EMA launches feasibility study to assess whether next-generation geothermal can aid net-zero drive.

Singapore is moving to test whether heat beneath its soil can meaningfully power a cleaner future, commissioning a full feasibility study into next-generation geothermal systems as it seeks to decarbonize a gas-heavy energy mix.

EMA Calls For Comprehensive Geothermal Study
On April 28, the Energy Market Authority (EMA) announced it will issue a Request for Proposal for a comprehensive study on the feasibility of deploying geothermal energy systems in Singapore. The work will examine technical, environmental and commercial viability, with the appointed consultant also asked to identify further research areas and propose policy frameworks. The move comes as Singapore evaluates options such as hydrogen and carbon capture to decarbonize its carbon-intensive energy sector and cut emissions from power generation, which accounts for about 40 per cent of national emissions.

From Volcanic Fields To Next-Generation Systems
Traditional geothermal power taps naturally high temperatures, aquifers and permeable rock in geologically active regions such as volcanic zones, conditions Singapore does not possess. However, EMA noted that recent global advances in geothermal technology have opened new possibilities to harness subsurface heat for electricity, heating and cooling even in less obvious locations. The feasibility study will focus on “next-generation” systems that can potentially access deeper or less conventional reservoirs, assessing whether Singapore’s geology and density can support stable, scalable projects.

Building On New Data From Underground Hot Spots
The study builds on a nationwide non-invasive geophysical survey commissioned by EMA in 2024 to map areas with geothermal potential. Research teams have already identified promising underground temperatures: in March 2023, scientists from Nanyang Technological University and Tumcreate found 70°C heat at a depth of 1.12km in Admiralty, and in July 2025 they reported a second high-temperature zone under Sembawang. Pulau Tekong’s Unum region, home to a natural hot spring, is another known hot spot. Together, the survey and the new study are intended to give the Government a holistic view of where realistic geothermal opportunities may lie.

Timelines, Proposals And Uncertain Economics
EMA expects to appoint a consultant in 2026, with the study’s duration dependent on the proposed scope and complexity. Interested parties can submit proposals by 4 pm on June 29. A 2022 EMA-commissioned report suggested emerging technologies including nuclear and geothermal could together supply around 10 per cent of Singapore’s energy needs by 2050. Yet Minister-in-charge of Energy and Science and Technology Tan See Leng has stressed that geothermal remains at a “very nascent” stage. Experts say key questions include whether underground heat reservoirs can deliver stable, continuous output and whether such projects can be made economically competitive in a small, urbanised country.

Role In Singapore’s Net-Zero Energy Mix
Singapore currently relies on natural gas for about 95 per cent of its electricity, leaving its energy security and emissions profile heavily tied to a fossil fuel. As it pursues a net-zero target for 2050, authorities see a future mix that could include imported renewables, low-carbon hydrogen, carbon capture and, potentially, small nuclear and geothermal contributions. EMA said the new feasibility study, together with ongoing surveys, will provide a robust basis to decide on “next steps in the pursuit of geothermal energy systems in Singapore.” For Indonesians and Singaporeans, the outcome will help clarify how much Southeast Asia’s dense, low-lying cities can realistically expect from the earth’s heat as they seek more resilient and cleaner power systems.

Singapore’s decision to rigorously test its geothermal potential signals a willingness to explore every credible tool in the push toward net-zero, even technologies once considered unlikely in its geology. For Indonesians, whose vast volcanic regions already host geothermal assets, and for Singaporeans, who rely on imported fuels and power, the study’s findings will shape regional thinking on how advanced drilling, better data and careful policy can turn underground heat into a modest but strategic part of the future energy mix.

Sources: Straits Times (2026) , CNA (2026)

Keywords: Geothermal Feasibility Study, EMA Request For Proposal, NTU Tumcreate Research, Admiralty Hot Spot, Sembawang High Temperatures, Singapore Energy Transition