Engineering Solutions for a Cleaner and more Efficient Future


Chex logo with a blue droplet, arrows, and a lightning bolt, and the word 'CHEX' below.

The Company

CHEX is a Chilean engineering company based in Valparaíso, Chile, focused on developing sustainable solutions that meet the industry’s highest standards. We combine advanced engineering, scientific research, and innovation to create technologies that address current and future challenges across the energy sector and other industries.

Founded in 2020 by PhD Christian Romero and Laurentzi de Sasia Rodríguez, CHEX brings together multidisciplinary expertise to transform innovative ideas into practical solutions. Through collaboration with researchers, engineers, and industry partners, we develop reliable and scalable technologies that contribute to a more efficient and sustainable future.


Our First Innovation: CHEX Energy Storage

CHEX Energy Storage (CHEX) is our award-winning, patented energy storage technology, designed to solve key challenges associated with renewable energy integration, including energy curtailment and the need for long-duration storage solutions.

By combining compressed gas, water, and hydraulic systems, CHEX ES efficiently stores and recovers energy in a sustainable and scalable way. The technology enables excess renewable energy to be stored and used when demand increases or generation decreases, reducing wasted energy and improving energy reliability.

With a highly scalable design, CHEX can be adapted for different applications, from renewable energy projects to large-scale grid storage. Its sustainable operation avoids the use of harmful chemicals and enables long-duration energy storage without generating chemical waste or direct CO₂ emissions.

Industrial water treatment system with a large red pressure tank, blue pipes, black filtration units, control panel, and cooling unit inside a white-walled facility.

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Chex and CCTVAL Team

Innovation & Recognition

CHEX combines scientific research, engineering expertise, and industrial innovation to develop sustainable technologies with global potential. By bringing together multidisciplinary knowledge and a strong commitment to technological advancement, we create solutions designed to address the challenges of the energy transition.

Our flagship technology, CHEX Energy Storage, is protected by patents in multiple countries, reflecting its originality and international relevance. The innovation behind CHEX ES has received national and international recognition, highlighting its contribution to the development of cleaner, more efficient, and reliable energy systems.