Free Solar for worth getting for after the SHTF?

[Highlander]

We have 16 panels on our roof,..[ although they are our own ], depending on how the panels are fitted, they can strengthen your roof considerably, we are prone to high winds so the rails have to be screwed into the roof rafters,.. then the panels protect the tiles to a greater extent..... We purchased the panels when the tariff was 43 pence a unit so we make a lot of money, I think the tariff is only about 16 pence now isn't it

With reference to repairing your roof if the panels are owned by someone else,.. by law you should still have access to whats yours, so either the owners of the panels have to remove them while you do your work, or you are allowed to remove them yourself

What I would like to know is how can a person disconnect the panels from the mains system if the grid fails, to allow me to connect either direct to the house or to batteries