Remundo wrote:yes, but to deprive oneself of the regulation (in tension / frequency) and the energy buffer offered by the network leads to heavy installations, even unreliable.
The system connected to EDF can be tilted exceptionally in complete autarky (in the manner of a generator) provided that the electrical installation of the house provides for the construction. It's currently totally unplanned
I guess it depends on how that electricity is used. I see it as the small generator that helps me in case of power failure. There is no complicated installation. It is enough to enlighten me, to turn the computer, the TV, the circulator of the solar collectors, the fridge, even the freezer. A possible overflow could be converted into heat (radiator, water heater).