As part of the UK's energy transition, all owners of generating sites in Great Britain are required to ensure that their installations are compliant with Loss of Mains protection regulations. The changes are critical to supporting a robust and reliable electricity network and non-compliance will be subject to enforcement action.
Check if you need to upgrade
Use our self-serve tool or contact your DNO to confirm what action is needed.
Make any changes
If needed, make any necessary upgrades if your equipment is not compliant with Loss of Mains protection settings.
Submit a compliance declaration and evidence - Our ALoMCP portal is set up to help you do this. Our user guide can also offer advice.
The transition is mandatory for all G59 generation sites and everyone is required to comply before 01 September 2022.
Generator owners without compliant assets must act now to make the necessary changes, or face enforcement action
You will be supporting your community and the wider initiatives that are helping us to meet the UK’s zero-carbon targets.
Your upgrades will make your equipment more efficient and improve the resilience of the grid too.
This programme is led by National Grid ESO, the Energy Networks Association, Distribution Network Operators (DNOs) and Independent Distribution Network Operators (IDNOs). Together we are working to build grid resilience and drive the mission to zero-carbon.
Is funding available?
Funding applications for the Accelerated Loss of Mains Change Programme are now closed.
What do I do if my equipment is already compliant?
How do I know if I need to make changes to my equipment?
Do I need to take an action if I have generation but I have not yet heard from my DNO about the changes?
What are the benefits of these changes?
How can I identify if my inverter or relay is already compliant?
How do I complete the mandatory settings changes?
Do I need to use a contractor?
When is the deadline for compliance?
Do I need to change my domestic generator?
If I have already made changes, do I need to make more?
What are the setting changes required in the updated EREC G59?