A life cycle assessment (LCA) of green hydrogen is a tool to quantify the environmental impact of green hydrogen production from start to finish. It considers the environmental consequences of every stage of the process, including: resource extraction, production, storage, delivery, and end-use application.
LCAs can help to understand the total performance and development of a system. They can also help to identify the environmental burdens associated with different production pathways.
Here are some things to consider when performing an LCA of green hydrogen:
Production methods
Different production methods have different environmental implications. For example, fossil fuel-based methods like SMR result in higher carbon emissions. Clean hydrogen production methods that use water as a source include water electrolysis, thermochemical water splitting, and water splitting through photoelectrochemical cells.
Energy production pathways
The energy production pathway used to generate the electricity for green hydrogen production can have a significant impact on the environmental performance.
Social impacts
The extraction and processing of raw materials can have a significant social impact.
Green hydrogen is hydrogen produced by using renewable electricity to electrolyze water. It has the potential to help limit global warming and reduce fossil fuel dependence.
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