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SEAPATH Becomes LF Energy’s First Graduated Project

SEAPATH has become the first project in LF Energy’s history to reach the Graduated stage. Grid2Op and OpenGridFM have been approved to move to Incubation, while CoMPAS moves to Early Adoption. LF Energy’s project lifecycle sets milestones and requirements for projects as they develop. With its move to Graduation, SEAPATH enters the stage for projects…

FlexMeasures v1.0.0: Commercial & Industrial Sites

This post was originally published by FlexMeasures. Version v1.0.0 of FlexMeasures is a big milestone 🎉  - for one, it contains a little more than 100 PRs and adds huge abilities to schedule industry assets! Second, we decided that FlexMeasures is now mature enough to rip off the band-aid and move to major versions. See…

LF Energy Summit Europe 2026: Keynote Lineup Announced

LF Energy Summit Europe comes to Berlin on September 15 and 16, 2026, bringing together grid operators, vendors, researchers, and open source contributors building the digital foundation for energy together. Today, LF Energy is announcing the lineup of keynote speakers who will present plenary sessions focused on the themes of open source in action in…

Next-Gen Customer Data Access: How CDS is Transforming Utility Connectivity

By Daniel Roesler, CDS Customer Data Working Group (WG3) Maintainer Previously, the LF Energy Connected Data Specifications (CDS) project announced its Registration framework for revolutionizing how utilities and other central entities provide automated connectivity to the grid of the future. Today, after multiple years of collaborative development, and taking lessons learned from over a decade…

A New Era for Grid Connectivity: Announcing the CDS Registration Specifications

By Daniel Roesler, CDS Registration Working Group (WG1) Maintainer After years of collaborative development, I'm thrilled to announce the first published drafts of the LF Energy Connected Data Specifications (CDS) Registration protocols. These foundational specifications mark a critical step forward for how the energy industry establishes secure, scalable, and automated connections between central grid entities…

Welcome Stephan Gross, LF Energy’s New Community Director for Europe

We're thrilled to announce that the LF Energy team is continuing to grow! Please join us in welcoming Stephan Gross as our new Community Director, Europe. Stephan joins LF Energy from EU DSO Entity, where he served as Senior Technical Advisor focused on network planning and digitalization. Over a decade coordinating EU-funded RDI initiatives –…

PowSyBl Release Train Complete

PowSyBl has completed its latest release train, bringing together new versions across the repositories that work together within the platform. Together, these releases introduce updates spanning network modelling, load flow, sensitivity analysis, remedial action optimisation, ENTSO-E functionality, dynamic simulation, and diagrams. The release of powsybl-dependencies 2026.1.0 concludes the train. The table below provides repository and…

Recap of the 2026 PowSyBl Bootcamp: A path towards a strong community

PowSyBl (Power System Blocks) was born inside RTE, the French transmission system operator, from a very practical need: power system studies were becoming more complex, more numerous, and more tightly integrated with European processes than ever before. It led to designing a modular, extensible software library that could serve as a common foundation for many…

Announcing SEAPATH v2.0: Advancing Open Source Virtualization for Digital Substations

The energy sector must deliver affordable, reliable, safe, and clean energy. Achieving these outcomes requires digitalization. As utilities modernize the grid to handle variable generation and electrified demand, the substation is a critical focal point. Traditionally, substations rely on dedicated hardware for each function. This creates dependency on single-vendor roadmaps and limits flexibility. To address…

TSO-DSO Coordination Using OperatorFabric – Sascha Eschmann, RTE international

Event Recap: LF Energy Summit Europe 2025 TL;DR At LF Energy Summit Europe 2025, Sascha Eschmann of RTE international presented how OperatorFabric can support coordination between transmission system operators and distribution system operators. The session introduced OperatorFabric as an open source communication platform for operational processes, then demonstrated how it can help operators share messages,…

Rust Meets the Grid: Building OpenLEADR-rs for Real-World Demand Response

Event Recap: FOSDEM 2026 TL;DR At FOSDEM 2026, Dr. Maximilian Pohl and Stijn van Houwelingen presented OpenLEADR-rs, an open source Rust implementation of the OpenADR protocol. The session introduced demand response, explained how OpenADR supports communication between grid operators and customer systems, and highlighted a Dutch grid-aware charging use case focused on public EV charging…

LF Energy Welcomes New Members, Launches Three Projects, and Advances Open Source Grid Technology Across the Portfolio

LF Energy welcomes new members AZX, EcoPhi, and Empa; launches the AINETUS, URPX, and CUPID projects; advances Power Grid Model to Early Adoption; and highlights a TenneT case study demonstrating a 10x performance improvement using PowSyBl. Recent releases across EVerest, OperatorFabric, FlexMeasures, and other projects underscore continued momentum across the LF Energy ecosystem.

