ArtikBanana

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[–] [email protected] 4 points 1 month ago* (last edited 1 month ago)

This seems to be a step towards a solution / a solution.

Although there's a company which has supposedly already solved it completely.
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

[–] [email protected] 14 points 1 month ago (5 children)

Their previous study also goes into efficiency and cost.
One of the main advantages of firebricks is their low cost.

 

Firebrick systems powered by renewable energy could be used for up to 90% of industrial process heat applications, the Stanford study says. Meeting that demand in the U.S. would require firebrick system capacity of 2.6 TWh, with a peak discharge rate of 170 GW.

[–] [email protected] 9 points 1 month ago

A bit more than half of the land used to grow corn for ethanol in the USA, is needed for a photovoltaic system to power the entire country according to Prof. Mark Z Jacobson (who calculated it according to 2050 energy needs after full electrification).

[–] [email protected] 18 points 1 month ago (1 children)
 

“But even in the only country that is massively building, China, nuclear development is comparatively marginal. In 2023, China started up one new nuclear reactor, that is plus 1 GW, and more than 200 GW of solar alone. Solar generated 40% more power than nuclear and all non-hydro renewables—mainly wind, solar, and biomass—generated four times as much as nuclear.”
The report also highlights how nuclear power is being challenged not only by the strong growth of solar and wind, but also by battery storage, whose costs are projected to decline below those of coal-fired and nuclear power plants by around 2025 in China. “Solar plus storage is already significantly lower than nuclear power in most markets today, as well as highly competitive with other low-emissions sources of electricity that are commercially available today,” it also notes.
The authors also cite data from investment bank Lazard revealing that solar-plus-storage can already be cheaper than gas peaking and new nuclear. “The competitive cost and large-scale availability of variable renewable energy sources combined with firming options—especially storage—could well turn out to be the game-changer of energy policy in the years to come,” they further explain.

 

While the much lower fuel cost has to be a bit of a shocker (we all know EVs are more efficient and cheaper to operate, but not 95% cheaper), the bigger surprise has to be how much more convenient the electric boat was in a certain key way. “We actually had range anxiety, but not for the Candela. The irony is that the photographer’s gasoline-powered chase boat had to refuel six times during the trip, while we only charged three times,” said Gustav Hasselskog.

[–] [email protected] 2 points 1 month 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.

[–] [email protected] 6 points 2 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.

[–] [email protected] 11 points 2 months ago* (last edited 2 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

[–] [email protected] 4 points 2 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.

 

The German government says that the H2Mare OffgridWind project in Denmark has connected two electrolyzers to a wind turbine for hydrogen production, while Ontras Gastransport and H2 Energy Europe have agreed to define the technical and commercial framework for hydrogen transportation in its Green Octopus Mitteldeutschland pipeline project.

GreenGo Energy will also collaborate with Lodestone, a local iron mining company, to integrate green hydrogen into steel production, aiming to set new standards for sustainable manufacturing.

 

In its four years of operation, the world’s first semi-submersible floating offshore wind farm, WindFloat Atlantic, has surpassed anticipated production figures, achieving a total cumulative output of 320 GWh.

[–] [email protected] 4 points 2 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

 

Oxford PV is delivering its first commercial perovskite solar modules to US customers. The 72-cell solar modules have an efficiency of 24.5% and, according to the company, can generate up to 20% more energy than conventional silicon modules.

Earlier this year, the company set a new efficiency world record of 26.9% with its 60-cell residential-sized module, unveiled at this year’s Intersolar. It claims to have a “clear roadmap” to bring the technology to over 30% efficiency.

 

A research team at Osaka University in Japan has developed green light wavelength-selective organic solar cells (OSCs) that transmit blue and red light necessary for crop growth and use green light, which contributes only a little to photosynthesis, for power generation.

[–] [email protected] 9 points 2 months ago* (last edited 2 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.

[–] [email protected] 3 points 3 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.

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