Technology

Trina Solar’s new Vertex series of bifacial modules have a conversion efficiency of up to 21% and can deliver more than 500W of power from the front surface.

Developers have until June 30 to lodge bids to develop plots of solar capacity across the national rail network paying no more than Rs2.71/kWh for the electricity generated under a 25-year contract.

The state-owned Central Electronics Limited seeks to empanel startups having the technology patent for waterless solar module cleaning system without any moving parts as its intends to manufacture such systems at its facilities.

Russian researchers have improved the efficiency of a thin-fim GaAs‐based solar cell by 0.9% by applying single‐walled carbon nanotubes as the topmost layer. The cell also showed a slight increase in the short circuit current density, from 16.9 to 17.9 mA/cm2.

French organic PV module manufacturer Armor said it began manufacturing free-form PV modules in early April. The new technology will allow the company’s ASCA PV film to be produced in a range of different shapes.

Researchers from Finland’s Lappeenranta University of Technology have assessed the economic advantages of a fully interconnected global network. They found that an international grid could contribute to a global LCOE of €52.50/MWh. The higher complexity of such a system, however, would only be marginally compensated by additional economic benefits.

Distributed generation with battery storage can revolutionize solar development in India in the shortest time period with minimal investment.

Scientists in the U.K. have developed a system which makes panels vibrate to provide cleaning. The academics have conceded, however, they are yet to calculate the ‘sweet spot’ of mechanical stress to be applied.

Indian scientists have developed a low-cost electrocatalyst based on iron, manganese and N-doped carbon derived from fish gills (Fe/Mn/N-FGC) that increased the performance of a homemade rechargeable zinc-air battery when used as the air cathode. The Fe/Mn/N-FGC cathode based battery achieved open-circuit voltage of 1.41 V and a large power density of 220 mW/cm2 at 260 mA/cm2 current density—compared to commercial platinum/carbon based battery’s 1.40 V and 158 mW/cm2—with almost stable charge-discharge voltage plateaus at high current density. 

A U.S. research group is now developing new inverters to protect solar installations from cyberattacks. The researchers also aim to create new cybersecurity standards. Professor Alan Mantooth, the group’s research coordinator, said that inverters can be shut down if they are hacked, or contribute to grid instability and result in the overcharging of batteries, while potentially creating problems that we still don’t know how to address.