Flexmeasures v0.33 Release: copy assets, account sources

This article was originally published by FlexMeasures. Read the original post here: https://flexmeasures.io/v033-copy-asset-account-sources/. TL;DR: FlexMeasures v0.33 introduces asset copying, improved account-linked data sources, a dedicated data ingestion queue, more granular monitoring controls, and more than 30 additional improvements. It is the final release before the project transitions from the 0.x series to version 1.x. v0.33:…

Tracking the Open Source Energy Modelling Ecosystem: Insights for Smarter Tool Selection

Event Recap: FOSDEM 2026 TL;DR At FOSDEM 2026, Bryn Pickering presented two platforms designed to help practitioners navigate the growing ecosystem of open source energy system modelling tools. The session introduced the Open Energy Modelling Tool Tracker, which aggregates repository and community data from approximately 200 tools, and a complementary feature comparison platform designed to…

Making Our Power Grid Sweat – Daniël Kok & Anna Van Velsen, Alliander

Event Recap: LF Energy Summit Europe 2025 TL;DR At LF Energy Summit Europe 2025, Daniël Kok and Anna Van Velsen of Alliander presented how thermal models can help utilities move from static asset limits toward cyclic or dynamic ratings. The session explored how transformer temperature modeling can identify residual grid capacity, improve grid utilization, and…

OperatorFabric 4.12.0 Released with Dashboard Enhancements, Email Gateway Updates, and Dependency Upgrades

OperatorFabric 4.12.0.RELEASE is now available. TL;DR: OperatorFabric 4.12.0.RELEASE includes dashboard enhancements, email gateway updates, administration improvements, CLI enhancements, bug fixes, configuration changes, and dependency upgrades. The release also introduces several upgrade-related changes, and a migration guide is available for users upgrading from version 4.11.x. This release introduces enhancements across the dashboard, email gateway, administration interface,…

Emerging Energy Management Use Cases for Car Charging – Hauke Feiertag & Simon Seres

Event Recap: LF Energy Summit Europe 2025 TL;DR At LF Energy Summit Europe 2025, Hauke Feiertag and Simon Seres (chargebyte GmbH) presented how chargebyte is combining the open source EVerest software stack with its own IoT-based energy management platform to support solar charging, dynamic electricity tariffs, and emerging vehicle-to-home and vehicle-to-grid use cases. The session…

Real World Interoperability in EV Charging: The Tooling Stack Behind the EVerest Ecosystem

Event Recap: FOSDEM 2026 TL;DR At FOSDEM 2026, Marco Möller presented how the EVerest open source project approaches interoperability challenges in EV charging through shared software implementations, system-level testing, virtual testing environments, and operational feedback loops. The session explored how EVerest combines protocol implementations, hardware-in-the-loop testing, interoperability events, and federated testing to support increasingly complex…

The Grid Doesn’t Wait for a Requirements Document

Hugo Pfister, Manager Grid Security Applications, TenneT Netherlands TL;DR:TenneT shows that embedding software development directly within grid operations, rather than separating “business” and IT, enables faster iteration, better use of domain knowledge, and more effective tooling. Built on the open source PowSyBl framework, this model improves performance while leveraging shared infrastructure and community-driven development. The…

Grid Security at Scale: How TenneT Built a 10× Faster Analysis Platform on PowSyBl

Summary Signal: TenneT TSO B.V. achieved a 10× performance improvement in grid security analysis by building ReFlow, an orchestration platform powered by the LF Energy open source project PowSyBl. The solution reduced grid calculation times from minutes to seconds, deployed in five months, with no proprietary licensing required. Download the pdf → The challenge At…

PowSyBl Community Releases powsybl-dependencies 2026.0.0

The PowSyBl community has released powsybl-dependencies 2026.0.0, which concludes the last PowSyBl release train. PowSyBl is an open source library dedicated to electrical grid modeling and simulation. This release aligns versions across the PowSyBl ecosystem. Repository versions and links to specific release notes are provided in the table below. Repository Versions Repository Version powsybl-core 7.2.1…

LF Energy’s Battery Data Alliance and Microsoft Release Standardized Battery Dataset to Accelerate Storage Interoperability

SAN FRANCICSCO — March 30, 2026 — LF Energy, the open source foundation accelerating the energy transition, today announced the release of a new standardized battery dataset to the LF Energy Battery Data Alliance (BDA) contributed by Microsoft’s Surface Battery Development team. The dataset is aligned with the Battery Data Format (BDF), a growing open standard…

