measures
• Calibrated SEEM runs for estimating
– heating, cooling, ventilation, and DHW
• DHW energy use
– Parallel analysis to HPWH presented in 2011

• Heating, cooling, ventilation, and DHW energy use calculated with SEEM
– DHP Modeling methodology from NEEA Ductless Heat Pump Impact
& Process Evaluation: Field Metering Report
• Field findings: DHP heats differing house fraction based on climate
– HZ1: 74%, HZ2: 63%, HZ3: 45%
• Calibrated SEEM to pre/post DHP installation periods at 91 houses
– Unique simulations created for each house based on detailed audits
– Note: energy uses here not reflective of DHP program savings – they are only applicable here as a calibration exercise
Method
Pre-Installation Billing Data
Pre-Installation SEEM 66.8
° F Setpoint
Post-Installation Metered Data
Post-Installation SEEM 69.5
° F Setpoint
Heating Energy Use (kWh/yr)
Mean SD
9347
9331
6484
6466
3892
4135
3894
3151
N
91
91
91
91
– HPWH Modeling based on SEEM simulated annual crawl space temperature profile and HPWH COP map
• HPWH installed in sound-attenuated, buffered closet which draws air from crawl space and exhausts outdoors 11

• Total Package Cost 2006 $s: $9,205
– See workbook “CostSummary” & “CostData” tabs
• Measure Life: ~36-39 years
– Shell:
– DHP:
– Ventilation Fan:
– DHW:
– Lights:
45 years
20 years
20 years
15 years
7.6 years
– Appliances:
• Sunset Criteria:
16 years
– Measure shall sunset at the end of 2013, at which time the lighting savings UES component of the measure shall be reevaluated against the changing federal lighting standards.
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Manufactered Home Annual Energy Savings (Prototype Weighted)
12 000
10 000
8 000
6 000
4 000
2 000
0
CZ1 CZ2 CZ3 CZ1 CZ2 CZ3 CZ1 CZ2 CZ3
HZ1 HZ1 HZ1 HZ2 HZ2 HZ2 HZ3 HZ3 HZ3
HPMH to Baseline 7 970 7 867 7 703 10 021 9 924 9 765 10 932 10 844 10 699
B/C Ratio for HPMH over Baseline
3,0
2,0
1,0
0,0
CZ1
HZ1
CZ2
HZ1
CZ3
HZ1
CZ1
HZ2
CZ2
HZ2
CZ3
HZ2
CZ1
HZ3
CZ2
HZ3
CZ3
HZ3
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Climates
Heating Cooling
HZ2
HZ2
HZ3
HZ3
HZ3
HZ1
HZ1
HZ1
HZ2
CZ1
CZ2
CZ3
CZ1
CZ2
CZ3
CZ1
CZ2
CZ3
Total Annual Energy Use (kWh/yr)
HPMH
Baseline
"HUD+"
NEEM "Super
NEEM"
15,836
15,836
12,957
12,957
7,867
7,969
15,836
19,597
19,597
19,597
12,957
15,567
15,567
15,567
8,133
9,576
9,673
9,832
22,558
22,558
22,558
17,570
17,570
17,570
11,626
11,714
11,859
Savings
(kWh/yr)
HPMH to
Baseline
7,970
7,867
7,703
10,021
9,924
9,765
10,932
10,844
10,699
B/C
Ratio
(yrs)
Measure
Life
2.1
2.1
2.4
2.4
2.3
1.7
1.7
1.7
2.2
38
38
39
39
39
36
36
36
38
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Manufactured Home Total Energy Use (Prototype Weighted)
24 000
22 000
20 000
18 000
16 000
14 000
12 000
10 000
8 000
6 000
4 000
2 000
0
CZ1
HZ1
CZ2
HZ1
CZ3
HZ1
CZ1
HZ2
CZ2
HZ2
CZ3
HZ2
CZ1
HZ3
CZ2
HZ3
Baseline
"HUD+"
NEEM
HPMH
"Super NEEM"
CZ3
HZ3
15 836 15 836 15 836 19 597 19 597 19 597 22 558 22 558 22 558
12 957 12 957 12 957 15 567 15 567 15 567 17 570 17 570 17 570
7 867 7 969 8 133 9 576 9 673 9 832 11 626 11 714 11 859
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House Energy Use By Category
• Significant reductions in space heating, water heating, and lighting over both “HUD+” baseline and NEEM.
– Big savings from
• wall sheathing,
• triple-glazed windows,
• DHPs,
• HPWH, and
• lighting improvements
24000
22000
20000
18000
16000
14000
12000
10000
8000
6000
4000
2000
0
CZ2
HZ1
CZ2
HZ2
CZ2
HZ3
HVAC
DHW
Lights
MELs
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“I _________ move that the RTF approve the
UES for High Performance Manufactured
Homes with provisional status which will sunset at the end of 2013.”
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• Northwest Energy Works
Tom Hewes tom@northwestenergyworks.com
888.370.3277 x101
Brady Peaks brady@northwestenergyworks.com
888.370.3277 x102
• Bonneville Power Administration
Mark Johnson mejohnson@bpa.gov
503.230.7669
• Ecotope
Ben Larson ben@ecotope.com
206.322.3753 x207
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