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Power Development and Future Plan

The current official Thailand Power Development Plan (PDP) is PDP 2010 : 3rd Revision (2012-2030) endorsed by the Cabinet on June 19, 2012. Consequently on March 19, 2013, the Cabinet endorsed the 2011-2030 Action Plan for the 20-Year Energy Efficiency Development Plan (EEDP) as approved by the National Energy Policy Council (NEPC) on February 8, 2013. Furthermore, the Cabinet also endorsed on August 13, 2013 the new Alternative Energy Development Plan (AEDP) 2012-2021 which was approved by NEPC on July 16, 2013. The mentioned action plan of EEDP and the new AEDP are to be used in the revision of PDP which is under the responsibility of the Energy Policy and Planning Office.

EGAT’s Power Projects

During 2014-2019, EGAT’s new power projects with a total capacity of 4,457.9 MW are as follows:

Project Location Fuel Contractual Scheduled (Province) Capacity Commercial (MW) Operational Date (SCOD)

1. Wang Noi Combined Cycle Ayutthaya Natural Gas 768.7 Apr. 2014 Block 42. Chana Combined Cycle Songkhla Natural Gas 782.2 Apr. 2014 Block 23. North Bangkok Nonthaburi Natural Gas 848.3 Jan. 2016 Combined Cycle Block 2 4. Mae Moh Lampang Lignite 540.0 Jan. 2018 (Replacement of Units 4-7)5. Krabi Coal Power Project Krabi Coal 800.0 Jun. 2019 (Clean Coal Technology)6. Renewable Energy - Wind, solar, hydro 718.7 2014-2019 Power Projects

Total 4,457.9

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Power Purchase Projects

Independent Power Producers (IPP) Projects

The following 6 projects during 2014 - 2024 of a total power supply of 9,670 MW consisting of the power projects under construction and the power purchase projects in the 2012 bidding were acknowledged by the National Energy Policy Council (NEPC) on July 16, 2013, and the proposal of the Energy Regulatory Commission (ERC) was endorsed by the Minister of Energy on November 13, 2013.

Small Power Producer (SPP) Projects

The PDP 2010 : 3rd Revision includes 5,258.1 MW of power supply to be purchased from small power producers (SPPs) during 2014-2019 consisting of 3,600 MW power from firm energy contract SPPs using cogeneration system and 1,658.1 MW from SPPs using renewable energy.

Project Location Fuel Contractual Scheduled (Province) Capacity Commercial (MW) Operational Date (SCOD)

1. Gulf JP NS Co.,Ltd. Saraburi Natural Gas 1,600 Jun./Dec. 2014 Blocks 1-22. Gulf JP UT Co.,Ltd. Ayutthaya Natural Gas 1,600 Jun./Dec. 2015 Blocks 1-23. Electricity Generating Plc. Nakhon Si Natural Gas 930 Jul. 2016 Thammarat4. National Power Supply Chachoengsao Coal 540 Nov. 2016/ Co., Ltd. Unit 1-4 Mar. 20175. Chonburi Power Chon Buri Natural Gas 2,500 Mar./Oct. 2021 Generation Co.,Ltd. Mar./Oct. 20226. Siam Eastern Power Rayong Natural Gas 2,500 Mar./Oct. 2023 Co.,Ltd. Mar./Oct. 2024

Total 9,670


Power Import from Neighboring Countries

Currently, EGAT imports electricity under 6 projects with a total capacity of 2,404.6 MW. According to the PDP 2010 : 3rd Revision, during 2014-2019, additional power supply of 3,316 MW will be purchased from neighboring countries.

Power Project Development

To cope with the increasing power demand in the future according to the economic and industrial growth and also to ensure the stability and reliability of the system according to the PDP 2010 : 3rd Revision (2012-2030), the following new power projects have been developed:

1. Expansion of Existing Power Plants

1.1 Chana Combined Cycle Power Plant Project Block 2

The power plant of a total capacity of 800 MW using natural gas as fuel which is located in the area of the existing Chana Power Plant, Chana District, Songkhla Province has been constructed to ensure the stability and reliability of the power system in the Southern region. The construction started in December 2011 and is expected to be completed in September 2014.

