The proposed technique is based on radiative cooling and consists of a glass coating made with a two-dimensional subwavelength nanostructured grating, which is imprinted in soda-lime glass and has enhanced mid-infrared emissivity, and a micro-structured grating. The temperature decrease provided by the nano-micro-grating coating was found to be approximately up to 5.8 degrees Celsius.
Scientists in China developed a new kesterite solar cell they say could be suitable for indoor or outdoor applications. The bifacial solar cell reached 9.3% frontside efficiency, and also achieved a 9.0% on the backside.
The Chinese module manufacturer said the 0.35% improvement in efficiency was obtained through material upgrades integrated into the cell process and fabrication. The result was confirmed by China’s National Institute of Metrology.
A Swiss start-up has created a containerised movable PV system that is designed to be easily relocated to allow the use of solar energy in locations where a fixed installation is not an option. The solution is based on a racking technology which can include two racks able to host up to 30 solar panels.
The 100% solar-powered boat will be tested in a 9,000 nautical mile expedition from Chile to Australia that is set to start in December. The vessel is equipped with an 11 kW PV system built with heterojunction modules provided by Russian manufacturer Hevel Solar.
The 50 kW version of the new inverter features an efficiency of 98.6% and a European efficiency of 98.1%. It can be deployed with a decentralised approach, next to the PV modules, or centralised, at the grid connection point.
In the proposed system, the optical element is placed symmetrically at the centre of the solar panel in order to increase the length of the effective light collection region. Each hologram is claimed to be able to separate the colors of sunlight and direct them to the solar cells within the solar panel.
The pilot project is combining hydrogen fuel cell generators with a combined capacity of 500 kW with a 570 kW solar array and 1.1 MWh of lithium-ion batteries. It is planned to come online in the spring of 2022.
The Q.Peak Duo XL-G10.3 panel is currently the largest and most powerful product manufactured by the South Korean module maker. It is based on 156 monocrystalline ‘Q.antum’ half cells and is the company’s first panel relying on M6 wafers.
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