Technology and R&D

Servotech Power Systems, with the support of the German Development Agency GIZ, has installed ten portable solar rooftop systems at the Swaminarayan Akshardham temple complex in the Gandhinagar district of Gujarat. 

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.

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.

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.

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

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.

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.

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.

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.

Germany’s Ostermeier H2ydrogen Solutions has developed an electrolyzer that works with tap water, with bottles to store hydrogen and a fuel cell or a Wankel engine to produce electricity. The system has a capacity ranging from 1kW to 100 kW, which corresponds to hydrogen production of 0.2-20 Nm3/h.