A Sankey chart, also known as a Sankey flowchart, is a type of flowchart that is used to visualize the movement of energy or materials between different systems or processes. The chart is named after the statistician William Edward Sankey, who developed it in the early 20th century.

Sankey charts are particularly useful for analyzing and optimizing energy consumption and resource efficiency. They can help identify areas where energy is wasted or where adjustments can be made to improve resource use. For example, a Sankey chart can be used to visualize the flow of materials through a manufacturing process, highlighting any bottlenecks or inefficiencies.

To create a Sankey chart, you will need to gather data on the inputs and outputs of the process you are examining. This data should include the amount of energy or resources used in each step of the process, as well as the flow of materials or information between different parts.

Once you have gathered this data, you can use a software program such as Sankey Diagram or Visio to create the chart. The program will provide you with a template that you can customize to fit your needs. You can then drag and drop the different inputs and outputs into the chart, using arrows to show the flow of energy or resources.

One of the benefits of using a Sankey chart is that it provides a clear and easy-to-understand visual representation of the flow of energy or resources. This can be particularly useful for communicating the results of an energy audit or resource analysis to stakeholders who may not be familiar with technical details.

In addition to analyzing energy consumption and resource efficiency, Sankey charts can also be used to visualize the flow of information or ideas in a process. For example, a Sankey chart can be used to show how ideas or products flow through an organization, highlighting any bottlenecks or areas where improvements can be made.

Overall, Sankey charts are a useful tool for streamlining processes and improving efficiency. They can be used to visualize the flow of energy, resources, or information, making it easier to identify areas where adjustments or improvements can be made.

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