> The longest recorded in Finland is 90 days.

Not trying to diss Finnland, but the country requires less than 1,000,000 Terrajoulehours of energy per year. That's like a few percent of Germany's usage. I'm sure Europe could cover you.

> It is not. The CESA is synchronized. The various peripheral areas are not part of it.

You are correct. But transmission lines do exist and synchronization would be possible. The baltic countries have done so in 2025 to get away from the Russian grid.

>> Power transmission is a thing. > It is not a thing you can trust.

You trust it now. My guess would be that most fossil fuels in Finnland are imported and that the country is already deeply dependent on cross-border electricity transmission (as basically every other country in Europe)?

For most countries, energy independence is no realistic option and never has been since serious expansion of industry. It's something you factor into hardening your infrastructure and Finnland can hedge against this with land-based transmission lines to Sweden and building out capacity for h2/methane imports.

> I am very pro that, but this will take a very long time to build out.

Longer than the presumed 20+ years to build even a single nuclear reactor?

It doesn’t take 20 years to build a nuclear power plant or Thorium reactor, which is coming online soon in China, it also doesn’t take that long to build high speed rail system either.