Technology and R&D

Researchers at the Indian Institute of Technology Delhi have developed solar towers that can be moved from one place to another and can generate 20-30% more power while requiring only 50-60% space compared to conventional mounting setups.

Consisting of a two-dimensional (2D) array of rings and pillars, the structure can improve the short-circuit current of a thin-film crystalline solar cell by over 50%, its creators say. The subwavelength AR structures are robust to certain degrees of fabrication errors, they add.

In new studies led by researchers from the National Renewable Energy Laboratory, the US Department of Energy pursues an energy cost goal of $0.05 per kilowatt-hour.

Ashutosh Verma, the founder of solar appliance manufacturer Exalta India, says that the key to expanding the uptake of solar products in rural parts of India lies in improving access to finance.

Researchers in Italy are combining PV with latent heat thermal storage (LHTM) and other renewable energy sources to maximize clean energy consumption in buildings. The 47kW PV array and LHTM system work independently, but the scientists said that a heat pump could be used to link them.

Soluna’s new generator can be combined in a two-unit system to reach a capacity of 2.5kWh. It features built-in 120V(AC) output, continuous AC output power of 1,200W, and peak output of up to 2,400W.

Through a conventional coloring technique for crystalline solar modules, scientists in Germany were able to manufacture a colorized small perovskite solar module in white marble optic displays that maintains up to 88.5% of the efficiency it had before coloring. The device was built with five cells interconnected in series and has a total area of 9cm².

Project Nexus is a pilot project that aims to build solar panel canopies over a portion of Turlock Irrigation District’s existing canals to operate and research a how water-plus-energy can meet California’s needs for climate resiliency.

Quantum dots, a type of semiconductor based on tiny nanometer sized particles, are a cause for excitement in many disciplines thanks to their unique electronic properties. In solar cell technology, quantum dots fabricated from perovskites could have several advantages over more commonly researched “bulk” perovskite materials, and researchers are beginning to take note of these. A group of scientists in China evaluated recent progress in perovskite quantum dot solar cells, noting both strong potential and a long way to go for this early-stage technology.

JA Solar is expected to put another 3.5GW of cell capacity into operation by the end of June and Hong Kong-based IDG Energy Investment will venture into cell manufacturing by establishing a “foreign invested” project company.