Psse Latest Version May 2026

Siemens has quietly hinted at PSSE 36.0 (expected late 2025 or 2026). Rumored features include:

Until then, PSSE 35.2 is the definitive latest version for production use.

For transient stability and EMT-like studies, version 35.2 leverages NVIDIA CUDA cores. A benchmark from Siemens shows:

| Feature | PSS/E v34 | PSS/E v35 | |---------|-----------|-----------| | Max buses | ~100k | >150k | | Python API | COM-based / pssepath | Native psse.py v3.0 | | GPU acceleration | No | Yes (experimental) | | Grid-forming inverter models | Limited | Full library | | Jupyter integration | Via external kernel | Built-in launcher | | Long-term dynamics (hours) | Basic | Enhanced with automation |

As of early 2024, the latest commercial release of Siemens Power System Simulator for Engineering (PSS®E) is Version 37.

Siemens maintains a structured release cycle, typically introducing a major version every 12 to 18 months, supplemented by minor revisions (patches). PSS®E remains the industry standard for transmission system planning, offering advanced capabilities in power flow, dynamic simulation, and short-circuit analysis.

Introduction

PSS/E (Power System Simulation for Engineering) is a widely used software tool for power system analysis and simulation. Developed by Siemens, PSS/E is used by power system engineers and planners to design, operate, and optimize power systems. The latest version of PSS/E is PSS/E 35.4, which was released in 2022. In this article, we will explore the new features and enhancements in PSS/E 35.4.

What's New in PSS/E 35.4?

The latest version of PSS/E includes several new features and enhancements that improve the user experience, increase performance, and provide more accurate results. Some of the key new features and enhancements in PSS/E 35.4 include:

Key Features of PSS/E 35.4

Some of the key features of PSS/E 35.4 include:

Benefits of Upgrading to PSS/E 35.4

Upgrading to PSS/E 35.4 provides several benefits, including:

Conclusion

PSS/E 35.4 is a powerful and feature-rich tool for power system analysis and simulation. The new features and enhancements in PSS/E 35.4 provide improved performance, accuracy, and usability, making it an essential tool for power system engineers and planners. If you are currently using an earlier version of PSS/E, upgrading to PSS/E 35.4 is highly recommended.

System Requirements

The system requirements for PSS/E 35.4 are:

Getting Started with PSS/E 35.4

To get started with PSS/E 35.4, you can:

The latest major version of PSS®E (Power System Simulator for Engineering) is version 36, with the most recent sub-release being PSS®E 36.3.1 [11]. This version marks a significant shift toward modernizing the software's architecture and improving its compatibility with the latest high-performance computing environments. Quick Review of PSS®E 36 Core Enhancements

Modern Compiler Support: A major highlight of PSS®E 36.3.1 is the integration with the newer Intel® oneAPI Toolkit 2025.1.0 Fortran Compiler (IFX) [11]. This ensures that custom user models are built using the latest industry-standard tools, improving execution speed and reliability.

Version-Independent User Models: Version 36 introduced support for version-independent dynamic user model DLLs [11]. This is a massive quality-of-life improvement for engineers, as it eliminates the need to recompile custom models every time a new PSS®E version is released.

Renewable Energy Integration: The latest releases focus heavily on the "green" transition. Version 36.1 added example renewable dynamics data and updated Harmonics modules to support faster modeling of inverter-based resources (IBRs) like wind and solar [11]. Analysis & Cloud Capabilities psse latest version

Hybrid Cloud Module: Introduced in version 36.2.0, this new add-on allows users to offload heavy simulation tasks to the cloud, which is essential for managing the "overwhelming amount of output data" generated by modern planning scenarios [11, 16].

Advanced Linear Analysis: This module integrates the capabilities of the former PSS®MUST solution directly into the PSS®E interface, improving user-friendliness for complex contingency and sensitivity studies [14]. Developer Experience

Python Integration: PSS®E continues to deepen its Python support. Recent versions offer well-documented APIs and specific tools like psse_env_manager to automate the building of user-defined models [11, 34].

Automated Upgrades: The software now includes automatic model format upgrades, reducing the manual effort required when migrating legacy project data (such as older .raw or .dyr files) to the latest version [11, 22]. Pros and Cons

Industry Standard: Widely accepted by ISOs and utilities globally [10, 24].

Steep Learning Curve: Requires proficiency in Fortran and control systems for advanced modeling [20].

Stability: Version 36.0+ offers much-needed compatibility across releases [11].

High Cost: Formal training and licensing are expensive; even short courses can cost ~$3,000 [20, 35].

Scalability: Handles large-scale systems (up to 200,000 buses) with thousands of dynamic models [25]. Siemens has quietly hinted at PSSE 36

Complex Interface: Beginners may find the GUI and file management (IDV, RAW, DYR) overwhelming compared to modern alternatives [33, 34].

For academic users or those looking to test the software, Siemens offers PSS®E Xplore, a free trial version with full capabilities for systems up to 50 buses [23].