Stop Translating and Exporting.
Start Planning and Simulating.
VeraGrid is the only all-in-one, open-source platform that handles the entire grid modeling process natively, from high-level aggregated energy scenarios to the maximum level of electrical detail.
The "Split Workflow" and the Iteration Trap.
Historically, grid planners have been forced into a fragmented workflow. You build a multiple-year investment scenario in tools like PLEXOS or the PSR suite. To test if that scenario is electrically feasible, you must manually export, de-group, and map that data into legacy electrical simulators like PSS/E or PowerFactory.
But what happens when the physical grid cannot support the planned outcome? You fall into the Iteration Trap. You have to change your economic assumptions and repeat the entire manual export/import cycle. Worse, legacy simulators rely on fragile flat tables that overwrite your input data with simulation results, destroying the replicability of your original grid state and making your studies impossible to audit.
A Unified Engine Built for Total Replicability.
VeraGrid collapses the silos between energy planning and technical grid validation. By integrating both steps natively, we eliminate tedious data migrations and ensure an immediate fit between long-term investment planning and electrical feasibility.
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Robust database Stop overwriting your inputs. VeraGrid's MultiCircuit database strictly separates infrastructure inputs from simulation results, allowing for robust time-series modeling and total, auditable replicability.
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Full Interoperability. Bring Your Data. Import and export CGMES (v2.4.15 & v3.0), PSS/E (RAW/RAWX), and JSON. Seamlessly ingest PowerFactory DGS, MATPOWER, UCTE, Pandapower, and PyPSA formats.
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100% Open Source (MPLv2) Zero license cost. Reallocate your software budget directly toward grid investments, while maintaining full enterprise capabilities.
Take Your Data With You.
Migrating models and data shouldn't be a bottleneck. VeraGrid is built to be universally interoperable out of the box.
We natively read and write CGMES (v2.4.15 and v3.0), PSS/E (RAW/RAWX), and JSON. We also seamlessly import PowerFactory DGS, MATPOWER, UCTE, Pandapower, and PyPSA formats. Import your existing network, build a digital twin map, and start simulating in minutes.
Built for TSOs. Backed by Industry Experts.
VeraGrid is free, but it is not an academic prototype. It was developed from the ground up to solve real commercial and utility planning problems.
Developed by grid experts from CITCEA-UPC, and continuously maintained by our development team, VeraGrid is already deployed in real-world TSO environments. Its algorithms are benchmarked against the industry’s top commercial tools.
Need guaranteed reliability? We offer professional enterprise support, training subscriptions, and fast-track data migration services to ensure seamless integration into your TSO or DSO workflow.
The Only End-to-End Workflow, Without Data Migration.
VeraGrid is the only platform that covers the full planning-to-simulation workflow natively, so you can move from investment scenarios to electrical validation without losing fidelity or reformatting data.
| Feature | Integrated | Energy | Grid | ||
|---|---|---|---|---|---|
| VeraGrid | PLEXOS / PSR | PyPSA | PSS®E | PowerFactory | |
| ENERGY PLANNING AND INVESTMENTS | |||||
| Expansion Planning | Yes | Yes | Yes | No | No |
| Resource Adequacy & Stochastic Analysis | Yes | Yes | Limited | No | Limited |
| Cost-Benefit & ROI Scenarios | Yes | Yes | Requires custom workflow | No | No |
| Market Modeling & Dispatch | Yes | Yes | Yes | Yes | Yes |
| Time-Series Simulation | Yes | Yes | Yes | Limited | Yes |
| Multi-Commodity Modeling | Yes | Yes | Yes | No | No |
| Built-in Datasets | Open-source datasets | Yes | Open-source datasets | No | No |
| GRID ANALYSIS | |||||
| Power Flow | Yes | No | Limited | Yes | Yes |
| Contingency Analysis | Yes | No | Limited | Yes | Yes |
| Short-Circuit Analysis | Yes | No | No | Yes | Yes |
| Small-Signal Stability Analysis | Yes | No | No | No | Yes |
| Transient Stability / RMS | Yes | No | No | Yes | Yes |
| Protection Analysis | In development | No | No | Yes | Yes |
| EMT Simulation | In development | No | No | No | Yes |
| WORKFLOW, UX & INTEROPERABILITY | |||||
| Unified Macro-to-Micro Workflow | Yes | No | No | No | No |
| User Interface / UX | Yes | Dated | No | Table Based | Complex |
| Native Interoperability (CGMES, RAW, UCTE) | Yes | No | Requires Custom Parsing | Yes | Yes |
| Pricing Model / Accessibility | Free / Open-Source | High | Free / Open-source | High legacy costs | High legacy costs |
Disclaimer note: All vendors and logos mentioned are registered trademarks of their respective companies, and are not endorsed by, or affiliated with eRoots Analytics or Veragrid.
