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...

United Downs: Britain’s First Deep Geothermal Power Plant Edges Closer to the Finish Line After High-Stakes Pump Swap at 5.2 km Cornwall, UK – November 2025 By:  Robert Buluma Five kilometres beneath the rolling hills of Cornwall, in one of the deepest onshore wells ever drilled on British soil, a quiet but pivotal drama has just played out. After months of frustration, the failed downhole pump that threatened to derail the United Downs deep geothermal project – the UK’s first attempt to generate electricity from hot granite – has been pulled to surface. In its place, a new high-temperature Electrical Submersible Pump (ESP) supplied by SLB (formerly Schlumberger) is being readied for deployment 1,400 metres below the rig floor, inside a 5,275-metre production well that still holds the record as the deepest onshore borehole in the United Kingdom. The man at the centre of the operation, Ryan Law, Founder and CEO of Geothermal Engineering Ltd (GEL ), has been unusually candid on Linke...

Revolutionizing Geothermal Energy: Exergy Partners with Baseload Power Iceland to Transform Kopsvatn  By: Robert Buluma Image: Baseload Iceland,C.E.O Marta Ros Karlsdottir and Exergy's Luca Pozzoni shake hands upon signing of the LOI , Image source Exergy on LinkedIn In a groundbreaking development for geothermal energy, Exergy has signed a Letter of Intent (LOI) with Baseload Power Iceland to supply two Organic Rankine Cycle (ORC) units for the Kopsvatn geothermal power plant in Flúðir, Iceland. This partnership signifies a monumental leap in the utilization of small-scale binary systems that combine heat and power, paving the way for a global revolution in sustainable energy production.    A Milestone in Small-Scale Geothermal Innovation   The Kopsvatn geothermal power plant project embodies innovation at its finest. By integrating Exergy’s state-of-the-art ORC technology with Baseload Power Iceland’s strategic vision, this collaboration underscores the i...

Pioneering Energy Innovation: Exergy and PT PLN Indonesia Forge a Groundbreaking Partnership By: Robert Buluma In a world increasingly driven by the urgency of climate action, Exergy and PT PLN Indonesia have embarked on a visionary partnership that promises to redefine energy efficiency in the region. This collaboration, centered on the innovative use of waste heat recovery (WHR) technology, is not just another step in the evolution of sustainable energy—it’s a leap. Imagine harnessing the heat typically lost in power generation and converting it into something truly valuable: electricity. This is precisely what Exergy's state-of-the-art Organic Rankine Cycle (ORC) systems are designed to do. By capturing waste heat from gas turbines and engines, these systems can transform what would have been wasted energy into a powerful resource, reducing the need for fossil fuels and cutting down on harmful emissions. But this partnership is about more than just technology—it's about the ...

Exergy  and  Rentco Ignite a Geothermal Revolution in Olkaria: A New Era for Clean Energy in Africa By: Robert Buluma In a groundbreaking move set to redefine Kenya's geothermal landscape,  Exergy and  Rentco have inked a cooperation agreement to turbocharge the Olkaria Geothermal Field with an additional 67 MWe capacity. This ambitious project promises not just incremental gains, but a seismic shift in the region's energy dynamics, signaling a bold new chapter in Africa's clean energy saga. Exergy , renowned for its cutting-edge technology and robust portfolio boasting 500 MW capacity, will supply 8 Organic Rankine Cycle (ORC) power plants, contributing approximately 30 MWe to the project. These ORC plants are part of Rentco 's geothermal wellhead projects in Olkaria, designed to harness both flash and ORC systems, optimizing energy extraction from geothermal resources. The strategic deployment of Exergy’s highly efficient Radial Outflow Turbine (ROT) technology ...

United Kingdom's First Geothermal Power Plant Set to Revolutionize Energy Sector By: Robert Buluma Image: Exergy ORC Turbine To Be Used At athe United Downs Site by Gel at Cornwal The United Kingdom is on the cusp of a significant milestone in its renewable energy journey with the imminent launch of its first geothermal power plant. This groundbreaking project, managed by Geothermal Engineering Limited (GEL) under the visionary leadership of Ryan Law, promises to deliver sustainable baseload power for electricity and heating while ambitiously seeking to harness lithium from geothermal brine. A Game-Changer in Renewable Energy Located in Cornwall, this pioneering geothermal power plant is set to transform the UK's energy landscape. The plant, which has been in development for a Great time, recently reached crucial milestones that bring it closer to full operation. Central to this progress was the installation of an Organic Rankine Cycle (ORC) turbine from Exergy, a company renow...

Driving Renewable Energy: Exergy's Third Repeat Order with EDC in the Philippines In a significant stride towards sustainable energy solutions, Exergy International and Energy Development Corporation (EDC) have joined forces once again for a groundbreaking geothermal project in the Philippines. The third repeat order marks a pivotal moment in the partnership's commitment to advancing renewable energy in the region. Situated in Bago City, Negros Occidental, the project entails the installation of a 5.6 MWe binary system designed to harness the immense potential of geothermal resources. By tapping into the high enthalpy steam and brine from the Bago field, this innovative power plant is set to generate clean and reliable electricity, contributing to the country's efforts in decarbonization and sustainable development. Exergy's cutting-edge technology lies at the heart of this initiative, with its highly efficient Radial Outflow turbine and water-cooled condensing system p...