Coupling ground-source heat pumps with heat storage, borehole heat exchangers
Scientists from China have developed a novel optimization method for medium-depth ground source heat pumps, using an improved chaos particle swarm optimization. They coupled it with either a heat storage tank or a shallow borehole heat exchanger and found that both system typologies increase the heat pump’s coefficient of performance.
The Hydrogen Stream: Zaha Hadid designs marina refueling stations
Zaha Hadid Architects has unveiled the world’s first green hydrogen refueling network for recreational boats at marinas in Italy, while a German-Czech consortium has announced the development of a drivable hydrogen motorcycle.
Long-duration storage market to hit $223 billion in 20 years, says IDTechEx
Alternatives to lithium-ion batteries will likely emerge in the years to come, according to a new report by IDTechEx.
Subsea pumped hydro for utility scale storage at deepwater
Researchers in Norway have investigated the technical potential of implementing subsea pumped hydro storage at water depth not exceeding 2,000 m. They also identified potential locations for these storage systems based on energy density.
Façade-integrated R290 split-type heat pump for domestic hot water
Researchers in Austria have developed a new heat pump system for residential applications that reportedly achieves a coefficient of performance ranging from 2.82 to and 3.11 at an outdoor air temperature of 10 C and 20 C, respectively. They also found the system was able to supply the comfort conditions at all tested outdoor temperatures.
The Hydrogen Stream: Airbus, Vattenfall to assess potential for airport hydrogen
A new study by ManpowerGroup and Cepsa suggests that green hydrogen and biofuels could create more than 1.7 million new green jobs in Europe by 2040, while Airbus, Vattenfall and other partners have agreed to assess the feasibility of hydrogen infrastructure at airports in Sweden and Norway.
Organic cathode for high-energy, fast-charging lithium-ion batteries
Massachusetts Institute of Technology (MIT) researchers have developed a new organic cathode material with an energy density higher than most cobalt-based cathodes. It can charge–discharge in as little as six minutes. Automaker Lamborghini has licensed the patent for the technology.
PV self-consumption rising as batteries cut grid imports by 94%, says Relectrify
Relectrify says battery energy storage in commercial settings in Australia can offer economic benefits. It has released data showing that a recently commissioned 120 kW ReVolve battery has reduced the customer’s import of energy from the grid by more than 94%.
Havells India unveils heat pump water heater
Havells India’s new 3.5 kW HP30 White Silver (300 L) system has a rated power input of 940 W. The manufacturer says it is ideal for large households.
SolaX Power releases new residential batteries
China’s SolaX Power has developed two lines of integrated energy storage systems that reportedly support up to 200% PV oversizing. Their rated output power ranges from 3 kW to 15 kW.
