Technology showcase · High-temperature heat pumps
Propellane
A high-temperature industrial heat pump with thermal storage.
Active member since April 2025
Understand the technology
Key fact Up to 300°C
01 — Understand
Propellane technology, in three points
Propellane develops high-temperature heat-pump systems that electrify industrial heat above 100°C without increasing operating costs compared with gas. Its solutions combine gas/electricity flexibility, thermal-energy storage and waste-heat recovery, enabling manufacturers to reduce CO₂ emissions while protecting their business model.
01 The solution
A high-temperature industrial heat pump with thermal storage.
02 Technology principle
The heat pump raises the temperature to as much as 300°C while integrated storage retains surplus energy and releases it when required.
03 Applications
- Food processing
- Chemicals
- Paper
- Textiles
Founded in Paris in 2022, Propellane is a deeptech start-up designing and marketing medium- and high-temperature industrial heat pumps up to 300°C. The pumps are coupled to an innovative thermal-storage system and are designed to operate without a cost premium over fossil gas.
Very-high-temperature industrial heat pumps
At the heart of Propellane’s technology is an industrial heat pump capable of delivering heat at up to 300°C, combined with thermal storage. Built around a new type of compressor, the system stores excess heat produced outside peak-demand periods and returns it when needed, ensuring continuous and flexible supply.
The plug-and-play module is intended to decarbonise applications currently served by gas-fired furnaces and boilers. It integrates directly into existing installations, simplifies maintenance and targets no additional operating cost. Propellane states that the units can divide process CO₂ and NOₓ emissions by five or six while maintaining high energy efficiency.
The company aims to make industrial-heat electrification competitive and accessible across food processing, chemicals, paper and textiles, contributing to carbon-neutral industry.
