Executing
The Energy Supply Plan

                  Financial
                 Performance

                  Regulators/
...
Excellence in Generation

 Strong operational performance
 Environmental stewardship
 Strong cost management
 Proven const...
Coal Plant Non-Fuel O&M Expense
     Dollars per MWh 2004 average
14

12

10

 8

 6
        3.65
 4

 2

 0
      Xcel En...
Coal Plant Fuel Expense
     Dollars per MWh 2004 average
30

25

20

15
              11.33
10

 5

 0
           Xcel En...
Nuclear Fuel Expense
    Dollars per MWh 2004 average
8


6

                             4.64
4


2


0
                 ...
Xcel Energy Supply Sources
             2004                         2005 Owned
      Energy Supply Mix*               Gen...
NSP Supply Sources
              2004                        2005 Owned
       Energy Supply Mix*            Generating Fa...
PSCo Supply Sources
             2004                        2005 Owned
      Energy Supply Mix*              Generating F...
SPS Supply Sources
             2004                   2005 Owned
      Energy Supply Mix*         Generating Facilities

...
Excellence in Generation

 Strong operational performance
 Environmental stewardship
 Strong cost management
 Proven const...
NSP Major Fossil Plant Availability

   Percent
                                             89
               88     87  ...
NSP Nuclear Plant Availability

   Percent
               95     94      93
                                          85
 ...
PSCo Major Fossil Plant Availability

    Percent
       90                90                 89
                         ...
SPS Major Fossil Plant Availability

    Percent
       91        91      90      89         86




    2001      2002    ...
Excellence in Generation

 Strong operational performance
 Environmental stewardship
 Strong cost management
 Proven const...
CAIR and Mercury Compliance Plan
 Colorado is exempt from CAIR
 Filed suit contesting inclusion of West Texas
 in CAIR
 NS...
Environmental Compliance
  Costs Minimized by Allowance
  Purchases and Investment

              Dollars in millions
    ...
NSP Environmental Initiatives
Owned generation (GWh)                             Pounds per MWh
40,000                    ...
PSCo Environmental Initiatives
Owned generation (GWh)                             Pounds per MWh
35,000                   ...
SPS Environmental Initiatives

Owned generation (GWh)                         Pounds per MWh
35,000                       ...
Excellence in Generation

 Strong operational performance
 Environmental stewardship
 Strong cost management
 Proven const...
Energy Supply Sourcing Initiatives

YTD Delivered Sourcing Savings       Sourcing Savings
                                ...
Energy Supply Plant
    Condition Assessment
        Colorado (Overall)




                                          Auxi...
Energy Supply Additional
     Cost Saving Initiatives

         Insurance Premiums                         YTD 2005
      ...
Energy Supply Material Inventory

  Dollars in millions

       82
                        78      74       73




   2002...
Excellence in Generation

 Strong operational performance
 Environmental stewardship
 Strong cost management
 Proven const...
Completed Construction Projects

                             Fort St. Vrain
                               737 MWs
      ...
Prairie Island Steam Generators Replaced

                        Two units, 1076 MWs
                        which began ...
NSP New Gas Units
                    Blue Lake
                     2 combustion turbine peaking
                     uni...
NSP MERP — King Plant
                       Detailed design work is 65%
                       complete
   Artist Renderi...
NSP MERP — High Bridge Plant
                       Signed contract for
    Artist Rendering   purchase of 2 CTs and
     ...
NSP MERP — Riverside Plant

    Artist Rendering   Asbestos abatement,
        520 MWs        mercury and lead removal
   ...
PSCo Comanche 3
                          PUC approval January 2005
    Artist Rendering      Major contracts signed for
 ...
NSP Nuclear Relicensing Status

Monticello
 Minnesota PUC, legislative and NRC approvals
 expected 2006 – 2007
  Life Cycl...
Energy Supply Capital
 Expenditures 2001 – 2009

      Dollars in millions
800
                                           ...
Excellence in Generation

 Strong operational performance
 Environmental stewardship
 Strong cost management
 Proven const...
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xcel energy

