Regional Technical Forum

July 1st, 2008Presented by Ryan Fedie and Jamie Anthony

Portland Energy Conservation, Inc.

Update Summary

Shaded Pole to Permanent Split Capacitor motor:– BTU conversion included in fan heat equation– Added slide showing percent of motors which are PSC

Linear fluorescent to LED case lighting:– Measures created for both 18hr and 24 hr lighting operation

Add doors to medium temperature walk-in reach-in:– Incorporated HVAC interactions for reduced case infiltration 

• heating savings, cooling penalty– Updated measure cost– Added BPA thermal imaging pictures 

Evaporator Motors – Shaded Pole to PSC

Addition to existing measure:– Existing program measure for

Shaded Pole to ECM, adding capability to go from Shaded pole to PSC

Measure:– Remove shaded pole evaporator fan motors and install permanent split capacitor

motors in display cases or walk-in cases.

Evaporator Motors – Shaded Pole to PSC

Application:– PSC motors are used

in high moisture environments where the motor is exposed to condensation.

– Typical applications: low temperature walk-ins, display cases with misters

5

Evaporator Motors - summary

EnergySmart Grocer Measuers

Unitized or

Modeled Savings

Unit of measure

Demand Savings

(kW)

Energy Savings (kWh)

Measure life

Shape Measure Cost

Measure Cost Basis

Measure Cost Source

Lost Opportunity Measure

RTF B/C ratio

Evap Motors: Shaded Pole to PSC in display cases

Unitized motor 0.03 326 15 Flat $ 76.00 full Based on industry experience

N 2.9

Evap Motors: Shaded Pole to PSC in Walk-in cases

Unitized motor 0.05 509 15 Flat $ 76.00 full

Based on industry experience

N 4.5

Note: PSC savings are 88% of ECM savings for display cases, and 71% for Walk-ins

Evaporator Motors – PSC vs ECM

Question: What percent of rebates will be PSC? California Program 2007 results:

– 8,553 ECM motors rebated– 278 PSC motors rebated– 3% of all rebated fans were PSC

Add Doors to Med. Temp. Walk-in Reach-in

Measure:– Retrofit existing medium temperature open walk-in reach-in case

with a medium temperature reach-in door.

Base case:– Medium temperature open walk-in reach-in case

• T8 lighting• Shaded Pole Fans

Proposed case:– Medium temperature reach-in door

• T8 lighting• Frame heating• No door anti-sweat heaters

– Existing case evaporator coils, fans, and lighting will be removed

8

Base Case: Medium temperature open walk-in reach-in case

Proposed Case: Medium temperature reach-in door

Add Doors to Med. Temp. Walk-in Reach-in

Thermal Imaging of Open Cases

Add Doors to Med. Temp. Walk-in Reach-inHVAC interactions included

EnergySmart Grocer Measuers

Unitized or

Modeled

Savings

Unit of measure

Demand Savings

(kW)

Energy Savings (kWh)

Gas Savings (Therms)

Measure life

Shape Measure Cost

($-2008)

Measure Cost Basis

Measure Cost Source

Lost Opportunity Measure

RTF B/C Ratio

Add doors to Walk-in Reach-in

UnitizedLinear Feet of Case

0.03 1017 45 12GrocRef

Load$815.38 full

Dave Rogers of Equipment Whole Salers - based ond average total project cost across 20 stores

N 1.0

Case Lighting - T8/T12 to LED

Measure– Remove linear fluorescent display case lighting and install

LED lighting or install LED lighting in new display cases.

Base case – T8 or T12 lamps and electronic ballasts

Proposed case– LED lighting system– Power source should be located outside of the

refrigerated space

Existing program measure only applies to low temperature retrofits. This allows the conversion of medium temperature and new cases

12

Case Lighting - T8/T12 to LED

Courtesy of a GE presentation 6/20/06

13

Case Lighting - T8/T12 to LED (18 hours)

EnergySmart Grocer Measuers

Unitized or

Modeled Savings

Unit of measure

Demand Savings

(kW)

Energy Savings (kWh)

Measure life

Shape Measure Cost

($2000)

Measure Cost Basis

Measure Cost Source Lost Opportunity Measure

RTF B/C Ratio

Annual O&M Cost ($2000)

Case Lighting - Low Temp - T8 to LED, retrofit

Unitized

Linear Feet of Case

0.02 148 8 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 0.9 ($3.07)

Case Lighting - Low Temp - T12 to LED,retrofit

Unitized

Linear Feet of Case

0.04 265 8 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 1.4 ($3.07)

Case Lighting - Med Temp - T8 to LED, retrofit

Unitized

Linear Feet of Case

0.02 117 8 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 0.8 ($3.07)

Case Lighting - Med Temp - T12 to LED, retrofit

Unitized

Linear Feet of Case

0.03 208 8 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 1.1 ($3.07)

Case Lighting - Low Temp - T8 to LED, new

Unitized

Linear Feet of Case

0.02 148 8 Flat 82.76$ incremental Ryan Kolb, Hussman Corp Y 0.9 ($3.07)

Case Lighting - Med Temp - T8 to LED, new

UnitizedLinear Feet of Case

0.02 117 8 Flat 82.76$ incremental Ryan Kolb, Hussman Corp Y 0.8 ($3.07)

Input for B/C calculator for New Measure cost is $99/ln ft in 2008 Dollars

14

Case Lighting - T8/T12 to LED (24 hours)

EnergySmart Grocer Measuers

Unitized or

Modeled Savings

Unit of measure

Demand Savings

(kW)

Energy Savings (kWh)

Measure life

Shape Measure Cost

($2000)

Measure Cost Basis

Measure Cost Source Lost Opportunity Measure

RTF B/C Ratio

Annual O&M Cost ($2000)

Case Lighting - Low Temp - T8 to LED, retrofit

Unitized

Linear Feet of Case

0.02 198 6 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 0.8 ($3.07)

Case Lighting - Low Temp - T12 to LED,retrofit

Unitized

Linear Feet of Case

0.04 353 6 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 1.3 ($3.07)

Case Lighting - Med Temp - T8 to LED, retrofit

Unitized

Linear Feet of Case

0.02 155 6 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 0.7 ($3.07)

Case Lighting - Med Temp - T12 to LED, retrofit

Unitized

Linear Feet of Case

0.03 278 6 Flat 79.32$ fullPG&E Study (material cost and labor hrs), NW labor rates

N 1.1 ($3.07)

Case Lighting - Low Temp - T8 to LED, new

Unitized

Linear Feet of Case

0.02 198 6 Flat 82.76$ incremental Ryan Kolb, Hussman Corp Y 0.9 ($3.07)

Case Lighting - Med Temp - T8 to LED, new

UnitizedLinear Feet of Case

0.02 155 6 Flat 82.76$ incremental Ryan Kolb, Hussman Corp Y 0.7 ($3.07)

Savings increased by 33%, compared to 18 hour operation, Life reduction of 25%Input for B/C calculator for New Measure cost is $99/ln ft in 2008 Dollars