Market Overview
Thailand's solar energy market is a key component of the Asia Pacific renewable energy sector, with installed capacity expected to reach 6.97 GW by 2030. The market generated $0.75 billion in revenue in 2026 and is projected to grow steadily through 2031, supported by national energy policies and declining solar technology costs.
- •Thailand's solar installed capacity is forecast to grow from 3.78 GW in 2025 to 6.97 GW by 2030.
- •The market revenue is expected to rise from $0.7 billion in 2022 to $2.7 billion by 2030.
- •Solar energy accounts for an increasing share of Thailand's total electricity generation, aiming to meet national renewable targets.
Growth Drivers
Government policies, including feed-in tariffs and net metering programs, are accelerating solar adoption across residential, commercial, and industrial sectors. Additionally, rising electricity prices and corporate sustainability commitments are pushing businesses to invest in on-site solar systems.
- •Thailand's Alternative Energy Development Plan (AEDP) targets 30% renewable energy in total power generation by 2037.
- •Net metering allows households and businesses to sell excess solar power back to the grid, improving ROI.
- •Corporate demand for clean energy is surging, especially among manufacturing and logistics firms seeking ESG compliance.
Segmentation and Regional Analysis
The market is segmented into utility-scale, commercial & industrial (C&I), and residential solar installations, with C&I leading growth due to favorable economics. Central and Eastern Thailand, including Bangkok and nearby industrial zones, dominate installations due to high energy demand and infrastructure access.
- •Commercial & industrial solar accounted for over 50% of new installations in 2025, driven by factory and warehouse rooftops.
- •Rooftop solar systems in Bangkok and Eastern Economic Corridor (EEC) provinces are growing fastest due to high electricity consumption.
- •Utility-scale projects are expanding in the Northeast, where land is abundant and grid infrastructure is being upgraded.
Trends and Outlook
What are the recent trends and outlook?
Battery storage integration and hybrid solar-diesel systems are emerging as key trends to enhance grid stability and reduce diesel dependency in remote areas. The outlook remains strong through 2031, with projected CAGR of 7.2%, supported by regulatory tailwinds and falling equipment prices.
- •Battery storage adoption is accelerating, especially in C&I segments, to ensure power continuity during grid outages.
- •Solar-plus-storage projects are being piloted in island communities and industrial estates to replace diesel generators.
- •Thailand is expected to become a regional solar hub, with increasing exports of solar equipment and technical expertise to neighboring countries.
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Connect to an analyst →Market size and forecast are Claight Analysis, informed by public research and industry data. Historical years before 2026 and all forecast years are Claight estimates at the stated CAGR. Retrieved 2026.