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Technology

TBEA unveils new residential inverters

TBEA has developed new products with nominal power ratings of 10 kW to 25 kW and efficiencies of 98.5%.

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EV batteries alone could satisfy short-term grid storage demand

Low participation rates for vehicle-to-grid (V2G) tech of just 12% to 43% are needed to provide short-term grid storage demand throughout the world by as early as 2030, according to a group of Dutch and US researchers.

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Japanese oil giant opens PV-powered hydrogen pilot in Australia

Japan’s largest oil company, Eneos, has opened a green hydrogen demonstration plant in Brisbane, Australia. The project is relatively small, producing just 20 kilograms of green hydrogen per day, but Eneos Senior Vice President Yuichiro Fujiyama says the company will expand it in the “near future.”

LG unveils heat pump for water heating

LG has developed an air source heat pump with the capacity to heat 200 liters to 270 liters of domestic water. It uses R134a as a refrigerant and the pump has a coefficient of performance (COP) of up to 3.85.

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Only5mins! – Standards in agrivoltaics might limit innovation

Makoto Tajima, an agrivoltaics analyst for Japan’s Institute for Sustainable Energy Policies (ISEP), speaks to pv magazine about the growth of agricultural PV in Japan, as well as cost considerations and the pace of technological development.

Swiss manufacturer unveils mini batteries for balcony solar panels

Soleis AG has developed two storage systems with capacities of 1 KWh and 2 kWh.

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Australian startup develops systems to inject hydrogen into diesel engines

H2i Technology has developed a hydrogen enhancement kit that injects hydrogen into existing diesel engines to reduce diesel use. It is building 10 commercial-ready systems and plans to soon start field testing.

New lithium iron phosphate batteries for rooftop solar

V-Tac’s new 10 kWh lithium iron phosphate, wall-mounting battery system purportedly runs for more than 5,000 cycles.

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Zinc-bromine redox flow batteries with superpower density

Indian researchers have presented a new way to develop effective electrode materials for superpower redox flow battery (RFB) systems. Their flow cell with heat-treated nickel-rich platinum-nickel coating on the graphite felt delivered an impressive ever-best power density of around 1,550 mW cm−2.

Deploying solar, storage, heat pumps in the Arctic

US researchers have conducted case studies on the successful deployment of distributed renewables in the state of Alaska. In one study, two cities installed 223.5 kW solar PV arrays coupled with 351 kWh batteries and 250 kW inverters, in addition to cold climate heat pumps.

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