The progress of this project in 2013 was 96.20 percent. The first synchronization GT21 was carried out on December 31, 2013.

Project Fuel Contractual Scheduled Capacity Commercial (MW) Operational Date (SCOD)

1. Hong Sa Lignite Units 1-3 Lignite 1,473 Jun./Nov. 2015 Mar. 20162. Xe-Pian Xe-Namnoy Hydro 354 Feb. 20193. Nam Ngiep 1 Hydro 269 Jul. 20194. Xayaburi Hydro 1,220 Oct. 2019

Total 3,316

ChanaCombinedCyclePowerPlantBlock2

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1.2 Wang Noi Combined Cycle Power Plant Project Block 4

The power project of 800 MW capacity using natural gas as fuel which is located in the area of the existing Wang Noi Power Plant, Wang Noi District, Ayutthaya Province is intended to serve the future power demand and to ensure the stability of the power system in the Central area. The construction started in December 2011 and is expected to supply electricity commercially in June 2014.

The progress of this project in 2013 was 97.46 percent. The first synchronization of the steam turbine generator was tested on December 28, 2013.

1.3 North Bangkok Combined Cycle Power Plant Project Block 2

The power project of a capacity of 848.3 MW is located in the area of the existing North Bangkok Power Plant in Bang Kruai Sub-district, Bang Kruai District, Nonthaburi Province to serve the increasing power demand in Bangkok Metropolitan Area and to ensure the stability of the power system in the Central region and the country as a whole. This power station uses a mixture of natural gas from the source in the western coast of Myanmar and the eastern coast of the Gulf of Thailand. The construction of the plant started in February 2013 and is expected to supply electricity to the system on commercial basis in January 2016.

The progress of this project in 2013 was 49.20 percent.

WangNoiCombinedCyclePowerPlantBlock4


2. Renewable Energy Power Plant Development

EGAT has implemented the Renewable Energy Power Plant Development Project in response to the strategy in renewable energy development (2008-2013) of the Ministry of Energy and the condition in the renewable portfolio standard (RPS) requiring that 5 percent of renewable energy power plant development would be conducted.

In 2013, major renewable energy power plants were as follows:

KhunDanPrakancholDamProject

Projects Location Capacity Scheduled (Province) (MW) Commercial Operational Date (SCOD)

Khun Dan Prakanchol Dam Nakhon Nayok 1x10 = 10 June 2013 Mae Klong Dam Kanchanaburi 2x6 = 12 July 2013 Pasak Jolasid Dam Lop Buri 1x6.7 = 6.7 March 2014 Kwae Noi Bamrungdan Dam Phitsanulok 2x15 = 30 June 2015 Thap Sakae Solar Prachuap Khiri Khan 1x5 = 5 December 2014Power Project

NorthBangkokCombinedCyclePowerPlantBlock2

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3. Projects in the Initial Stage of Development

3.1 Clean Coal Technology Power Project

The first clean coal technology power plant project is the extension project of Krabi Power Plant which is located in Khlong Kanan Sub-district, Nuea Khlong District, Krabi Province. With the total capacity of 800 MW using imported coal as fuel, it is expected to supply electricity on commercial basis by 2019.

In 2013, the Environmental Health Impact Assessment (EHIA) of the power plant expansion project and the Environment Impact Assessment (EIA) of loading pier construction project were conducted. They are expected to be completed in 2014 so as to be able to supply electricity on commercial basis in 2019.

3.2 Replacement of Mae Moh Power Plant Units 4-7

During 2009-2010, EGAT had a policy to increase the efficiency in power generation while decreasing the production cost. The result of a feasibility study revealed that it was appropriate to construct a new lignite power plant of a total capacity of 600 MW to replace the existing Units 4-7 of Mae Moh Power Plant which had been in operation for 25 years. It is expected that the new units will be able to supply power on commercial basis in January 2018.

In 2013, the Environmental Health Impact Assessment Report (EHIA) was completed and submitted to the Office of Natural Resources and Environmental Policy and Planning for consideration by the Expert Committee prior to seeking approval from the National Environment Board.

