Regional Technical Forum May 27, 2008 Presented by Ryan Fedie and Jamie Anthony Portland Energy Conservation, Inc.

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  Application: –PSC motors are use in cases where the motor is exposed to condensation.  Measure: –Remove shaded pole evaporator fan motors and install permanent split capacitor motors in display cases or walk-in cases.

3 Evaporator Motors - summary Note: ECM savings of 313 kWh and 604 kWh respectively.

MT Walk-in Reach-in Case to MT Door  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

5  Base Case: Medium temperature open walk-in reach-in case  Proposed Case: Medium temperature reach-in door MT Walk-in Reach-in Case to MT Door

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

8 Case Lighting - T8/T12 to LED Courtesy of a GE presentation 6/20/06

9 Case Lighting - T8/T12 to LED