Develops and manufactures compact thermal heat storage units and phase change materials (PCM) for heating systems and heating networks.
Cowa Thermal Solutions AG
Root D4 (Technopark Luzern, CH)New on Amplifa
About Cowa Thermal Solutions
Cowa Thermal Solutions AG was founded in 2019 as a spin-off of the Lucerne University of Applied Sciences and develops and produces compact thermal energy storage units based on phase change materials (PCM). The patented storage concept uses non-toxic, recyclable salt hydrates that absorb large amounts of energy during melting and release it again upon solidification; this achieves a storage capacity of up to 75 kWh/m³, storing the same amount of energy in up to five times less space than conventional water storage tanks. The product range includes the cubic Cowa COMPACT Cell as a buffer storage tank, domestic hot water storage tank and combi storage tank for heat pump and photovoltaic systems, as well as customized storage solutions for OEM partners. In addition to series production, the company offers engineering services from analysis and conception through prototyping to market launch, plus its own material research laboratories in Root and in cooperation with EPFL. Customers include manufacturers in the heating and sanitary industry, building services companies and energy utilities, including EWL Energie Wasser Luzern. Headquarters is the Technopark Luzern in Root D4 (Switzerland).
- Site
- CH-6039 Root D4
- Processes
- Development and production of salt hydrate-based phase change materials (PCM), Manufacture of compact thermal heat storage units (buffer storage, domestic hot water storage,, Engineering of customized heat storage solutions (analysis & conception, development &, Series production of heat storage units for OEM partners, Testing and evaluation of prototypes and PCM materials (performance tests, optimization), Engineering of customized heat storage solutions (OEM), Development and production of phase change materials (PCM, salt hydrates), Prototyping and series production
- Materials
- Salt hydrate-based phase change material, Salt hydrates, recyclable and non-toxic, PCM temperature levels 48 & 58
- Certificates
- Innosuisse Certification (2023), TÜV Certificate No. 2302-7181 (COMPACT Cell DHW), ISO 9001
- Founded
- 2019
- Industries
- Building services engineering, Energy utilities (local and district heating networks), OEM / manufacturers of heating and sanitary technology, Residential buildings, Hotels and hospitality, Office and commercial buildings
- 01
Analysis & Conception
- 02
Development of the PCM material in own laboratory
- 03
Prototyping & Performance Testing
- 04
Validation & Certification
- 05
Series Production
- 06
System Integration & Market Launch with Sales Support
PCM Materials & Technology
Salt hydrate-based phase change material
Salt hydrates with phase change store latent heat at up to 75 kWh/m³ and are recyclable, non-toxic and long-term stable over more than 10'000 cycles.
PCM temperature levels 48 & 58
Materials at different temperature levels for buffer storage tanks, domestic hot water and combi storage tanks.
Locations
Root D4
CHHeadquarters, material research laboratory, engineering and sales
- Part weight / size
- up to 1400 × 600 × 340 mm, 262 kg
- Lot size
- Prototype to series production
- Materials
- PCM salt hydrates
- PCM laboratory
- Performance testing of prototypes
Storage Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and production of salt hydrate-based phase change materials (PCM)Engineering | – | – | – | – | Salt hydrates (PCM) |
| Manufacture of compact thermal heat storage units (buffer storage, domestic hot water storage,Assembly | – | 1400 mm × 600 mm × 1400 mm | 262 kg | – | Salt hydrates (PCM) |
| Engineering of customized heat storage solutions (analysis & conception, development &Engineering | – | – | – | – | Salt hydrates (PCM) |
| Series production of heat storage units for OEM partnersAssembly | – | – | – | – | Salt hydrates (PCM) |
| Testing and evaluation of prototypes and PCM materials (performance tests, optimization)Testing | – | – | – | – | Salt hydrates (PCM) |
Additional services
Reference customers
Quality & Sustainability
Products are tested and optimized via performance tests of prototypes and PCM materials; long-term stability of more than 10'000 cycles has been demonstrated, and a TÜV certificate (No. 2302-7181) is available for the COMPACT Cell DHW.
| Evidence | Root D4 |
|---|---|
| Innosuisse Certification (2023) | |
| TÜV Certificate No. 2302-7181 (COMPACT Cell DHW) | |
| ISO 9001 |
History
- 2019
Founded as a spin-off of the Lucerne University of Applied Sciences by Remo Waser, Simon Maranda and Jörg Worlitschek
- 2020
Venture Kick winner
- 2021
Venture Finalist
- 2022
Commissioning of the first system using Cowa technology in Pany (GR)
- 2023
Market launch of the first product; Innosuisse Certification
- 2024
Winner Swiss Accelerator innovation project; winner ewl pilot projects
- 2025
Winner SET Award, decarb KICK Award (Belimo Climate Foundation), Finalist Charge Award, Nominee Green Business Award