• Electric Meter Number
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• Electric Meter Number Location
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• Landis Gyr Electric Meter Serial Number

A meter serial number (or 'meter ID') is an alphanumeric reference used in Great Britain to identify an electricity meter. Although meter serial numbers are intended to be unique, this can not be assured and duplicate serial numbers do exist. There are a variety of formats used over many years, but many meter serial numbers take the form A##AA###### (e.g. S06DS123456). The first letter indicates the manufacturer, the first two digits indicate the year the meter was calibrated and certified, and the second letter (or pair of letters) indicates the company that purchased the meter. The five/six digit sequence is a serial batch number. There may be a space separating the groups of numbers and letters. Electric meters in other countries besides Great Britain do not necessarily follow this standard.

Meter serial number. Although meter serial numbers are intended to be unique, this can not be assured and duplicate serial numbers do exist. There are a variety of formats used over many years, but many meter serial numbers take the form A##AA###### (e.g. The first letter indicates the manufacturer. How To Find Your MPRN Your Meter Point Reference Number (MPRN) is the unique 11 digit number assigned to your electricity connection and meter. It starts with the digits 10 and is always shown on the bill from your electricity supplier. Do not confuse your MPAN number with your electricity supplier account number or the meter serial number printed on your electricity meter. The format of a MPAN is standard and will normally be shown on your bill using a large ‘S’ and a grid of numbers.

If you’re looking on an SSE bill, it’s the 13 digit number in the box marked as ‘Supply Number’ on the second page, to the right hand side. It is the bottom row of numbers. An example number is: 20 0001 5001 165. If you don’t have a previous bill, you can find out your MPAN by calling your local electricity supplier. Mpan - is the electricity version of the mprn number which identifies the property to supplier and is unique to property, serial number is unique to the meter and identifies the meter to supplier Glad you like it!

See also[edit]

A Meter Point Administration Number, also known as MPAN, Supply Number or S-Number, is a 21-digit reference used in Great Britain to uniquely identify electricitysupply points such as individual domestic residences. The gas equivalent is the Meter Point Reference Number. The system was introduced in 1998 in order to provide a competitive environment for the electricity companies, and allows consumers to switch their supplier easily as well as simplifying administration. Although the name suggests that an MPAN refers to a particular meter, an MPAN can have several meters associated with it,^[1] or indeed none where it is an unmetered supply. A supply receiving power from the network operator (DNO) has an Import MPAN, while generation and microgeneration projects feeding back into the DNO network are given Export MPANs.^[1]

• 1Structure
  • 1.4Core
• 3Export MPANs

Structure[edit]

An MPAN is commonly separated into two sections: the core and the top line data. The core is the final 13 digits and is the unique identifier. The top line data gives information about the characteristics of the supply and is the responsibility of the supplier.

The full MPAN is required to be depicted on electricity bills (the boxes on the top and bottom line are generally unaligned).^[2]

The core data is on the second line, the supplementary data on the first.

Profile Class (PC)[edit]

The first two digits of a full MPAN reflect its profile class.^[3]

Profile class 00 supplies are half-hourly (HH) metered, i.e. they record electricity consumption for every half hour of every day, and supplies of the other profile classes are non-half-hourly (NHH) metered. A NHH supply must be upgraded to HH where:^[4]

HH data is recorded by the meter and collected by an onsite download, or by remote communication methods such as GSM, SMS, GPRS or telephone line.^[2]

Domestic NHH import MPANs always have a profile class of 01 or 02. Domestic NHH export MPANs are allocated a profile class of 08.^[3]

Meter Time Switch Class (MTC)[edit]

The MTC is a 3 digit code that reflects the various registers a meter may have, such as a single rate, day/night split, or a seasonal time of day.^[5][6]

Line Loss Factor Class (LLFC)[edit]

The Line Loss Factor Class or LLFC^[7] is used to identify the related Distribution Use of System (DUoS) charges for the MPAN. The figure reflects both the amount of distribution infrastructure used to supply the exit point and the amount of energy lost through heating of cables, transformers, etc.^[2]

Core[edit]

The MPAN core is the final 13 digits of the MPAN, and uniquely identifies an exit point. It consists of a two-digit Distributor ID, followed by an eight-digit unique identifier, then by two digits and a single check digit.

Distributor ID[edit]

Great Britain is divided into fourteen distribution areas. For each area a single company, the distribution network operator, has a licence to distribute electricity.^[8] They effectively carry electricity from the National Grid to the exit points (each having a unique MPAN and a possibility of several meters) where the customers are. The owner of the distribution network charges electricity suppliers for carrying the electricity in their network. Their DNO licensed regions are the same geographic areas as the former nationalised electricity boards.^[8]

In addition to the distribution network operators noted above who are licensed for a specific geographic area, there are also independent distribution network operators (IDNOs). These own and operate electricity distribution networks which are mostly network extensions connected to the existing distribution network, e.g. to serve new housing developments.

