1. Washington D.C. September 10, 2004 Electricity Generating Authority of Thailand Thailand Power Development Plan (PDP2004, 2004-2015)

2. Thailand Power Sector MEA, PEA (Distribution) NEPC (Chaired by Prime Minister) Customer Private Co. IPP, SPP PPA EGAT (Generation, Transmission) 2

3. THAILAND POWER DEVELOPMENT PLANNING OBJECTIVES To generate and supply power to meet demand with good quality and high reliability To generate power at least cost To control the environmental and social effect at the lowest level 3

4. BASIC Procedure for Power Development Plan Study Load Forecast Criteria and Assumption PDPPDP 1 1 2 2 3 3 4

5. ENERGY CONSUMPTION IN THAILAND ( FISCAL YEAR 2003 ) TOTAL 104,389 GWh Others 6,617 GWh 6.3% Small General Service 10,207 GWh 9.8% Residential 23,034 GWh 22.1% Medium General Service 19,667 GWh 18.8% Large General Service 41,655 GWh 39.9% Specific Business 3,209 GWh 3.1% 5

6. TOTAL ENERGY DEMAND Residential Small General Service Specific Business Government & Non-Profit Street Lighting Medium& Large General Service 59 % End-Use Approach Regression between Energy & GDP Bussiness Regression between Energy & GDP Hotel Regression between Energy & GDP Public Regression between Energy & Population Projected Energy Intensity GDP by Production Sub-Sector Load Forecast Principle Methodology 6 9.8 % 3%3% 22 %

7. (Load Profile) Total Generation Requirement Demand 7

8. 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50,000 199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015 MW Fiscal Year MEG (GDP 6%) TEG (GDP 7.5%) LEG (GDP 4%) Load Forecast January 2004 Jan, 2004 8

9. 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50,000 199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015 MW Fiscal Year MEG (GDP 6%) TEG (GDP 7.5%) LEG (GDP 4%) Load Forecast January 2004 Aug 02 (GDP 4.7%) Jan, 2004 9

10. THAILAND POWER DEVELOPMENT PLANNING CRITERIA AND ASSUMPTIONS CRITERIA AND ASSUMPTIONS 2. Introduction of a 500 MW for peak cutting. 4. Power purchase from the neighbouring countries/ new capacity. 1. Minimum Reserve Margin  15%. 3. RPS 5% (630 MW). 12

11. EGAT Generation Requirement - Peak Cut 500 MW Unit : MW 13 * * * * * * *

12. 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50,000 PDP 2004 2014 20052006 2007 2008 20092010 2011 2004 2012 2015 2013 SPP 20.2 MW 12 1 4 3 3 4 = 23 Units 4 1 26.8% 19.9% 13.7% 15.3%15.5%15.9% 14.3% 14.4%15.3%14.3% 14.6% 14.2% SPP 163.7 MW RPS + 175 MW INSTALLED CAPACITY AND PEAK GENERATION IN 2004-2015 INSTALLED CAPACITY DEPENDABLE CAPACITY Reserve Margin CAPACITY (MW) Krabi #1 340 MW, Lan Krabu 122 MW Lam Takong PS. #1-2 2x500 MW, SPP 102.2 MW BLCP Power #1-2 2x673.25 MW GULF Power (Additional) 700 MW Song Khla CC 700 MW GULF Power 700 MW Ratchaburi Power #1-2 2x700 MW North Bangkok CC # 1 700 MW South Bangkok CC # 1 700 MW Purchases from Lao (Nam Thuen 2) 920 MW Bang Pakong CC # 5 700 MW New Capacity 4x700 + 140 MW New Capacity 3x700 + 105 MW New Capacity 4x700 + 140 MW PEAK DEMAND FISCAL YEAR 14

13. GWh 15% 12% 11% 8% 9% 7% 74% 75% 76% 71% 14% 19% 26% 32% 13% FISCAL YEAR 10% 9% 8% 7% 72% 70% 66% 65% FORECAST OF ENERGY GENERATION BY TYPE OF FUELS 64% 60% 54% 49% 6% 2003 20042005 20062007 20082009 20102011 20122013 20142015 15

14. Thailand Minimum Reserve Margin (NT2, 920 MW) 16 * Install Capacity 25,705 MW (March 2004)

15. Sensitivity Study Load Forecast (Up to 2010) 1.MEG Adjust 2004 : 19,326 MW (19,600 MW) Future Growth as MEG ( 7.1% Per Year) 2010 Load difference 418 MW 2. MEG Adjust 2004 : 19,326 MW (19,600 MW) Future Growth as 2004 ( 6.64% Per Year) 2010 Load difference 1,383 MW 17

16. Thailand Minimum Reserve Margin (Study Case) (NT2, 920 MW) 18

17. Sufficiency With Least Cost, No Brownout, No Rolling Blackout, No Blackout 24 Thailand Power Development Plan