SE3... Funny choice. The electrical zone in Sweden with the highest amount of nuclear. At this hour about 70% of the power comes from nuclear, 15% from hydro, and about 3% from wind. SE4 in south of Sweden has 0% nuclear, and is the zone with the highest energy cost and with the highest production from wind.

We are however also talking about two very different kind of prices. My numbers are what the customer is paying, which can be seen either on the website by the electric company or sites dedicated to it (https://www.eon.se/el/elpriser/aktuella and https://elen.nu/dagens-spotpris/se4-malmo/#). What you are describing is the price on the energy market Nord Pool, like those that can be read at (https://www.energimarknadsbyran.se/el/dina-avtal-och-kostnad...).