3.3 Nuclear Power Plant

According to the Power Development Plan (PDP) 2010 : 3rd Revision (2012-2030), the Cabinet endorsed the resolution of the National Energy Policy Committee (NEPC) to postpone the development of Nuclear Power Plant from the original schedule to 2023.

In 2013, however, EGAT continued with the preparation for the project which included staff training, locally and abroad, legislative framework, regulatory framework, stakeholder involvement, and dissemination of knowledge on nuclear power. A curriculum on “Electricity in Daily Life” for primary and secondary schools has been prepared by EGAT with the cooperation of the Office of the Non-Formal and Informal Education. Moreover, a text book on “Alternative Energy Utilization” for the secondary school has also been prepared by EGAT together with the Institute for the Promotion of Teaching Science and Technology (IPST).


Transmission System Development and Expansion Projects

EGAT carries out its mission in transmission system planning and development to ensure the stability and reliability of the power system to cope with the growing electricity demand of the country while maintaining the efficiency of the interconnection system to accommodate the power in the country and neighboring countries. Particular attention is given to the risky and significant delivery points to prevent the possibility of blackout in wide area in the future. Moreover, the transmission system development projects have been well prepared for the interconnection system for the upcoming ASEAN Economic Community (AEC) and Smart Grid System.

Major on-going transmission system development and expansion projects and the projects in an approval process are as follows:

On-going Transmission System Projects

1. Bulk Power Supply for the Greater Bangkok Area Phase 2 Project (BSB2)

Being a successive project of the BSB1, BSB2 has an investment cost of 9,170 million Baht. The project comprises the construction of new transmission lines and the upgrade of existing lines totaling 89.025 circuit-kilometers, installation of transformers totaling 9,600 MVA, and voltage control equipment totaling 384.0 MVAr. In 2013, the progress of the project as of November 2013 was 84.89 percent. This project was scheduled to be completed in 2016.

2. Transmission System Expansion Project No.11 (TS.11)

Being a successive scheme of the TS.10, TS.11 covers the transmission system expansion and reinforcement projects in all provincial areas countrywide to strengthen system reliability and support the expansion plan of the new delivery points of the Provincial Electricity Authority (PEA) to assure the power sufficiency and power quality to the end-users. The TS.11 project consists of the construction of transmission lines totaling a distance of approximately 1,922.7 circuit-kilometers, 12 new substations, the installation of transformers of 14,575 MVA, and voltage control equipment of 1,741.2 MVAr. The project has an investment cost of 23,000 million Baht. As of November 2013, the overall project achieved 83.82 percent progress. It was scheduled to be completed in December 2015.

3. Transmission System Development Project for Power Purchase from IPPs

This transmission system project serves electric power purchase from four awarded IPPs’ power plants, totaling approximately 4,400 MW installed capacity. The investment cost of the project is 7,985 million Baht. The progress of each transmission system sub-project is as follows:

3.1 The transmission system for the Gheco-One Power Plant was completed and connected to the grid system since February 11, 2013

3.2 The transmission system for the National Power Supply Co., Ltd. is currently pending due to the power plant rescheduling.

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3.3 The progress of the transmission system for the Gulf JP UT Co., Ltd. was 29.67 percent. It was scheduled to be completed in September 2014.

3.4 The progress of transmission system for the Gulf JP NS Co. Ltd. was 79.56 percent. It was scheduled to be completed in September 2014.

4. Transmission System Development for Power Purchase from Theun Hinboun Hydroelectric Power Plant Expansion Project

The project includes the construction of the 230 kV Nakhon Phanom 2 Substation and relevant transmission lines with a total distance of approximately 108 circuit-kilometers. This transmission system project is to receive more electric power of 220 MW (additional to the former 220 MW) from the Expansion Project of Theun Hinboun Expansion Hydroelectric Power Plant situated in Lao PDR. An investment cost for this project is 665 million Baht. The project has been completed since December 1, 2012. As of November 2013, the progress of the remaining transmission system construction work was 98.61 percent. The whole project was scheduled to be completed in July 2014.

