energy

South Africa will need to invest at least $250bn to shift to a greener economic structure

Shifting South Africa's coal-heavy economy to a greener structure will require at least $250bn over the next 30 years, according to a report published by the World Economic Forum. It said about half of the total investment ($125 billion) would be needed to increase wind and solar projects as the country mothballed coal-fired plants that …

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Japan develops new compound that removes carbon dioxide from ambient air with 99% efficiency

Researchers at Tokyo State University have developed a new compound called isophorone diamine (IPDA) that can reportedly remove carbon dioxide from ambient air with 99 percent efficiency, at least twice as fast as existing systems. This process also happens much faster than other carbon capture technologies. The researchers behind the new study are now working …

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Tesla converges energy storage users to power virtual power plants

Tesla hosted a Virtual Power Plant (VPP) workshop for the Texas Electric Reliability Commission (ERCOT). Tesla designed a demonstration test that 64 Tesla Powerwall battery owners took to power the grid as a whole. The demonstration demonstrated that there were no technical obstacles for the owner to supply power to the Texas grid. The core …

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Centralized heat storage and household independent control under new energy mode

The increasing proportion of renewable energy in heating and domestic hot water is an important measure to save energy and reduce emissions in China and around the world. At present, there are many practical application form in the clean energy heating and domestic hot water, mainly solar energy, heat pump, air source, ground source, water), …

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New simulators accelerate the development of solar cells

To create a solar cell that can make the most of every inch of sunlight, researchers rely on computer modeling tools that allow researchers to assess the impact of subtle adjustments to parameters such as device structure, material use and thickness of different material layers on the final power output. Some solar cell simulators are …

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2022 cost-effective true wireless collar microphone selection guide: live, short video Vlog recording

Wireless lapel microphone, a type of wireless microphone, has become popular recently. It is a small, small and portable microphone, usually worn in the location of the user's clothing lapel. It can be freed from the cable, and the user can do whatever he or she wants without worrying about the sound. It is generally …

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Double-sided contact silicon solar cells achieve a conversion efficiency of 26.0%

Researchers at the Fraunhofer Institute for Solar Energy Systems in Germany achieved a record conversion efficiency of 26.0 percent for double-sided silicon solar cells. Designing the rear cell surface for full area charge carrier collection passivation contact is key to success. The recording unit is based on TOPCon technology (Tunnel oxide passivation contact). The technology, …

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22.84% low indium double-sided heterojunction solar cell

A joint Dutch and Chinese research team has developed a double-sided heterojunction photovoltaic cell. Using a thin transparent conductive oxide (TCO), the cell uses 67 percent less indium and achieves a conversion efficiency of more than 22 percent. Image credit: TU Delft The TCO used in the battery is based on indium oxide (III) oxide …

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