FAQ - Supply Number Explained

What is a Supply Number?

An Electricity Supply Number, sometimes referred to as a Metering Point Administration Number (MPAN) is the unique number given to each electricity customer, to identify a meter point. This number is issued by the local distribution company that maintain the electricity cables in your area. 

What is a Profile Class?

Every site that is not measured every half hour is settled on a profile class, which illustrates the expected consumption pattern. Select a profile from the list to view the associated consumption pattern.

1 Domestic Unrestricted
2 Domestic Economy 7
3 Non-Domestic Unrestricted
4 Non-Domestic Economy 7
5 Non-Domestic Maximum Demand 0-20% Load Factor
6 Non-Domestic Maximum Demand 20-30% Load Factor
7 Non-Domestic Maximum Demand 30-40% Load Factor
8 Non-Domestic Maximum Demand >40% Load Factor

What is a time Meter Time Switch Code (MTC)?

The MTC indicates how many registers (set of meter reads or dials) your electricity meter has and what times they will operate during the day. For Example, the MTC will show if your meter has two registers, one which records day consumption, the other night consumption.

What is a time Line Loss Factor (LLF)?

The LLF code stipulates the expected costs the distribution company will charge the supplier for using the cables and network in your region. This LLF code will also indicate to the supplier the potential charges incurred, due to loss of energy incurred whilst getting the electricity supplier to your meter.

What is a Distributor ID?

The Distributor ID will identify the local Distribution Company for your electricity supply. The Distribution company is responsible for management of the distribution system and electricity wires which transports the electricity to your meter. The main ones are:

10 - Eastern Electricity
11 - East Midlands Electricity
12 - London Electricity
13 - MANWEB
14 - Midlands Electricity
15 - Northern Electricity
16 - NORWEB
17 - Scottish Hydro-Electric
18 - Scottish Power
19 - Seeboard
20 - Southern Electricity
21 - SWALEC
22 - SWEB
23 - Yorkshire Electricity

What is a Meter Point ID Number?

This is a unique number within the distribution area to identify the actual metering point.

What is a Check Digit?

This number is calculated from the Distributor ID and Meter Point ID Number to provide a check digit that other systems can use to validate the both numbers.