Welcome to OpenPMU

The Open Source Phasor Measurement Unit

OpenPMU - The Open Source Phasor Measurement Unit

OpenPMU is a pioneering open-source project dedicated to developing Phasor Measurement Units (PMUs) for power system analysis and research. With a modular, collaborative design, OpenPMU allows contributors and researchers worldwide to advance power system measurements with precision, flexibility, and accessibility.

Our mission is to provide the power systems community with a foundational, textbook example of a PMU—complete with tools for real-time data acquisition, waveform simulation, and accurate synchronisation. Through community contributions and collaborative research, we continually improve and expand OpenPMU's capabilities.

This website provides information on the project, devices and technologies produced, and publications.

We are an international team and welcome new contributions, ideas and engagement with the project. Please get in touch with us via email or message us on Facebook.

Get started:

- Read our Publications
- Study the Fundamentals of PMU Technology
- Explore our GitHub

OpenPMU is not merely a hardware device, it is platform and a reference design for best practice in PMU technology. OpenPMU treats the process of measurement separately from the development of the instrument.

OpenPMU makes use of the best bits of IEEE Standard C37.118, but strives to push the frontiers of measurement technology.

Key advantages of OpenPMU:

- Modular design
- Python code base
- Time Synchronised Sampled Values (TSSV)
- Communicate using IEEE / IEC / JSON / MQTT
- Cyber Security Gateways
- Raspberry Pi / Beaglebone Black solutions
- Support for IEC 61850-9-2
- Affordable cost

If you share our ideals and want to come explore the next frontier of power system measurement technology, please get in touch and join our team!

To keep up to date with OpenPMU, join our Facebook page.