Guidance

Development costs and the nuclear Regulated Asset Base (RAB) model

This guidance sets out how development costs for nuclear projects will be treated under the RAB model.

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Details

The nuclear Regulated Asset Base (RAB) model is a method of funding future nuclear projects, providing support for their design, construction, commissioning, and operation.

In order to bring a nuclear project to the point of entering construction, the company must invest significantly in the project’s development. This could include, for example:

  • building the project company
  • maturing the supply chain
  • investigating the land

If, following this investment, a project is taken forward under the nuclear RAB model, appropriately incurred development costs can be added to the RAB. This guidance sets out the criteria and process for doing so.

Updates to this page

Published 28 November 2022

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