Yes Germany may export 4MWh of energy but they may still import 20MWh. Its common for countries to exchange power back and forth so just exporting 4MWh is meaningless. You see statistics showing both net export vs net import to be able to draw any conclusions.
With real market price (<70€/MWh) of electricity and solar panels this newer happens.
do you cover profit in your cost calculation?
are you stupid?
i calculate 32€ per 1MWh of pure costs for solar power.
even if you only calculate 20 years and not 40 years you get 64€
and this is lower than your (<70€/MWh)
your argument is only valid if you point out that the profit rate is to high.
sure the profit rate of the companies are to high but its not the fault of the solar power.