Does that mean Norway is making a huge amount of money exporting electricity over those interconnections?
as varjag said: "there's a social consensus about the value people get from this taxation level"
Example, the Netherlands had the biggest gas reserve in forever. It's 2/3rds or 3/4ths empty now and extraction has or is stopping due to it causing earthquakes. But the income from exporting the excess gas has been used for socialist policies. Now that that income is gone, and now that expenses for gas have gone way up (also due to reliance on cheap Russian gas), people are feeling it in their bank accounts directly and the socialist policies are being dismantled one by one.