Technology and R&D

The super-hydrophobic coating using functional nanoparticles repels dust deposition on the solar panels and cleans itself by the action of water on the modules. 

Researchers have simulated a cart-mounted solar pump which they say would mean farmers in off-grid areas would be able to irrigate fields by paying only for the solar electricity used.

Researchers in Kenya say the geomagnetic field could reduce solar panel conversion efficiency 0.21% between the equator and a 50-degree latitude. Their analysis showed the complex magnetic field can determine increases in module fill factor and falls in maximum power.

U.S. researchers have created a new model to assess the overlap between solar potential and underlying land use. The areas with the largest potential are the western United States, southern Africa, and the Middle East. The researchers concluded that croplands, grasslands, and wetlands are the top three land classes for PV projects linked to agricultural activities, while barren terrain, traditionally prioritized for solar PV system installation, ranked fifth.

Researchers from the Solar Energy Research Institute of Singapore have concluded that utility-scale PV projects relying on bifacial panels and single-axis trackers deliver the lowest levelized cost of energy in most of the world. They found that the combination of bifacial products with dual-axis trackers is still too expensive, despite the higher yield. The second-lowest LCOE is offered by monofacial single-axis tracker plants.

October 31 is the last date to submit proposals for developing economically viable energy storage solutions that can be integrated with appropriate renewable energy sources to provide an uninterrupted power supply for rural households and enterprises.

Scientists in Japan have proposed a new model to estimate cell voltages in solar modules by irradiating the cells with a weak modulated laser light. The method could be used to detect hot spots and other panel-degradation issues, such as potential induced degradation (PID) peeling, cracking, and poor contacts.

Madurai Kamaraj University scientists have used a pouch laminator to encapsulate a polycrystalline solar cell. The resulting device, the researchers claim, showed better UV photon absorption than solar cells treated with a polymer surface coating.

MIT scientists have suggested used electric vehicle batteries could offer a more viable business case than purpose-built systems for the storage of grid scale solar power in California. Such ‘second life’ EV batteries, may cost only 60% of their original purchase price to deploy and can be effectively aggregated for industrial scale storage even if they have declined to 80% of their original capacity.

Indian scientists have developed a hybrid production method combining metal mesh and a metal-oxide layer over a glass substrate which they say brings down production cost by 80% compared to the tin-doped, indium oxide-based technology currently in use.