I believe a generator can only be used for backup power. If the BVIEC chatches you using it when mains power I avalable they can charge you for whatever they think you should have been billed.

Even in the US if you install a backup generator that is perminently wired into your house system the power company or local elecrical inspector has to pass on the switch over mechanism. Same with solar. That is to prevent it backfeeding into the main when workers are maintaining the line.

Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. - Mark Twain