BTW the sites I have in question are just hard standing ground and I wish to fit about 2-3 porter cabins on them, so All I need is A set of mains plugs I can just run an extension lead from
You will need a meter as well and a contract to pay an electricity supplier for the electricity used. The DNO is not an electricity supplier. The DNO only transports ( along their cables ) the electricity you take from your chosen supplier.
I would suggest that you be less offensive about people you will need to deal with. They will help people who are polite. They may be ( far ) less helpful to people who are posting comment like this on a forum that DNO staff could be reading....
I just don't like the idea of phoning an 08 number and weighting in a queue for hrs and ending up talking to some !£$%&#@
And by the way,
All I need is A set of mains plugs
you can buy mains plugs in hardware shops.