Embedded Capacity Register
UK Power Networks
The Embedded Capacity Register (ECR), formerly known as the System Wide Resource Register (SWRR), lists all generation, storage and flexible demand resources where the installed generation capacity, export capacity or the import capacity is greater than or equal to 1MW.
More information can be found here: https://www.ukpowernetworks.co.uk/electricity/distribution-energy-resources/the-embedded-capacity-register