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Fraunhofer Institute for Solar Energy Systems (ISE)

2026-07-31

Weekly Wrap-up: Enex’s Sustainability Report, Fenagy and SCM Frigo’s ‘Record Growth,’ Rivacold’s 1.6MW CO₂ Logistics Center and More

Two of the three Fenagy CO2 heat pumps installed at the Tietgensgade facility with compressor panels and vibration feet. Photo credit: Fenagy

2025-08-07

Ait-group Launches Indoor Residential R290 Heat Pumps with 150g Charge

Alpha Innotec’s propane-based WZSV 63 brine heat pump. Photo credit: Ait-group

2024-08-27

ATMO MAC Summit 2024 × TU Berlin to Highlight Innovations in Mobile Natural Refrigerant Technologies

The ATMO MAC Summit 2024 × TU Berlin will take place September 12–13.

2024-06-20

Fraunhofer ISE Develops Propane Heat Pump for Industrial Application With a Charge of 225g

Fraunhofer ISE has developed a propane heat pump with a refrigeration circuit requiring just 225g of charge.

2023-05-30

German Research Institute Looks into Low-Charge R290 Heat Pump Systems, Especially Indoors, for Multi-Family Housing

The Fraunhofer Institute for Solar Energy Systems is researching low-charge R290 heat pumps for a range of residential applications. (Source: Fraunhofer ISE)

2022-11-10

Fraunhofer Researchers Say Low-Charge Propane Heat Pump Sets Efficiency Record

In the search for the best propane heat pump, dozens of combinations of components have been tested by the Fraunhofer Institute for Solar Energy Systems.