Quantum adjustments for 23.9%-efficient inverted perovskite solar cell
Scientists in Canada fabricated a perovskite solar cell based on an inverted structure that achieved 23.9% efficiency, and maintained 92% of its initial performance after 500 hours of accelerated aging tests. By carefully controlling the thickness of the perovskite layer, the group was also able to gain control of “quantum mechanics” properties such as the movement of electrons within the layer and the wavelengths of light absorbed.
Could ‘hot carrier’ solar cells break the theoretical efficiency limit?
Up to 50% of the energy absorbed by a solar cell is lost as heat. Scientists are now developing a third generation of “hot carrier” solar cells that take advantage of this heat, potentially breaking the Shockley-Queisser limit of silicon-based PV.
Radiative cooling-based solar cell with 50 mW/m2 of generation at night
Stanford University scientists have developed a solar cell with 24 hours of power generation via an embedded thermoelectric generator, which extracts power from the radiative cooler at night. Extra daytime power from excess heating comes from the cell itself.
Boviet Solar shifts focus to 600W modules, N-TOPCon, HJT cells
Boviet Solar has announced plans to rebrand its modules, while shifting its focus to new cell technologies.
Are you tracking or stowing? – A financial analysis of stow strategies
Current large format PV modules trackers already move into stow at lower wind speed thresholds, which means they can be in stow very often, defeating the purpose a tracker is designed for. Arctech’s solution to the problem: raising the wind speed threshold that triggers stow position. In this pv magazine Webinar, we will analyze the economic effects of this as well as review the methodology that Arctech has used to derive the energy yield for the different scenarios considered. DNV will provide feedback on how Arctech can refine its methodology in the future.
SEIA speaks about potential devastation of solar anti-circumvention probe
The Solar Energy Industries Association (SEIA) said that 90% of respondents to a recent survey about the US anti-circumvention investigation expect a severe or devastating impact on their businesses due to the ongoing probe.
Aluminum-nickel molten salt battery for seasonal renewables storage
US scientists have developed a battery that can retain 92% of its initial capacity over periods of 12 weeks, with a theoretical energy density of 260 W/hour per kg. It was built with an aluminum anode and a nickel cathode, immersed in molten-salt electrolyte.
UC Berkeley digs big hole for geothermal heat pump
The University of California, Berkeley, has replaced a cogeneration plant with a new geothermal system that is powered by renewable energy.
Enphase to produce micro-inverters in Romania
US energy specialist Enphase will produce micro-inverters at a Flextronics factory in Timisoara, Romania, from the first quarter of 2023.
Tesla falls from top of US residential solar installer rankings
In Wood Mackenzie’s solar installer Leaderboard, Freedom Forever overtakes Tesla in the top three spot for the first time.
