British Map of Distribution Network Operators (DNOs)
For information on G83/1 and G59/2 connection procedures see:
Energy Networks site Information for generators seeking a connection
Please note that these are only guides to ER G83 and ER G59, not the documents themselves. For the latest versions, which are available only for a fee, click here. Here you will find a second link for the engineering document catalogue where you can search for, purchase and download a wide range of ENA engineering documents that include G59 and G83 under "Engineering Recommendations" (ER).
G83/1 is valid until March 2014 but from then G83/2 should be used (see below)
NEW G83/2 standard for Grid connection <16A per phase - the version here was supplied by Ofgem last year.