1. Deemed Calculation for Variable Speed Drives on Milking Machine Vacuum Pumps May 7, 2002

2. Proposal Use 50% of calculated annual vacuum pump energy use in lieu of requiring pre- and post metering Permit user to override default values for pre- and post-VSD installation with metered data

3. Basis of “50%” – Cornell University Research CAEP VSD Installation Data for Dairy Vacuum Pumps DairyMilkings /day Existing Motor HP Metered EUI Baseline (kWh/yr./cow/ milking) Metered EUI Post - (kWh/yr./cow/ milking) Annual Energy Savings - kWh/yr. % Energy Savings A37.5.432013,10053% B35562210,70061% C315562164,36063% D320 (2)6828111,00059% E29.5712223,50069% F310731373,80082% G310861797,30080% H37.5892439,00073% Savings Weighted Average70%

4. Basis of “50%” – Bonneville Field Research BPA VSD Installation Data for Dairy Vacuum Pumps DairyVacuum Pump Run Time (Hrs./Day) Existing Motor HP Metered EUI Baseline (kWh/yr) Metered EUI Post - (kWh/yr) Annual Energy Savings (kWh/yr) % Energy Savings A12(2) 2070,70015,30055,40078% B10 22,3008,20014,10063% C147.529,10014,90014,20049% D22-2320122,70030,00092,70076% E122042,00023,90018,10043% F20-222091,00036,60054,40060% Savings Weighted Average68%

5. Basis of “50%” – Deem Calculated vs. Measured Savings Calculated Vs. Metered Annual Energy Savings for BPA Dairy Vacuum Pump VSD Installations DairyVacuum Pump Run Time (Hrs./Day) Existing Motor HP Calculated Baseline (kWh/yr) 50% Calculated Annual Energy Savings (kWh/yr) Metered Annual Energy Savings (kWh/yr) Difference Energy Savings (Metered/ Calculated) A12(2) 2098,02449,01255,40012% B10 20,42210,21114,10028% C147.521,44310,72114,20024% D22-232091,89845,94992,70050% E122049,01224,50618,100-35% F20-222085,77142,88654,40021% Savings Weighted Average26%