A Legacy of Innovation
From open-source beginnings to industry-leading performance.
2016, VeraGrid Beginnings
Our CTO Santiago Peñate publishes the first version of VeraGrid, a power systems software package written in Python with both powerful algorithms and visualization capabilities.
2022, eRoots Constitution
eRoots is formed to solve some of the most pressing challenges in the power systems field, including short-circuits in modern grids. Software becomes our cornerstone.
2025, Software Expansion
Enriching steady-state capabilities while adding feature-rich dynamic and stability features to meet the demands of the modern energy transition.
Every Grid Insight You Need
VeraGrid offers a comprehensive suite of analytical tools for every stage of power system planning and operation.
Investment Optimisation
Use data-driven methodologies to find the Pareto front of solutions considering cost and technical excellence.
Dispatch & OPF
Balance economic efficiency and network feasibility with AC, DC, security-constrained, and fluid-aware optimal dispatch formulations.
Time-Series
Run energy and grid simulations across any time horizon with detailed control over temporal resolution, profiles, and scenario definitions.
Resource Adequacy
Quantify system adequacy under uncertainty using Monte Carlo reliability analysis, including LOLE, LOLF, ENS, and the impact of generator, battery, and network outages.
Fluid Modeling
Model sector-coupled energy systems by co-optimizing electrical networks alongside hydro, gas, or other fluid flow infrastructures.
Clustering
Reduce large time-series datasets into representative operating conditions using clustering techniques that preserve system behavior while accelerating studies.
Power Flow
Study your network under steady-state conditions with many solver options and detailed AC/DC grid modeling for accurate, scalable analysis.
Contingency Analysis
Predict post-contingency conditions and identify potential overloads with scalable N-1 and N-k security assessments.
Short Circuit
Calculate three-phase, line-to-line, and single-phase fault behavior for both conventional systems and converter-dominated grids.
Hosting Capacity
Quantify the additional generation, storage, or demand that can be connected at each location without violating network operating limits.
Small Signal
Reveal weakly damped oscillations and control interactions before they become problems, with modal analysis tailored to modern power systems.
Dynamic Simulation
Capture how the system responds over time to faults, setpoint changes, and controller actions with detailed dynamic simulations.
Common Questions
What file formats can VeraGrid import and export?
VeraGrid acts as a universal translator. It natively reads and writes CGMES, PSS/E raw/rawx, and JSON. It also imports MATPOWER, UCTE, PowerFactory DGS, and PyPSA.
How does your database differ from what we use now?
Legacy software relies on flat tables, which means simulation results overwrite your input data, destroying the original grid state. VeraGrid’s object-oriented architecture strictly separates inputs from results, allowing you to run complex studies with total replicability. It also includes the Time dimension embedded into the data structure, producing time series with total replicability.
Is it really free? Will we get adequate support?
Yes, the core engine is open-source under the commercial-friendly MPLv2 license (no vendor lock-in). For organizations that require it, we offer dedicated enterprise support, custom plugin development, and training.
Ready to escape the iteration trap?
Join the modern era of power system planning. Download VeraGrid, import your existing PSS/E or CGMES files, and unify your workflow today.