# Cost Modelling STEP

> Contract award record from UK public-sector procurement sources.

## Key facts

- Public buyer: [United Kingdom Atomic Energy Authority](/buyers/united-kingdom-atomic-energy-authority/contract-awards)
- Contract winner: CALC4XL GmbH
- Award value: £99,000
- Tender value: £230,000
- Award date: 10 May 2021
- Published: 3 August 2021
- Contract start: 1 September 2021
- Contract end: 31 August 2024
- Stage: awarded
- Procurement category: goods
- Notice ID: f1598fec-4492-425c-91c4-a8a2093f4685-457146
- OCID: ocds-b5fd17-a888815d-03f5-4a42-830b-51322076e363

## Description

This is an award notice only not a call to competition\. The UKAEA cost management team currently consists of 4 cost engineers\. The function is responsible for costing the STEP prototype and commercial fusion reactors\. Costing to date has been at top-down level and the aim is to transition to detailed bottom-up costing on sub-systems where the design reaches sufficient level of maturity\. Therefore, in the next 2 years, the fusion reactor costing will consist of both top-down and bottom-up costing\. Also, on suitable sub-systems and components, value engineering activities are planned\. A bespoke in-house solution is being used for the top-down model and a commercial external solution is being sought for the next steps of cost modelling that need to scale from the existing top-down to a full bottom-up cost model of the STEP prototype reactor as well as extrapolate to commercial fusion reactors\. The contract will be in place for 3 \+1\+ 1 Years - Total of 5 years

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- [Isolation Transformers](/contracts/ocds-b5fd17-a9eef88c-f5d2-4da4-a421-1c112cfabcc4): United Kingdom Atomic Energy Authority
- [Employee Assistance Programme](/contracts/ocds-b5fd17-a2e8d11a-9970-43cf-9088-a4c30017882c): United Kingdom Atomic Energy Authority

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/f1598fec-4492-425c-91c4-a8a2093f4685-457146)