Regulations & Safety Standards for Installing Solar Power Systems in Thailand|Engineer’s Guide
Installing solar panels in Thailand requires compliance with several laws and technical standards, including the Energy Industry Act, grid connection regulations, EIA (Environmental Impact Assessment), and TIS (Thai Industrial Standards) for equipment. Understanding these requirements helps reduce risks and maximize return on investment.
Thailand’s Renewable Energy Promotion Policy
Thailand aims to increase the share of renewable energy under the AEDP 2037 plan.
Solar energy continues to receive strong support, particularly for self-consumption models.
Investment models such as Power Purchase Agreements (PPA) and Third Party Ownership (TPO) allow installations without full upfront investment.
Laws and Permits to Know Before Installing Solar
Energy Industry Act:
Projects over 1 MW require an operating license.
Selling electricity to the grid requires a Very Small Power Producer (VSPP) license.
Building Control Act:
Construction permits must be obtained from local authorities.
Structural integrity must be certified by a licensed engineer.
Grid Connection Agreement:
Agreements must be made with PEA, MEA, or EGAT.
System design must include anti-islanding, voltage control, and prevent reverse current flow.
EIA Requirement:
Projects of 10 MW or more must conduct an Environmental Impact Assessment.
Technical and Safety Standards in Thailand
International Standards:
EC 61730 for safety, IEC 61215 for performance.
Thai Standards:
TIS 2902-2560 for solar cell modules.
Equipment Requirements:
Inverters and protective devices must be certified by relevant authorities.
Equipment must pass safety and efficiency testing.
Safety Design Considerations:
Must include grounding, surge protection, and anti-islanding systems.
Rooftop systems must withstand storms and be designed to match actual structural conditions.
Must consider local risks such as wind load, earthquakes, and flooding.
Simplified Process for Small-Scale Projects (Under 1 MW)
Since 2021:
Permitting process has been streamlined.
Applications can be submitted electronically.
Suitable for factories, SMEs, and government buildings.
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ITC ENEX (THAILAND) CO., LTD. is a Thailand-based company providing sustainable solutions in the energy sector. Leveraging the extensive technology and experience of its parent company, Japan's ENEX G ...