Suppliers wishing to notify ESB Networks of a potential problem at an unmetered site should use the
market messages and processes as defined to support metered sites i.e. MPD 12.
Section 3.1 of this MPD should be updated as follows:
Unmetered reports of problems or damage will be identified at the Technical MPRN level for group
unmetered sites and for single point unmetered. The Technical MPRN will be used as the identifier to
track and process unmetered reports, as the MPRN would be used for a NQH or QH connection. The
same process and market message can be applied to single point and group unmetered process.

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