Registration Open for LF Energy Summit Europe 2026

Registration is now open for LF Energy Summit Europe 2026, taking place September 15–16. Register here! Grid operators have to deliver affordable, reliable, safe, clean energy, and they need digital infrastructure to do it. Across the sector, utilities and vendors are increasingly turning to open source as the proven way to co-develop the shared, non-competitive…

LF Energy Advances EV Charging Security with Independent EVerest Audit

LF Energy is pleased to announce the completion and public release of a comprehensive security audit of the EVerest project, conducted by Quarkslab and coordinated by the Open Source Technology Improvement Fund (OSTIF). This audit reflects LF Energy’s ongoing commitment to strengthening the security, reliability, and trustworthiness of the open source software that underpins critical…

LF Energy Announces New Members, Expanded Governing Board, and Record Event Attendance for 2025

Foundation updates point to continued growth and heightened value of open source software for energy resiliency  SAN FRANCISCO, December 18, 2025 – LF Energy, the open source foundation accelerating the energy transition, celebrates significant growth in 2025, including new members, new projects, and record-setting event attendance. These additions to the LF Energy community strengthen the…

The Value of Open Source Short-term Energy Forecasting Demonstrated Through Real-world Use Cases

Content Type: Event Recap Event: LF Energy Summit Europe 2025 Session: The Value of Open Source Short-term Energy Forecasting Demonstrinated Through Real-world Use Cases Speakers: Bart Pleiter (Alliander), Jan Maarten van Doorn (Sigholm) TL;DR — Forecasting as Critical Digital Infrastructure At LF Energy Summit Europe 2025, Bart Pleiter and Jan Maarten van Doorn showed how…

Power Grid Model DS: Simplifying Data Science for Distribution System Analysis

Summary Signal: Presented at the LF Energy Summit Europe 2025: At the Summit, Peter Salemink and Jaap Schouten from Alliander introduced Power Grid Model DS, a new open source toolkit designed to simplify data science workflows for distribution system analysis. Developed within Alliander and now contributed to the LF Energy ecosystem, the project bridges the…

PowSyBl: Grid Modeling at the Core of Europe’s Power Grid Planification and Operation

Across Europe, transmission system operators (TSOs) and regional coordination centers (RCCs) are deploying PowSyBl (Power System Blocks), an open framework governed by LF Energy, to modernize cross-border grid planning and operations. Developed collaboratively by organizations such as RTE, Artelys, and AIA, PowSyBl now underpins core capacity calculation and security analysis workflows across multiple regions. From…

Open-Source Congestion Management: Future-Proofing Solutions for the Energy Grid

TL;DR (Dateline: October 2025 – LF Energy Summit) At the 2025 LF Energy Summit, experts from Accenture and Artelys — including Jannis Kahlen (Accenture, Netherlands), Nicolas Omont (Artelys, France), Gladys Leon (Artelys España Soluciones Analíticas S.L., Spain), and Jordanno de Assuncao Paiva (Accenture, Germany) — presented the session “Open-Source Congestion Management: Future-Proofing Solutions for the…

Reimagining Substation Infrastructure: How Virtualization and SEAPATH Are Transforming RTE’s Energy Systems

At the 2025 LF Energy Summit, Bastien Desbos, Project Manager at RTE, outlined how France’s national transmission operator is pioneering digital transformation of substation infrastructure through open source virtualization technologies: SEAPATH and VIPeR. The transformation moves RTE from proprietary, monolithic PACS systems to modular, interoperable open source architectures, unlocking flexibility, resilience, and transparency across the…

Linux Foundation Energy Announces New Members and Key Advances in Open Source Infrastructure

Charting advancements in security, data, and interoperability for energy innovation AACHEN, GERMANY – LF Energy Summit Europe - 10 September, 2025 – LF Energy, the open source foundation accelerating the energy transition, welcomes five new members from leading technology and energy companies. New general members include EcoFlow, Hitachi, and Red Hat and associate members include…

National Grid Electricity Transmission and GE Vernova Collaborate on LF Energy SEAPATH to Advance Virtualized Protection and Control

Download this case study in PDF format Overview National Grid Electricity Transmission (NGET) and GE Vernova teamed up to evaluate the LF Energy SEAPATH project as a viable open source platform for deploying Virtualized Protection and Control (VPAC) in power systems. With digitalization reshaping the energy sector, the team sought to address the twin challenges…

