Early Development of Options and Interested Persons’ (IP) Process overview

The purpose of Interested Persons’ options is to increase the diversity of options considered within the Network Options Assessment (NOA) process through academic and industry participation. Options submitted through this process are required to be new and innovative and not currently assessed in NOA.

For us to consider an option, it must have demonstrable benefits, such as increasing the capability of a boundary whilst keeping costs as low as possible.

The early development of IP options will be an ongoing collaborative process between the provider, National Grid Electricity System Operator (NGESO) and the incumbent Transmission Owner (TO), as appropriate.

We will apply a screening stage to filter options from interested persons. We consider the following factors:

  • genuine network need
  • operability
  • practicality, for instance delivery date
  • costs
  • whether the same or similar option has been considered before and ruled out for good reason.

For further detail see the ‘Early development of options and Interested Persons’ process’ Section 7 of the NOA Methodology

Learn more about the NOA methodology

National Grid ESO - Network Options Assessment NOA 2020 download - Turbines in sunset

The NOA process

Learn how and why the NOA Process is conducted each year. It includes how we evaluate onshore and offshore reinforcement options.


NOA for interconnectors

See how the NOA Process is conducted for interconnectors.


Suitability for third party delivery and tendering assessment

Learn more about how we apply the competition assessment criteria for NOA options


ESO process for high voltage and stability management

This section covers the NOA Pathfinder voltage and stability assessments.


Early development of options and Interested Person’s process 

Read how we increase the diversity of options considered by collaborating the use of the early development of options and IP process.


Network Options Assessment (NOA)

The NOA publication and associated information are available here.