June 19, 2025

Thailand solar rooftop law: 5 Essential Changes for Simplified Installations

Thailand solar rooftop law sparks a revolution in simplified installations

Thailand is on the brink of a transformative shift in its energy landscape with the introduction of a new law aimed at simplifying the installation of solar rooftops. This legislative initiative, spearheaded by Energy Minister Pirapan Salirathavibhaga, is designed to streamline the installation process, reduce household electricity costs, and bolster the country’s commitment to renewable energy. The bill is currently in draft form and is expected to be submitted to the Cabinet for approval shortly.

Learn more about the bill’s impacts.

Cost-effective solutions under the Thailand solar rooftop law

The proposed bill will eliminate the requirement for permits to install solar rooftops, thereby significantly lowering the costs associated with installation and the sale of excess electricity back to the grid. This reform aims to incentivize more households and businesses to transition to solar energy, aligning with Thailand’s broader renewable energy goals.

Moreover, the bill is set to simplify the process of selling electricity generated from solar rooftops back to the grid. This will provide an easier pathway for households and businesses to recover their investments in solar energy systems, fostering a more widespread adoption of renewable energy solutions.

Expanding capacity through the Thailand solar rooftop law

As of 2023, Thailand boasts a total solar capacity of 4,238.5 megawatts (MW), with solar rooftops contributing 1,769.5 MW. The government’s ambitious plan targets an increase in this capacity by an additional 3,000 MW to 4,000 MW by 2037. Solar rooftops are anticipated to be pivotal in achieving these targets, as the simplified installation process is expected to encourage more widespread adoption.

The Energy Ministry has directed the Metropolitan Electricity Authority (MEA) and the Provincial Electricity Authority (PEA) to facilitate the integration of electricity generated from solar rooftops into the national grid. This initiative aims to ease the sale of surplus electricity, thereby attracting more investments in solar energy.

Economic benefits driven by the Thailand solar rooftop law

The government’s push for solar rooftop installations is poised to yield significant economic benefits. By reducing electricity costs for households, the initiative could increase disposable income, potentially boosting spending across various economic sectors. Additionally, the burgeoning solar energy sector is expected to create new job opportunities in installation, maintenance, and manufacturing.

This legislative move is part of Thailand’s long-term energy strategy, which seeks to enhance the share of renewable energy in the national energy mix. By 2037, the government aspires to meet a substantial portion of the country’s energy needs through renewables, including solar, wind, and biomass. Explore Thailand’s renewable energy strategies.

The anticipated Cabinet approval of this law will mark a significant milestone in Thailand’s journey towards sustainable energy. By making solar energy more accessible and affordable, the government aims to foster widespread adoption of solar rooftops, thereby enhancing the country’s energy security and environmental sustainability.


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