Dr. Tom Collins:

Sorry, yes, the question of usage was discussed at our last meeting. Our sense is that rather than defining a level of usage and saying that it is reasonable, we should look retrospectively at what has been used and instead of using the word "normal", it might be better to use the word "average". We would need to determine the average usage, per person, aggregated to household, on some method of self-declaration. If we can agree that figure - there are already figures in the public domain to that effect - then we can decide that a charge could kick in at some percentile above the average usage-----