Deathbeddit

Deathbeddit t1_j6cgtm4 wrote

Reply to comment by ZeroVDirect in Smaller, Cheaper Flow Batteries Throw Out Decades-Old Designs; A new approach holds promise for storing intermittent renewable energy at scale by TradingAllIn

The paper referenced in the article used zinc iodide, but specifically stated it would be compatible with zinc bromide and other electrolyte chemistries.

I think that suggests that if scalable and practical, the improvements potentially highlighted in this article could be applied to the flow through segment of the company you mentioned.

(Note, I’m not a chemist, so please correct me if I misunderstood anything- the article was linked in OP’s story, and I compared to the website you provided).

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Deathbeddit t1_j6bovf7 wrote

Reply to Smaller, Cheaper Flow Batteries Throw Out Decades-Old Designs; A new approach holds promise for storing intermittent renewable energy at scale by TradingAllIn

“Flow batteries can, in theory, be easily scaled up to ­megawatt-hours by increasing the size of the tanks. They can also have longer lifetimes and be safer than lithium ion. They remain costly, though, with a capital cost of around US $800 per kilowatt-hour, more than twice that of lithium-ion batteries. “But they can be much cheaper, and our work accelerates this process,” says Nian Liu, a chemical and biomolecular engineering professor at the Georgia Institute of Technology.”

Improvements in the design efficiency could reduce that price and footprint by half initially and further as additional research progresses.

Another important element is that the electrolytes could be made easier to recycle which would bring down cost.

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Deathbeddit t1_j4arcin wrote

Reply to Scientists Have Reached a Key Milestone in Learning How to Reverse Aging | Time by johnwayne2413

To start, I’d like an explanation on:

  • If using mice, why not use old mice, it’s not like they live forever? “Accelerating aging” in mice and then reversing effects seems roundabout and to not be testing what they say they’re interested in.

  • if the modification is essentially dedifferentiation: “instructions guided the cells to restart the epigenetic changes that defined their identity as, for example, kidney and skin cells” what is to stop the cells from uncontrolled growth (cancer)?

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Deathbeddit t1_j0mb39x wrote

Reply to comment by The_Ombudsman in Switzerland’s Giant “Water Battery” Starts Working by Wagamaga

The Ludington plant in MI is about 77% efficient iirc, not including energy for maintenance etc. It’s an open system pulling water in from Lake Mi and kills TONS of fish. Like bonkers amounts of fish, even though there are nets to try to exclude them. Also filling is mostly powered by fossil fuels today. An increasing fraction of energy to fill it comes from Renewables but that’s a work in progress. It is a steep design in a lot of ways and I am expecting new technologies will continue to be more appealing. I don’t know what the failure of the embankments would look like but I wouldn’t want to be near it myself.

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Deathbeddit t1_j0m9s52 wrote

Reply to comment by bull1226 in Switzerland’s Giant “Water Battery” Starts Working by Wagamaga

Good example, I think you mean Ludington pumped storage on Lake Michigan. Pretty sure mostly powered by fossil fuels still. Another commenter provided a link, I think it’s important to emphasize that it burns more energy than it produces, not including the impact of building and maintaining the huge system. 10 to fill, 7 generated.

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