Glossary of terms

NMI

Stands for National Meter Identifier and is a unique number that identifies an electricity installation.

MIRN

Stands for Meter Installation Registration Number and is a unique number that identifies a gas installation.

Installation

This is the site where your meter is located.

CSV file

A CSV is a spreadsheet file that can be used in applications such as Microsoft Excel.

XML

XML files are text files that are normally compatible with major record keeping software.