Bringing the world together to kickstart a clean new industrial era
Company
Coolbrook – a team on a mission for industrial electrification
Electrifying the hottest steps of heavy industry
Coolbrook is a technology and engineering company electrifying the hottest and most polluting steps of heavy industry. Our patented RotoDynamic Technology brings together rocket science, turbomachinery and chemical engineering to replace fossil-fuel combustion with clean electricity – the RotoDynamic Heater™ (RDH) for industrial process heat and the RotoDynamic Reactor™ (RDR) for steam cracking.
Our first commercial RotoDynamic Heater™ is in delivery to Adani Cement’s Boyareddypalli plant in India. With our industrial, technology and academic partners, we aim to cut up to 2.4 Gt of CO₂ a year at full deployment – about 7% of global emissions.
Coolbrook in brief
- Founded: 2011, Helsinki, Finland
- Team: about 40 people
- Operations: Finland (headquarters), the Netherlands (pilot plant), the United Kingdom and India
- Products: RotoDynamic Heater™ (industrial process heat) · RotoDynamic Reactor™ (electric steam cracking)
- Pilot: MW-scale pilot plant at Brightlands Chemelot Campus since December 2022; more than 5,000 operating hours
- First commercial delivery: Adani Cement, India
- Sectors: cement, iron and steel, aluminum, petrochemicals and chemicals
- Selected recognition: BNEF Pioneers 2025, Global Cleantech 100 (2025, 2026), Reuters Events Global Energy Awards 2026
- Patents: 22 patent families
RotoDynamic Technology in Figures
2.4 Gt
CO2 reduction potential a year at full deployment
7%
Of global CO2 emissions
1,700 °C
RDH design temperature
Coolbrook management
Our team brings together expertise in rocket science, turbomachinery, chemical engineering and industrial delivery – with an experienced management team, a board with listed-company and industrial backgrounds, and academic partners at the universities of Cambridge, Oxford and Ghent.
History of Coolbrook and RotoDynamic Technology
Coolbrook’s technology began in the late 1990s, when a group of rocket engineers worked on a turbine-like device to generate high-temperature process heat for petrochemical production.
In 2011 an early prototype was introduced to Finnish entrepreneur Ilpo Kuokkanen and Harri Johannesdahl, later Coolbrook’s long-time CEO, and Coolbrook was founded to develop it further with the University of Oxford and University of Cambridge laboratories and Neste Engineering.
- 2011-2020: Modelling, CFD and patenting; first industrial partners in cement, petrochemicals, and steel sign up from 2020
- 2022: MW-scale pilot plant opens at Brightlands Chemelot Campus, Geleen
- 2023: First RDH test phase completed; first electric steam cracking with RDR
- 2025: Delivery agreement with Adani Cement for the first commercial RDH; natural gas heated up to 1,000 °C; plastic-waste pyrolysis oil cracked
