Skip to main content

Ormat’s 35MW Ijen Geothermal Plant Goes Live: A Game-Changer for Indonesia’s Renewable Energy Future

Ormat’s Ijen Geothermal Power Plant: A Bold Step Toward Indonesia’s Renewable Energy Goals  

In a significant move toward expanding Indonesia’s geothermal capacity, Ormat Technologies Inc. (NYSE: ORA) has commenced commercial operations for the 35MW Ijen Geothermal Power Plant in East Java. This milestone not only strengthens Ormat’s global footprint but also aligns with Indonesia’s ambitious target of adding 7.2GW of geothermal capacity by 2035.  

Powering Indonesia’s Future with Geothermal Energy  

The Ijen Geothermal Facility, jointly developed with PT Medco Power Indonesia, will ultimately reach a total capacity of 110MW under a 30-year power purchase agreement (PPA). Currently, the plant is supplying 35MW of clean, baseload electricity to the Java grid, a crucial step in diversifying Indonesia’s energy mix.  

This project showcases Ormat Energy Converter (OEC) technology, which is known for efficiently harnessing geothermal resources across varying temperatures. With Ormat holding a 49% stake in the facility through PT Medco Cahaya Geothermal (MCG), the project highlights a strong international partnership driving sustainable energy development.  

 Strengthening Ormat’s Global Presence  

Doron Blachar, CEO of Ormat Technologies, emphasized the company’s commitment to geothermal expansion:  

“The launch of the Ijen facility is a key step in our strategy to consistently and accretively grow our leading global geothermal energy portfolio and expand our presence in Indonesia.”  

Ormat, with over five decades of experience, has established itself as a leader in geothermal and recovered energy generation (REG). The company currently boasts a global energy portfolio of 1,537MW, spanning key markets such as the U.S., Kenya, Guatemala, Indonesia, Honduras, and Guadeloupe.  

With its deep expertise, Ormat is not only pushing the boundaries of geothermal development but is also expanding into energy storage and solar PV technologies, reinforcing its role in the clean energy transition.  

The Bigger Picture: Indonesia’s Geothermal Potential  

Indonesia holds one of the largest untapped geothermal reserves in the world, estimated at 29GW. However, only a fraction of this potential has been developed. Projects like the Ijen Geothermal Facility play a crucial role in bridging the gap, providing a stable, renewable energy source while supporting the country’s net-zero ambitions.  

The Indonesian government’s geothermal-friendly policies, coupled with partnerships between international and local players, are setting the stage for rapid geothermal expansion. As Ormat and Medco Power continue their collaboration, the Ijen project is just the beginning of a much larger transformation in Indonesia’s energy landscape.  


Final Thoughts  

Ormat’s successful COD at Ijen is a testament to the growing role of geothermal energy in the global energy transition. By harnessing Indonesia’s volcanic riches, Ormat is not just lighting up homes but also driving economic growth, job creation, and carbon reduction.  

With the world looking for cleaner and more sustainable energy solutions, projects like Ijen reaffirm geothermal power as a key player in the renewable revolution. Could this be a stepping stone to an even larger geothermal boom across Southeast Asia? Only time will tell, but one thing is certain geothermal energy is heating up the future.

Source:Ormat

Connect with us:LinkedInX

Comments

Popular Posts

Eavor’s Geretsried Closed-Loop Geothermal Plant Now Powers the Grid

Eavor Technologies Achieves Historic Milestone: World’s First Commercial-Scale Closed-Loop Geothermal System Now Delivering Power in Geretsried, Germany Published: December 2025 By:  Robert Buluma The Day Geothermal Changed Forever On a crisp Bavarian morning in late 2025, a quiet revolution in clean energy officially went live.   Eavor Technologies Inc ., the Calgary-based pioneer of closed-loop geothermal technology, announced that its flagship commercial project in Geretsried, Germany has begun delivering power to the grid becoming the world’s first utility-scale multilateral closed-loop geothermal system to achieve commercial operation. For anyone who has followed the geothermal sector for the last decade, this is nothing short of seismic (pun intended). What Makes Eavor’s Closed-Loop System Truly Disruptive? Traditional geothermal plants rely on naturally occurring hot water reservoirs or enhanced geothermal systems (EGS) that require hydraulic fracturing and massiv...