  1. 1. Executing The Energy Supply Plan Financial Performance Regulators/ Legislators Value to Environmental Customers Stewardship Invest in Regulated Utility Business David Wilks President – Energy Supply
  2. 2. Excellence in Generation Strong operational performance Environmental stewardship Strong cost management Proven construction management skills
  3. 3. Coal Plant Non-Fuel O&M Expense Dollars per MWh 2004 average 14 12 10 8 6 3.65 4 2 0 Xcel Energy US Electric Holding Companies Source: Credit Suisse First Boston November 1, 2005 Report – Costs of Doing Business
  4. 4. Coal Plant Fuel Expense Dollars per MWh 2004 average 30 25 20 15 11.33 10 5 0 Xcel Energy US Electric Holding Companies Source: Credit Suisse First Boston November 1, 2005 Report – Costs of Doing Business
  5. 5. Nuclear Fuel Expense Dollars per MWh 2004 average 8 6 4.64 4 2 0 Xcel Energy US Electric Holding Companies Source: Credit Suisse First Boston November 1, 2005 Report – Costs of Doing Business
  6. 6. Xcel Energy Supply Sources 2004 2005 Owned Energy Supply Mix* Generating Facilities Unit Type Number MW Nuclear Gas Coal 36 8,138 12% 27% Natural Gas 61 4,918 Renewables Nuclear 3 1,617 7% Hydro 83 508 Oil 24 492 RDF 6 96 25 * Wind - Coal ** Total 15,794 54% * Additionally, Xcel Energy * Includes purchases purchases 928 MWs of wind ** Low-sulfur western coal power
  7. 7. NSP Supply Sources 2004 2005 Owned Energy Supply Mix* Generating Facilities MW Unit Type Renewables 3% Nuclear Manitoba Hydro Coal 3,375 28% 11% Natural Gas 1,758 Total Other Nuclear 1,617 Purchases Purchases Hydro 266 Gas 12% Oil 492 2% RDF 96 Total 7,604 Coal** 44% * Includes purchases ** Low-sulfur western coal
  8. 8. PSCo Supply Sources 2004 2005 Owned Energy Supply Mix* Generating Facilities Purchases Unit Type MW 37% Coal 2,617 Gas Natural Gas 982 11% Renewables Hydro 242 0.2% Wind 25 Total 3,866 Coal ** 52% * Includes purchases ** Low-sulfur western coal
  9. 9. SPS Supply Sources 2004 2005 Owned Energy Supply Mix* Generating Facilities Unit Type MW Purchases Gas Coal 2,146 20% 24% Natural Gas 2,178 Total 4,324 Coal ** 56% * Includes purchases ** Low-sulfur western coal
  10. 10. Excellence in Generation Strong operational performance Environmental stewardship Strong cost management Proven construction management skills
  11. 11. NSP Major Fossil Plant Availability Percent 89 88 87 85 83 83 2001 2002 2003 2004 2005 2005 YTD YTD without 3rd Qtr MERP units
  12. 12. NSP Nuclear Plant Availability Percent 95 94 93 85 83 2001 2002 2003 2004 2005 YTD 3rd Qtr
  13. 13. PSCo Major Fossil Plant Availability Percent 90 90 89 88 87 2001 2002 2003 2004 2005 YTD 3rd Qtr
  14. 14. SPS Major Fossil Plant Availability Percent 91 91 90 89 86 2001 2002 2003 2004 2005 YTD 3rd Qtr
  15. 15. Excellence in Generation Strong operational performance Environmental stewardship Strong cost management Proven construction management skills
  16. 16. CAIR and Mercury Compliance Plan Colorado is exempt from CAIR Filed suit contesting inclusion of West Texas in CAIR NSP SO2 credits to last through 2020 SPS to purchase SO2 allowances Investment of $50 – 60 million to meet NOX standards at NSP and SPS PSCo expected to meet mercury reduction requirements with Comanche 3 and Comanche 1 & 2 modifications Testing and evaluating approaches to reduce mercury at NSP and SPS
