Transmission System Construction and Renovation Projects

Important Transmission System Projects/Plans That Have Been Approved and are under Implementation

Project	Expected Year of Completion
Transmission System Renovation Plan for Power Purchase from SPP Firm Cogeneration with Contract Period Ending by 2019-2025 (TSFC)	2024*
Transmission System for Hydro-Floating Solar Hybrid Project of Ubol Ratana Dam (URS1)	2024*
Transmission System Renovation and Expansion Project, Phase 1: Substation (RSP1)	2025
Transmission System Renovation and Expansion Project, Phase 1: Transmission Line (RLP1)	2025
Main Transmission System Expansion Project for Power Purchase from SPP Cogeneration Power Plants Based on Request for Proposal 2010 (SPPC)	2025
Transmission System Development Project for Power Purchase from Independent Power Producers (IPPP)	2026
Transmission System Development for Power Purchase from Small Power Producers, Phase 1 (SPP1)	2026
Transmission System Renovation and Expansion Project, Phase 2 (RTS2)	2027
Transmission System Improvement Project in Upper Northern Region to Enhance System Security (TIPN)	2027
Transmission System Expansion Project, Phase 12 (TS12)	2027
Bulk Power Supply for the Greater Bangkok Area, Phase 3 (GBA3)	2028
Transmission System Improvement Project in Eastern Region to Enhance System Security (TIPE)	2028
Transmission System Improvement Project in the Western and Southern Regions to Enhance System Security (TIWS)	2028
Submarine Cable Development Project to Koh Samui District in Surat Thani Province to Enhance System Security (SPSS)	2029
Substation Improvement Plan for System Connection in Compliance with EGAT’s Connection Code (SICC)	2029
Transmission System Improvement Project in the Northeast, Lower North, and Central Region including Bangkok to Enhance System Security (TIEC)	2031
Transmission System Improvement Project in Lower Southern Region to Enhance System Security (TILS)	2032

Remark: Construction was completed in 2024.

Important Transmission System Projects/Plans to Be Proposed for Approval in the Future

Project	Expected Year of Completion
Transmission System for Floating Solar Projects of EGAT Dams	2027 onward
Transmission System for North Bangkok Power Plant (Additional) Project, Phase 1 (NBA1)	2027
Transmission System for South Bangkok Power Plant (Additional) Project (SBA1)	2028
Transmission System Improvement Project to Accommodate the Renewable Power Purchase (TIRP)	2028
Transmission System Development for Special Economic Zone Project, Phase 1 (SEZ1)	2028
Transmission System Development in the Area of Loei, Nong Bua Lam Phu, and Khon Kaen Provinces for Power Purchase from Lao PDR Projects, Phase 2 (LNK2)	2030
Transmission System Development in the Area of Nan, Phrae, and Uttaradit Provinces for Power Purchase from Lao PDR Projects (NPUP)	2031
Bulk Power Supply for the Greater Bangkok Area, Phase 4 (GBA4)	2031
Transmission System Renovation and Expansion Project, Phase 3 (RTS3)	2031
Transmission System Renovation and Expansion Project, Phase 4 (RTS4)	2031

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