The Energy Market Authority (EMA) issued a Request for Proposal on Tuesday, April 28, to conduct a feasibility study on geothermal energy systems [1].

This move represents a critical step in Singapore's efforts to diversify its energy mix and explore renewable alternatives to reduce dependence on traditional power sources. Because the city-state has limited land area, exploring subsurface energy sources is a priority for achieving long-term sustainability goals.

According to the EMA, the study will assess the feasibility of using geothermal energy for generating electricity, heating, and cooling needs [2]. The authority is calling for proposals to conduct a study to assess the feasibility of using geothermal energy as a source of renewable energy in Singapore [3].

Prior to this request, the EMA commissioned a nationwide non-invasive geophysical survey in 2024 [4]. This survey provided initial data on the subsurface temperature gradients of the city-state.

Recent findings from these surveys have highlighted potential hotspots. Subsurface temperatures reached up to 122°C at a depth of 1.76 km in Sembawang [5]. Earlier findings recorded in Admiralty measured 70°C [6]. These temperature readings indicate a significant potential for geothermal energy extraction if the feasibility study confirms the viability of the same.

The EMA said the goal is to determine if geothermal energy can be a reliable source of power for the city-state. The process involves evaluating the technical requirements and the economic viability of deploying these systems in an urban environment.

By analyzing the data from the previous geophysical survey and new proposals, the EMA will determine the path forward for geothermal energy adoption in the city-state. The study will focus on the technical feasibility of drilling and the same for electricity generation and direct-use applications of heat.

“The EMA issued a Request for Proposal on Tuesday, April 28, to conduct a feasibility study on geothermal energy systems.”

Singapore's exploration of geothermal energy is a strategic move to enhance energy security. By targeting high-temperature zones in Sembawang and Sembawang, the city-state is attempting to leverage its unique geological profile to create a stable, baseload renewable energy source that, unlike solar power, is not dependent on weather conditions.