Remundo wrote:moreover I still do not understand the interest of connecting a generator directly on the national electricity grid ...
Economically no interest, unless you have access to a free fuel (recycled fried oil or pure self produced?) ... or for micro CHP: the valuation of hot can make this (limit) interesting!
In Belgium we pay 28 cents per kWh (green kWh in my case but the nuclear Belgian coal is the same price)!
So many projects will become profitable without any subsidies and that's good!
A diesel group that consumes red 0.70 € / L = 23 cents per kWh ... (excluding depreciation and maintenance ...)
That's the subject of my question: I'm cogit-
Otherwise, there is also the cheat green kWh qu'exnihiloest evokes ... this calculation does not interest me but some will be able to do it ... after a cheating and scornful government I can only encourage cheating to those who can do it!