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HDThoreaun | on: Solar power is becoming bigger than nuclear
The US uses around 4TWh of electricity a night. A battery with that capacity, to get through the night with no generation, would cost over a trillion dollars. Of course thered still be some generation at night, but still, using a battery just to get through the night is not even close to viable
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pinkgolem | parent | next
You might want to update your numbers, 1 kwh is somewhere between 50€/kwh to 75 including electronics... No economics of scale, shipping included..

That makes 300B

Eu pricing

jerven | parent | next
Is that actually that much more than building 400GW worth of nuclear generation capacity (assuming 10 hours of nighttime)? I think that, that simple calculation shows that it is viable. Even a trillion is 1/32th of the US GDP. Construction over a decade should not stress the US economy at all.

I also think your trillion number is at least double the raw cell cost today.

adrianN | parent | next
The war in Iraq cost a trillion dollars.
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eptcyka | root | parent | next
So far.
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traceroute66 | parent | next
> The US uses around 4TWh of electricity a night.

And if we subtract all those datacentres crammed with Nvidia GPUs ? ;)

If we're being honest here, the problem with the US is that it has always treated any sort of energy source as being infinite and has always been quite extravagant in its use of energy.

Whether a preponderance for gas-guzzling SUVs or datacentres the story is always the same. The US mentality is there will always be infinite oil in the pump and infinite electrons in the cable.

thelastgallon | parent | next
US has ~250 million cars. If they are all EVs (100KWh), it is 25TWh capacity.

Reserving 20% of that capacity to supply power back to the grid is 5TWh.

EVs can be charged for free during the day, ~20% of solar is lost due to curtailment. Even if a significant percentage (10 - 20%) of the people decide they are going on long drives from Florida to Vancouver and turn off supply-power-to-grid-for-money in the app, its fine, there are plenty of cars. It is the cheapest, most resilient, distributed and self-healing energy ecosystem. Only one problem, it won't make the super billionaires money. Unless it can be packaged in a way to make the super billionaires money, its a no go in US.

This infrastructure buildout costs nothing, people buy new cars all the time (~20M/year), just buy EVs instead. Because people are providing the capital and the storage infrastructure, they should be paid for it.

fpoling | parent
Just by scaling up the existing technologies the full cost including installation and maintenance of a grid-scale battery in 5 years will be below 100 usd/kwh. So the price is max 400 billions or 1% of US GDP.