Program Overview February 25, 2009

2 Program Summary Approximately $14M 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

4

5 Retrofit - Prescriptive Lighting Fluorescent – T12 to Std T8$5.00 per lamp Fluorescent – T12 to Premium T8$8.00 per lamp Permanent delamping of T8 fixture$5.00 per lamp Replace high bay fixture w/ T8/T5 HO$75 - $200 per fixture Induction Lighting$75 - $150 per Fixture Replace exit sign w/ LED$25 per sign Occupancy or daylight controls$0.12 per con. Watt Compact fluorescent lamps (CFL)$1.75 per lamp Hardwired CFLs$15 - $20 per fixture Cold Cathode lamps$3.50 each

6 New Construction Prescriptive Lighting

7 Prescriptive HVAC AC Package & Split Systems$25 to $100+ per ton Outside Air Economizers $15 per ton Packaged Terminal AC $45 to $60+ per ton Water-Cooled Chillers$7 to $90 per ton Air-Cooled Chillers$7 to $70 per ton HVAC Testing & Repair$240 to $915 per unit Programmable Thermostats$50 each

8 Envelope Measure Glazing – New Construction or Retrofit 50 cents per square foot See specs for details

9 Prescriptive Motors

10 New Const. Prescriptive VSDs VSDs required by ASHRAE are not eligible Example: VAV with motors 15 hp or greater Example: HVAC Pump on variable flow system with motor greater than 50 hp

11 New Construction Whole Building Customer Incentive 10 cents to 26 cents per kWh Designer Team Incentive 4 cents to 12 cents per kWh 10% to 30% savings relative to ASHRAE

12 Prescriptive Refrigeration

13 Prescriptive Application

14 Prescriptive Application

15 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.

16 Custom Measures (Examples) Plate & Frame Heat Exchangers Replace T8 lamps with new T8 lamps and new electronic ballasts New Energy Management Controls Building Envelope measures

17 APS Solutions for Business Website - APS Home Page

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