TransitionZero Email Format
Services for Renewable EnergyEngland, United Kingdom11-50 Employees
TransitionZero is a climate-tech non-profit based in London, England, founded in 2021. It develops software to shorten the time required to build clean energy at scale, with a focus on open-access and open-source tools for electricity system modelling. Its flagship product, Scenario Builder, lets policymakers, planners, and investors rapidly construct, evaluate, and share energy-system and grid models without coding expertise or reliance on external consultants. The tools are supported by model-ready datasets, training, and market insights, and are designed to strengthen in-house capacity and support resilient, affordable, and locally led energy transitions. The organization targets governments, financiers, grid operators, and planners involved in energy transitions. In 2024 it introduced Solar Asset Mapper to enhance decision-making across numerous countries.