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▲ adrianN 3 hours ago

Solar+A couple of hours of batteries is already economically viable. The storage problem that is still expensive is bridging days/weeks of insufficient sun and wind.

▲HDThoreaun 3 hours ago | parent [-]

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

▲pinkgolem an hour ago | 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

▲fpoling an hour ago | parent | prev | next [-]

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.

▲adrianN 2 hours ago | parent | prev [-]

The war in Iraq cost a trillion dollars.

▲banktops 33 minutes ago | parent | next [-]

1 week national battery storage is totally doable. All we need to do is convince the rest of the planet to stop making GPUs, phones, computers, and EVs for the next decade, and then give us all their rocks. 78.4TWh is about $19T (all in costs) for a national battery grid for 1 week storage, could be built over ten years but would need the US to build and own double the current global output, not even considering where all the raw materials and labor comes from.

▲eptcyka an hour ago | parent | prev | next [-]

So far.

▲Saline9515 an hour ago | parent | prev | next [-]

Do you imply that it was really cheap, just like solar+batteries?

▲adrianN an hour ago | parent [-]

You generally get more return on investment if you invest in building infrastructure in your own country rather than investing in blowing up infrastructure in a different country. So I’m implying that solar and batteries are a lot cheaper than the war in Iraq.

▲ 2 hours ago | parent | prev [-]
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