Mission Statement

Our mission is simple:

 

To make high-performance cooling cheaper, cleaner, more responsive and resilient - everywhere it’s needed.

 

As cooling demand accelerates globally, we believe thermal energy storage will become as fundamental as electrical batteries are today. O-Hx is building the platform to lead that shift.

About Us

Organic Heat Exchangers Ltd (O-Hx) is a UK-based clean-energy engineering company focused on one of the fastest-growing challenges in the global energy system: cooling.

Our flagship solution, EnergiVault, is a high-performance cold thermal energy storage system designed to operate like a thermal battery. It stores cooling when energy is cheap or available and releases instant, high-power cooling exactly when demand peaks.

Unlike conventional ice banks or phase-change materials, EnergiVault is engineered for rapid discharge, operational resilience, and real-world industrial performance. It integrates seamlessly with existing chilled-water systems, helping operators reduce peak energy costs, relieve grid constraints, and strengthen cooling security.

O-Hx works with any centralised cooling infrastructure – data centres, pharma, food production, airports, and commercial buildings – delivering cooling certainty in an increasingly uncertain energy world.

Founders & Leadership

Built by Engineers. Scaled by Operators.

O-Hx is led by a team with deep experience spanning industrial engineering, energy systems, finance, and commercial scale-up.

The technical leadership brings decades of hands-on expertise in heat exchangers, refrigeration, and large-scale thermal systems, ensuring EnergiVault is engineered for reliability, maintainability, and deployment at scale—not just theory.

Commercial and financial leadership contribute strong backgrounds in fundraising, M&A, governance, and international growth, helping bridge the gap between proven engineering and global adoption.

Together, the team shares a simple philosophy:
Build robust thermal storage technology, prove it in demanding environments, and scale it responsibly with world-class partners.

Meet the Team

Bob Long

Bob Long

Executive Chairman

David Grundy

David Grundy

Finance and Commercial Director

Geoff Barker

Geoff Barker

Product Director

Awards 2024
Awards 2023
Awards 2016
Awards 2016
Awards 2017

Unlock Industrial Efficiency and Cost Savings

Discover how EnergiVault’s thermal battery can revolutionise your energy strategy.

We offer tailored solutions that drive significant cost savings.