Scottish Hydro Electric Power Distribution also provide distribution services in South Scotland as an IDNO and Southern Electric Power Distribution provide IDNO services in all other England and Wales areas. Other IDNOs have no 'base' area.^[11]

Check digit[edit]

The final digit in the MPAN is the check digit, and validates the previous 12 (the core) using a modulus 11 test. The check digit is calculated thus:

1. Multiply the first digit by 3
2. Multiply the second digit by the next prime number (5)
3. Repeat this for each digit (missing 11 out on the list of prime numbers for the purposes of this algorithm)
4. Add up all these products
5. The check digit is the sum modulo 11 modulo 10.^[12]

MPAN state[edit]

Electric Meter Number

The supply identified by the MPAN can be in one of four states: disconnected, de-energised, live, and new.

• Disconnected: The service cable has been removed and the MPAN will not be reused.
• De-energised: The service cable is in place, but the fuse has been removed. The meter remains connected to the distribution network, but no electricity can be used.
• Live: Both the service cable and the fuse are in place. The supply is fully operational.
• New: A new MPAN has been generated, however, the top line (supplementary data consisting of the Profile Class and Meter Time-Switch Code) is not yet complete. The service cable may or may not be installed.

These terms are by no means standardised. For example, a disconnected supply might be referred to as a 'dead' supply.

Export MPANs[edit]

The vast majority of MPANs are import MPANs, where energy is being consumed. However, if a supply exports to the distribution network, then an export MPAN is issued. If a supply both imports and exports, then both an import MPAN and export MPAN are issued.

Microgeneration[edit]

Kumpulan Serial Number Idm

Formerly, export MPANs required a half-hourly compliant meter to be installed. Since 2003, it has been possible for microgeneration projects, with a capacity of 30 kW or below, to have a non-half-hourly meter to export back into the distribution network. The uptake was slow, with the first microgeneration export MPAN being issued in June 2005. Some suppliers may not bother to register the export MPAN in MPAS as the revenue is so small. Export capacity over 30 kW is required to be half-hourly metered.

Metered Supply Point[edit]

The Metered Supply Point (MSP) is the point at which the meter measuring a customer's consumption is located. It is thus also the point at which either the distribution network operator's supply, or the building network operator's lateral cable, terminates and the customer's equipment begins. In order to firmly establish a supply's MSP, the MPAN needs to be associated with a meter serial number.

Although it is common for an MPAN to be associated with one meter serial number, in some cases there is a many-to-many relationship. For example, one meter could be associated with both an import and an export MPAN, or one MPAN could be measured by three separate meters.

Metering Code of Practice^[13][edit]

Unmetered supplies[edit]

It is possible for small predictable supplies to be unmetered.^[15] Examples are street lights, traffic signals, signs, bollards, telephone kiosks, CCTV and advertising displays.

For a piece of equipment to be connected to the distribution network via an unmetered connection, its consumption should not exceed 500 watts and it should operate in a predictable manner, with no provision for it to be manually turned on at the end user's request. Generally the equipment would either be in operation and taking a supply of electricity 24 hours a day, or be controlled by a photocell, as is often the case for street lights.

It is the customer's responsibility to maintain an accurate and up-to-date inventory of unmetered supplies, and to inform the UMSO (UnMetered Supplies Operator) of all changes to the connected equipment.

Larger local authorities tend to trade their unmetered energy on a half-hourly basis. To do so, they employ a meter administrator^[16][17] who will use daily data from a photo-electric control unit (PECU) array which is then used to calculate the energy consumption. A PECU array is a device that holds a representative number of the photocells that authority uses on their street lights or traffic signals.^[18] By trading energy as unmetered half-hourly the authority will accurately pay for the energy consumed by their declared unmetered equipment, and because the data is downloaded daily the authority will see their energy invoices change throughout the year to represent the changes in season and daily lighting levels.

If, however, the unmetered supplies are being traded as non half-hourly the UMSO undertakes the responsibility to calculate an EAC (Estimated Annual Consumption). This is done using a simple formula which takes into account the circuit watts of the equipment and the annual hours of operation. For example, a piece of equipment that is in use 24 hours per day will have annual hours of 8766. For, say, a CCTV camera rated at 24 circuit watts the EAC would be 210.384kWh, calculated as circuit watts x annual hours divided by 1000.

If the equipment is street lighting the same process is used; however, the annual hours will change as each photocell is assigned a set number of annual hours which indicate how and when the lights turn on and off. These annual hours have been set by Elexon and are not locally agreed with the UMSO by the customer.

