Technology

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.

July 6 is the last date to submit proposals for the ambitious ‘one sun, one world, one grid’ plan that aims at seamless sharing of renewable energy resources among countries for mutual benefits and global sustainability. The program has been taken up by the Ministry with assistance from the World Bank.

The prime minister again emphasized the need for India to develop a domestic solar manufacturing industry and also urged officials to get on with plans to make Ladakh carbon-neutral.

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.

A study by Germany’s Fraunhofer Institute for Solar Energy Systems has evaluated the feasibility of horticulture PV at the site of Paras in Akola district of Maharashtra, where the state utility Maharashtra State Power Generation Co. Ltd (Mahagenco) is considering to install a ground-mounted solar system on more than 100 hectare (ha) of arable land.

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.

German development agency GIZ has hired DNV GL to study control reserve requirements of India’s southern states. The study—part of the Indo-German Energy Programme—will help ensure efficient and cost-effective integration of large-scale renewable energy supplies in the region.

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.

All the JinkoSolar PV modules shipped to India during January to March period of 2020 are based on mono PERC technology, comprising full-cell and half-cell modules.

Researchers in Australia have conducted a ‘cradle to grave’ life cycle assessment (LCA) of the four most widely used PV technologies. The academics say that cadmium telluride solar modules have the lowest life cycle impact, followed by amorphous, multi and monocrystalline silicon products.