1 retail plug-load portfolio (rpp) program proposed basic tier product uess em&v and residential...
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Retail Plug-Load Portfolio (RPP) Program
Proposed Basic Tier Product UESs
EM&V and Residential Program TeamsSeptember 24, 2015
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Retail Plug-Load Portfolio (RPP)Meeting Agenda
Topic Presenters
UEC/UES: Product Specific Calculation Methodologies and Values
Jia Huang, PG&E;Andrea Salazar, EMI Consulting
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Critical Questions for CalTF Input
Are the assumptions and proposed methods for estimating the UESs reasonable?
Does the CalTF approve the proposed values for Basic Tier UESs?
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Definitions
Unit energy consumption (UEC) is the average estimated annual electricity usage (kWh) per unit for a specific product or device.
Unit energy savings (UES) is the average estimated annual electricity savings (kWh) per unit for a specific product or device.
Coincidence Factor (CF) is the fraction of rated load that is actually connected during peak demand periods.
Unit Demand Reduction (UDR) is the average estimated demand reduction (kW) per unit for a specific product or device.
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Product ClassificationsProduct RPP Product Classes
ENERGY STAR Air Cleaners
< 100 CADR
100 - 150 CADR
> 150 CADR
ENERGY STAR Freezers
Upright with manual defrost, < 13 cu. ft.
Upright with manual defrost, 13 – 16 cu. ft.
Upright with manual defrost, > 16 cu. ft.
Upright with automatic defrost, < 13 cu. ft.
Upright with automatic defrost, 13 – 16 cu. ft.
Upright with automatic defrost, > 16 cu. ft.
Chest with manual defrost, < 13 cu. ft.
Chest with manual defrost, 13 – 16 cu. ft.
Chest with manual defrost, > 16 cu. ft.
Chest with automatic defrost, < 13 cu. ft.
Chest with automatic defrost, 13 – 16 cu. ft.
Chest with automatic defrost, > 16 cu. ft.
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Product Classifications (cont.)Product RPP Product Classes
ENERGY STAR + 50% Soundbars
ENERGY STAR Electric Clothes Dryers
Ventless, Standard, Any Voltage
Ventless, Compact, 120 V
Ventless, Compact, 240 V
Vented, Standard, Any Voltage
Vented, Compact, 120 V
Vented, Compact, 240 V
ENERGY STAR Gas Clothes Dryers
ENERGY STAR Room ACs
With louvered sides, < 6000 Btu/h
With louvered sides, 6000 - 7999 Btu/h
With louvered sides, 8000 - 13999 Btu/h
With louvered sides, 14000 - 19999 Btu/h
With louvered sides, 20000 - 27999 Btu/h
With louvered sides, ≥ 28000 Btu/h
Without louvered sides, < 6000 Btu/h
Without louvered sides, 6000 – 7999 Btu/h
Without louvered sides, 8000 – 10999 Btu/h
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Product Classifications (cont.)
Product RPP Product Classes
ENERGY STAR Room ACs
Without louvered sides, 11000 – 13999 Btu/h
Without louvered sides, 14000 – 19999 Btu/h
Without louvered sides, ≥ 20000 Btu/h
With heat pump, with louvered sides < 20000 Btu/h
With heat pump, with louvered sides ≥ 20000 Btu/h
With heat pump, without louvered sides < 14000 Btu/h
With heat pump, without louvered sides ≥ 14000 Btu/h
Casement-only
Casement-slider
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Room Air Conditioner
sSoundbars Freezers Room Air
Cleaners
Electric Clothes Dryers
Gas Clothes Dryers
UES Approach
Non-DEER Measure
Level
Non-DEER Measure
LevelDEER
Non-DEER Measure
Level
Non-DEER Measure
Level
Non-DEER Measure
Level
Data Needs
Capacity, configuration, CEER, HOU
Power usage by mode, HOU by mode
NA
Capacity, efficiency,
HOU by mode, power
usage by mode
Load size, configuration, number of cycles per
year, combined
energy factor
Load size, configuration, number of cycles per
year, combined
energy factor
Data Sources
ENERGY STAR
criteria, federal
minimum standards,
retailer sales data
Secondary research DEER
ENERGY STAR
savings calculator,
AHAM’s 2004
Analysis of Energy
Efficiency of Room Air Cleaners,
retailer sales data
DOE Notice of Proposed Rulemaking,
DOE Technical Support
Document, ENERGY
STAR criteria, federal
minimum standards
DOE Notice of Proposed Rulemaking,
DOE Technical Support
Document, ENERGY
STAR criteria, federal
minimum standards
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Freezers: DEER Approach Product Type Size kWh/
yeartherms/
year kW/year
Upright freezer withmanual defrost
< 13 cu. ft. 22.1 -0.650 0.00398
13 – 16 cu. ft. 23.8 -0.699 0.00428
> 16 cu. ft. 25.5 -0.750 0.00459
Upright freezer withautomatic defrost
< 13 cu. ft. 28.0 -0.824 0.0050513 – 16 cu.
