https://www.theregister.com/2024/02/08/europe_deepest_mine_battery/
This will back up a 2 GW power plant for 4 seconds.
On 2/9/24 01:59, john larkin wrote:
https://www.theregister.com/2024/02/08/europe_deepest_mine_battery/
This will back up a 2 GW power plant for 4 seconds.
(Energy storage using a weight suspended in a 530 m deep
mine shaft.)
An object in free fall would take 10 seconds to reach the
bottom of a 530 m shaft, so that is not going to work.
The article is severely dumbed down, but we can glean a bit
of extra info nevertheless: They plan to use a 530 m drop
and claim to store 2 MWh. Neglecting losses, that would
require a weight of 1385 tons. That could be a concrete
cube with sides of 8 m. I'm neglecting the weight of the
cable as well. Maybe I shouldn't...
Anyway, weights, cables and winches are a silly way to
store energy. Too much hardware and not enough energy.
A waste of money.
On Friday, February 9, 2024 at 2:30:18 AM UTC-8, Jeroen Belleman wrote:
On 2/9/24 01:59, john larkin wrote:
https://www.theregister.com/2024/02/08/europe_deepest_mine_battery/
This will back up a 2 GW power plant for 4 seconds.
Anyway, weights, cables and winches are a silly way to
store energy. Too much hardware and not enough energy.
A waste of money.
Usually, you go with the river/reservoir/dam if you want low
cost per kWh, because the terrain is free and scales beautifully.
But, you can't carry that in a flashlight, nor is is there always
a reservoir around the corner from you. The cable/weight
fits a small niche requirement, presumably.
If you could plant wind power harvesting in a hurricane path,
the cost of the physical plant is REALLY minimal; there's just
not a good way to store the resulting energy, or get it to shore...
Maybe kite borne generation and hydrogen production in
ocean barges?
On Friday, February 9, 2024 at 1:47:39 PM UTC-8, Jeroen Belleman wrote:
On 2/9/24 22:04, whit3rd wrote:
If you could plant wind power harvesting in a hurricane path,
the cost of the physical plant is REALLY minimal; there's just
not a good way to store the resulting energy, or get it to shore...
Maybe kite borne generation and hydrogen production in
ocean barges?
I don't know about your place, but where I live, hurricanes
are rare and violent freak events. Building a system to harvest
the energy of those would have an extremely poor return on
investment.
The power available, though, is massive.
And, ocean real estate is more plentiful than any other kind...
<https://science.howstuffworks.com/environmental/energy/energy-hurricane-volcano-earthquake1.htm>
Two hurricanes could replace the world's other energy supplies. All of 'em. Violence tamed is how internal combustion engines work, so that's nothing new.
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