Measure Life 15 years Sources: Business Program-Program Year 2, June, 2009 through May, 2010. “ActOnEnergy; Technical Reference Manual, No. 2009-01.” Published 12/15/2009. Commercial Technical Reference User Manual No. 2007-1.” Published “Efficiency Maine; 3/5/07. Regional Technical Forum (RTF) as part of the Northwest Power & Conservation Council, Deemed Measures List. Grocery Display Case ECM, FY2010, V2. Accessed from RTF website http://www.nwcouncil.org/rtf/measures/Default.asp on July 30, 2010. High-Efficiency Evaporator Fan Motors for Walk-in Refrigerated Cases This protocol covers energy and demand savings associated with retrofit of existing shaded-pole (SP) or permanent-split capacitor (PSC) evaporator fan motors in walk-in refrigerated display cases with an electronically commutated motor (ECM). A default savings option is offered if case temperature and/or motor size are not known. However, these parameters should be collected by EDCs for greatest accuracy. There are two sources of energy and demand savings through this measure. There are the direct savings associated with replacement of an inefficient motor with a more efficient one, and there are the indirect savings of a reduced cooling load on the refrigeration unit due to less heat gain from the more efficient evaporator fan motor in the air-stream. Algorithms Cooler kWpeak per unit = (Wbase Wee) / 1,000 * LF * DCEvapCool * (1 + 1 / (DG * – COPcooler)) kWhper unit = kWpeak per unit * HR kWpeak = N *kWpeak per unit kWh = N * kWhper unit Freezer kWpeak per unit = (Wbase Wee) / 1,000 * LF * DCEvapFreeze * (1 + 1 / (DG * – COPfreezer)) kWhper unit = kWpeak per unit * HR
Measure Life 15 years Sources: “ActOnEnergy; Business Program-Program Year 2, June, 2009 through May, 2010. Technical Reference Manual, No. 2009-01.” Published 12/15/2009. “Efficiency Maine; Commercial Technical Reference User Manual No. 2007-1.” Published 3/5/07. Regional Technical Forum (RTF) as part of the Northwest Power & Conservation Council, Deemed Measures List. Grocery Display Case ECM, FY2010, V2. Accessed from RTF website http://www.nwcouncil.org/rtf/measures/Default.asp on July 30, 2010. High-Efficiency Evaporator Fan Motors for Walk-in Refrigerated Cases This protocol covers energy and demand savings associated with retrofit of existing shaded-pole (SP) or permanent-split capacitor (PSC) evaporator fan motors in walk-in refrigerated display cases with an electronically commutated motor (ECM). A default savings option is offered if case temperature and/or motor size are not known. However, these parameters should be collected by EDCs for greatest accuracy. There are two sources of energy and demand savings through this measure. There are the direct savings associated with replacement of an inefficient motor with a more efficient one, and there are the indirect savings of a reduced cooling load on the refrigeration unit due to less heat gain from the more efficient evaporator fan motor in the air-stream. Algorithms Cooler kWpeak per unit = (Wbase – Wee) / 1,000 * LF * DCEvapCool * (1 + 1 / (DG * COPcooler)) kWhper unit = kWpeak per unit * HR kWpeak = N *kWpeak per unit kWh = N * kWhper unit Freezer kWpeak per unit = (Wbase – Wee) / 1,000 * LF * DCEvapFreeze * (1 + 1 / (DG * COPfreezer)) kWhper unit = kWpeak per unit * HR
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