For reference, 100 GW are 3.3 % of the average world electricity production in 2020 of 3062 GW, but this is supposedly only required for a few minutes.
Power output vs. time comparisons can be interesting. The Hiroshima "Little Boy" bomb output about 18 GWh worth of energy, in a few milliseconds. A large electrical generation plant of 1 GW capacity generates the same amount of electrical power in about 18 hours, and is releasing the thermal energy in about 2--3 hours at typical Carnot efficiencies.
Jokes aside, I don't think there are any interconnectors on the planet that can handle that amount of power for even a split second, let alone the infrastructure to supply it for minutes at a time to a single location. The biggest grid interconnectors in the world cap out at a few gigawatts.