Long-duration Energy Storage | Ponec | Energy Seminar

[@gobogama]

In nutshell, this looks like creating mini-suns by storing renewable energy by heating carbon materials and converting light radiated from these mini-suns into electricity using PV. At the same time, recycling waste light energy by reflecting it back to mini-sun. i.e. carbon bank/ heat storage unit. Incredible!!!!!

[@ronaldgarrison8478]

I really wonder about that estimate, given early in the talk, about heat being 2/3 to 3/4 of all energy use. I don't have stats easily at hand, but if that includes heating cooling buildings, then there are huge opp'ys for converting to electricity and saving a lot of energy in the process. That's about heat pumps, and for AC, ground source heat pumps can still improve a lot on current practice, although AC is already electric.

[@sietze.temporary]

Well have you though about using ceramics foam blocks to float the gas through that is used inside to store energy ? Also hydrogen is quite good for moving energy store lightweight equipment like airplanes or even a tractor cannot have batteries because a tractor would sink into a field considering the energy density needed, great speech by the way, we should not all het on one horse it is not a race use the proper tool for the proper job you certainly got a good tool, couple ot to a set of windmills and power a green heavy industrie plant whilst at the same time a nice grid balance is there.

[@netional5154]

They have raised $50 million in early 2022 so no problem there for a while.

[@johnredford942]

I wonder about safety issues with having big blocks of 1500C carbon lying around. E.g. What happens if a fire damages the containers? I would think the carbon would ignite. Sure, steel plants have huge buckets of molten iron hanging in them, but you don't want that in your paper mill either. Still, big blocks of lithium aren't fun either when they're on fire, nor are tanks of vanadium compounds for flow batteries. Overall, this looks valuable and immediately scalable!

[@jinyoungheo]

Great idea especially combining several technologies with strong advantages - but what about the daily energy discharge loss due to high temperature? Would there be special technologies for keeping the carbon at ultra high temperatures?

[@douglasengle2704]

It appears that for electricity to compete with natural gas in heating costs it has to cost below $0.03 kWh. What type of electric heat is being compared? For spacing heating with heat pumps the cost is much lower than it would be for electric resistance heat for temperature shifts of about 40°F. Most people would be in agreement for much higher atmospheric CO2 levels to about three times today's to about 1200 ppm for greatly increasing C3 plant growth greening the earth.

[@AlsMeatMarket]

Using the system in industry is a potential problem. For industry, like ethanol, continuous heat is necessary. Conceptually the high temperature can drive the process but this system only works with multiple banks of energy storage being charged and discharged simultaneously in order to provide a continuous flow of heat to the process. so the charge/discharge time must be properly configured to handle not only continuous output but also handle the 100 hour cloudy/rainy periods without loss of output. Do these economics only work if carbon cost exceeds a certain level?

[@ronaldgarrison8478]

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[@CARambolagen]

Talk to Elon Musk for finance? If he can afford twitter...