How to read smart meters

Before you start, check you're looking at your smart meter and not at your In-Home Display – a device with a screen, usually set up next to your meter(s) when they were installed.

If you’re not sure you’ve taken the right reading don’t be scared to have another go – you can’t ‘reset’ or break your smart meter no matter how many times you try!

Most OVO members will have a first-generation smart meter (SMETS1) so will need to follow the instructions in 1) or 2). If your smart meter has a different setup, please scroll through the guide to find instructions for your model.


1) How to read your first-generation smart meter (SMETS1) installed by OVO

To read your electricity smart meter:

  • Press 9 on the keypad

  • Your smart meter screen will show a series of letters: IMP KWH

  • You’ll see 8 digits (eg 0001234.5) followed by kWh at the bottom right of the screen

  • This figure is your latest reading – we only need the first 7 digits before the decimal place

To read your gas smart meter:

  • Press 9 on the keypad

  • VOLUME will appear on your smart meter screen

  • You’ll see 6 digits (eg 00123.4) followed by an ‘m3’ (cubic metres) symbol at the bottom right of the screen

  • This figure is your latest reading – we only need the first 5 digits before the decimal place

2) How to read your SMETS1 installed by OVO – if you’re on a dual-rate tariff for electricity – Economy 7

To read your electricity smart meter (for your gas reading you can follow the same instructions as above):

  • Your electricity smart meter shows separate readings for your off–peak and daytime use. You always need to send us both readings whatever time of day it is. Please note that it's your night/off-peak reading that you'll see first – take this reading before pressing 6 again

  • Press 6 on the keypad until you see IMP R01 followed by 8 digits. This is your night/off–peak reading – we only need the first 7 digits before the decimal place

  • Press 6 on the keypad again until you see IMP R02 followed by 8 digits. This is your day/peak reading – we only need the first 7 digits before the decimal place


If your smart meter doesn’t have the buttons above please scroll the list below to find your model and how to read it:

For electricity smart meters:

1) If your meter has A and B buttons:

  • Press the A button until you see TOTAL ACT IMPORT

  • The number shown below is your meter reading

  • We only need the first 7 digits before the decimal place

2) If your meter has a green A and a white B button:

  • Press and hold the green A button for at least 2 seconds

  • Press it again to cycle through the display

  • Your meter reading is the first row of numbers

3) If your meter has 3 unmarked buttons:

  • Press the middle button

  • Your meter reading is the number below IMP on the screen

  • We only need the first 7 digits before the decimal place

4) If your meter has an orange button on the right and blue buttons on the left:

  • Press the orange button

  • Your meter reading is the row of numbers followed by kWh

  • We only need the first 5 digits before the decimal place, if there is one

For gas smart meters:

1) If your meter has A and B buttons:

  • Keep pressing the A button until you see METER INDEX

  • This is your meter reading

  • We only need the first 5 digits before the decimal place, if there is one

2) If your meter has 3 square buttons (they could be labelled A, B, and C):

  • Press the A (or left) button

  • Your meter reading is the row of numbers followed by an ‘m3’ (cubic meters) symbol

  • We only need the first 5 digits before the decimal place, if there is one

3) If your meter has a left arrow, a circle, and a right arrow

  • Press the middle circle button

  • You should see “current meter reading” at the top of the screen

  • Your meter reading is the row of numbers followed by an ‘m3’ (cubic meters) symbol

  • We only need the first 5 digits before the decimal place, if there is one

4) If your meter has orange and blue arrow buttons:

  • Press the orange button

  • Your meter reading is the row of numbers followed by an ‘m3’ (cubic meters) symbol

  • We only need the first 5 digits before the decimal place, if there is one

5) If your meter has two white buttons to the right of your display. Your buttons might also have arrows and other markings around them:

  • Press the right button. This might be labelled 'OK'

  • The display should wake up and you'll see a row of digits followed by m3

  • We only need the digits before the decimal place, if there is one


If your smart meter doesn’t match any of the above, find out how to read some of the industry’s more common brands.

Send a meter reading