Awesome

🌱Camunda Carbon Reductor

The Camunda Carbon Reductor allows you to time shift your processes' carbon emissions when energy is clean while still fulfilling the requested SLAs.

Technically, it's implemented as a Camunda Connector for Camunda Platform 8 and as an External Task Worker for Camunda Platform 7.

You want to contribute 🌱? Please read the Contribution Guidelines.

Table of Contents

• ✨ Features
  • Time Shifting Mode ⏭️
  • Measuring Mode 📏
• 🚀 Getting Started
  • Camunda 8
  • Camunda 7
• 📈 Reporting Carbon Reduction via Camunda Optimize
• 🏗️ Building Blocks
• 📚 Releases
• 📆 Publications
• 📨 Contact

✨Features

The Carbon Reductor Connector consists of an element-template that can be used in the process model that connects to the connector function.

Time Shifting Mode ⏭️

Using the time shifting mode (default) the Carbon Reductor Connector allows you to optimize for lower carbon emissions by moving your process execution into a timeframe with the least amount of carbon possible while still fulfilling SLAs.

The Carbon Reductor Connector defines the following inputs:

• the location where the worker are running (e.g. Germany, UK, France, USA, etc.)
• a milestone (a timestamp used to calculate the duration the process instance has been running)
• a duration for the remainder of the process (the duration the remainder needs at most)
• the maximum duration a process instance can take
• optionally, set a threshold for the minimum amount of grams of CO2 per kilowatt-hour that should be saved

Measuring Mode 📏

Note: This mode only works with the Carbon Aware SDK API at the moment.

Using the measuring mode the Carbon Reductor Connector allows you to measure the emissions in gCO2e/KWh at execution time and reports as well the emissions at the optimal time while still fulfilling your SLAs.

The same input as in the Time Shifting Mode ⏭️ is required.

🚀Getting Started

We provide the Carbon Reductor for Camunda Platform 7 and 8:

Camunda 8

To start the Camunda 8 Connector have a look at the specific README.

Camunda 7

To start the Camunda 7 External Task Worker have a look at the specific README.

📈Reporting Carbon Reduction via Camunda Optimize

Since Camunda Carbon Reductor stores the carbon savings as process variables, we have the ability to visualize our successes in Camunda Optimize.

For the CarbonHack22 we visualized the results for out example process and it looks like the following:

The exported Dashboard Definition could be found here.

🏗Building Blocks

📚Releases

The list of releases contains a detailed changelog.

We use Semantic Versioning.

The following compatibility matrix shows the officially supported Camunda versions for each release. Other combinations might also work but have not been tested.

Download of Releases:

• GitHub Artifacts

📆Publications

• 2024-04: Hehnle, Philipp; Behrendt, Maximilian; Weinbrecht, Luc; Corea, Carl (2024): Carbon-Aware Process Execution for Green Business Process Management. In: Proceedings of the 26th International Conference on Enterprise Information Systems. Angers, France, 28/04/2024 - 30/04/2024: SCITEPRESS - Science and Technology Publications, S. 659–666.
• 2023-10: Process Pattern.book The Camunda Carbon Reductor as Case Study for the Shift Workload Workflow Pattern.
• 2023-09: Camunda Marketplace
• 2023-07: The Camunda 8 Connector for Carbon-Aware Process Execution
• 2023-02: Hehnle, Philipp; Behrendt, Maximilian; Weinbrecht, Luc (20.2023): Digitale Geschäftsprozesse klimabewusst ausführen. In: Uwe Friedrichsen (Hg.): IT Spektrum. Green IT, S. 16–19.
• 2022-11: Carbon Reduced Business Process Execution
  2 Minute pitch on YouTube as part of the #CarbonHack22 hackathon
• 2022-11: Project Pitch
  Project pitch on Taikai as part of the #CarbonHack22 hackathon

If you are interested in our work and want to get to know more, feel free to reach out to us.

📨Contact

If you have any questions or ideas feel free to start a discussion or contact us via mail.

This open source project is being developed by envite consulting GmbH.