21–30 of 325 posts
I knew Danielle Fong from Lightsail Energy, folded in 2016, and at that time compressed air seemed like a great solution especially for LatAm that needed robust low cost batteries for critical infrastructure (like hospitals) on an unreliable power grid. https://en.wikipedia.org/wiki/Danielle_Fong Would be great to see this technology reach maturity!
Interesting. There's a good video describing the operation here: https://www.youtube.com/watch?v=cOWjwwKSR78 After watching it, I now understand that they aren't flooding the entire borehole, but rather are building a smaller high-pressure chamber at the bottom. The chamber is connected to pipes to a surface reservoir. When air is pumped into the chamber, it displaces water up toward the surface. When generating, the…
Earlier quoted context omitted.
I too was wondering that as the ideal gas law states that PV = nRT. When you compress a gas it gets hotter, conversely, allowing it to decompress cools it. I assume they store the heat energy... https://en.wikipedia.org/wiki/Compressed-air_energy_storage
Yes, their website says they have a thermal store.
This brings to mind the other post about the Amish that's on today's front page. I believe the Amish sometimes use compressed air as an alternative form of power.
Given it's GS, $250m is peanuts.
Interesting. There's a good video describing the operation here: https://www.youtube.com/watch?v=cOWjwwKSR78 After watching it, I now understand that they aren't flooding the entire borehole, but rather are building a smaller high-pressure chamber at the bottom. The chamber is connected to pipes to a surface reservoir. When air is pumped into the chamber, it displaces water up toward the surface. When generating, the…
I wonder what is the loss/recovery %age.
Does this technology only work in select places or are underground caverns fairly commonplace?
Interesting. There's a good video describing the operation here: https://www.youtube.com/watch?v=cOWjwwKSR78 After watching it, I now understand that they aren't flooding the entire borehole, but rather are building a smaller high-pressure chamber at the bottom. The chamber is connected to pipes to a surface reservoir. When air is pumped into the chamber, it displaces water up toward the surface. When generating, the…
Totally out of my depth here, but does cooling the gas down have the added benefit that it'll be heated by the earth whilst stored?
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Would energy storage not be a good use of that money? Society is facing a large problem: climate change. One way to reduce the impact of climate change is to use renewable energy like solar and wind. Solar and wind have a big problem; they can't be turned on and off. That means to displace fossil fuels, we need to store energy when it's sunny and windy, and release that energy when it's not. Hence, things like compre…