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 5-year investment scenario in tools like PLEXOS or OSeMOSYS. 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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The Object-Oriented "MultiCircuit" Database Stop overwriting your inputs. VeraGrid 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.
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 | VeraGrid | PLEXOS / PSR | Siemens PSS/E | DIgSILENT PowerFactory | PyPSA |
|---|---|---|---|---|---|
| Strategic & Investment Planning | |||||
| Long-Term Capacity Expansion Planning | Yes | Yes | No | No | Yes |
| Cost-Benefit & ROI Scenarios | Yes | Yes | No | No | Manual calculation |
| Grid-Constrained Economics (Nodal) | Yes (Native) | No (Blind to physics) | N/A | N/A | Requires manual coupling |
| Multi-Commodity / Sector Coupling (Gas, H2) | Yes | Yes | No | No | Yes |
| Out-of-the-box Global Datasets | Open-source data | Yes (Sells data packs) | No | No | Open-source data |
| Detailed Electrical Grid Simulations | |||||
| Power Flow | Yes (Advanced) | No (Linear only) | Yes | Yes | Not all controls |
| AC/DC Optimal Power Flow (OPF) | Yes (Advanced) | Linear only | Yes but no time series | Yes but no time series | Linear only |
| Contingency Analysis (N-1, N-1-1) | Yes | No | Yes | Yes | Code-heavy |
| Transient Stability (RMS / Dynamics) | Yes | No | Yes | Yes | No |
| State Estimation & Observability | Yes | No | Yes | Yes | No |
| Short-Circuit / Fault Calculations | Yes (Phase & Seq) | No | Yes | Yes | No |
| Protection Coordination & Relays | In development | No | Yes (CAPE) | Yes | No |
| Electromagnetic Transients (EMT) | In development | No | Add-on modules | Yes | No |
| Planning Workflow, UX & Interoperability | |||||
| Unified Macro-to-Micro Workflow | Yes (17x Faster) | No (Siloed) | No (Siloed) | Yes (Limited) | No (Data eng. needed) |
| User Interface / UX | Modern GUI & Visuals | Dated | Legacy table-based | Yes (Highly complex) | No |
| Native Interoperability (CGMES, RAW, UCTE) | Yes | No | Yes (Native to RAW) | Yes | No |
| Pricing Model / Accessibility | |||||
| Pricing Model / Accessibility | Free / Open-Source | High license costs | High legacy costs | High legacy costs | Free / Open-source |
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.
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, national TSOs like REE, and backed by consultancies like eRoots, 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.
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.
Time-Series
Capture chronological system evolution by assigning profiles for demand, generation, and line rating.
Stochastic Flow
Incorporate uncertainty from renewables into a probabilistic view of grid behavior and violation risk.
Power Flow
Robust studies at scale using Levenberg-Marquardt, Newton-Raphson, and Holomorphic Embedding solvers.
Optimal Power Flow
Balance technical feasibility with economic efficiency using AC, DC, and security-constrained formulations.
Short-Circuits
Calculations for three-phase, line-to-line, and single-phase faults for traditional and modern converter-based generation.
PTDF
Quantify how injections and withdrawals impact line flows to identify grid sensitivities and resolve bottlenecks.
OTDF
Predict post-contingency flows and spot potential overloads with scalable N-1 and N-k security studies.
Cascading failure
Simulate islanding and blackout progression step-by-step to design grids that withstand critical events.
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.
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.