ft. 30.6 -0.900 0.00552
> 16 cu. ft. 33.2 -0.977 0.00598
Chest freezer with manual defrost
< 13 cu. ft. 16.3 -0.480 0.0029413 – 16 cu.
ft. 18.6 -0.546 0.00334
> 16 cu. ft. 20.7 -0.610 0.00373
Chest freezer with automatic defrost
< 13 cu. ft. 22.6 -0.666 0.0040813 – 16 cu.
ft. 25.8 -0.758 0.00464
> 16 cu. ft. 28.8 -0.847 0.00519
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Clothes Dryers: Non-DEER Measure Level Approach to Calculating UESs
CEFbase-case
Federal minimum standard
CEFmeasure-case
ENERGY STAR spec
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Clothes Dryers: Non-DEER Measure Level Approach to Calculating UDRs
SCE multifamily laundry facility metering study
2011 DOE Technical Support Document for
Residential Clothes Dryers
2014 DOE Technical Support Document for Commercial Clothes
Washers
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Clothes Dryers: UESs & UDRs
Product Type Configuration kWh/year
therms/year kW/year
Ventless ElectricDryers
StandardAny Voltage 165.6 -3.9 0.09
Compact120 V 59.3 -1.4 0.04
Compact240 V 83.5 -2.0 0.05
Vented ElectricDryers
StandardAny Voltage 162.3 0.0 0.07
Compact120 V 58.1 0.0 0.03
Compact240 V 64.7 0.0 0.03
Gas Dryers NA 5.9 NA
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Room Air Cleaners: Non-DEER Measure Level Approach to Calculating UESs
PI,Base-Case = 1.0 W
PI,Measure-Case = 0.6 W
ENERGY STAR savings calculator
TA = 8 hr/day 365 days/yr
TI = 16 hr/day 365 days/yr
2004 AHAM analysis
Sales weighted average capacity for each category determined using NEEA retailer sales data
EffBase-Case= 1 CADR/W
ENERGY STAR savings calculator
EffMeasure-Case= 2 CADR/W
ENERGY STAR spec
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Room Air Cleaners: Non-DEER Measure Level Approach to Calculating UDRs
We assume no variation in the time of day people leave their air cleaners on. At 8 hours of operation a day, this results in a coincident demand factor of
0.33 (8/24).
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Room Air Cleaners: UESs & UDRs
Product Type Size kWh/year
therms/year kW/year
Room Air Cleaners
< 100 CADR 107.1 -2.5 0.02
100 – 150 CADR 199.3 -4.7 0.03
> 150 CADR 360.7 -8.5 0.05
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Soundbars: Tier Definition Due to high market penetration of ENERGY STAR soundbars, the
basic tier for soundbars is ENERGY STAR + 50% But what does + 50% mean?
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Soundbars: Tier Definition Due to high market penetration of ENERGY STAR soundbars, the
basic tier for soundbars is ENERGY STAR + 50% But what does + 50% mean? Looking at the ENERGY STAR spec:
• Products must have automatic power down (APD) functionality• APD must be enabled by default
• Psleep ≤ 1 W + sum(Pwake,i)
• Products with optimal disc players must have Pactive ≤ Pon + sum(Padd,i)
• Pidle ≤ 5 W + sum(Pidle allowance,i)
• ηamplifier ≥ 0.44 for 20 ≤ Pin < 100
• ηamplifier ≥ 0.55 for Pin ≥ 100
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Soundbars: Tier Definition Due to high market penetration of ENERGY STAR soundbars, the
basic tier for soundbars is ENERGY STAR + 50% But what does + 50% mean? Looking at the ENERGY STAR spec:
• Products must have automatic power down (APD) functionality• APD must be enabled by default
• Psleep ≤ 1 W + sum(Pwake,i)
• Products with optimal disc players must have Pactive ≤ Pon + sum(Padd,i)
• Pidle ≤ 5 W + sum(Pidle allowance,i)
• ηamplifier ≥ 0.44 for 20 ≤ Pin < 100
• ηamplifier ≥ 0.55 for Pin ≥ 100
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Soundbars: Tier Definition Due to high market penetration of ENERGY STAR soundbars, the
basic tier for soundbars is ENERGY STAR + 50% But what does + 50% mean? Looking at the ENERGY STAR spec:
• Products must have automatic power down (APD) functionality• APD must be enabled by default
• Psleep ≤ 1 W + sum(Pwake,i)
• Products with optimal disc players must have Pactive ≤ Pon + sum(Padd,i)
• Pidle ≤ 5 W + sum(Pidle allowance,i)
• ηamplifier ≥ 0.44 for 20 ≤ Pin < 100
• ηamplifier ≥ 0.55 for Pin ≥ 100
+ 50% means:• 50% lower Pidle and Psleep than ENERGY STAR base requirement AND
• 50% higher ηamplifier than ENERGY STAR base requirement
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Soundbars: Non-DEER Measure Level Approach to Calculating UESs
TA = 1580 hr/yr
TI= 730 hr/yr
Ts= 6450 hr/yr
2,000-person survey completed in 2007
Ps, Base-Case= 4 W
Fraunhofer 2014
Ps, Measure-Case= 1.4 W
EPA analysis
PA, Base-Case = 30 W
PI, Base-Case= 12 W
Fraunhofer 2014
PA, Measure-Case = 9 W
PI, Measure-Case= 8.4 W
EPA analysis
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Soundbars: Non-DEER Measure Level Approach to Calculating UDRs
We use the coincident demand factor for televisions
from the Energy Division’s March 2013 Workpaper
Disposition on Energy Efficient Televisions as a proxy for
home audio products.
