Scenario Builder is a no-code modelling tool for energy system analysts. It lets users build, run, and analyse results from long-term capacity expansion models – quickly, transparently, and at scale. Designed for analysts working with or advising governments, it simplifies the modelling process while maintaining analytical depth.

What is energy system modelling? Watch our energy system modelling 101 video.

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What can Scenario Builder do ?

You can use it to:

• Analyze different energy scenarios and pathways.
• Assess the impact of various technology choices and policy directions.
• Understand the costs and benefits of different energy futures.
• Explore how existing energy infrastructure might evolve.

The initial release of Scenario Builder covers Indonesia, the Maldives and Samoa, with more countries to follow.

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What type of research can Scenario Builder be used for?

Scenario Builder helps answer questions like:

• What will it cost to decarbonise a country’s electricity grid?
• What infrastructure investments are needed to meet demand?
• What emissions reductions can we expect from current policies?

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What is the roadmap for Scenario Builder?

This is our first version and we know there’s a lot more to build. This early release of Scenario Builder is focused on long-term capacity expansion modelling.

Early users have a chance to explore the platform early, help shape its direction, and flag bugs or usability issues before full public release.

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Who is TransitionZero?

We are a climate analytics nonprofit established in 2021. We provide system modelling data, software and analysis to support energy transition planning decision-making. We are grant-funded by the Quadrature Climate Foundation, Google.org, Sequoia Climate Foundation, Bloomberg Philanthropies, and European Climate Foundation, among others. Our data, software and analysis is used by developers, financiers, planners and think tanks internationally. Learn more about TransitionZero