5. Transmission System Development for Power Purchase from Hongsa Lignite-Fired Thermal Power Plant Project

This project is to accommodate the power purchase from Hongsa Lignite-Fired Thermal Power Plant Project in Lao PDR, the country’s first lignite-fired power plant of the capacity of 3 × 626 MW, which will supply 1,473 MW of power to Thailand. This transmission system project consists of the construction of new 500 kV transmission lines from Thai/Lao border (Nan Province) to 500/230/115 kV Nan Substation to be connected with 500 kV transmission line to the main system in Mae Moh 3 Substation, renovation of related transmission lines with a total length of approximately 1,192 circuit-kilometers, a new substation, and the installation of transformers of 1,150 MVA. The investment cost of this project is 21,160 million Baht. As of November 2013, the progress of project was 27.27 percent. The project is scheduled to be completed in December 2014.

6. Transmission System Development for Power Purchase from Nam Ngum 3 and Nam Theun 1 Hydropower Plant Project

This transmission system project is to accommodate the power purchase from Nam Ngum 3 and Nam Theun 1 and/or other potential projects in Lao PDR, such as Nam Ngiep 1 Hydropower Project and Xayaburi Hydropower Project. The project consists of the construction of new 500 kV transmission lines Nam Phong 2 – Chaiyaphum 2 - Tha Tako connected with the existing Ban Na Bong (Lao PDR) – Udon Thani 3 – Nam Phong 2 lines (currently operating at 230 kV) to be the 500 kV Ban Na Bong – Udon Thani 3 – Chaiyaphum 2 – Tha Tako line, the construction of the 230 kV Chaiyaphum 2 – Chaiyaphum line, with a total length of approximately 728 circuit-kilometers, a new substation, and the installation of transformers of 4,000 MVA. The investment cost of this project is 17,550 million Baht. As of November 2013, the progress of the project was 0.06 percent. The project was scheduled to be completed by March 2016 – February 2017.


7. Transmission System Development in the Area of Loei, Nong Bua Lam Phu, and Khon Kaen Provinces for Power Purchase from Lao PDR Project

This transmission system project is to receive imported electric power from the Xayaburi Hydroelectric Power Plant Project in Lao PDR which will supply power of 1,220 MW to Thailand. It is scheduled that all units will supply power commercially within October 2019. The project involves the construction of 500 kV double-circuit transmission lines from Thai/Lao border in Loei Province to the new Tha Li Substation (distance of approximately 5 kilometers) and from Tha Li Substation to the new Khon Kaen 4 Substation (distance of approximately 225 kilometers) totaling 460 circuit-kilometers of transmission lines (only in Thai territory). The project also includes two new substations and installation of transformer of 1,000 MVA. The investment cost of this project is 12,060 million Baht. The project was initially planned for completion in 2018.

8. Transmission System Development for Chana Power Plant Block 2 Project

This new transmission system project aims to serve 800 MW power from EGAT’s new Chana Power Plant Block 2 Project. The project comprises the construction of 230 kV Chana power plant – Chana Junction – Khlong Ngae lines, with a total distance of 90 circuit-kilometers, and the construction and expansion of two existing substations. The investment cost of this project is 1,290.50 million Baht. As of November 2013, the progress of this project was 39.87 percent. It was scheduled to be completed in March 2014.

9. Transmission System Expansion and Renovation Project Phase 1: Substation

This project involves the improvement/replacement of aged substation equipment and control systems at EGAT’s 15 substations and other miscellaneous transmission system expansion. The project aims to increase the availability, reliability, and security of transmission system with an investment cost of 3,815 million Baht. As of November 2013, the progress of the project was 1.34 percent. The project was scheduled for completion in February 2017.

10. New Transmission System Interconnection Project between Su-ngai Kolok Substation (EGAT) and Rantau Panjang Substation (TNB)

This new transmission system project helps strengthen the system’s security and reliability in the Narathiwat Province by increasing imported power from Malaysia and promote the cooperation between Malaysia and Thailand. The investment cost of the project is 535 million Baht. The construction will start after the Interconnection Agreement between EGAT and Tenaga Nasional Berhad (TNB) is achieved.

