Keynote Session “Status of Hydropower Development in the GMS”

Mr. Nikom Kraitud Engineer Level 6, Civil and Hydro Power Engineering Division Electricity Generating Authority of (EGAT)

1 Installed Capacity in Power System in Thailand June 2017

Total Installed Capacity for Thailand's Power System: 41,723.25 MW

56.48 % 8.3% Hydropower in Thailand 3,448.4 MW

5% Hydropower from Lao PDR 2,104.60 MW EGAT’s Hydropower Plant

2 Neighboring Country’s EGAT’s Hydropower Plants Hydropower Plants NO. HYDROPOWER PLANT INSTALLED CAPACITY NO. HYDROPOWER PLANT Capacity (MW) (MW) 1 BHUMIBOL 779.2 Existing Hydropower Development in Lao PDR 1 Theun-Hinboun 214 2 500 2 Houay Ho 126 3 SRINAGARIND 720 3 Nam Theun 2 948 4 KHAO LAEM / 300 4 Nam Ngum 2 596.6 5 RAJJAPRABHA 240 5 Theun-Hinboun Expansion 220 6 PAK MUN 136 7 25.2 Sub Total 2,104.60 8 36 Future Hydropower Development in Lao PDR 1 Xe-Pian Xe-Namnoy 354 9 40 2 Nam Ngiep 1 269 10 KANG KRACHAN 19 3 Xayaburi 1220 11 BANG LANG 76 4 Nam Theun 1 500 12 THA THUNG NA 39 13 NAM PUNG 6 Sub Total 2,343.00 14 MAE NGAT 9 15 HUAI KUM 1.06 16 BAN SANTI 1.28 17 BAN YANG 0.12 18 BAN KHUN KLANG 0.2 19 KLONG CHONG KLAM 0.02 20 HUAI KUI MANG 0.1 21 LAM TA KONG UNIT 1-2 500 22 Naresuan 8 23 Chao Phraya 12 24 Khun Dan Prakan Chon 10 25 Khwae Noi 30

Total Installed Capacity 3,488.18 In June 2017 3 HP Development in GMS Existing Hydropower Project NO. HYDROPOWER PLANT INSTALLED CAPACITY (MW) 1 LAM TA KONG UNIT 1-2 500 2 CHULABHORN 40 HUAI KUM 1.06 3 UBOL RATANA 25.2 4 NAM PUNG 6 5 SIRINDHORN 36 NP 6 UR 25.2 4 6 PAK MUN 136 2 3 2 CLB 40 8 Total Installed Capacity 744.26 6 CLB SHP 1.25 Hydropower Project under construction CLB-PSP 800 4 Hydropower Project under construction LTK SHP 1.5 3 6 PMN 136 NO. HYDROPOWER PLANT INSTALLED CAPACITY 1 5 7 (MW) LTK PSP 500 5 SRD 36 1 LTK PSP 500 1 LAM TA KONG UNIT 3-4 500 2 CHULABHORN 1.25 Mekong tributaries inThailand (Kong Basin, Chi Basin and Mun Basin) Total Installed Capacity 501.25 Planning for Small Hydropower Project at Existing Irrigation Dam

No. Project Installed Capacity Basin MW 1 Lam Ta Kong 1.50 Mun 2 Lam Pao 2.50 Chi 3 That Noi (Diversion Dam) 2.00 Chi 4 Yasothorn - Phanom Phai (Diversion Dam) 4.00 Chi 5 Hua Na (Diversion Dam) 1.00 Mun 6 Mahasarakham (Diversion Dam) 3.00 Chi

7 Lam Dom Yai (Diversion Dam) 2.00 Mun 8 Kamalasai (Diversion Dam) 1.00 Chi 17.00 Planning for Pumped Storage Hydropower Project NO. HYDROPOWER PLANT INSTALLED CAPACITY (MW) 1 CHULABHORN 800

Total Installed Capacity 800.00

4 Example for Small hydropower Project at Existing Irrigation Dam

Chao Phraya Mae Klong Naresuan

Pasak Jolasid Khun Dan Prakan Chon Khwae Noi

5 Pumped Storage Hydropower Projects

Lam Ta Kong Pumped Storage Unit 1-2 : 2x250 MW (COD in 2004) Unit 3-4 : 2x250 MW (COD in 2018)

6 Pumped Storage Hydropower Projects

adjustable speed pump-turbine is proposed for supporting the renewable energy (solar and wind)

Chulabhorn Pumped Storage : 800 MW (COD in 2026)

7 Emerging Constraints on Operational Coordination of HP Projects in Thailand

• Electricity from Hydropower is served for peak load. • The operation of hydropower make for minimum release water as per the monthly/weekly water requirement plan. • Urbanization in the downstream area (Water requirement for Water supply, Environmental Flow and Flood Mitigation are important) • The operation of hydropower is limited for the riparian house, tourism and fishery. However, EGAT uses the telemetering system for monitoring during operation.

8 8 Emerging Constraints on Operational Coordination of HP Projects in Thailand The constraint for Hydropower Development

• The potential sites are limited due to the topography condition. The potential sites are mainly located in Watershed Class 1A where are the forest cover that has never faced the disturbance of any kind. The environmental impact is very concerned. • NGO/ Some Civil Society not accept for the large hydropower development.

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