Xcel Energys Energy Efficiency Programs IESNA Rocky Mountain Section September 14, 2010

2 Contact Information Derek Shockley, Trade Relations Manager, David Hueser, Product Manager – Lighting Efficiency, Business Solutions Center Franklin Energy (Small Business Lighting) Xcel Energy Account Managers Rebate info: xcelenergy.com/rebates HE Ballasts: energystar.gov/sslpartners

3 Driver: Colorados Energy Needs In the last decade: Up 7% Up 32% Up 14% Number of Customers Peak Demand Electricity Use per Customer Xcel Energy must meet customers needs Manage supply by obtaining more power Manage demand by reducing customers usage

4 How Xcel Energy Helps Provides incentives to customers to adopt energy-efficient technologies Rebates provide trade partners a tool to promote energy efficiency in the marketplace Xcel Energy brand name and neutral 3 rd party endorsement Results: energy savings and quicker paybacks for customers

5 Xcel Energys Environmental Leadership No. 1 wind power provider No. 5 solar power provider Windsource ® Largest voluntary green-pricing program in USA Industry-leading energy efficiency programs One of largest photovoltaic systems – 8.2 megawatts Solar*Rewards – 4,500 customers, 40 megawatts Voluntary emissions reductions

6 Xcel Energys Efficiency Programs Cash rebates (not bill credits) For existing facilities or new construction For Xcel Energy Colorado business electricity customers and natural gas customers who buy their gas directly from us

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8 Xcel Energy Offers Three Types of Programs Prescriptive programs Non-prescriptive (custom) programs Studies/Audits

9 Xcel Energy Prescriptive Programs Prescriptive programs Predetermined rebate amounts and related savings for various energy-saving technologies No preapproval required Qualifying technologies are listed on the rebate applications Included programs: Lighting – Retrofit and New Construction Small Business Lighting ( 400kW demand) Cooling Motors and variable frequency drives

10 Lighting Efficiency, Small Business Lighting Rebates range from $1 per lamp to $275 per fixture T8 fluorescent rebates, high efficiency ballasts ( T12 - T8 retrofits: require HE ballasts with.85 low ballast factor: $13 - $22 per fixture T8 de-lamping retrofits: $12 - $26 per fixture High-bay T8 (retrofit, new construction): $12 - $210 per fixture Pulse-Start and Ceramic Metal Halide Fixture rebates (retrofit, new construction): $8 - $140 Screw-in and hardwired CFLs: $1 per lamp to $35 per fixture Custom Efficiency lighting opportunities require pre-approval Proportion of program energy use reduction increasing for T12 to T8s, T8 High Bay, Low Watt T8 Lamps, Screw-in CFLs

11 Small Business Lighting Franklin Energy, lighting consultant Targets lighting retrofit opportunities for Xcel business customers with peak demand of 400 kW Start-to-finish project assistance Free on-site lighting assessments Recommendations for lighting improvements Assistance completing and submitting the Xcel Energy rebate paperwork. Francis Xavier, Program Manager, Franklin Energy

12 Xcel Energy Non-prescriptive Programs Non-prescriptive rebates For equipment and conservation efforts not covered in the prescriptive programs Preapproval required Rebate amounts and energy savings may vary greatly by project Included programs: Custom Efficiency Lighting Evaluation Worksheet Business New Construction Energy Design Assistance Energy Efficient Buildings Energy Management Systems

13 Xcel Energy Studies/Audits Studies/Audits Xcel Energy funds a portion of a study – leads to identifying energy-saving opportunities Preapproval required Additional rebate opportunities can be realized by submitting a prescriptive or custom rebate application Included programs: Lighting Redesign Commercial Real Estate Compressed Air Energy Analysis Recommissioning Refrigeration Recommissioning

14 Xcel Energy Program Results in Colorado Small Business, Commercial and Industrial 2009 (Year-End) 36 MW demand reduction 143 GWh annual energy use reduction > 50% from Lighting Efficiency That trend continues in 2010 DAH comments

15 LED Lighting Addition to Colorado Lighting Efficiency and Small Business Programs Provide prescriptive rebates for the following types of LED Lighting Interior lighting applications Screw-in or Pin-based Lamps: $20-30/lamp, retrofit and new construction – ENERGY STAR qualified only. Downlight Fixtures: $ /fixture retrofit, $50-75 NC – ENERGY STAR qualified only. Outdoor lighting applications Store Canopy & Soffit Lighting: $275/fixture retrofit, $150 NC; no ENERGY STAR requirement Refrigerated Case Lighting LED strip lighting: $100/door retrofit, $70/door NC

16 LED Product Notes Parking Garage Lighting, Parking Lot Lighting and Signage were also evaluated for prescriptive rebates To remain in Custom Efficiency for now Too few Custom Efficiency participants to properly evaluate Lighting level requirements not standardized for parking garages, parking lots Signage projects too unique to properly create a prescriptive rebate

17 LED Prescriptive Rebate List LED Lamps – Retrofit or New Construction Standard LampEnergy Star Lamp Rebate Amount Halogen or IncandescentLED 5W$20 per lamp Halogen or IncandescentLED 6W – 10W$22 per lamp Halogen or IncandescentLED 11W – 20W$35 per lamp Photos: OSRAM Sylvania

18 LED Prescriptive Rebate List LED Fixtures – Retrofit or New Construction Standard FixtureEnergy Star FixtureRebate Amount IncandescentLED 15W$100 or 50 per fixture IncandescentLED 16W – 25W$100 or 50 per fixture IncandescentLED 26W – 35W$125 or 75 per fixture IncandescentLED 36W – 50W$125 or 75 per fixture Photo: Renaissance LightingPhoto: Phillips

19 LED Prescriptive Rebate List LED Outdoor Lighting – Retrofit or New Construction Standard FixtureNew Fixture *Rebate Amount Metal Halide Canopy or Soffit lightingLED 25W – 50W$275 or $150 per fixture Metal Halide Canopy or Soffit lightingLED 51W – 100W$275 or $150 per fixture Metal Halide Canopy or Soffit lightingLED 101W – 150W$275 or $150 per fixture Photos: BetaLED * Energy Star qualification not required for LED canopy/soffit

20 LED Prescriptive Rebate List LED Refrigerated Case Lighting – Retrofit or New Construction Standard FixtureNew Fixture *Rebate Amount T8 or T12 FluorescentLED Strip Lighting$100 or $70 per door Photos: GE * Energy Star qualification not required for LED case lighting

21 LED Timeline and Next Steps Product Development Approval (April, 2010) CO 60-day Notice (5/7/10) Expected launch July 7 Actual effective date June 7 Build program (channel planning, collateral development, Web, training, outreach) Monitor LED product additions to ENERGY STAR Similar to T8 ballast and lamp qualification via CEE Adjust LED program measures as prices change