LF Energy OpenDSM Completes Development of New Hourly Model

The LF Energy OpenDSM project is excited to announce the completion of a new hourly modeling framework for OpenEEmeter, designed to deliver faster, more accurate, and more flexible energy consumption predictions, especially for customers with solar PV. This major update was driven by a set of clear goals: Improve solar PV predictions by integrating solar…

LF Energy Power Grid Model v1.12.0 Released: Enhanced State Estimation and Improved Observability

LF Energy is pleased to announce the release of Power Grid Model v1.12.0, the latest version of our high-performance, open source library for power system analysis and simulation. This release delivers significant enhancements to state estimation, improved documentation, critical bug fixes, and a number of internal optimizations that improve performance and maintainability. 🚀 Key Highlights…

OpenSynth: beyond demand data

This article was originally posted by the Centre for Net Zero, and is republished with permission Overview OpenSynth is an open data community, originated by Centre for Net Zero (CNZ) and sourced under The Linux Foundation (LF Energy). It is designed to democratise access to AI-generated synthetic data and accelerate the decarbonisation of global energy…

LF Energy Announces Keynote Lineup for 2025 Europe Summit

  LF Energy is thrilled to unveil the first round of keynote speakers for LF Energy Summit Europe 2025, taking place September 10-11 in Aachen, Germany. This year's lineup features global leaders in energy, open source, and digital transformation who are shaping the future of power systems innovation. As the open source movement continues to…

LF Energy Showcases Open Source Innovation at FERC Technical Conference on Market and Planning Efficiency

Earlier this month, members of the LF Energy community participated in the Federal Energy Regulatory Commission’s (FERC) 2025 Technical Conference on “Increasing Real-Time and Day-Ahead Market and Planning Efficiency Through Improved Software,” held July 8-10 in Washington, DC. This influential annual event convenes leading voices from system operators, academia, national labs, software vendors, and regulators…

Audit of LF Energy PowSyBl Ensures Security of Power Systems Tool

LF Energy is pleased to announce the publication of a comprehensive security audit of the PowSyBl project, conducted by Ada Logics and coordinated by the Open Source Technology Improvement Fund (OSTIF). This audit was funded by LF Energy as part of our ongoing commitment to improving the security and resilience of the open source software…

UN Report Highlights the Role of LF Energy Projects in Accelerating the Energy Transition

  The United Nations Economic Commission for Europe (UNECE) has released a landmark report emphasizing the critical role of open source technologies and interoperability in the digital transformation of global energy systems. Titled “Fostering Interoperability and Open-Source Solutions to Accelerate the Digital Transformation of the Energy System”, the report underscores how collaborative, open source ecosystems…

FlexMeasures v0.27 Now Available, With Multi-Asset Scheduling and 2FA

This article was originally posted at FlexMeasures Version v0.27 of FlexMeasures brings a long-overdue feature: ability to schedule multiple flexible assets in one go 👯. Also, a major step towards modern cyber-security 🔐 standards: two-factor authentication. And there is even more: upload data per file, edit users, ... See the changelog for a complete list of…

Latest LF Energy PowSyBl Release Offers Enhancements to Load Flow Accuracy, Sensitivity Analysis, and Security

The LF Energy PowSyBl community has released powsybl-dependencies v2025.1.0, which concludes the last PowSyBl release train. PowSyBl is an open source library dedicated to electrical grid modeling and simulation. This new release corresponds to a new release for each of the 6 repositories constituting the PowSyBl release train, whose versions and release notes are listed in the table…

Join us at the First LF Energy Summit in North America

Since 2018, LF Energy Summit has gathered electric utilities, technology vendors, policymakers, regulators, global energy companies, researchers, and other industry stakeholders to learn about open source solutions for energy systems. These events have always taken place in Europe, but as our community has expanded and interested in open source technologies and standards to accelerate the…

OperatorFabric v4.8.0 Improves Custom Screen Features

LF Energy has announced v4.8.0 of OperatorFabric, a modular, extensible, industrial-strength, and field-tested platform for systems operators. OperatorFabric includes several features essential for electricity, water, and other utility operations. This release improves the features of custom screens amongst a variety of other new features and fixes. Full details follow below, or view the release notes…

LF Energy Summit Europe to Examine Open Source Solutions for the Energy Transition, 10-11 September in Aachen, Germany

Premier event exploring open source technologies and standards for energy systems will gather speakers from grid operators, technology vendors, government, researchers, and more SAN FRANCISCO, CA – June 18, 2025 – LF Energy, the open source foundation focused on harnessing the power of collaborative open technologies and standards to accelerate the energy transition, is pleased…

The 6th Power Grid Model Meetup – Our First Full-Day Event and a Growing Community 

