A team of researchers from Princeton University, led by Ruaridh Macdonald and including Filippo Pecci, Luca Bonaldo, Jun Wen Law, Yu Weng, Dharid Mallapragada, and Jesse Jenkins, has developed an open-source framework called MacroEnergy.jl to model and analyze complex energy systems. This tool is designed to help researchers and practitioners understand the intricacies of energy transitions across various sectors.
MacroEnergy.jl is a flexible, multi-sector capacity expansion modeling framework that can be used to study energy and industrial systems. It covers a wide range of sectors, including electricity, fuels, bioenergy, steel, chemicals, and more. The framework is built using the Julia programming language and the JuMP package, which allows it to interface with various mathematical solvers. This makes it a versatile tool for designing and analyzing energy systems.
One of the key features of MacroEnergy.jl is its modular design. The framework is organized around a small set of sector-agnostic components that can be combined into flexible graph structures. This design makes it straightforward to extend the framework to new technologies, policies, and commodities. Additionally, the framework’s companion packages support decomposition methods and other advanced techniques, allowing users to scale models across fine temporal and spatial resolutions.
The practical applications of MacroEnergy.jl for the energy sector are significant. For instance, it can be used to model the impact of new policies or technologies on the energy system. It can also be used to analyze the potential for integrating renewable energy sources into the grid or to study the implications of electrifying industrial processes. By providing a detailed and comprehensive view of the energy system, MacroEnergy.jl can help policymakers and industry leaders make informed decisions about the future of energy.
The research was published in the journal Energy Strategy Reviews, where it was peer-reviewed to ensure its scientific rigor and relevance. The open-source nature of MacroEnergy.jl means that it is freely available for use and further development by the research community. This could lead to even more sophisticated models and analyses in the future, further aiding the energy sector’s transition to a more sustainable and efficient future.
This article is based on research available at arXiv.

