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For any energy source to make a worthwhile difference in decarbonizing the global economy, it has to be the most affordable option. Our design is driven by economics and market requirements to achieve scalable implementation.

Key insights that have influenced the technical parameters include:

  • Cost is driven by speed of construction, irrespective of reactor technology

  • Using the standardized industrial supply chain de-risks licensing, skills, materials 

  • 100 MWe fits within infrastructure constraints of most existing electricity markets 


OPEN100 replicates key aspects of the most successful past nuclear deployments and right-sizes these designs to match these parameters without adding any complexity.  Below you will find a detailed economics and comparison to standard PWR finances.

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The economic model for the OPEN100 project is based on cost studies performed by the U.S. Department of Energy's Energy Economic Data Base Program: Phase VIII Update Report, December 1986 for a standard 1144 MW PWR.  


Our comparison made modifications to incorporate changes in design, supply chain, construction sequence, and other assumptions. We've even included room in the budget for site specific engineering, such as utility integration and waste heat removal.





Data Trees

Choose a data structure to explore the differences in cost elements of the reference PWR and OPEN100.


Click on each box to explore subcategories of costs.

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