Public engineering firm profile
Rancho Cordova, CA
CES offers the world's lowest cost products for carbon-free combustion.
Clean Energy Systems, Inc. (CES) is a Rancho Cordova, California practice developing and commercializing zero-emission oxy-combustion energy systems. Building on rocket engine technology proven in the US Space Program, CES designs high-pressure oxyfuel combustion systems that cleanly combust a wide range of fuels with complete CO2 capture, zero SOx/NOx emissions, and significant net production of clean water. The commercial products of CES are utilized for clean, firm power generation and industrial decarbonization. It is an ISO 9001:2015 certified organization.
Proprietary high-pressure oxy-combustion systems derived from rocket engine principles to cleanly combust a wide range of fuels with zero SOx/NOx emissions and complete CO2 capture.
Clean, firm power generation solutions designed to eliminate traditional exhaust stacks and deliver dispatchable, zero-emission energy.
Clean combustion and steam generation systems that enable energy-intensive industries to reduce emissions while producing clean water and captured CO2.
2025 | PETRONAS / MISC Berhad / Aker Solutions | Power Generation
Front-End Engineering and Design (FEED) for the Zero Emission Power Station (ZEUS) demo project, leveraging high-pressure oxyfuel-based thermal technology with integrated CO2 capture and repurposing to generate dispatchable power from high-CO2 natural gas streams.
Chief Executive Officer
Mark McGough is the Chief Executive Officer of Clean Energy Systems, appointed in May 2025. He has over 30 years of experience building high-growth energy technology companies, with an established track record of innovation, international commercialization, and shareholder value creation.
Senior Vice President
Vice President of Business Development
Rebecca Hollis serves as the Vice President of Business Development and represents the organization as an industry expert on oxy-combustion technologies.
Chief Engineer
Director of Engineering
Director of Manufacturing
Director of Administration & Corporate Secretary
presentation | Rebecca Hollis | 2026
3035 Prospect Park Dr, Suite 120
Rancho Cordova, CA 95670-6071