1. The Future of Clean Energy Developments in Sustainable Technology
Ben Fowke Executive Vice-President and Chief Financial Officer

2. Xcel Energy Service Territory
Northern States Power Company- Minnesota
Northern States Power Company- Wisconsin
Public Service Company of Colorado
Xcel Energy Electric Customers 3.4 million Gas Customers 1.9 million
Southwestern Public Service
Largest provider of retail wind energy in U.S.

3. Environmental Leadership
Carbon Emission Reduction: Reduced by 26 million tons since 2003
Renewable Energy: 3,643 MW on our system in 2008
Energy Conservation: Avoided more than eleven 250-MW plants
SO2/NOx: Reduced 66K tons of SO2 and 43K tons NOx

4. Projected Resource Mix
Energy
2008
2020
Nuclear
12%
Nuclear
13%
Renewables 24%
Renewables 13%
Natural Gas
22%
Natural
Gas
17%
Other 1%
Coal
52%
Coal
46%
Capacity
Wind Hydro Solar Biomass RDF Landfill Geothermal MW
2008 2,
2020 7,

5. Geographic Advantage Biomass Resource Wind Resource Solar Resource
Xcel Energy
States Served
Wind Density
High
Low
Source: National Renewable Energy Laboratory

6. American Clean Energy and Security Act (ACES)
Projected Electric Sector CO2 Emissions and Allocation
Million metric tons CO2

7. Meeting the Challenge EPRI: Value of Clean Technologies*
500
1000
1500
2000
2500
3000
3500
1990
1995
2005
2010
2015
2020
2025
2030
U.S. Electric Sector CO2 Emissions (million metric tons)
EIA Base Case 2007
* Achieving all targets is very aggressive, but potentially feasible
Technology
Advanced Coal Generation
Distributed Generation
Plug-in Hybrid Vehicles
Carbon Capture & Sequestration
Efficiency
Renewables
Nuclear Generation

8. NSP Planned Carbon Reductions
CO2 with Reductions
CO2 Reduction from 2005 Existing Levels
Wind MH
Upgrades
DSM
MERP
CO2 w/o Reductions
Tons CO2
2005
2020
20,000,000
25,000,000
30,000,000
35,000,000
40,000,000
15,000,000
CO2 Levels
Carbon Emissions Reduction 20+% by 2020

9. Wind: A Model for Technological InnovationMW

10. New Renewable Potential

11. Energy Storage

12. Achieving Demand Side Savings
Premium Efficiency Motor
LED Lighting

13. SmartGridCityTM Two-way Communications BPL Cellular/WiFi/WiMax
Transmission Line
Two-way Communications
BPL
Cellular/WiFi/WiMax
Meshed solutions
Substation
Grid Monitoring/Control
Substations
Transformers
Control points
End User
Distribution System
End user becomes part of the solution 13

14. Smart Grid Customer Applications

15. PHEV and New Supply Sources
Pictures from CarbonDay

16. Investment Horizon
US Shareholder-Owned Electric Utilities Capital Spending: Trailing 12 Months
Dollars in billions
Source: EEI

17. Technology Development Continuum
Research & Development Demonstration Deployment
Traditional utility
industry position
Utility role responsive to demand
for cleaner technologies

18. Aligning Interests
Customers
Regulators
Utilities