Heat Pumps

Italy-based Rhoss has developed a cascaded air-source heat pump that uses propane (R290) as the refrigerant. It can produce between 47.4 kW and 190.5 kW of heat and domestic hot water to a temperature of up to 75 C.

Trane has released a rooftop air-to-air heat pump that can produce between 14.5 kW and 37.4 kW of heat and between 16.5 kW and 38.4 kW of cooling. The new device can purportedly be adapted to cold-climate applications by adding complementary heating sources such as electric heaters or hot water coils.

South Korean researchers have developed a heat trading system including a ground-source heat pump, solar thermal collectors, a fuel-cell system, and two heat storage tanks for district heating at hours of peak solar production.

Gerard Reid, co-founder of corporate finance advisory Alexa Capital, considers whether the EU is up to the task of dealing with the twin threats of the energy crisis and the pull of a revitalized US clean power industry.

SolarPower Europe says in a new report that households in Germany, Spain, and Italy can more than triple their savings by pairing PV with heat pumps. It said this combination helped families to save between 62% and 84% on their annual energy bills in 2022.

Fraunhofer ISE has presented the results of retrofit heat pump installations in multi-family homes in Germany. One demonstrator featured rooftop solar PV and a multi-source heat pump developed in partnership with Viessmann. It uses air and geothermal as heat sources.

Researchers have looked at whether Germany can substitute more gas with renewables-powered heat pumps or renewable electricity to reduce load hours at gas-fired power plants. They argue that heat pumps are the fastest way to cut German gas consumption.

MAN Energy Solutions is building an industrial-scale heat pump that generates steam without using gas. It will produce steam to dry dairy ingredients at a milk farm in New Zealand.

McKinsey & Company says in a new report that payback periods for heat pumps could fall by up to 38% by 2030.

Viessmann has developed a heat pump for residential applications that can produce between 5.8 kW to 10.4 kW of heat. It has the capacity to heat 220 liters of domestic water, with a coefficient of performance (COP) of up to 4.8 for space heating and 3.14 for water heating.