ENERGY STAR

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ENERGY STAR
ENERGY STAR Refrigerators and Freezers Richard
H. Karney, US DOE July 18, 2001
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• Review of
• Analysis Methodology

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Expansion of Coverage and Eligibility

• Why expand?
• Industry/Utility/Consumer interest
• New Models Available
• Provide motivation to increase product efficiency
• Provide more efficient option for common
  household purchase

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Current Refrigeration Spec

• Standard size refrigerators only
• gt12.5 ft3 for top-mount freezer
• gt18 ft3 for side-by-side, bottom
• Initial specification intended to include most
  common sizes

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Proposed Addition to Specification Coverage

• Mid-sized refrigerators
• 6.5 to 18.5 ft3, all configurations
• Freezers (manual auto)
• All residential sizes
• Compact refrigerators/freezers
• lt 6.5 ft3
• Manual partial defrost
• All sizes

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Proposed ENERGY STAR Levels for Expansion

• 10 below NAECA standard
• No change
• Maintain consistency with current specification
• Consistency aids consumer understanding
• Exception
• Compact refrigerators/freezers
• 20 below NAECA proposed

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Mid-size Refrigerators Market Overview

• Estimated annual sales 1.9 million
• Top mount freezer most common

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NAECA and ENERGY STAR Mid-size
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Proposed ENERGY STAR LevelMid-sized
Refrigerators

• 10 below NAECA standard
• Consistent with current speciation

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Compacts Market Overview

• Annual Sales 2.4 million
• Mostly Manual Defrost
• Sales Volume Doubled in Last Five Years

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NAECA and ENERGY STAR Compacts
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Proposed ENERGY STAR Level Compacts

• 20 below NAECA standard
• Why not 10?
• 20 created better differentiation
• Greater energy savings

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Freezers Market Overview

• 2 million units/year sales
• 36 million unit stock
• 1 in 3 households
• Two manufacturers have 99 of market

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NAECA and ENERGY STAR Upright Freezers
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NAECA and ENERGY STAR Chest Freezers
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Proposed ENERGY STARLevels Freezers

• 10 below current NAECA standard
• Currently, freezers at 10 below NAECA do not
  exist
• Manufacturers stated they will produce more
  efficient product upon introduction of ENERGY
  STAR expansion

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Estimated Energy Savings

• Assume 10 market penetration in first year
• Freezers 13.6 GWh
• Compacts 8.2 GWh
• Mid-sized 8.7 GWh

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Estimated Energy Savings Formula

• Model technique
• Weighted average size (ft3) times average unit
  energy consumption improvement times annual
  shipments of Energy Star Units
• Give aggregate annual consumption

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Options to Improve Performance

• Improve insulation
• HCFC blown Ins. ends in 2004
• New materials being considered
• Improve compressor performance
• ECMs for condenser/evaporator
• Onboard demand management

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Conclusion

• These are proposed performance levels
• Please make comments today
• Reminder Final comments due August 2