Every year, on 14th August, the Day of Energetics is celebrated in Poland. Quoting Wikipedia is: "Polish celebration of the energy industry". Belos-PLP - the largest producer of power equipment, annually gives its employees a free day. This year will be November 17th. As a result, contact with us will be difficult on that date.

And why August 14th is the Energy Day? August 14th is the date of the death of St. Maksymilian Kolbe (electrician love), who since 1991 has been the patron of this holiday.

https://pl.wikipedia.org/wiki/Maksymilian_Maria_Kolbe