On 16 May 2025, the LF Energy Power Grid Model (PGM) community gathered at Delft University of Technology for the first-ever full-day meetup. With 80+ participants joining both in person and online, the event combined hands-on technical workshops, an interactive hackathon session with four collaborative projects, and a vibrant afternoon of presentations and networking.  The…

FlexMeasures Releases v0.26, with Relaxed Scheduling and Cleaner Asset Pages

This post was originally published at FlexMeasures Version v0.26 of FlexMeasures makes the scheduler more flexible for edge situations (in which the target might be just out of reach, or not all targets can be satisfied). This is an important step in scheduling that behaves according to the priorities of each site. Also, the UI…

Power Grid Model v1.11.x Adds Support for Asymmetric Lines and Improved Power Flow Calculations

The LF Energy Power Grid Model maintainers are excited to announce the v1.11.x release series of Power Grid Model, including support for asymmetric lines and more extensive support for power flow calculations with automatic tap regulation. Highlights  Added support for asymmetric lines (see #720 and the documentation).  Added support for power flow calculations with automatic tap regulation with…

How OpenSynth Uses PyTorch to Accelerate Compute for Energy Modelling Applications

The article was originally posted at PyTorch OpenSynth has recently leveraged PyTorch to improve the experience of its users and community. OpenSynth is an open source community hosted by LF Energy that is democratising access to synthetic energy demand data. Access to smart meter data is essential to rapid and successful energy transitions. Researchers, modelers…

OperatorFabric v4.7.0 Adds Ability to Define Custom Screens

LF Energy has announced v4.7.0 of OperatorFabric, a modular, extensible, industrial-strength, and field-tested platform for systems operators. OperatorFabric includes several features essential for electricity, water, and other utility operations. This release introduces the ability to define custom screens amongst a variety of other new features and fixes. Full details follow below, or view the release…

Linux Foundation Energy Announces its First US Investor Owned Utility Member, Research into AI for Energy Systems, and Dates for LF Energy Summit

Other recent momentum includes a new open source project for power system optimization and case studies demonstrating real world impact of open source on energy systems SAN FRANCISCO, CA – April 22, 2025 – LF Energy, the open source foundation focused on harnessing the power of collaborative open technologies and standards to accelerate the energy…

Empowering the Energy Transition Through Fast and Flexible Network Simulation

This post was contributed by Jaap Schouten of Alliander The energy transition is not just a shift from fossil fuels to renewable sources; it's a revolution that demands innovation, optimisation, and collaboration. As we strive to build a sustainable future, the integration of renewable energy into our power grids becomes a critical challenge. This is…

SGT25 Session Recap: Virtualization and the Future of Substations: RTE’s R#SPACE Project in Action

As energy systems evolve in complexity and scale, Transmission System Operators (TSOs) are facing mounting pressure to modernize their infrastructure while maintaining security, reliability, and cost-efficiency. At the recent Smart Grid Tech Forum 2025, representatives from Straton Automation, RTE (France’s Transmission System Operator), and Savoir-faire Linux shared a look into how virtualization is reshaping the…

LF Energy CitrineOS Expands Support to OCPP 1.6, Enhancing EV Charging Network Management

SAN FRANCISCO, CA – April 7, 2025 – LF Energy, the open source foundation focused on harnessing the power of collaborative software and hardware technologies to accelerate the energy transition, today announced that CitrineOS, the premier open source Charging Station Management System (CSMS) software stack, has released version 1.6.0, and now supports OCPP 1.6. This…

Announcing LF Energy OpenSynth v0.0.6: New Features and Enhancements

LF Energy is excited to announce the latest release of OpenSynth, v0.0.6, bringing several powerful new features and performance improvements to the platform. This release includes significant contributions from the community and advancements that will help researchers and practitioners in the energy sector better simulate and analyze energy consumption data: 1. EnergyDiff Model: A Diffusion-Based…

Announcing LF Energy TROLIE Java Client SDK 1.0.0

LF Energy is pleased to announce the official release of the LF Energy TROLIE Java Client SDK 1.0.0, now available for download via Maven Central. This open source client SDK, licensed under Apache 2.0, enables Java applications to seamlessly interact with TROLIE servers, implementing the Transmission Ratings and Operating Limits Information Exchange (TROLIE) API. About…

The LF Energy 2024 Annual Report is Now Available

The global energy sector is undergoing a seismic shift. Electrification, digitalization, and decarbonization are reshaping how we generate, distribute, and consume power. Open source technology is at the heart of this transformation, enabling collaboration, accelerating innovation, and breaking down barriers to progress. Today, we are thrilled to announce the release of the LF Energy 2024…