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Understanding energy terminology for Electricity

Understanding energy terminology for Electricity

This glossary list for Electricity has been developed for those who work within the public sector and we envisage this guide to be easily understood by any staff undertaking energy procurement within their role.

The list uses plain English to explain the specialist words and expressions that sometimes make energy terminology hard to understand.

Other energy terminology you may be interested to view:



Automatic Meter Read – Also known as a Smart meter, this meter works similarly to a mobile phone and uses a SIM card to send the readings to your supplier to ensure that you are billed correctly.

Authorised Supply Capacity – Also known as Available Capacity, a charge for the demand of your Half Hourly Electricity supply.


Climate Change Levy – An additional Government imposed tax on Energy invoices when you use over the eco daily threshold.

Change of Tenancy – The process to recognise a change of ownership at a property.


Kilowatt Hour – This is the unit of measurement for gas and electricity consumption. The number of kWh you have used within a given period will be shown on your bill, and you will be charged for each of these units.


Feed in Tariff – FITs Recovery is when a supplier re-charges for the reimbursement of renewable Energy. If you generate renewable Energy, you can claim the monies from your supplier via their FITs contract.


Meter Point Administration Number – A 13 digit number that is used to identify your supply point.

Meter Serial Number – Each meter will have a different serial number to determine whether you are being billed for the correct meter. There can be multiple meters on the same MPAN.

You may be interested in the following frameworks:

If you would like to speak to a member of the Energy team please contact them on 0116 294 4142 or email