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To free the Baltic grid, old technology is new again

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Re: To free the Baltic grid, old technology is new again

#91

Earlier quoted context omitted.

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> USSR was an union of Republics, of which Russian SSR was just the one. As the quote goes, "All animals are equal, but some animals are more equal than others." Pretending Russia didn't have a special status in the USSR doesn't win points in an argument, it just makes you look misinformed.

[flagged]

Re: To free the Baltic grid, old technology is new again

#93

Earlier quoted context omitted.

Indeed, they do. The Wikipedia page photos are some of my favorite photos of power tech. Another thing that made a really strong impression was visiting a power dam and realizing that it was almost dead quiet while an enormous amount of power was being generated. Just a slight hum and a vibration in the floor, that was all.

But if those rotors were even a few grams out of balance, you'd feel it. Also, if something went wrong with the valves, you'd also hear it. Right before you drowned and/or were killed by flying concrete. Moving water does NOT like to stop.

Yes, the water hammer from a major dam must be quite impressive if you try to contain it by main force rather than to reduce the flow gradually.

Re: To free the Baltic grid, old technology is new again

#94
post #31

As an aside, one of the most stunning proofs of how successful the European Union is happened with the grid. On 8 January 2021, the synchronous area of Continental Europe split into two, the system separation resulted in a deficit of power (approx. -6.3 GW) in the North-West Area and a surplus of power (approx. +6.3 GW) in the South-East Area, The reaction speed was something to behold. The event happened at 14:05 CE…

The EU itself is a thing to behold. Just managing to prevent wars between their members for so many decades is a remarkable accomplishment, unheard of in the continent's troubled history.

Not perfect, and certainly not invulnerable to bad actors, but still a beautiful accomplishment of will and politics.

Re: To free the Baltic grid, old technology is new again

#95
That LitPot Link [1] to Poland looks really vulnerable if Russia / Belarus decide the Baltics need to rejoin. There's three others (Harmony Link won't be completed to 2028), yet that looks like a quick half-day to sever. Only 40km to the corner of Belarus, most artillery listed here can hit 40km+ {2] Get something like this if it goes total war. [3]

[1] https://spectrum.ieee.org/media-library/a-map-of-the-baltic-...

[2] https://www.army-technology.com/features/featurethe-10-most-...

[3] https://en.wikipedia.org/wiki/Upshot-Knothole_Grable#/media/...

Re: To free the Baltic grid, old technology is new again

#96

Flywheels are underrated tech for both stability and decentralized energy storage. They should receive environmental funding just like solar and wind do.

My company is working on this right now. We are early/stealth but moving towards a pilot project and acquiring IP.

Placeholder site: vortical.io

Re: To free the Baltic grid, old technology is new again

#97
post #90

Flywheels are underrated tech for both stability and decentralized energy storage. They should receive environmental funding just like solar and wind do.

People explored them in the 2008-ish climate boomlet and it was hard to make the physics/costs work. If something has changed since then it might be worth looking at again, else that's probably why nobody is pursuing them today.

Physics work, but cost has historically been the issue. My current project involves driving down the cost to make extremely affordable 50 kWh flywheel modules.

Re: To free the Baltic grid, old technology is new again

#99
post #31

As an aside, one of the most stunning proofs of how successful the European Union is happened with the grid. On 8 January 2021, the synchronous area of Continental Europe split into two, the system separation resulted in a deficit of power (approx. -6.3 GW) in the North-West Area and a surplus of power (approx. +6.3 GW) in the South-East Area, The reaction speed was something to behold. The event happened at 14:05 CE…

I found this article from bloomberg on the event! > Europe’s grid, which is usually connected from Lisbon to Istanbul, split into two as the northwest and southeast regions struggled to keep the same frequency. The problem originated in Croatia and led to the equivalent of 200,000 households losing power across Europe. Supply to industrial sites was cut in France and Italy. > Transmission grids need to stay at a freq…

And the work to speed up Moldova & Ukraine's connection to the sychronous grid, just after Russia invaded in 2021, was impressive too.

Re: To free the Baltic grid, old technology is new again

#100
post #95

That LitPot Link [1] to Poland looks really vulnerable if Russia / Belarus decide the Baltics need to rejoin. There's three others (Harmony Link won't be completed to 2028), yet that looks like a quick half-day to sever. Only 40km to the corner of Belarus, most artillery listed here can hit 40km+ {2] Get something like this if it goes total war. [3] [1] https://spectrum.ieee.org/media-library/a-map-of-the-baltic-...…

It goes both ways. Whole Kaliningrad region is in range of barrel artillery and very, very easy to monitor. Also, most troops left to invade Ukraine.
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