MPAN Records: Why They Matter For Commercial Property Teams

An MPAN is a 21-digit reference number that uniquely identifies an electricity supply point. It is not associated with the occupier or owner of the property but with the physical metering point itself, so it remains constant even when tenants change, suppliers change or the property changes hands. This makes it a stable reference for energy administration purposes.

The MPAN appears on electricity invoices, supply contracts and correspondence from the network operator. It is used by suppliers, network operators and metering agents to identify the specific supply point when making enquiries, switching contracts or registering meter reads. Without the correct MPAN, engaging with any of these parties accurately is difficult.

For gas supply, the equivalent reference is the Meter Point Reference Number, or MPRN. The principle is the same: a unique identifier for the physical gas supply point that remains constant regardless of commercial arrangements. Both references should be recorded for any site that has electricity and gas supply.

An accurate MPAN register forms the foundation of commercial property energy administration. It establishes what metering assets are present across the portfolio, links each meter to a supplier and contract, enables correct invoice allocation, and makes it possible to identify which supply points are uncontracted or operating on out-of-date terms.

When a property is acquired, one of the first energy administration tasks is identifying and registering all meter points. MPANs that are unknown to the new owner cannot be transferred into managed contracts, will default to the existing supplier's standard rates, and will not appear in any reporting or monitoring process. The result is energy costs that are unknown and uncontrolled.

During due diligence prior to a property purchase, the MPAN register is a key document. It tells the acquirer how many supply points exist, who supplies each one, when contracts expire and whether there are any metering assets that are not currently in active use. Gaps in this information at acquisition become administrative problems to resolve retrospectively.

Incomplete MPAN records are among the most common energy administration problems in commercial property portfolios, particularly those that have grown through acquisition. Each acquisition may bring with it a set of energy accounts that were managed differently by the previous owner, with records held in different systems or by different personnel who are no longer available.

Duplicate MPANs, where the same supply point has been registered under different account references or managed by different parts of the organisation, are less common but not unusual in larger portfolios. The result is that the same meter may be appearing in different reports at different costs, producing an inaccurate portfolio total.

Unregistered supply points, where an MPAN exists in the network but is not held in any internal record, represent a direct financial risk. These supply points will be supplied on standard out-of-contract rates, and without visibility of the MPAN, correcting this situation requires identifying the meter from physical inspection or network enquiry.

Building an accurate MPAN register for an existing portfolio typically begins with a combination of supplier account review, invoice analysis and, where necessary, network enquiry. Supplier accounts will have the MPAN attached to each billing address; invoices from each supplier should carry the MPAN and MPRN for each supply point; and the network can confirm which MPANs are registered to a given site address.

For newly acquired properties, the MPAN should be obtained as part of the acquisition process, alongside the existing supply contracts and account credentials. Where account credentials have been lost, most suppliers have a process for re-establishing access with appropriate evidence of ownership or occupancy.

Maintaining accuracy once the register is established requires a defined process for recording new supply points when properties are acquired, updating records when contracts change or meters are replaced, and conducting periodic reconciliations between the MPAN register and active supplier accounts. Without a maintenance process, records gradually drift out of date as the portfolio evolves.

Beyond their role as a reference identifier, MPANs carry additional technical information about each supply point. The MPAN structure encodes the distribution network operator responsible for the supply point, the line loss factor class, which affects the cost of network transportation, and the meter time switch class, which describes the settlement profile used for that meter. This information is relevant when reviewing contracted terms and understanding why costs differ between supply points.

For properties with multiple supply points, each representing a different metered area such as a landlord supply, a common parts supply or individual tenant meters, maintaining a clear mapping of which MPAN relates to which area is essential for accurate cost allocation. Incorrect allocation, where landlord costs are mixed with tenant recoveries or vice versa, creates problems in service charge accounting.

For larger or more complex portfolios, MPAN records are most effectively maintained as part of a centralised energy management record rather than as isolated reference numbers. Linking each MPAN to its building, floor or area, supplier, contract terms, meter type and data collection status creates a complete asset register that supports all aspects of ongoing energy administration.