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Technology

Bluetti launches 350 W portable solar module

The new product relies on 23.4%-efficient solar cells and features a short-circuit current of 10.8 A. It can be folded into a briefcase and is claimed to be an ideal solution for camping and outdoor activities.

Solar inverter fault detection techniques at a glance

New research has categorized all existing fault detection and localization strategies for grid-connected PV inverters. The overview also provides a classification of various component failure modes and their potential causes in a tabular form.

Lightweight solar for agricultural water reservoirs

The Genap Energy Cover uses HyET Solar Powerfoil thin-film solar modules, rated at 12.0% efficiency, for agricultural water storage and reservoirs, with an initial focus on the greenhouse and horticulture markets in the Netherlands. Genap said a 12kWp test setup had a generation density of 60W/m2, rising to 120W/m2 within a year, with an eventual target of 165W/m2.

Pure solid state batteries from Switzerland

Swiss Clean Battery is set to start commercial production of its pure solid state batteries in Switzerland. The batteries are based on a protected electrolyte made of a solid ion conductor, which helps to maintain internal resistance and capacity. The fixed ion conductor is formed in the battery cell itself, similar to a multi-component adhesive.

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NTPC, Gujarat Gas to start green hydrogen blended PNG supply project

To decarbonize the cooking sector, India’s premier energy utility NTPC has partnered city gas distribution company Gujarat Gas Limited on a pilot project to supply green hydrogen-blended piped natural gas. 

Photovoltaic cell harvests energy day and night

Stanford researchers develop a device that harvests energy from the temperature difference between the PV cell and the air.

Bosch unveils hydrogen-compatible stationary fuel cell system

Bosch’s new solid oxide fuel cell prototype has an electrical efficiency of more than 60% and an overall efficiency above 85%. It also has a targeted power output of 10 kW and can produce up to 3 kW of thermal energy.

The long read: Avoiding PV performance killers

GIZ, Germany’s development agency, has partnered with India‘s Ministry of New and Renewable Energy to follow up on its successful “kW-to-kWh” study, which has become a quality benchmark for MNRE’s projects in India. PI Berlin acted as lead consultant on the project, and Asier Ukar, senior consultant and managing director of PI Berlin S.L., shares some of the key conclusions.

Offgrid Energy Labs unveils ZincGel battery technology for stationary and low-powered mobility applications

The IIT Kanpur-incubated startup has introduced ZincGel battery technology that offers energy efficiency at par with lithium-ion products but with twice the lifecycle and negligible operational cost, which can lead to significant savings for two-wheeler EV operators.

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Aluminum-nickel molten salt battery for seasonal renewables storage

US scientists have developed a battery that can retain 92% of its initial capacity over periods of 12 weeks, with a theoretical energy density of 260 W/hour per kg. It was built with an aluminum anode and a nickel cathode, immersed in molten-salt electrolyte.

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