World

Switzerland’s Smartvolt has developed a special mounting system that facilitates the quick deployment of small ground-mounted PV systems at the base of ​​wind turbines.

The PV module relies on Jinko’s TOPCon mono cell technology, for which a record efficiency of 24.9% was announced last week. TÜV Rheinland has confirmed the result.

The use of polymer electrolyte membrane fuel cells as backup power generation in solar microgrids could drive down costs and improve efficiency, according to an international group of researchers. They have proposed a new energy management system that could be ideal for hybrid solar-hydrogen microgrids in remote locations.

Scientists in Japan demonstrated a hard-carbon electrode that can greatly increase the capacity of a sodium-ion battery. With further work on the long-term performance, the discovery could make sodium-ion batteries better able to compete on energy density with their lithium-ion counterparts.

The result was confirmed by Germany’s Institute for Solar Energy Research (ISFH).

Researchers in Finland have demonstrated the technical feasibility of an off-grid residential PV system combined with short-term battery storage and seasonal hydrogen storage. The proposed model is applicable only to northern climates, as higher levels of solar radiation in southern locations would mean a reduced need for seasonal storage. It was tested in an existing single-family house in Finland with a 21 kW rooftop array and a ground source 6 kW heat pump.

Cell metallization is getting a makeover. Some ‘rocking’ research projects spearheaded by Fraunhofer ISE are now set to introduce new printing methods that could deliver more than a doubling of throughput. There are hurdles to overcome across various process steps and on a materials basis, but initial results appear encouraging.

The selected applicants are required to execute projects across categories like solar-powered cold storage, solar water pumps, solar-powered reverse-osmosis water systems and off-grid solar systems for primary health care centers on a turnkey basis. The work includes engineering, supply, erection, commissioning along with maintenance support for three years.

The current developer-EPC model has increasingly turned to focus on quality over a two-year horizon. This contrasts with long-term owners who are focused on quality over the lifetime of their projects (20 to 40 years). With long-term owners now buying projects in the pre-construction phase, the current model looks set for disruption. Olivier Crepon, managing director at Skyray Engineering, reviews the emerging model of project development and explains how it will impact developers, EPCs, and third-party services and ultimately lead to a stronger, more mature PV sector.

Available in four different products, the series features a conversion efficiency of 20-21.2%. Two of the panels are packaged in a sleek, all-black aesthetic.