Increasing PVT-assisted heat pump efficiency with liquid overfeed design
Researchers in China developed a large-scale PV-thermal heat pump system using a liquid overfeed method that reportedly improves both thermal and electrical efficiency. Field tests showed up to a 4.81% boost in power generation and significantly reduced pressure losses compared to conventional systems.
Fraunhofer ISE spin-off launches heat pump information platform
Heat Pumps Watch will work to change consumer attitudes towards heat pump adoption by delivering evidence-based information on the technology aimed at professionals, policymakers and homeowners.
Fothermo debuts immersion heater for excess PV power
The German company said its new device features a DC input supporting up to 3 kW of photovoltaic power. The heating output can be continuously adjusted between 0 W and 1,000 W. Priced at €549 ($635) including VAT, the heating element is designed for hot water storage tanks with capacities of up to 500 L.
Aermec debuts modular heat pump for residential, commercial buildings
The Italian manufacturer said its new WWMG heat pump system has a coefficient of performance of up to 4.98 and an energy efficiency rating of 16.30 BTU/Wh.
Work underway on ‘river’ heat pump complex in Massachusetts
The U.S’ largest district energy provider has started building a 35 MW heat pump complex in Massachusetts that will replace a natural gas boiler. The system will harness heat from the Charles River to produce carbon-free steam.
Field trial shows third-party control of residential heat pumps can provide grid flexibility
UK researchers find that smart, centrally controlled air-source heat pumps could slash peak electricity demand. The technology not only keeps homes comfortable but also boosts grid flexibility and cuts emissions.
Four-year testing finds heat pumps run efficiently even in older homes
Researchers at Fraunhofer ISE have tested various types of heat pumps in existing buildings across Germany over four years, finding that the systems achieved seasonal performance factors between 2.6 and 5.4. The team also showed that PV-driven heat pumps can boost self-consumption rates, particularly when paired with battery storage.
GoodWe debuts PV-driven heat pump water heaters
The Chinese manufacturer said their new residential heat pump water heaters deliver a coefficient of performance of up to 4.2, with a heating capacity ranging from 4.5 kW to 5 kW. The units are available with water tanks in 200 L, 300 L, and 500 L sizes.
Mitsubishi presents new residential air-to-water heat pumps
Mitsubishi said that the two new products of its Hydrolution EZY series can produce domestic hot water up to 75 C when outdoor temperatures reach -25 C. The new systems have capacities of 6 kW and 7.1 kW.
World’s largest heat pump under development in Germany
The 162 MW project is being developed by German utility MVV Energie. The system will use water from the Rhine river as a heat source and is expected to generate heat with temperatures of up to 130 C.
