COWI and Sinotech Team Up on Taiwan’s Super-Hot Geothermal Potential Taiwan’s geothermal story is moving from possibility to execution, and the COWI-Sinotech collaboration is a sign that the sector is entering a more serious phase of development. The partnership is focused on unlocking super-hot geothermal resources, which could improve project economics and expand the country’s clean-energy options. Introduction Geothermal has long been one of Taiwan’s most intriguing renewable resources because the island sits on active tectonic terrain with strong heat potential. What has held the sector back is not a lack of heat, but the difficulty of converting that heat into bankable projects at scale. The new collaboration between COWI and Sinotech points to a more technical, internationally connected approach to solving that problem. Why Taiwan Matters Taiwan has ambitious decarbonization goals, and geothermal fits neatly into the need for firm, low-carbon power. Unlike solar and wind, geother...
Kenya’s Climate Breakthrough: Harnessing Geothermal Power to Pull Carbon Out of the Air
🌋 Why Kenya Is Uniquely Positioned for Carbon Removal
Kenya is one of the world’s geothermal success stories. Unlike many nations that rely heavily on fossil fuels, Kenya generates a significant share of its electricity from geothermal resources, particularly along the Great Rift Valley. This region is rich in underground heat, volcanic rock formations, and clean baseload power.
These conditions make Kenya ideal for carbon removal for three major reasons:
1.Abundant renewable energy – Carbon capture technologies require large amounts of energy. In Kenya, geothermal power provides constant, low-carbon electricity and heat.
2. Suitable geology – Volcanic basalt formations naturally lock carbon dioxide into solid rock through mineralization.
3.Strategic location – Kenya sits at the crossroads of African innovation, climate finance, and global carbon markets.
Together, these factors give Kenya a rare advantage that few regions in the world can match.
🚀 A Kenyan Startup Taking on the Carbon Challenge
Founded in Nairobi in 2022, Octavia Carbon is Africa’s first startup dedicated to direct air capture (DAC). Its mission is bold but clear:
to remove carbon dioxide from the atmosphere using clean energy and permanently store it underground.
Rather than relying on fossil-fuel-powered capture plants, the company integrates its systems with geothermal energy dramatically lowering emissions and operational costs. This approach could make carbon removal cheaper, cleaner, and scalable in ways previously thought impossible.
In a world where most DAC facilities are located in Europe or North America, Octavia Carbon represents a shift in the global climate narrative one where Africa builds solutions for the planet, not just for itself.
⚙️ How Direct Air Capture Works
1. Pulling Carbon from Thin Air
Direct air capture machines use large fans to draw in ambient air. Inside the system, chemical filters selectively bind carbon dioxide while allowing other gases to pass through.
Once the filters are saturated, heat is applied to release concentrated CO₂.
2. Powered by Geothermal Energy
This heating step is normally energy-intensive one of the biggest barriers to DAC adoption. In Kenya, geothermal power changes everything.
By using geothermal electricity and waste heat, the system avoids fossil fuels entirely. Waste heat from geothermal plants energy that would otherwise be lost , is repurposed to regenerate filters, reducing electricity demand by more than 80%.
3. Permanent Storage Underground
After capture, the carbon dioxide is compressed and injected deep underground into basalt rock formations. There, it reacts with minerals and turns into solid carbonate rock , permanently locking carbon away for thousands of years.
This is not temporary storage. It is permanent carbon removal.
🛠️ Project Hummingbird: A First for the Global South
Octavia Carbon’s flagship initiative, Project Hummingbird, is the first direct air capture and geological storage project of its kind in the Global South.
Located near geothermal fields in Kenya’s Rift Valley, the project is designed as a proof-of-concept for large-scale deployment. Key features include:
Around 100 direct air capture units
Approximately 1,000 tonnes of CO₂ captured and stored annually in the initial phase
Majority of energy supplied by geothermal waste heat
Permanent storage through mineralization in volcanic rock
Beyond its technical success, Project Hummingbird also demonstrates a viable business model for carbon removal , selling verified carbon removal credits to organizations seeking high-integrity climate solutions.
💰 Carbon Removal as an Economic Opportunity
Carbon removal is no longer just an environmental idea it is a rapidly growing global market. Companies and governments aiming for net-zero targets increasingly require high-quality carbon removal credits to balance unavoidable emissions.
By positioning itself early, Kenya stands to benefit in several ways:
Export revenue from carbon removal credits
Job creation in engineering, geology, manufacturing, and data verification
Foreign investment into geothermal and climate infrastructure
Technology leadership in an emerging trillion-dollar climate sector
For Octavia Carbon, early carbon credit sales have already helped finance pilot projects and attract international investors — proving that climate action and commercial viability can go hand in hand.
🌍 Global Recognition and Momentum
The startup’s approach has attracted international attention, earning recognition in global climate innovation competitions and drawing interest from major climate investors.
This validation confirms something increasingly clear: Africa is not late to climate innovation it is early in defining its future role.
Kenya’s geothermal-powered carbon removal model is now being studied as a blueprint for other regions with similar geology and renewable energy resources.
🌱 Beyond Kenya: A Vision for Africa’s Carbon Future
The success of geothermal-powered DAC in Kenya opens the door to broader continental possibilities. East Africa, in particular, holds vast geothermal potential stretching across Ethiopia, Djibouti, Tanzania, and Rwanda.
Concepts such as a “Great Carbon Valley” envision the Rift Valley becoming a global hub for carbon removal , where clean energy, geology, and climate finance converge.
If realized, this could transform Africa from a climate-vulnerable continent into a climate-solution powerhouse.
⚠️ Challenges on the Road Ahead
Despite the promise, challenges remain:
🔧 Scaling Technology
Direct air capture is still expensive at early stages. Scaling from thousands to millions of tonnes per year will require infrastructure, supply chains, and long-term investment.
📊 Verification and Trust
Carbon removal must be measured, monitored, and verified with extreme rigor. Ensuring permanence and transparency is essential for market confidence.
🏛️ Policy and Financing
Supportive policy frameworks, carbon markets, and climate finance mechanisms will be critical to enabling rapid scale-up across Africa.
🌟 A Defining Moment for Kenya and the Climate
What is happening in Kenya today represents more than a startup success story. It signals a shift in global climate leadership.
By harnessing geothermal energy to remove carbon from the air, Kenya is demonstrating that:
Climate innovation does not belong to one region
Renewable energy can power the most advanced technologies
Africa can lead not follow in solving the climate crisis
As the world searches for scalable, permanent climate solutions, the answer may well rise from beneath Kenya’s volcanic soil.
From geothermal heat to solid rock, carbon is being pulled from the sky, and Kenya is showing the world how.
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