Amsterdam Strikes Geothermal Gold: Hot, Thick, Permeable Reservoir Confirmed

Breakthrough Beneath the Beach: Amsterdam Region Hits Geothermal Paydirt at Strandeiland By: Robert Buluma The Netherlands just took a giant leap toward fossil-free heating. On the artificial island of Strandeiland (part of Amsterdam’s fast-growing IJburg district), the SCAN exploration well has officially confirmed what the geothermal community has been hoping for: a thick, hot, and , most importantly permeable reservoir in the Slochteren Formation. Key numbers that matter:   Reservoir thickness: 152 meters   Bottom-hole temperature: 66 °C   Permeability: confirmed via successful production and injection tests   That’s not screaming-hot by Icelandic standards, but for direct-use district heating in one of Europe’s densest urban areas, 66 °C is more than enough to supply thousands of homes with clean, baseload heat – forever. Why This Well Changes Everything for the Netherlands The Dutch government launched the SCAN program (Seismic Campaign Nethe...

Exclusive Interview: An In-Depth Look at Exergy’s Game-Changing Gemini Turbine

Exclusive interview with Exergy : discover the new Gemini dual-flow radial outflow turbine, the first single-unit ORC solution for 30–60 MW geothermal projects, offering up to 30 % lower costs and 99 % availability. By:  Robert Buluma .   An interview with  Luca Pozzoni -  Deputy CEO | Group CFO - Exergy International and the Exergy Team 1. Can you walk us through the key design innovations in your new Gemini turbine and how it differs from previous models? The major innovation of the Gemini turbine lies in the dual-flow configuration: unlike conventional radial outflow turbines which are equipped with a single bladed overhung rotor disk, the Gemini features a double-side bladed rotor disk mounted in a between-bearing configuration. This enables the efficient processing of significantly larger volumes of fluid, leading to higher power output having basically two radial outflow turbines in a single machine with enhanced operational stability and simplified mainte...

Zanskar’s Big Blind: First Blind Geothermal Discovery in 30 Years

Big Blind: The Geothermal Discovery That Changes Everything By: Robert Buluma Utah startup  Zanskar Geothermal quietly dropped one of the most important announcements in American energy in decades. They discovered and confirmed “Big Blind” ,the first completely blind, commercial-grade geothermal system found in the United States in over thirty years. Let that sink in. No hot springs.   No fumaroles.   No steaming ground.   No prior wells.   Zero surface expression whatsoever. Just desert, sagebrush, and – 7,000 feet below,  a reservoir hot enough and permeable enough to support gigawatt-scale power production. This isn’t incremental progress. This is a paradigm breaker. Why “Blind” Discoveries Matter So Much For the last 40 years, geothermal development in the U.S. has been geographically handcuffed. You could only build plants where nature advertised the resource on the surface – think Yellowstone, The Geysers, or Imperial Valley. Ever...

Karlsruhe’s Geothermal Collapse: A Costly Blow to Germany’s Energy Transition

Karlsruhe’s Geothermal Collapse: A Costly Blow to Germany’s Energy Transition By:  Robert Buluma In the heart of Baden-Württemberg, a project that once symbolized ambition, innovation, and the promise of clean geothermal heat has now collapsed quietly. What was meant to become one of Germany’s most transformative regional heating networks has instead turned into a warning sign for Europe’s energy transition. The dissolution of the regional heat association in the Karlsruhe district,made up of ten municipalities,marks a serious setback not only for Germany but for the broader global geothermal movement. This is more than a failed project. It is a lesson in communication, financing, political courage, and the true cost of clean energy. A Vision That Should Have Succeeded The plan was compelling: Harness the deep geothermal power beneath Graben-Neudorf,home to Germany’s hottest geothermal well to deliver CO₂-neutral district heating to communities from Bretten to Bruchsal, Forst, and ...

Hot Nest Norway: Geothermal Luxury Carved Inside a Mountain

Hot Nest Norway: The World’s Most Extraordinary Geothermal Spa Resort is Taking Shape Inside a Mountain By:  Robert Buluma Deep in the dramatic Gudbrandsdalen valley in Otta, Norway, something truly groundbreaking (literally) is happening. A former slate quarry is being transformed into Hot Nest Norway – a year-round luxury destination carved directly into the bedrock of the mountain, powered entirely by deep geothermal energy. This isn’t just another spa. It’s a visionary fusion of raw Norwegian nature, cutting-edge renewable energy, and jaw-dropping architecture that looks like it was designed by a collaboration between Tolkien and Tesla. What is Hot Nest Norway? Imagine walking into a mountain and discovering 3,000 m² of luxurious spaces:   20 uniquely designed hotel rooms   700 m² of geothermal-heated indoor and outdoor pools (yes, outdoor pools in the Norwegian winter – steaming at +38 °C while snow falls around you)   A fine-dining restaurant cel...

