Puzzled by all the unit measurements on your bill? Here's a rundown of what they mean and how they apply to you.

The MPRN (Meter Point Reference Number) number identifies your connection to the NIE Network and is unique to your home.

The MPRN (Meter Point Reference Number) number identifies your connection to the NIE Network and is unique to your home.

A volt is the electrical force required to push current through an electrical circuit. Most domestic homes in Ireland are supplied at a nominal voltage of 230V (single phase).

This is the term normally used for medium and high voltages, e.g. 20 kV = 20,000 volts.

An amp is the measurement of current flowing in an electrical circuit. Its full name is an 'ampere'.

This is a term used to describe the level of 'apparent' power imported or consumed by your business, and is the basis of your Maximum Import Capacity (MIC)

A watt is the unit of measurement of 'active/real' power. The power used in a basic electrical circuit is the volts multiplied by the amps.

A kW is the term normally used for 'active/real' electric power, sometimes referred to as 'Demand' or 'Load'.

A megawatt is sometimes used as a unit of measurement for large electric loads provided to business customers.