  17. 17. Environmental Compliance Costs Minimized by Allowance Purchases and Investment Dollars in millions 350 300 Allowances Capital 250 Investment 200 150 100 50 0 Allowances 100% 0% Investment 0% 100% Note: The curves are conceptual
  18. 18. NSP Environmental Initiatives Owned generation (GWh) Pounds per MWh 40,000 5.0 35,000 4.0 30,000 25,000 3.0 20,000 2.0 15,000 10,000 1.0 5,000 0.0 0 1997 1999 2001 2003 2005 2007 2009 Forecast Nitrogen Oxides emissions Owned generation (GWh) Sulfur Dioxide emissions
  19. 19. PSCo Environmental Initiatives Owned generation (GWh) Pounds per MWh 35,000 8.0 30,000 6.0 25,000 20,000 4.0 15,000 10,000 2.0 5,000 0.0 0 1997 1999 2001 2003 2005 2007 2009 Forecast Nitrogen Oxides emissions Owned generation (GWh) Sulfur Dioxide emissions
  20. 20. SPS Environmental Initiatives Owned generation (GWh) Pounds per MWh 35,000 8.0 30,000 6.0 25,000 20,000 4.0 15,000 10,000 2.0 5,000 0.0 0 1997 1908 1999 2000 2001 2002 2003 2004 2005 Forecast Nitrogen Oxides emissions Owned generation (GWh) Sulfur Dioxide emissions
  21. 21. Excellence in Generation Strong operational performance Environmental stewardship Strong cost management Proven construction management skills
  22. 22. Energy Supply Sourcing Initiatives YTD Delivered Sourcing Savings Sourcing Savings Maintenance Repair Dollars in thousands 942 and Operations (MRO) 830 O&M Capital Turbine Overhaul Initiative 526 Characteristics 192 Provide cost savings 32 4 Consolidate supply base Price Cost Value Savings Avoidance Added Includes supplier Sourcing Savings (millions) performance program for O&M Total = $1.0 continuous improvement Capital = $1.5 YTD Total = $2.5 YE Projections/Negotiated ~ $7.0
  23. 23. Energy Supply Plant Condition Assessment Colorado (Overall) Auxiliary Boiler Water Makeup Circ Water Makeup CT Water Makeup Ash Fuel Handling FGS Environmental Generator Reservoir Forebay Diesel Engine Combustion Turbine Soot Blowing Turbine Water Gathering Electrical Fuel Power Tunnel Support Equipment Plant Boiler Cooling Tower Feedwater Condenser Steam Controls Emissions Radiators Circulating Water Equipment Units N Y N N G N N N N G G N N N G N G G N N N N N N G Alamosa 1 N G N N G N N N N G G N N N G N G G N N N N N N G Alamosa 2 Y G G R Y G R N G Y G N N Y Y G N Y G N N N Y R G Arapahoe 3 Y G G Y G R R N G G Y G N N Y Y Y N Y G N N N R Y Arapahoe 4 N G N N N N N N G Y Y N N N N N G N N N N N Y N Cabin Creek A N G N N N N N N G Y Y N N N N N G N N N N N Y N Cabin Creek B Y G G R Y N R N G G G G N N N R Y R N G G N N N Y R Cameo 1 Y G G Y Y N R N G G G Y N N N R R N R N G G N N N Y R Cameo 2 Y Y Y Y G G G N Y G Y R N N R Y G N Y Y N N N G Y Cherokee 1 Y Y Y Y R G G N Y G G R N R Y G N G G N N N G Y Cherokee 2 Y Y Y Y G G G N Y G G R G R Y G N Y G N N N G G Cherokee 3 Y Y Y G Y G G N Y G G R N G R Y Y N G G N N N G G Cherokee 4 Y Y Y Y G G Y N Y G Y Y N N G Y N Y N G G N N N Y Y Comanche 1 Y Y G Y Y G Y N Y G Y Y N G G Y G N R Y N N N Y Y Comanche 2 N G G Y G N N G Y N N Y Y N N G N N N Denver Steam N G N N G N N N N G G N N N G N N G G N N N N N N G Fort Lupton 1 N G N N G N N N N G G G N N N G N N G G N N N N N N G N Fort Lupton 2 N Y G N Y Y Y N G Y Y Y N N N G Y N Y Y N N N N Y G G Fort St Vrain 1 N G N G G N N N N N G Y N N N G G N G Y N G N N N N N N Fort St Vrain 2 N G N G G N N N N N G G N N N G G N G G N N N N N N N N Fort St Vrain 3 N G N G G N N N N N G G N N N G G N G Y N G N N N N N N Fort St Vrain 4
