TCS (Thermoelectric Conversion Systems Ltd.) pioneers high-performance, zero-emission thermoelectric heat pumps and cooling solutions, driving decarbonisation from its base near Glasgow.
What we do
TCS (Thermoelectric Conversion Systems Ltd.) designs and manufactures advanced solid-state thermoelectric heating and cooling systems to support the decarbonisation of buildings. Using industry-grade thermoelectric technology, we create compact, refrigerant-free heat pump solutions that deliver reliable thermal output with low noise and minimal maintenance. Our scalable systems are suitable for domestic, commercial, and industrial applications, with the Hummingbird unit representing our flagship heat pump offering.
What we can help you with
Conventional heating and cooling systems often rely on bulky compressors, refrigerant gases, and high electrical peak loads, which can restrict where and how they are deployed particularly in retrofit, space-constrained, or off-grid social housing settings. TCS systems provide an alternative route to low-emission thermal comfort without those constraints.
Our solution
TCS has developed the Hummingbird, a solid-state thermoelectric heat pump that delivers both heating and cooling from a single compact unit. With no moving parts and no refrigerants, it enables silent operation, high reliability, and simplified installation. The system can integrate with low-voltage DC power sources such as solar PV and battery storage, making it well suited to retrofit applications and low-carbon energy systems.
Benefits of working with us
Refrigerant-free thermal solutions: Eliminates the use of F-gases and complex mechanical components.
Compact and flexible: Designed for space-constrained and hard-to-retrofit buildings.
Low-noise, low-maintenance: Solid-state operation reduces wear, servicing, and disruption to residents.
Grid-friendly: Compatible with standard electrical supplies and renewable energy integration.
Case study
TCS is conducting field trials of its Hummingbird systems with multiple housing providers across a range of challenging building archetypes. Early deployments in flatted apartments, integrating rooftop PV and battery storage, have demonstrated meaningful reductions in heating costs and removal of fossil fuel heating, while requiring minimal on-site electrical upgrades.