Price of electricity in Finland peaks at 2.35€/kWh today. Keeping my tiny granny cottage warm costs me over 50 euros for a single day. It's negative 25C (-13F) outside.
That massive spike of 50c/kWh at the left looks tiny compared to today even though that's already insanely expensive
Staying warm is not the issue. It's the price for that comfort. Running a 1kW space heater for 24 hours at yesterday's prices would have cost a little over 26 euros.