11. Main Transmission System Expansion Project for Power Purchase from SPP Cogeneration Power Plants, Based on Request for Proposal 2010

This project is the expansion of major transmission system to accommodate the increasing power purchase from SPP’s cogeneration power plants in line with the resolution of the National Energy Policy Council (NEPC) of November 25, 2010 to strengthen the stability of the power system and reduce the loss of power in supplying and purchasing.

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The project involves the construction of new 230 kV transmission lines between Ayutthaya 4 and Sikhio 2 Substation, renovation of related transmission lines with the distance of 482 circuit-kilometers, a new substation, the installation of transformers of 2,650 MVA, and the improvement of relevant transmission system. The investment cost of the project is 10,610 million Baht. As of November 2013, the progress of the project was 1.07 percent. The project will be completed in January 2017.

12. Transmission System Renovation and Expansion Project Phase 1: Transmission Line

This transmission system renovation and expansion project aims to reduce the power loss from the blackout caused by the old transmission line so as to increase the continuity and efficiency in power supply and to enhance the reliability of the power system and the performance index of the transmission system. It involves the replacement and upgrade of 15 transmission line routes and other miscellaneous transmission system expansion. The investment cost of the project is 9,850 million Baht. As of November 2013, the progress of this project was 0.12 percent. This project was planned for completion by February 2017.

13. Transmission System Development in the Area of Ubon Ratchathani, Yasothon, and Amnat Charoen Provinces for Power Purchase from Lao PDR Project

This project is intended to accommodate the power purchase from Xepian-Xenamnoy Hydropower Plan Project which has the generating capacity of 3×130 MW, and to receive more power from other potential projects from the Southern part of Lao PDR. The project consists of the construction of new 500 kV transmission lines from Thai/Lao Border at Ubon Ratchathani Province to the new Ubon Ratchathani 3 Substation with the distance of 90 kilometers, initially energized at 230 kV, and the improvement of other transmission lines (in Thai territory only) with a total of 440 circuit-kilometers. The project also includes the construction of a new substation and the installation of transformers of 400 MVA. The investment cost of the project is 7,300 million Baht. The project was approved by the Cabinet on March 19, 2013 and expected to be completed in 2018.

14. Transmission System Renovation and Expansion Project Phase 2

The Transmission System Renovation and Expansion Project Phase 2, a successive scheme of Phase 1 involves the renovation and expansion of the existing 19 substations and 11 transmission lines and other miscellaneous work related to the transmission system. The investment cost of the project is 21,900 million Baht. The project was approved by the Cabinet on January 15, 2013 and was expected to be completed by 2015-2017.


15. Transmission System Improvement Project in Eastern Region for System Security Enhancement

This transmission system project aims to improve the system security in the Eastern part of Thailand to continuously serve the growing electricity demand and also receive the electric power from the new power plants. The project consists of the construction of the transmission lines totaling 358 circuit-kilometers, two new substations, and the installation of additional transformers of 4,000 MVA. The investment cost of the project is 12,000 million Baht. The project was approved by the Cabinet on April 23, 2013 and expected to be completed by 2017 and 2019.

16. Bulk Power Supply for the Greater Bangkok Area Phase 3 (BSB3)

Being a successive project of BSB2, BSB3 comprises several subprojects to respond to the increasing demand for electricity in the Greater Bangkok area, to maintain the stability of the power system and the continuity of the power supply according to the standard, and to cope with the malfunction problem of the western natural gas pipelines as well as providing the security of the power system of the country as a whole. The project comprises the construction of 27 circuit-kilometer transmission lines, two new substations, the installation of transformers of 4,200 MVA, and the voltage control equipment of 288.0 MVAr. The investment cost of this project is 12,100 million Baht. The project was approved by Cabinet on October 15, 2013 and scheduled to be completed initially in 2018.

