Cambridge Spin-Out Barocal Lands $1M TERA-Award for Solid-State Cooling Technology

Cambridge University spin-out Barocal won the $1 million gold TERA-Award in July 2025 for its barocaloric cooling technology, which uses plastic crystal materials to deliver refrigeration through mechanical pressure rather than traditional gas-based systems. The technology, developed by materials physics professor Xavier Moya and his team, promises 2-3 times the energy efficiency of conventional refrigerants while eliminating fluorinated gases that contribute to global warming.

The Physics Behind the Breakthrough

Barocal's approach centers on barocaloric materials—specifically plastic crystals that undergo phase transitions when subjected to mechanical pressure. Professor Moya, who has studied plastic crystal properties for 15 years at Cambridge, identified that these materials can absorb and release significant amounts of thermal energy during pressure-induced phase changes, creating a solid-state cooling effect without the need for vapor compression cycles.

The plastic crystals are flexible, widely available, low cost, and nontoxic—addressing multiple pain points in current refrigeration systems. Unlike hydrofluorocarbon (HFC) refrigerants that require careful handling and pose environmental risks when released, the solid-state materials remain contained within the cooling system throughout their operational lifecycle.

Energy Efficiency and Environmental Impact

Breakthrough Energy estimates barocaloric devices have the potential to reduce emissions by up to 75 percent compared with traditional units. This reduction stems from two primary factors: the elimination of high-global-warming-potential refrigerants and the improved thermodynamic efficiency of the pressure-based cooling cycle.

The timing aligns with growing regulatory pressure on traditional refrigerants. The European Union's F-Gas Regulation has been phasing down HFC availability, while the Kigali Amendment to the Montreal Protocol mandates global reductions in HFC production and consumption. Solid-state alternatives like Barocal's technology offer compliance pathways that avoid the performance compromises often associated with natural refrigerants.

Commercial Recognition and Market Validation

Barocal's trajectory through competitive funding programs signals serious commercial interest. The company was the sole European finalist in the Global Cooling Prize in 2019, a competition designed to identify breakthrough cooling technologies for high-temperature, high-humidity climates. The recent TERA-Award represents further validation from investors focused on climate technology scalability.

The broader context here reveals familiar patterns from other solid-state technology transitions. We have seen this dynamic before, when solid-state drives began displacing mechanical hard drives in the late 2000s—initial skepticism about cost and performance gave way to rapid adoption once manufacturing scaled and the technology's inherent advantages became clear in real-world deployments.

Technical Challenges and Implementation Timeline

Converting laboratory demonstrations into commercial cooling systems requires solving integration challenges around heat exchangers, pressure systems, and control mechanisms. Traditional vapor compression systems benefit from decades of engineering optimization and supply chain maturity. Barocaloric systems must achieve comparable cost structures while delivering the promised efficiency gains.

The pressure cycling mechanisms represent a particular engineering focus. Unlike the continuous operation of conventional compressors, barocaloric cooling requires precisely controlled pressure application and release across the plastic crystal materials. This demands new approaches to system design, component materials, and control algorithms.

Market Context and Adoption Pathways

Cooling and heating account for around 40% of global energy consumption, creating substantial market opportunities for efficiency improvements. The addressable market spans residential HVAC systems, commercial refrigeration, data center cooling, and industrial process cooling—each with distinct performance requirements and adoption timelines.

Data centers present an particularly attractive initial market. Operators already prioritize energy efficiency for operational cost reasons, possess technical expertise to evaluate new cooling approaches, and often have the capital budget to invest in higher-efficiency systems with longer payback periods. The controlled environment and predictable thermal loads also simplify the engineering challenges compared to variable residential applications.

Looking at what this means for technology adoption, early implementations will likely focus on applications where the environmental benefits justify any cost premium, before scaling drives down manufacturing costs for broader market penetration. This follows the established pattern for energy efficiency technologies across sectors.

Industry Positioning and Competition

Barocal enters a cooling technology landscape with multiple emerging approaches competing against entrenched vapor compression systems. Magnetic refrigeration, thermoelectric cooling, and other solid-state methods each target specific segments of the broader cooling market. The success of any alternative technology depends not only on thermodynamic performance but also on manufacturing scalability, maintenance requirements, and integration complexity.

The Cambridge pedigree and academic research foundation provide credibility, but commercial success requires executing the transition from laboratory prototypes to manufacturing-ready products. The TERA-Award funding provides capital for this development phase, though achieving price parity with conventional systems remains the critical milestone for mass market adoption.

Worth flagging: the cooling industry has historically been conservative in adopting new technologies due to reliability requirements and established supply chains. Even superior alternatives face lengthy adoption cycles as manufacturers, installers, and end users gain confidence in new approaches. Barocal's challenge lies not only in proving technical superiority but in building the ecosystem partnerships necessary for commercial deployment at scale.