Thailand’s solar rooftop sector is poised for heightened competition as falling costs, an expanding array of suppliers, and regulatory support from the government converge to accelerate adoption across residential and commercial segments.
EnergyLIB, a solar energy solution provider, has launched a new solar system specifically designed for townhouses, while JJ-LAPP, the cable and connectivity solutions joint venture of diversified industrial conglomerate Jebsen and Jessen Group and LAPP Holding Asia, is partnering with Chinese solar panel manufacturer Deye to launch new products in Thailand.
Chatchai Wajakiet, General Manager of JJ-Lapp – a joint venture between Jebsen & Jessen and Lapp Holding Asia – noted that recent easing of installation regulations and the increasing affordability of solar technology are key drivers behind growing consumer interest.
“Entrepreneurs such as office and factory owners have traditionally led demand, but we expect to see increased adoption within the household sector in the coming years,” said Chatchai. “Lower prices for solar panels and energy storage systems are making clean energy more accessible.”
The shift in cost dynamics is significant. In 2010, photovoltaic (PV) panels capable of generating 1 megawatt (MW) of electricity cost around 150 million baht. Today, the same capacity can be installed for just 15 million baht, according to Prapunt Harnchai, a consultant at Deye Thailand.
Similarly, battery energy storage systems (BESS), which are essential for managing the intermittent nature of solar power, have seen substantial price reductions. A 5-kilowatt-hour BESS that previously cost 250,000 baht now retails for approximately 200,000 baht.
While the domestic market outlook remains robust, broader geopolitical developments may also reshape regional dynamics. Industry analysts have indicated that Chinese solar manufacturers may increase exports to Asian markets amid trade tensions with the United States. President Donald Trump has proposed significant tariffs on solar panel imports from Southeast Asia, following allegations that Chinese firms operating in Malaysia, Cambodia, Thailand, and Vietnam are selling products below production cost due to state subsidies.
A final decision from the US International Trade Commission on the proposed tariffs is expected in June.
As solar technology becomes more affordable and policy frameworks more supportive, Thailand’s solar rooftop market is expected to expand further, underpinned by growing demand from both commercial and residential sectors.
–Bangkok Post
