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2050 Calculator programme
The 2050 Calculator can be used to bring real scientific evidence into the debate around energy issues, and in turn, to inform decision-making.
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Cutting carbon with the 2050 Calculator

The 2050 Calculator is a uniquely open, transparent and interactive energy model that can be used by governments, stakeholders and the public to understand how to decarbonise a region or country, and to develop evidence-based policies. It was originally developed for use in the UK but is now in use in over 30 countries.

UK Government (BEIS)
Programme management, grant management, technical advisory services, decarbonisation, climate change


The UK Government’s Department for Business, Energy and Industrial Strategy (BEIS) appointed us to deliver the £3M, three-year 2050 Calculator programme, leading a consortium which includes Imperial College, Climact and Ricardo. The programme supports developing country governments to build their own version of the UK’s 2050 Calculator energy and emissions model – a tool that allows users to trial different options for reducing emissions at a faster rate and to build a pathway that meets long-term emission targets to 2050.


The 2050 Calculator can be used to bring real scientific evidence into the debate around energy issues, and in turn, to inform decision-making. It can be used to evaluate policies currently in place and also to inform the strategic direction of a country or region’s energy or climate change policy. Through engaging in a dialogue around the 2050 Calculator, countries are encouraged to explore all possible pathways for low carbon development in a transparent and simple way. The models are published online, meaning they can then be used to increase and improve dialogue on this subject across business, civil society and the general public.

We are delivering the extension of the programme within countries with an existing calculator and introducing the programme to a further up to 5 developing nations. Participating countries include Vietnam, Malaysia, Thailand, Philippines, India, Nigeria, Kenya, and Colombia.


The award-winning programme has a real impact on reducing greenhouse gas emissions by supporting governments to assess technology and development pathways, including with new applications. The overall objective is to support governments to deepen their domestic action on climate change and strengthen ambition under the 2015 Paris Agreement – which requires submission of nationally determined contributions (NDCs) reflecting a country’s pledge to reduce emissions and adapt to the impacts of climate change. The Calculator therefore aims is to move more people out of poverty while aligning national emission pathways with the Paris Agreement.

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