Once an EAC calculation has taken place, an EAC Certificate is provided to the customer's appointed electricity supplier for billing, with an electronic copy of the EAC being sent to the appointed data collector. The DNO make a Distribution Use of System charge on the electricity supplier for the delivery of the electricity to the customer's unmetered equipment.

Standard Settlement Configuration (SSC)[edit]

Each non-half-hourly supply has a four digit code called the Standard Settlement Configuration (SSC), which specifies the number of registers a meter has, and the times that each register is recording electricity usage. The times that a register is recording is specified with a five digit code Time Pattern Regime (TPR). So for example a supply with SSC 0943 has two registers with TPRs 00404 and 00405. The 00404 TPR register records from 01:00 to 02:30 and 08:00 to 23:30, and the 00405 register records for the rest of the time.^[19]

Meter Point Administration System[edit]

Each DNO operates a Meter Point Administration System (MPAS) which holds the following information for each MPAN:

• Data Collector (DC)
• Data Aggregator (DA)
• Meter Operator (MOP) or Meter Administrator for HH unmetered
• Customer
• Address of the exit point
• Associated MPANs
• GSP Group

MPRS is the name of the software package that implements the MPAS system for all DNOs.^[20] Since MPRS is used by most DNOs it is often used interchangeably with the term MPAS.

ECOES[edit]

ECOES (Electricity Central Online Enquiry Service) is a website that allows users and authorised industry parties to search for supply details (past and present) using such things as the 13-digit MPAN bottom line number, the meter serial number or the postcode. The user can determine a wide range of data relating to the supply including the full address, meter details, the current energisation status and also the appointed parties (i.e. the supplier, distributor, MOP, DC and DA). The site is populated from information sent from the supplier regarding the metering system.^[21]

Only non-domestic users (with two valid MPAN's that are not Class 1 or 2) can register to access this service.^[22]

See also[edit]

Electric Meter Number Location

External links[edit]

• Specific definitions of meter timeswitch codes can be found on the MRASCo documentation page.

Water Meter Serial Number

References[edit]

Itron Electric Meter Serial Number

1. ^ ^abElexon. 'Settlement of Microgeneration Export'(PDF). Archived from the original(PDF) on October 9, 2007.
2. ^ ^abcEnergy Linx (2007). 'MPAN (Meter Point Administration Number)'. Retrieved 2007-02-22.
3. ^ ^abElexon. 'BSCP516 – Balancing and Settlement Code'(PDF). Archived from the original(PDF) on 2012-03-19. Retrieved 2011-07-25.
4. ^Elexon (2015-06-25). 'Change of Measurement Class and Change of Profile Class'(PDF). Archived from the original(PDF) on 2016-08-17. Retrieved 2016-07-05.
5. ^MRASCo. 'The Rough Guide To MTCs'(PDF). Retrieved 2011-02-05.
6. ^Elexon. 'Meter Timeswitch Class table'. Archived from the original on April 26, 2011. Retrieved 2011-08-23.
7. ^'Line Loss Factor Class(es)'. Elexon Glossary. Retrieved 2013-01-27.
8. ^ ^abEnergyLinx (2007). 'MPAN Request (Meter Point Administration Number Request'. Retrieved 2007-02-22.
9. ^ ^abElexon. 'Market Participant Role'. Retrieved 2009-12-20.^{[dead link]}
10. ^Elexon. 'GSP Group'. Retrieved 2010-06-22.^{[dead link]}
11. ^Ofgem. 'Notice under section 11 of the Electricity Act 1989'(PDF). Archived from the original(PDF) on December 30, 2005. Retrieved 2007-02-22.
12. ^Energy Retail Association. 'Data Item Definition v1 final'(PDF). p. 23. Archived from the original(PDF) on 2007-09-25. Retrieved 2014-02-25.
13. ^See 'Archived copy'. Archived from the original on 2007-08-13. Retrieved 2008-11-16.CS1 maint: Archived copy as title (link)
14. ^'Change Implementation'.^{[dead link]}
15. ^'Unmetered Supplies'. ELEXON. Retrieved 3 January 2019.
16. ^Power Data Associates Ltd. 'Meter Administrator'.
17. ^ICTIS (UK) Ltd. 'Meter Administrator'.
18. ^'Photo Electric Control Unit Arrays'. Power Data Associates. Retrieved 1 January 2019.
19. ^Elexon (2011-12-12). 'What are Standard Settlement Configurations?'. Retrieved 2016-07-05.
20. ^St. Clements Services Ltd. 'Metering Point Registration System'. Retrieved 2008-05-29.
21. ^MRASCO. 'Access to ECOES Data'. Retrieved 2009-07-11.
22. ^'Briefing_Note_on_Customer_Access_NDC_2'(PDF). ECOES. MRASCO. Retrieved 25 June 2015.

Landis Gyr Electric Meter Serial Number