Floating Head Pressure Controls for Single Compressor Systems

At a Glance

Status

active

Fuel type

electric

Sector

commercial

Applications

grocery

Sunset date

Jul 30, 2024

This measure installs Floating Head Pressure Controls on single compressor systems which allows head pressure of system to follow ambient dry bulb temperature instead of preset on/off operation based on cut-in/cut-out pressures. Savings then occur from load reduction of the refrigeration system. It is applicable to the grocery sector only. The remaining potential that qualifies this as a small saver is based on this assumption. Programs appear to be phasing out of offering this specific measure, and the RTF will consider deactivation in the next round of updates when the measure sunsets.

The July 2019 measure update used EnergyPlus to model savings. Those models are available upon request.

The RTF approved allocating resources to Floating Head Pressure Controls for Multiplex Systems at the December 2019 meeting.

Workbook

Latest Version

Commercial Grocery Floating Head Pressure Controls Single Compressor v3.0

Commercial Grocery Floating Head Pressure Controls Single Compressor v3.0

Updated with 2021 Plan cost effectiveness methodology

Date

Apr 18, 2022

Version number

3.0

Past Versions

version	date	document
2.1	Sep 20, 2019	Commercial Grocery Floating Head Pressure Controls v2.1 Measure as approved by the RTF at the July 2019 RTF meeting. Workbook updated post-QC review. No significant changes to savings or costs.
2.0	Aug 02, 2019	Commercial Grocery Floating Head Pressure Controls Single Compressor v2.0 Workbook for savings approved at July 2019 RTF meeting. Workbook currently undergoing QA/QC review.
1.6	Dec 05, 2016	Grocery FHPC Single Compressor v1.6 QC review complete.
1.5	Jun 29, 2016	ComGroceryFHPCSingleCompressor_v1_5.xlsm Updated to 7th Plan format and assumptions. Currently undergoing QC.
1.4	Jan 04, 2016	ComGroceryFHPCSingleCompressor_v1_4.xlsm Delivery verification checklist added
1.3	Aug 28, 2014	ComGroceryFHPCSingleCompressor_v1_3.xlsm QC review complete.
1.2	Jun 24, 2014	ComGroceryFHPCSingleCompressor_v1_2.xlsm Currently undergoing QC
1.1	Dec 11, 2012	ComGroceryFHPCSingleCompressor_v1_1.xls Summary sheet added.
1.0	Dec 17, 2010	GroceryFHPCSingleCompressor_v1.xls Original savings workbook.

Decisions

Expand All Decisions

Latest decision

Decision details

Decided

July 23, 2019

Approved Measure Changes

Decision Details

Approve the Floating Head Pressure Controls UES as presented

Update load shape to floating head pressure control
Add cost for variable speed fan
Keep the Category at Small Saver
Keep the Status at Active
Set the sunset date to July 30, 2024

Decided

June 18, 2019

Extend Sunset Dates

Decision Details

Extend the sunset date for the Floating Head Pressure Controls UES to September 2019
Extend the sunset date for the following measures to November 2019:

ASPH upgrades SF
CC&S SF
ASHP Upgrades and Conversions MH
CC&S MH
MH Weatherization (Heat Pumps)
DHP in Zonal Electric Resistance Homes SF
DHP in Zonal Electric Resistance Homes MH
SF Weatherization

Decided

November 10, 2015

Approve measure update

Decision Details

Adopt the delivery verification guidance as presented for the following measures:

Com Grocery – Display Case LEDs (Open Cases)
Com Grocery – Display Case Motion Sensors
Com Grocery – Floating Head Pressure Controls for Single Compressor Systems
Com Grocery – Strip Curtains
Com Grocery – Walk-in Evaporator Fan EC Motor Controllers
Com Grocery – Compressor Head Fan Motor Retrofit to EC Motor
Com Smart Plug Power Strips• Com Traffic Signals – LED Traffic Signals
Res Heating/Cooling – Electronic Thermostats
Res Heating/Cooling – Ground Source Heat Pump Upgrades
Res Lighting – High Performance T8 Lamps (4 foot and 8 foot).

Decided

June 17, 2014

Approve measure update

Decision Details

Approve the ‘Floating Head Pressure Control on Single Compressors’ measure as a “Small Saver” UES; Set the measure status to ‘Active;’ and Set the sunset date to June, 2019; Restrict measure to grocery sector only; Direct staff to look at potential for FHPC outside of the grocery sector and bring back to RTF at next meeting

Decided

March 18, 2014

Sunset date extension

Decision Details

Extend the sunset dates for Autoclosers, Display Case LEDs (Open Cases), Door Gasket Replacement, Floating Head Pressure Controls for Single Compressor Systems, and Strip Curtains to June 30, 2014.

Decided

November 19, 2013

Direction for further analysis

Decision Details

Accept staff’s proposed plan to bring the Out-of-Compliance UES measure into compliance and to extend the sunset date to March, 2014.

Decided

December 11, 2012

Approve measure update

Decision Details

Adopt the SBW recommendations for the Commercial Grocery Floating Head Pressure for Single Compressor Systems UES measure and change the status to Out of Compliance with a sunset date of December 31, 2013.

Decided

November 02, 2010

Approve measure update with direction for further analysis

Decision Details

Measure accepted, analysis will be run to gauge the effect of modeling different refrigerants, with the potential of splitting the savings between R404 and R22s, and that Jerome, Hadley, and Grist will review the results

Small/rural Checklist

Latest Version

July 2014 Grocery Floating Head Pressure Controls for Single Compressor Small/Rural Utilities Checklist

Date

Jul 7, 2014