Yep but how else can you explain it then?
What is so strange about your bill is the 1,40 Units. Normally they would work with only round numbers.
(and in my calculations I think they have discounted the 1,40 units)
So leaves 3 options IMHO (of course this is guessing)
1- ToU
2- Feed-in Tariff
3- ???????
So if I have to choose then it's #1, but let us know what is the conclusion of the PEA