Refrigeration Energy Solutions February 24, 2010

2 Program Summary  Approximately $7M in incentives per year  Cap for Large Customers: $300,000 per year  Prescriptive Incentives (New Const. & Retrofit)  Custom Incentives (New Const. & Retrofit)  Study Incentives (50% up to $10K per study per year up to $20K for Retro-commissioning)  The APS Solutions for Business Program is funded by APS customers and is approved by the Arizona Corporation Commission.

3 Program Summary

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5 Incentives  Lighting - $1.75 to $200 per unit  HVAC - $7 to $100+ per Ton  Prog T-Stat - $50/unit  HVAC Testing & Repair - $120 to $400+ per unit  Windows - $0.50 per square foot  Motors - $10 to $225 per motor  VFDs - $50 per horsepower  Refrigeration - $5 to $200 per unit

6 Prescriptive Refrigeration Incentives

7 Strip Curtains  Up to 45% Savings  1 Year Payback  $5 per ft. incentive  Energy Savings  Low Cost  Incentive not available if replacing existing curtains

8 Night Covers  Up to 35% Savings  2 to 3 year payback  $10 per linear foot incentive  Energy Savings  Maintenance Savings

9 Anti-Sweat Heater Controls  Up to 30% Savings  1 to 3 year payback  $200 per Sensor Incentive  Energy Savings

10 High Efficiency Ice Makers  Up to 35% Savings  1 to 9 Year Payback  $45 per Machine Incentive  Energy Savings

11 High Efficiency Refrigerators or Freezers  Up to 25% Savings  1 to 8 Year Payback  $75 per Unit Incentive  Energy Savings  Must be Energy Star rated

12 High Efficiency Evaporator Fan Motors  Up to 10% Savings  2 to 5 Year Payback  $10 per Motor Incentive  Energy Savings  Low Cost

13 Vending Machine Controls  Up to 45% Savings  1 to 3 Year Payback  $25 - $100 per Machine Incentive  Energy Savings  Low Cost

14 Prescriptive Application

15 Prescriptive Application

16 Prescriptive Application

17 Custom Measures  One-time $0.11 per annual kWh savings (50% measure cost cap)  May combine Prescriptive & Custom (some cases)  Customer/contractor to provide initial saving calculations and Documentation Calculation method Operation and efficiency assumptions Manufacturer data (cut sheets) Monitoring data if available Modeling data, etc.

18 Custom Measures (Examples)  Evaporator fan controllers for walk-in coolers and freezers.  LED refrigerated case lighting retrofit.

19 Energy Studies  Must follow template and application requirements  For Existing Buildings – Retro-Commissioning and Feasibility Studies  For New Construction – Commissioning and Design Assistance  Incentives – 50% of Study Cost – Not to exceed $10,000 per study – Not to exceed $20,000 per study: retro-commissioning

20 Technical Assistance Application

21 Report Template

22 Energy Information Systems  APS and Automated Energy’s EIS allows you to harness the value of energy consumption data that currently exists within the four walls of your enterprise

23 EIS is a powerful tool that presents a customer’s commodity consumption information in a useful, customized, and relevant format

24 Program Costs  Meter Setup Fee - $125 per meter  Daily Service – telephone based - $25 per meter per month  Hourly Service – internet based - $50 per meter per month  Meter Upgrade and Equipment Costs - varies per site and per mode of communications  APS Incentive – 75% of meter upgrade and setup fees up to $12,000 per customer

25 APS Solutions for Business Website APS.com Home Page

26 Contact Information Toll-free hotline Fax number Website aps.comaps.com (click on Business Rebates)