ArtikBanana

joined 2 years ago
[–] ArtikBanana@lemmy.dbzer0.com 2 points 9 months ago

From what I remember, in Zoom the meeting's host needs to enable E2EE, it's not automatic, and it disables a lot of Zoom's features while also limiting the amount of participants.

[–] ArtikBanana@lemmy.dbzer0.com 6 points 9 months ago

I've seen them say their solar panels will provide more energy for the same amount of land at a lower cost.
But it doesn't seem like their prices are publicly available yet.

[–] ArtikBanana@lemmy.dbzer0.com 11 points 9 months ago* (last edited 9 months ago) (2 children)

I think it's still interesting as it shows the potential.

And Oxford PV recently had a commercial sale of a perovskite solar panel with a 25 year guarantee

By adapting the formulation and synthesis of the perovskite and the cell design and encapsulation optimization, Oxford PV succeeded in mitigating stability-related deficits and aims at providing future buyers of their modules with the industry-standard 25 year performance guarantee

[–] ArtikBanana@lemmy.dbzer0.com 4 points 9 months ago (3 children)

From the article, it looks like the focus is on the more relevant parts for hydrogen, the chemical and steel industries.
Those and long haul vehicles (planes and ships) seem like the places where hydrogen is more relevant / the only realistic option at the moment.

[–] ArtikBanana@lemmy.dbzer0.com 4 points 9 months ago (1 children)

Copying from a previous comment of mine:

https://doi.org/10.1039/D2SE00096B

By adapting the formulation and synthesis of the perovskite and the cell design and encapsulation optimization, Oxford PV succeeded in mitigating stability-related deficits and aims at providing future buyers of their modules with the industry-standard 25 year performance guarantee

[–] ArtikBanana@lemmy.dbzer0.com 9 points 10 months ago* (last edited 10 months ago)

The difference here is in the efficiency of the system.
And that this is an aquaponics system, which includes growing both fish and vegetables.

After more than two years of testing, Prof. Gross's system demonstrated 1.6 times higher plant areal productivity, 2.1 times lower water usage and 16% less energy consumption per kilogram of feed than conventional systems. His calculations suggest that upscaling to about one ton of fish will allow operation of the system with no need for external energy, less than 1% water exchange, negligible waste production as well as significant carbon sequestration.

 

“This breakthrough development translates into a remarkable improvement in cell-core energy density, reaching 2,000Wh/L in batteries and approximately 1,700Wh/L in full-size EV batteries – more than double the performance of current state-of-the-art technologies,”

“Sienza’s 3D pure silicon anode has demonstrated an average gravimetric capacity of 2,941 mAh/g,” Professor Gharib said. “This means that for every gram of silicon, our batteries can store 2,941 milliampere-hours of electricity, significantly higher than the industry standard for graphite, with a gravimetric capacity of 372 mAh/g.”

Aside from completely avoiding the cobalt issue, Sienza notes that its manufacturing process does not rely on the solvent-based coating systems deployed for producing conventional lithium-ion batteries. Sienza cites one commonly used solvent in particular, N-methyl-pyrrolidone (NMP).

[–] ArtikBanana@lemmy.dbzer0.com 3 points 10 months ago

I'm not sure what challenges wave power faces that tidal doesn't, but the Rance tidal power station in France has been operating since 1966.

[–] ArtikBanana@lemmy.dbzer0.com 1 points 10 months ago* (last edited 10 months ago)

CorPower Ocean announces wave energy breakthrough in Portuguese waters from March.

Edit: There's also Eco Wave Power Commences Sending of Clean Electricity to the Israeli National Electrical Grid from January.

Edit2: There's the 254MW Sihwa tidal power station

Tidal power plants aren't a new technology though, so I'm guessing you meant wave power.

[–] ArtikBanana@lemmy.dbzer0.com 11 points 10 months ago

From the article:

Oxford PV, a UK company spun out of Oxford University Physics in 2010 by Snaith to commercialize perovskite photovoltaics, recently started large-scale manufacturing of perovskite photovoltaics at its factory in Brandenburg-an-der-Havel, near Berlin, Germany. It’s the world’s first volume manufacturing line for “perovskite-on-silicon” tandem solar cells.

https://doi.org/10.1039/D2SE00096B

By adapting the formulation and synthesis of the perovskite and the cell design and encapsulation optimization, Oxford PV succeeded in mitigating stability-related deficits and aims at providing future buyers of their modules with the industry-standard 25 year performance guarantee

[–] ArtikBanana@lemmy.dbzer0.com 10 points 10 months ago* (last edited 10 months ago) (2 children)

It might not be as thin as before, but is several microns of thickness not thin?
It was nice if they gave more details about exactly how thick it is at 27% efficiency though.
I'll look around to see if I can find more information about it.

Edit: And by the way, I'm actually not aware of any 27% solar panels currently in production.
Other than the ones Ofxord PV has recently begun manufacturing (established by the same Prof. leading this research).

[–] ArtikBanana@lemmy.dbzer0.com 13 points 10 months ago (7 children)

One of the main advantages here is that this can be applied to almost any surface because of how thin it is.

From the article:

We can envisage perovskite coatings being applied to broader types of surfaces to generate cheap solar power, such as the roofs of cars and buildings and even the backs of mobile phones. If more solar energy can be generated in this way, we can foresee less need in the longer term to use silicon panels or build more and more solar farms.

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