Have you tried the "forgiveness is easier than permission" approach? What would happen if you just installed the solar panels? I know that in some countries they'd come by with a bulldozer and tear them down again - is your country one of those?
In the case of solar panels, I'm going to assume the OP is talking about something like a grid-scale solar farm instead of rooftop solar production:
1: You need an agreement with "the grid" to get payment for the electricity you generate.
2: Feeding electricity into a power grid is a very dangerous thing, at a minimum the grid operator needs to make sure you aren't going to cause a fire or otherwise break their equipment.
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That being said: If you're a homeowner trying to set up a small solar installation, you can pair the panels with batteries and skip feeding into the grid.
Also in the UK it would probably be a civil lawsuit, which doesn't have a jury, although if you violate a civil court order you can still get a jail sentence.