PSS®E – high-performance transmission planning and analysis software

PSS®E – your high-performance transmission planning and operations software for the power industry

PSS®E is used in over

0 countries
  • and offers the distinct advantage of being one of the leading power transmission simulation and analysis tools in the world.

Product News!

PSS®E 35.3 is now available

Learn about the latest updates and features released with PSS®E 35.3 such as the new Automated Grid Code Assessment (TPL Edition) module.

Check out the release highlights

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PSS®E software

Providing an industry benchmark for simulation results

PSS®E is used by planning and operations engineers, consultants, universities, and research labs around the world. PSS®E allows you to perform a wide variety of analysis functions, including power flow, dynamics, short circuit, contingency analysis, optimal power flow, voltage stability, transient stability simulation, and much more. 

Find your application

Improve efficiency and ensure reliability

Watch Webinar | On-demand

Unlock faster decision-making with the PSS®E Advanced Linear Analysis add-on module

Watch the webinar to learn how the new PSS®E Advanced Linear Analysis add-on module unlocks advanced use cases accurately and efficiently through linearization, including: transfer limit analysis, security constrained economic dispatch (SCED), advanced contingency analysis and impact and sensitivity analysis.  

Powerful, customizable, and fully-featured software

PSS®E standard features

  • Fast and robust power flow solution for network models of up to 200,000 buses
  • Lightning-fast steady-state contingency analysis, including automatic corrective actions and remedial action system modeling
  • Full node-breaker support for detailed modeling of substation topology
  • Automated PV/QV analysis with plot generation
  • Powerful program automation and customization with fully-featured Python® API
  • Balanced and unbalanced fault analysis and contingency analysis (deterministic and probabilistic)
  • Comprehensive power flow and dynamics model library, including emerging technologies such as advanced FACTS devices and wind turbines
  • Code-based, user-written model building
  • Powerful, easy-to-use integrated plot facility
  • Graphical construction of user-defined controller models
  • Local Model Management functionalities to enable a user to seamlessly manage the various files (base case, network models, project changes, etc.) required to build new cases. 
Product News!

Optimize your workflow with the new built-in local edition of the Model Management module

No longer waste valuable time or sacrifice model accuracy by manually maintaining your various case files, projects, changes, and more. PSS®E now includes a new base functionality database that enables you centrally manage the various files and data required to build new cases. This new module enables you to (1) Easily build, store and manage all your case files directly in PSS®E, (2) Seamlessly record and track your changes, and (3) Start visualizing projects with an interactive timeline view.  


Additional Modules and Tools

Extend your PSS®E capabilities

PSS®E optional add-on modules and companion extension tools are designed based on user needs. Learn more and request a free trial below.
PSS®E updates

What's new in PSS®E?

You asked - we listened. The latest PSS®E releases introduce new features inspired by user ideas from the PSS® Ideas Portal and industry feedback.

Learn more about PSS®E 35.3
Visit the 2021 U.S. and European PSS® User Group Meeting Recording Hub in Freshdesk to watch the latest recordings for PSS®E.

Learn more about the latest PSS®E releases

User Support Page

Downloads and support

Learn more about PSS®E

Would you like to know more about our transmission planning and operations software? Here you’ll find all the latest PSS®E materials including brochures and datasheets as well as customer support information.

PSS®E in action

Customers all over the world benefit from our high-performance transmission planning and operations software for the power industry.


We are happy to answer all your questions

When it comes to power transmission planning and operations – the stakes are high and there are multiple factors to consider. Contact us to learn how PSS®E can help you address your transmission system analysis and planning needs.

Interested in implementing PSS®E?

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