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Grid code

Grid code

For connection of large or medium sized embedded generation (normally for capacity of 50MW or more) it will be necessary to satisfy National Grid requirements contained within the grid code. Please note the requirements below for compliance with the distribution code and with the grid code for demand and generation customers:

  • connection of large demands and all generation has to comply with the distribution code
  • Large generators (>50MW) also have to comply with the grid code.

Please view the grid code on the National Grid website at

Distributed Generation connection guide

There is a technical guide on the process of connection aimed specifically at generators. To access the guide please follow the link to the technical guide.