  24. 24. Energy Supply Additional Cost Saving Initiatives Insurance Premiums YTD 2005 Cost Savings Dollars in millions 18 Insurance premium $2.6 M 15 12 Vendor management meetings 1.3 9 $6.9 Cost Reduction 6 MRO alliances 0.6 3 Total savings $4.5 M 0 2003* 2004* 2005* 2006* * Year ended June
  25. 25. Energy Supply Material Inventory Dollars in millions 82 78 74 73 2002 2003 2004 2005 YTD 3rd Qtr
  26. 26. Excellence in Generation Strong operational performance Environmental stewardship Strong cost management Proven construction management skills
  27. 27. Completed Construction Projects Fort St. Vrain 737 MWs Completed May 2001; on-time and within budget Black Dog 5 162 MWs Completed November 2002; on-time and within budget
  28. 28. Prairie Island Steam Generators Replaced Two units, 1076 MWs which began commercial operation late 1973/1974 Steam generators replaced on unit 1 November 2004 after 30 years of operations Project completed on time and within budget
  29. 29. NSP New Gas Units Blue Lake 2 combustion turbine peaking units totaling 320 MWs installed Online May 2005; on time and under budget Capacity factors of 16% and 18% from June through August Angus Anson One 160 MW combustion turbine peaking unit installed Online May 2005; on time and under budget Capacity factor of 25% for June through August
  30. 30. NSP MERP — King Plant Detailed design work is 65% complete Artist Rendering Piling work is complete; One Unit – 571 MWs foundation installation work continues First permanent support steel was set on August 3, as scheduled SCR and AQCS components continue to be received at the site. Initial SCR ductwork was installed during September outage Scheduled for commercial operations May 2007
  31. 31. NSP MERP — High Bridge Plant Signed contract for Artist Rendering purchase of 2 CTs and 575 MWs 1 steam turbine. Resulted in $40 million savings Gas pipeline awarded to NSP Gas All permits have been issued and site remediation work began August 2005 Full construction release Project planned to be completed by May 2008
  32. 32. NSP MERP — Riverside Plant Artist Rendering Asbestos abatement, 520 MWs mercury and lead removal activities underway on old section Began site development study in April 2005 Permitting and equipment design began in Fall 2005 In-service scheduled for May 2009
  33. 33. PSCo Comanche 3 PUC approval January 2005 Artist Rendering Major contracts signed for One Unit – 750 MWs Net turbine generator, boiler and air quality control system – within budget Air permit approved July 15, 2005 Began construction in October 2005. Major contractors start May 2006 Construction completed fall 2009 at a total cost of $1.35 billion New unit $1.073 B Transmission $150 M Retrofit 1 & 2 $127 M
  34. 34. NSP Nuclear Relicensing Status Monticello Minnesota PUC, legislative and NRC approvals expected 2006 – 2007 Life Cycle modifications to be installed 2008 – 2012, projected capital cost of $150 – 200 million Prairie Island Begin license application to the NRC and Minnesota Legislature in 2008 Life Cycle modifications under evaluation Approvals expected 2010 – 2011
  35. 35. Energy Supply Capital Expenditures 2001 – 2009 Dollars in millions 800 MN MERP 700 Comanche 3 600 Blue Lake CTs 500 Angus Anson CTs 400 TX CAIR/Hg 300 MN CAIR/Hg 200 Base Budget Actual 100 0 2001 2002 2003 2004 2005 2006 2007 2008 2009 Forecast
  36. 36. Excellence in Generation Strong operational performance Environmental stewardship Strong cost management Proven construction management skills

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