This Python script is based on lasseedfast elplot (https://github.com/lasseedfast/elplot) but with the ability so select zone (elområde)
Usage: elzoneplot.py -z <SE|SE1|SE2|SE3|SE4> -g <MONTH|WEEK|DAY|HOUR(default)> -o <plot|std|oFile>
-z, --zone <SE|SE1|SE2|SE3|SE4>
-g, --groupby <MONTH|WEEK|DAY|HOUR(default)>
-o, --output <plot|std|oFile>
plot=open dataframe directly
std=direct dataframe output to stdout
oFile=direct dataframe output to file (csv)
Data can be downloaded at https://www.svk.se/om-kraftsystemet/kraftsystemdata/elstatistik/
The script is made for Excel-files found under "Statistik per elområde och timme".