🔥 Krafla Magma Testbed: Drilling Into the Earth’s Fiery Heart

Krafla Magma Testbed (KMT) : Humanity’s Bold Leap Into the Heart of the Earth Interview  from Bjorn Gudmundsson the C.E.O-Krafla Magma Testbed and Team By:  Robert Buluma In 2009, deep beneath Iceland’s iconic Krafla volcano, a drilling team made history. During the IDDP-1 project, their drill bit pierced into magma molten rock at just two kilometers below the surface. What began as an accident became a scientific revelation. For the first time, humans had safely accessed magma. This “Eureka” moment gave birth to an idea so daring it almost sounds like science fiction: the creation of a permanent observatory where magma could be directly studied. That idea became the  Krafla Magma Testbed (KMT) a visionary international project that promises to rewrite the future of geothermal science, volcanic monitoring, and sustainable energy. Why Krafla? The Perfect Laboratory Beneath Our Feet Krafla’s  geology is unique. It offers a known shallow magma body, decades of research...

Cornell PhD: Earth & Atmospheric Sciences – Fall 2026 Opportunities

Exciting PhD Opportunities in Earth and Atmospheric Sciences at Cornell University (Fall 2026 Admission) By: Robert Buluma If you’re a prospective graduate student interested in cutting-edge research in climate science, glaciology, physical oceanography, geospace physics, volcanology, or cryosphere processes, Cornell University’s Department of Earth and Atmospheric Sciences (EAS) just announced a fantastic set of fully funded PhD positions starting in Fall 2026. The department posted a detailed call on LinkedIn (shared widely on X/Twitter by Prof. Matt Pritchard) listing specific projects and the faculty members actively recruiting students right now. These are not generic openings; each professor has described their project and what kind of student they are looking for. Here are the current opportunities (as of early December 2025): 1. Climate Dynamics   Professor: Flavio Lehner (flavio.lehner@cornell.edu)   Focus: Climate variability with emphasis on how sea-surfa...

Alberta Bets $35 Million on the Future of Drilling: From Smarter Oil Wells to Geothermal and Critical Minerals Breakthroughs

Alberta launches $35-million challenge to reinvent drilling for the next 50 years   By  Robert Buluma | December 3, 2025   EDMONTON – The days of drilling straight down and hoping for the best are long gone. Today, operators in Western Canada routinely steer multi-kilometre horizontal wells with pinpoint accuracy from a single surface location. Tomorrow’s wells, however, could be guided entirely by artificial intelligence, powered by low-emission rigs, and used to unlock everything from geothermal heat to critical minerals and permanent CO₂ storage. That future just got a $35-million boost. Emissions Reduction Alberta (ERA ) officially opened applications this week for the Drilling Technology Challenge, a funding program designed to bridge the “valley of death” that too often kills promising subsurface innovations before they ever reach the field. “Many great ideas never make it past the prototype stage because the cost and risk of real-world testing are simply...

Potsdam Goes Deep: How an All-Electric Drilling Rig Is Turning the City’s Heating Completely Fossil-Free

Revolutionizing Urban Heating: UGS GmbH's Pioneering Geothermal Project in Potsdam By: Robert Buluma In the heart of Germany’s energy transition, a quiet but powerful revolution is taking place in Potsdam. UGS GmbH, a German subsidiary of the French energy storage specialist Geostock, has begun a landmark geothermal project that could redefine how entire cities stay warm in winter ,without burning a single drop of oil or cubic meter of gas. The project, awarded by the local utility Energie und Wasser Potsdam GmbH (EWP), focuses on the former site of the HKW Süd combined heat and power plant in southern Potsdam. The goal is ambitious: replace the aging gas-fired plant with deep geothermal energy and other renewables, eventually supplying tens of thousands of households with completely CO₂-free district heating. At the center of this transformation stands a piece of machinery that looks like something from the future: UGS’s fully modernized, all-electric drilling rig “Rig 110”. After...