Transmission System Projects in an Approval Process

1. Transmission System Expansion Project No. 12 (TS.12)

Being a successive scheme of the project TS.11, the project TS.12 covers the transmission system expansion and reinforcement projects in all provincial areas countrywide to cope with the increasing demand for electricity and to support the expansion plan of the new delivery points of the Provincial Electricity Authority (PEA). The project TS.12 consists of the construction of the transmission lines of the distance of approximately 2,791.7 circuit-kilometers, 7 new substations, the installation of transformers of 9,300 MVA, and the voltage control equipment of 2,322 MVAr. The investment cost of the project is 60,000 million Baht. The project is expected to be approved by Cabinet in 2014 and scheduled to be completed in 2020.

2. Transmission System Improvement Project in Western and Southern Regions to Enhance System Security

The project involves the construction of the 500 kV transmission lines and the renovation of 230 kV transmission systems to cope with the increasing power demand in the Southern part of Thailand in the long run and to increase the capability of the transmission system from the West/Central of Thailand to the South in order to promote the growth of business, industry, and tourism sectors of southern Thailand, including remedy in the power outage in the South. The investment cost of the project is 63,200 million Baht. This project is expected to be approved by the Cabinet in 2014 and scheduled to be completed in two phases: 2019 and 2022.

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Research and Development

In 2013, EGAT research and development roadmap was completed. To cope with the mission and responsibilities of EGAT, the work of related units was classified into five major groups with the timeframe in line with the technological progress and the support of appropriate EGAT’s budget in research and development as well as the social research for the purpose of community development around EGAT’s power plants.

The research and development roadmap of EGAT, a master plan in research and development, is beneficial sustainably to EGAT as it can be used in setting a direction for the future research and development work to meet the demand of all units and to cope with the technological changes.

Examples of EGAT research and development roadmap in nuclear power plant are as follows:


Thechartshowingintegratedreclamationofcoolingblowdown

EGAT has funded 25 research projects of both inside and outside research offices and also of educational institutes. Since 2006, a total of 183 projects amounting to 1,199.02 million Baht have been funded.

Moreover, EGAT has signed a Memorandum of Understanding with the Agricultural Research Institute to promote the research and development in using the by-product from power generation to enhance agricultural value and technology of energy crop, as well as continuously increasing the competency of the researchers together with the development of useful knowledge for the country.

Examples of the 18 completed EGAT-funded projects in 2013 were as follows:

1. Study on Integrated Reclamation of Cooling Blowdown

The study provides EGAT with an integrated reclamation of cooling blowdown for the thermal and combined cycle power plants which is technically and economically appropriate. It can reduce the use of water from natural water resources and thus the drain of wastewater to the environment without a negative impact on the ecological system of the public water resource.

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2. Design and Development of Water Free Vortex Micro Hydropower Plant

The research revealed that the electricity generated by the water free vortex system was environmental friendly and did not damage the aquatic animals. Being a low-cycle turbine, the aquatic animals which may come with the flow of water can safely escape from the turbine. Moreover, the rotation of water can also increase oxygen to the water resource.

Waterfreevortex

Turbineanditsoperationaltest

Waterfreevortexmicrohydropowerplantwithitswaterlevelof0.7-0.9metersandcapacityof1kW.


3. Development of Robotic System for Welding

The research revealed that the designed robotic system for welding could weld the critical part of the power plant precisely and efficiently. The robotic system can control the precision of the welding constantly throughout the work, with speediness and consistent quality, reducing the rework problem.

4. Relationship of Air Deck Length to Ground Vibration of Mae Moh Mine

The research revealed that the method could reduce the vibration in the explosion of Mae Moh Mine and produce lignite more rapidly while reducing the use of energy and maintenance cost of the machine. As the explosion can destroy the ground structure having the soil hardness, the deterioration of the machine, energy use, and the cost of explosives can be minimized.

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5. Development of Smart Grid Roadmap for Electricity Generating Authority of Thailand

From the research, a roadmap with a clearly stated vision, mission, and target is available for EGAT for its smart grid development. The roadmap also provides a direction for the preparation for the readiness of the personnel, the knowledge, and related technology. It is useful in preparing the action plan according to the timeframe and in monitoring the progress of each activity in each project.

Integrationofpowergridandinformationinfrastructures

power development and future plan · power development and future plan the current official...

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