Futureproof your power

Is your generation compliant with mandatory regulations?

Find out more

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.

Are you ready for the 1 September 2022?

If you are unsure if you need to make any changes, help is available through contractors who can assess your equipment, complete the works and help report compliance. Your distribution network operator (DNO) can also offer help and advice. You can access DNO contact information here.


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.


Declare compliance

Submit a compliance declaration and evidence - Our ALoMCP portal is set up to help you do this. Our user guide can also offer advice.

Reasons to declare your compliance

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.

Help to contribute to a strong, resilient low carbon electricity network

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.

Frequently asked questions

Is funding available?

Funding applications for the Accelerated Loss of Mains Change Programme are now closed.

Our Partners

National Grid
Northern power grid
electricity north west
Western power distribution
uk power networks
sp energy networks
Scottish and southern electricity
energy networks association

Step-by-step Guide

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