Table 6 Table of final feature selection

Forecast wind generation onshore

Forecast wind generation offshore

Forecast solar generation

Forecast aggregated generation

Scheduled import from Austria

Scheduled export to Austria

Scheduled import from Czechia

Scheduled export to Czechia

Scheduled import from Denmark

Scheduled export to Denmark

Scheduled import from Luxembourg

Scheduled export to Luxembourg

Scheduled import from Netherlands

Scheduled export to Netherlands

Scheduled import from Poland

Scheduled export to Poland

Scheduled import from Switzerland

Scheduled export to Switzerland

Forecast price

Lag of 24 h

Weekday: Monday

Lag of 26 h

Weekday: Tuesday

Hour of the day (sinus)

Weekday: Wednesday

Hour of the day (cosine)

Weekday: Thursday

Hour of the year (sinus)

Weekday: Friday

Hour of the year (cosine)

Weekday: Saturday

Weekday: Sunday