In most of the world fossil-fuel energy are more expensive than renewable energy, which is why more coal power plants are being shut down than built (in 02020, outside PRC; in 02021, in the world). The advantage of fossil fuels is mostly that they're more predictable. Britain (and the Netherlands, Germany, and a few other places) have a particularly bad version of the problem because they have so little sunlight.

But the problem Europe is hitting right now is not unexpectedly high prices, but actually running out. Blackouts, fuel pumps running dry, empty inventories, maybe a lack of natural gas. Such shortages can happen in one or another place because someone gambled and lost, but when they happen systemically, it's because of price controls; I wonder why those aren't mentioned in the article? The international LNG market isn't subject to price controls, but retail utility markets are typically heavily regulated, to the point of routinely forcing electricity distributors into unprofitability from time to time, usually temporarily.

Climate change is likely to cause a lot of hydroelectric disruption over the next century as rainfall patterns move the rainfall from where hydroelectric dams have been built to where they haven't.