1. Transmission Upgrades: Key to Reliable & Affordable Energy Rocky Mountain Subregional Transmission Planning September 26, 2003

2. 1 Reserves & 2002 sales volume in millions of short tons. Source: Peabody analysis & industry reports. PEABODY ENERGY PROFILE Peabody Fuels More Than 9% of U.S. Electricity Largest Private-Sector Coal Company in the World

3. 2 BROAD BASED BUSINESS GROUP OF THE WEST Western Business Roundtable Represents 22 businesses from West –Financial services –High technology –Manufacturing –Oil & gas producers –Pharmaceuticals –Pipeline –Renewable energy production –Telecommunications –Private and Public Utilities –Accounting –Agricultural products –Chemicals –Coal and other forms of mining –Construction and construction materials –Conventional energy production –Engineering services

4. 3 ENHANCED US TRANSMISSION SYSTEM Significantly Reduced Impact of Last 3 Energy Events Western Energy crisis of 2000 – 01 –Low cost energy could not reach California –Gas prices to move higher than they should have –Enabled markets to be abused Natural gas price increases in winter 2002 - 03 –Extra coal based generation in Middle US could not reach markets in East and South to reduce demand for natural gas by 0.5 – 1.0 TCF –Result was higher gas prices for all Blackout in August 2003 likely could have been completely mitigated if there were one or at most two more high voltage lines in the Cleveland area

5. 4 NEED BASELOAD GENERATION & TRANSMISSION Basic Electricity and Energy Infrastructure Needed Load growth of more than 60% in last 20 years –Little new baseload resources added –HV transmission expanded less than 20% Hydroelectric output reached maximum potential – weather driven Nuclear generation capacity reaching output limit –1990, 66% capacity factor - 2002, 90% capacity factor Coal generation capacity becoming fully utilized –1990, 59% capacity factor- 2002, 69% capacity factor –Western coal capacity factor at 82% 95% of capacity added since 1990 was gas But, …. 72% of increased electric consumption met by coal & nuclear – real prices fell Clear Skies-like legislation likely to close 5 - 10% of existing coal fleet – small, older, higher cost plants

6. 5 7.3¢ 30% 5.9¢ 62% 5.6¢ 95% 5.9¢ 9% 5.5¢ 63% 4.7¢ 96% 6.0¢ 78% 6.6¢ 8% 6.3¢ 75% 6.7¢ 88% 8.4¢ 52% 11.8¢ 2% 5.3¢ 94% 6.4¢ 42% 6.8¢ 38% 6.1¢ 84% 5.9¢ 67% 5.6¢ 64% 6.1¢ 82% 7.4¢ 46% 7.1¢ 41% 6.2¢ 69% 5.8¢ 49% 6.1¢ 26% 7.0¢ 57% 5.3¢ 95% 6.6¢ 91% 9.2¢ 3% 10.9¢ 19% 6.3¢ 36% 5.7¢ 58% 6.3¢ 66% 5.9¢ 39% 4.3¢ 94% 6.2¢ 51% 8.0¢ 56% 5.1¢ 98% 6.7¢ 60% 5.7¢ 62% 5.8¢ 0% 10.4¢ 5% 13.1¢ 14% NH10.5¢27% RI 9.2¢ 0% CT 9.7¢10% NJ 9.4¢16% MA10.0¢29% VT10.9¢ 0% DE 6.8¢59% MD 6.5¢60% ¢ = average price per kilowatt hour for 2002 % = percent of total generation from coal for 2002 <7.0¢ 7.0¢ - 9.0¢ >9¢ Hydro RESULTS OF US ENERGY POLICY U.S. Low-Cost Electricity Comes from Coal and Hydro Over 50% of the Electricity in the U.S. Comes from Coal Source: Energy Information Administration, May 2003.

7. 6 FLAWED US ENERGY/ELECTRICITY POLICY Enhanced Transmission System Needed De facto national electricity/energy policy of last 15 years fundamentally flawed “Natural gas generation at load” Fundamentally flawed in two respects –Gas will not be cheap ($2 – 3/mmbtu) and plentiful –Transmission far more valuable than generation at load All incremental electricity load in most of US served by gas –Electric rate increases/fuel adjustment increases coming Home heating and industrial process costs increase 30 – 50%

8. 7 FLAWED US ENERGY/ELECTRICITY POLICY Natural Gas Will Not Be Cheap and Plentiful US natural gas reserves cannot keep up with demand – decline rates Natural gas and therefore electricity prices have and will increase Recession and extreme mild weather only reason US did not have high gas prices 3 years in a row LNG is 5 – 7 years away and creates OPEC like dependence Interim, competition between home heating, industrial process and electric power generation –Industry loses hence exit of petrochemical, fertilizer, aluminum, pulp & paper, etc Gas is most efficiently used to heat homes and in industrial process (80 – 95%) versus producing electricity (50 – 60%) More disposable consumer spending will go to heating and electricity bills versus consumer products, medical or other areas

