• Colombia approved the environmental viability of the exploratory phase of the Nereidas geothermal project in Caldas province.
• The project is led by Ecopetrol, Baker Hughes and utility CHEC, and could eventually generate 50 MW to 100 MW of renewable power.
• Geothermal could help Colombia reduce reliance on hydropower, which has supplied roughly two-thirds to 70% of its electricity in recent years.

Colombia Opens Door To Large-Scale Geothermal Exploration

Bogotá has cleared a key environmental step for Colombia’s first large-scale geothermal exploration project, giving state oil company Ecopetrol and its partners a pathway to test a new source of round-the-clock renewable power.

Colombia’s environment ministry said it approved the environmental viability of the exploratory phase of the Nereidas geothermal project. The initiative is led by Ecopetrol, Baker Hughes and utility CHEC, and is located in the Ruiz volcanic massif in Caldas province.

The decision does not authorize full commercial development. Instead, it allows the exploratory phase to proceed under a partial and conditional carve-out from a protected forest reserve area outside national parks.

The approval is limited to exploration work. It also comes with environmental safeguards, ecological restoration duties and water-management requirements. Those conditions will be closely watched in a country where biodiversity protection, community consultation and energy security often intersect.

Why Geothermal Matters For Colombia’s Power Mix

For Colombia, geothermal is not just another renewable option. It could solve a structural problem in the country’s power system.

Hydropower has supplied roughly two-thirds to 70% of Colombia’s electricity generation in recent years. That has helped keep the grid relatively low-carbon. However, it has also left the country exposed to rainfall volatility, drought risk and climate-linked changes in water availability.

Geothermal offers a different profile. Unlike solar and wind, it can generate steady power regardless of weather conditions. That makes it attractive for planners seeking clean baseload capacity without relying heavily on fossil backup.

If successful, Nereidas could eventually generate between 50 megawatts and 100 megawatts of renewable power. Ecopetrol and its partners said in 2023 that this would be enough to serve more than 250,000 families.

That scale would not transform Colombia’s grid on its own. But it could prove the commercial and technical case for a wider geothermal sector in the Andean country.

Ecopetrol’s Transition Strategy Gains A New Test Case

The project also gives Ecopetrol another route to diversify beyond oil and gas.

National oil companies are under growing pressure to show how they will remain relevant in lower-carbon energy systems. For Ecopetrol, geothermal offers a strategic overlap with existing expertise. Subsurface exploration, drilling, reservoir analysis and project execution are all core capabilities in the oil and gas sector.

Baker Hughes brings technology and engineering experience to the alliance, while CHEC adds utility-sector knowledge in Colombia’s electricity market. That mix could help reduce execution risk during exploration, although geothermal projects still face long development timelines and high upfront costs.

For investors, the key question is whether Colombia can turn early-stage exploration into bankable renewable infrastructure. Environmental approval is only one step. The project still needs technical validation, resource confirmation, financing clarity and a route to market.

RELATED ARTICLE: Colombia Unveils $40 Billion Climate Transition Plan to Replace Fossil Fuel Revenue

New Rules Set A Framework For The Sector

The ministry’s decision came alongside a broader regulatory move. Colombia also issued new environmental terms of reference for geothermal exploration and exploitation projects.

Those rules set technical, environmental and social requirements for developers. Draft updates had been published for consultation earlier this year, giving the government a clearer framework for future projects.

That matters for governance. Geothermal development often touches sensitive land, water and biodiversity issues. Clearer rules can help developers understand permitting expectations, while giving regulators a basis for oversight.

For companies, the new terms may also reduce uncertainty. A defined environmental framework can help improve project planning, support community engagement and clarify what lenders will need to see before financing later-stage development.

What Executives And Investors Should Watch

The Nereidas approval gives Colombia a practical test of whether geothermal can move from potential to production.

For executives, the project highlights a wider opportunity across emerging markets with volcanic geology and rising demand for reliable clean power. For investors, it shows how transition finance may increasingly target technologies that provide grid stability, not only low-cost intermittent generation.

For policymakers, the challenge will be balance. Colombia needs cleaner, firmer power sources as climate pressures test hydropower reliability. Yet it must also protect forests, water systems and communities near sensitive ecosystems.

If Nereidas advances successfully, Colombia could add a new pillar to its renewable strategy. More importantly, it could offer a regional model for using legacy energy expertise to build the next generation of clean baseload power.

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