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Retrofit Doors on Existing Display Cases

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Work Products

UES Measures Standard protocols list Demand Response Technologies Supporting Documents Propose a measure or standard protocol Proposed measures and status Whole Building Efforts

Subcommittees

  • Agricultural Irrigation
  • Air Source Heat Pumps
  • Commercial HVAC
  • Compressed Air
  • Connected Thermostats
  • Demand Response
  • Ductless Heat Pumps
  • Duct Sealing
  • Guidelines
  • Heat Pump Water Heaters
  • Implementers Group
  • Market Analysis
  • Natural Gas Subcommittee
  • New Homes Standard Protocol
  • Non-Residential Lighting
  • Operations
  • Pump Systems
  • Research and Evaluation
  • Residential Behavior
  • Residential Lighting
  • RTF Policy Advisory Committee
  • Small and Rural Utilities
  • Statistical Methods
  • Whole Building Subcommittee
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UES Measure

  • Retrofit Doors on Existing Display Cases

Retrofit Doors on Existing Display Cases

At a Glance

Status 
active
Fuel type 
electric
Sector 
commercial
Applications 
grocery
Sunset date 
Oct 31, 2024

This measure is to add doors to open refrigerated case and make adjustments to the rest of the refrigeration system as needed to optimize performance with a significantly reduced thermal load. Specifically adjustments might be upgrading or modifying expansion valves, replacing refrigerant piping, and/or re-configuring compressors in some instances. 

The measure saves energy by reducing infiltration in open-cases. Adding a door to a refrigerated case reduces the refrigeration load by about half and also reduces the heating load of the store. However it also can introduce an anti-sweat heater load. 

Workbook

Latest Version

Retrofit Doors on Grocery Display Cases v2.1

File Retrofit Doors on Grocery Display Cases v2.1
V2.1 corrects an error in v2.0 in which the cost data, originally in 2019$ in the California workpaper, was converted to 2016$
Date 
Jan 20, 2023
Version number 
2.1

Past Versions

version date document
2.0
Apr 21, 2022
File Retrofit Doors on Grocery Display Cases v2.0
Updated with 2021 Plan cost effectiveness methodology
1.1
Dec 15, 2021
File Retrofit Doors on Grocery Display Cases v1.1
Approved at the October 2021 RTF meeting. QC complete, one correction resulted in a significant change to the heating interaction, improving the cost-effectiveness for all measures
1.0
Oct 19, 2021
File Retrofit Doors on Grocery Display Cases v1.0
Approved at the October 2021 RTF meeting. Currently undergoing QC.
Supporting Documents
File Research Strategy for Adding Doors to Refrigerated Case (September 2021)
Oct 19, 2021
Research strategy that seeks to address existing deficiencies in the reliability of the RTFs refrigerated case related energy savings methodology.

Decisions

Expand All Decisions

Latest decision

Decision details

Decided 
October 19, 2021
RTF Meeting: October 19, 2021

Adopt New Measure

Decision Details

Adopt the Retrofit Doors on Display Cases UES for remote condensing systems as presented and:

  • Set the Category as Planning
  • Set the Status as Active
  • Set the Sunset Date at October 31, 2024 
Decided 
November 19, 2019
RTF Meeting: November 19, 2019

Allocate Resources to New Measure Development

Decision Details

Allocate resources to: 

  • Small Commercial DHPs 
  • Generator Engine Block Heaters
  • ENERGY STAR Air Purifiers
  • Non-Residential LED Wallpacks
  • Residential High Efficiency Central AC
  • Advanced Kitchen Ventilation Controls 
  • Retrofit or Upgrade Doors on Existing Display Cases 
  • Air Curtains for Walk-Ins
  • Floating Controls for Multiplex Refrigeration System
  • Display Case Upgrade and Replacement

Do not allocate resource to:

  • Workstation Power Management Devices
  • Anti-Fouling Refrigerant Additives 
  • ENERGY STAR Dehumidifiers

 

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