9. 8 COAL IS LESS VOLATILE THAN OTHER FUELS Coal’s Consistent Price Plateau Delivered cost of fossil fuel at steam electric utility plants. Source: Energy Information Administration, Electric Power Monthly and January 2003 Short Term Energy Outlook. NYMEX HH Futures closing price for July 2003. Coal Natural Gas Delivered Cost of Fuel for Generation NG Annual Avg. NYMEX HH Futures Forecasted Coal

10. 9 FERC RECENTLY NOTED Natural Gas Frequently Sets Regional Electric Price Note: Percent of time natural gas or oil is projected to be on the margin in 2003. Source: Cambridge Energy Research Associates (CERA), April 30, 2003..

11. 10 1 2 3 4 5 6 7 8 9 NuclearCoalTransmission Lines:Legend:345 V500 V765 V Transmission Tie

12. 11 FLAWED US ENERGY/ELECTRICITY POLICY Transmission More Valuable Than Generation at Load Enables lowest cost generation to serve load, be it hydro, nuclear, wind or coal and reduces demand on high cost fuels like gas Arbitrages hydro conditions and fuel price volatility Mitigates potential market power abuse (Western Crisis) Insurance against catastrophic events (August Blackout) Transmission is a market enabler Transmission value dramatically increases when high priced gas is displaced by low variable cost generation

13. 12 Western Generation Requires Multi-State Transmission Wind in the Front Range and certain Coastal areas Coal in the Rocky Mountain Region Hydro in Pacific Northwest and Canada? Load growth in Southwest and Salt Lake

14. 13 Requirements to Develop New/Enhance Transmission Estimate economic value of enhanced transmission –Over range of hydro availability and fuel price scenarios –Over a few generation addition scenarios – gas, wind and coal Identify interregional beneficiaries of new transmission –Provides state and federal regulators, decision and policy makers with much needed support for approval of projects State, regional and federal power agency approval of cost sharing and revenue recovery method for enhanced transmission Create mechanism to spread cost of new transmission according to beneficiary analysis Siting process for new or enhanced transmission done concurrently and coordinated in affected states with similar involvement from Dept. of Interior agencies, Dept. of Agriculture agencies and Tribal Nations

15. 14 2000 - 2010 electric energy load growth another 20% 2000 - 2010 new transmission miles less than 2% Total Generation Capacity 208,000 MW Gas OnlyBalanced Fuel Type% of Total% of Total Hydroelectric 31 31 Natural Gas 40 29 Coal 18 26 Nuclear & Other 8 9 Geothermal 1 2 Wind 2 3 WESTERN GOVERNOR’S STUDY AUGUST 2001 WESTERN GOVERNOR’S STUDY AUGUST 2001 2010 Western Energy Market – Two Visions

16. 15 Cost of new transmission for Gas Only case $2 B Cost of new transmission for Balanced case $8 B – could be optimized Average market price savings of Balanced versus Gas Only case $7/MWh in 2010. Annual energy consumption in the West in 2010 - 960,000,000 MWh Market savings from Balanced versus Gas case in 2010 - $6.7 B annually Under high gas price scenario, the balanced case could pay for all the new transmission in less than a year. WESTERN GOVERNOR’S STUDY AUGUST 2001 WESTERN GOVERNOR’S STUDY AUGUST 2001 Costs & Savings of Two Alternatives

17. 16 Without Pacificorp’s dedication of significant staff, there is insufficient resources dedicated to execute studies in timely fashion Necessary follow-on studies have no resources Lack of authority and unclear responsibilities No formal or legal entity to develop cost sharing arrangements for projects which show good consumer value Unclear if states will support analysis conducted by SSG- WI SSG-WI has no role in the siting process Who has lead authority to get new or enhance transmission built? SSG-WI Process Logical Next Step, But…..

18. 17 “Natural gas generation at load”, a flawed energy policy –Will not lead to affordable electricity and energy New baseload generation needed in the West –Wind and coal will come from distance resources Regional electricity entities, like the Rocky Mountain Planning Group, needed to facilitate states access to low sources of electricity under variety of scenarios Electricity and energy consumers of the West (industry and residential consumer) very dependent on the West implementing a sustainable energy policy for generation and transmission ROCKY MOUNTAIN TRANSMISSION GROUP ROCKY MOUNTAIN TRANSMISSION GROUP Can Be West’s First Effective Regional Electricity Entity