Singapore is expected to see strong growth in solar power over the next decade as new data shows the country’s installed solar capacity could rise from about 1.57 GW in 2024 to 5.33 GW by 2035. This projection from GlobalData highlights steady annual additions of 300 MW to 400 MW starting in 2025. With this pace, Singapore’s total capacity could reach around 3.6 GW by 2030, which would exceed the country’s minimum target of 2 GW set under the Singapore Green Plan 2030. The analysis shows that solar will continue to play the leading role among domestic renewable energy sources, even as the nation maintains natural gas and regional electricity imports to ensure system stability.
In 2024, Singapore added around 400 MW of new solar PV capacity, reflecting its continued emphasis on expanding rooftop, floating, and utility-scale installations. Analysts say these segments will remain central to future growth because Singapore has limited land availability and must optimize solar deployment in urban and industrial settings. Natural gas still dominates Singapore’s power mix, accounting for nearly 94% to 95% of electricity generation. Despite this dependence, solar is positioned as a key component of the country’s long-term energy strategy.
Solar PV sits at the center of Singapore’s Four Switches framework, which guides the country’s transition toward cleaner energy. The other three switches include natural gas, regional power grids, and emerging low-carbon alternatives. Government programs such as SolarNova, the Simplified Credit Treatment scheme, and the Enhanced Central Intermediary Scheme have helped reduce barriers for distributed solar by making it easier for residential, commercial, and industrial users to adopt rooftop systems. These programs also enhance financial confidence for developers and investors, which supports a steady pipeline of new projects.
According to analysts, Singapore’s clean energy plan reflects the realities of a densely populated and highly import-dependent country. Solar deployment is being expanded within physical constraints using smart policies and urban-focused solutions. At the same time, investments in energy storage, modernization of gas-based generation, and new cross-border power connections are expected to strengthen reliability. The government is also working to diversify its electricity supply by importing up to 6 GW of low-carbon electricity from neighboring countries by 2035, which will complement domestic solar output.
Other research groups have highlighted the wider regional impact of Singapore’s energy plans. Rystad Energy has suggested that if proposed regional interconnection projects move forward, they could help unlock as much as 25 GW of renewable energy and storage developments across Southeast Asia, with Singapore serving as a central hub for these projects.

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