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HELIEX POWER Ltd is a Scotland based company founded in 2010. The technology was originally conceived in the City University, London when Ian Smith, professor of Applied Thermodynamics and Professor Nikola Stosic began working together on twin screw machines.  The technology of the Heliex Screw Expander is an innovative solution in that it is able to utilize saturated (steam title up to 75%) steam.  Today SON offers its clients the HP 145 and HP 204 with a range of applications and an energy savings that allow a payback within three years.


The Heliex GenSet harnesses saturated process steam and generates low cost electricity that can be used onsite or sold back to the grid.
With no disruption to your plant production, the system is easy to install, provides tailored outputs from 70 to 630 kW based on your specific requirements.
Industries from pharmaceuticals to farming, biomass to waste incineration, have all increased profitability and enhanced sustainability due to the installation of a Heliex GenSet.
The Heliex GenSet has three different applications: 

  • Fossil Fuels
  • Biomass
  • Waste Heat Recovery (WHR)

A complete range of industrial compressed air pressures and flow-rates can be generated from industrial saturated steam.
Any process that generates waste steam and requires compressed air will benefit from the Heliex AirComp.
Using the same technology as the original Heliex GenSet, this application generates high efficiency compressed air more economically than a traditional electrical generator by exploiting onsite process steam.
The Heliex AirComp is a unique air compressor. It combines the benefits of Heliex’s steam expander technology, with standard industrial air compressor technology, creating an efficient ‘plug and play,’ package.
Integrated alongside the existing steam pressure reduction valve, the Heliex AirComp reduces all or part of the available steam flow to drive a Heliex expander and generate compressed air.
With an output of instrument air between 7 and 10 Bar G, the Heliex AirComp is an economical way of generating compressed air.