It's not a free market in Europe since there is vast amount of planning regulations involved etc. If you want to see free markets in action, look at the electricity prices in Texas, where ironically renewables are also the dominant source.
https://www.gridstatus.io/live
Texas is an interesting example because they allowed true unregulated rates for residential consumers. Consumers liked getting lower rates until that winter storm a few years ago had bills for some in the $thousands. Then they didn't like the free market so much.
It did suck, but even when we factor that spike into the equation (including the outages), Texans end up paying for less for electricity in aggregate. Texas has also beefed up winter hardening requirements since then.