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Soundbars: UESs & UDRs
Product Type kWh/year
therms/year kW/year
Soundbars 53.6 -1.3 0.0009
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FLHC = 356.7 hr/yr
DEER
ηBase-Case
Title 20
ηMeasure-Case
ENERGY STAR spec
Average capacity for each category determined using
webcrawler data from retailer websites
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Room ACs: DEER(ish) Approach to Calculating UDRs
DEER lists IOU-specific, split AC kW/kWh values for residential buildings by SEER category (SEER 15, 17, 18, 19, 20 and 21).
For this workpaper we use the average across all the SEER categories to estimate the kW/kWh value for room ACs.
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Room ACs: UESs & UDRs Product Type Size kWh/
yeartherms/
year kW/year
Room ACWith LouveredSides
< 6000 Btu/h 7.0 -3.9 0.01
6000 – 7999 Btu/h 8.8 -4.9 0.018000 – 13999 Btu/h 14.9 -8.3 0.02
14000 – 19999 Btu/h 23.5 -13.1 0.03
20000 – 27999 Btu/h 36.5 -20.4 0.05
≥ 28000 Btu/h 47.8 -26.7 0.06
Room AC Without Louvered Sides
< 6000 Btu/h 7.7 -4.3 0.01
6000 – 7999 Btu/h 9.7 -5.4 0.01
8000 – 10999 Btu/h 15.7 -8.7 0.0211000 – 13999
Btu/h 21.6 -12.1 0.03
14000 – 19999 Btu/h 23.9 -13.3 0.03
≥ 20000 Btu/h 37.0 -20.7 0.05
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Room ACs: UESs & UDRs (cont.) Product Type Size kWh/
yeartherms/
year kW/year
Room AC Heat Pump With Louvered Sides
< 20000 Btu/h 17.4 -9.7 0.02
≥ 20000 Btu/h 38.3 -21.4 0.05
Room AC Heat Pump Without Louvered Sides
< 14000 Btu/h 14.6 -8.1 0.02
≥ 14000 Btu/h 33.1 -18.5 0.04
Casement-Only Room AC 16.1 -9.0 0.02
Casement-Slider Room AC 12.8 -7.2 0.02
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Advanced Tiers Are Coming…
What we’re thinking: Air Cleaners: ENERGY STAR + 30% Soundbars: ENERGY STAR + 75% Freezers: ENERGY STAR + 5%
What you can expect: Presentation of technical definitions of ENERGY STAR
+ xx% for each product in October Same methodology will be used to determine UESs for
Advanced Tiers
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42Meeting Objectives/Critical Questions for CalTF Input
Are the assumptions and proposed methods for estimating UESs reasonable?
Does the CalTF approve the proposed values for UESs?
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Appendix: Data SourcesProduct Parameter Data Source Notes
Clothes Dryers
Cycles/yr
DOE Technical Support Document
Also considered NEEA field study of 46 homes. NEEA study and DOE TSD show comparable results. DOE TSD chosen for consistency with test procedure and ENERGY STAR calculation methodology.
Pounds/cycle
CEFBase-Case Federal Standard
CEFMeasure-Case ENERGY STAR Spec
Dryer cycle run timeavg PG&E/NEEA Lab Tests
CF SCE Multifamily Laundry Study
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Appendix: Data SourcesProduct Parameter Data Source Notes
Room Air Cleaners
Idle mode power drawENERGY STAR Savings Calculator
No other reliable sources foundEfficiencyBase-Case
EfficiencyMeasure-Case ENERGY STAR Spec
HOU by mode2004 AHAM Report to CEC: Analysis of Energy Efficiency of Room Air Cleaners
Other sources considered: 2004 PG&E report (data from AHAM 2003), ENERGY STAR Savings Calculator (source of data not documented) & 2010 ECW report - (small sample, size of units not documented).
Sales-weighted average capacity per category
NEEA retailer sales data
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Appendix: Data SourcesProduct Parameter Data Source Notes
Soundbars
Power draw by modeBase-Case
Fraunhofer 2014 report for the Consumer Electronics Association (CEA)
Most comprehensive study; built on and incorporated data from Roth and McKenney 2007 and Bensch et al 2010 (ECW)
Power draw by modeMeasure-Case
EPA analysis of ENERGY STAR Version 3.0 and Version 2.1 certified models
No other reliable sources found
HOU by modeRoth and McKenney 2007 report for the CEA
No other sources with significant sample size (> 1)
CF
Energy Division’s March 2013 Workpaper Disposition on Energy Efficient TVs