We’re committed to providing our customers with a reliable supply of electricity. Occasionally you may experience voltage fluctuations, this may cause:
- Lighting that is either very dim, very bright or flickers
- Intermittent problems charging your Electric Vehicle or issues with your solar panels
- Electric heating, kettles or cooking appliances taking longer than usual to reach the required temperature.
In the United Kingdom, the standard voltage for single-phase electricity supply is 230 volts. The allowable voltage tolerance range is typically 216.2 volts to 253 volts, this is -6% to +10%. Fluctuations within this range should not cause issues for most electrical equipment.
Our engineers and support staff working 24/7 365 days a year to keep the voltage and the electricity supply to your home or business within this range, however sometimes the voltage will be outside of this range for short periods of time. This could be while we’re working on a network fault in the area, or due to a sudden change in electricity usage in the area.
Is your electric vehicle (EV) charger reporting voltage issues?
Your EV charger operates within an acceptable voltage range. If the voltage goes beyond this range, the charger will not function and will display a red ring or an error. This safety feature protects the charger and your vehicle from damage caused by high or low voltage. If this happens you may need to switch the charger off and on at the isolator switch. In the first instance you should speak to your installer or electrician to check there’s not any problems with your equipment.
How can UK Power Networks help?
If you’re experiencing persistent voltage issues, please report this online to us and we’ll let you know if there’s any known problems on the electricity network in your area. If we’re not aware of any network problems, we’ll arrange for one of our engineers to visit your property, to investigate and check our equipment.
We may find something wrong straight away, or we may need to call again to fit a recording device to monitor and measure your supply voltage for two weeks. Once we’ve analysed the results, we’ll tell you what we’ve found and if we need to do any more tests or work.