Bespoke engineering software
built around study workflows.
Deployed in your approved environment.

Nine Velon-built Python modules under one canonical power-system model — built by Velon for transmission system operators, the major developers running large grid-connection studies, and the hyperscale data-centre operators siting GW-scale loads. Every deployment is bespoke and built around your approved environment. Start with a trial call.

The grid became the binding constraint.

The build-out is no longer the hard part — connecting it is. Industry forecasts put roughly 4,600 GW of new renewable capacity on the world's grids between 2025 and 2030, about double the previous five years, and in 2025 renewables overtook coal in global generation for the first time. The new demand is just as concentrated: gigawatt-scale data centres and offshore wind farms now arrive at single connection points large enough to move an entire boundary. What decides whether any of it can run is the transmission system, not the technology — and that decision is a power-systems study. Where to connect, how much to build, and whether the network can host it without curtailment or instability: the Velon Suites answer each from one canonical model, fast enough to run across hundreds of candidate points.

4,600 GW
New renewables to connect · 2025–2030 (≈2× prior five years)
11%
Renewable output curtailed in parts of Europe · summer 2025
#1
Most-cited sector barrier — grid saturation & instability
45%
Renewables' projected share of world electricity by 2030

Industry figures, 2025 — IEA, Ember and a 2025 survey of 100+ energy professionals. The siting, sizing and hosting-capacity questions they raise are exactly what the suite computes.

For TSOs

Plan grids that
handle the
energy transition.

Year-round security-constrained dispatch with the grid as a first-class constraint. Reinforcement screening, stability headroom, hosting capacity — across every boundary in your network.

  • Operational planning & reinforcement
  • Boundary capability & transfer analysis
  • Stability headroom & ancillary services
For major developers

Screen GW-scale
projects in days,
not months.

Hundreds of candidate POIs ranked on curtailment risk, capture rates, stability margin and reinforcement need — under your own market scenarios. The bedrock of every IC business case.

  • Wind, solar, BESS & hybrid plant siting
  • HVDC and converter-dominated connections
  • Multi-jurisdiction portfolio screening
For hyperscale data centres

Site GW data centres
where the grid
says yes.

The same screen your TSO will run — before they run it. Curtailment exposure, voltage and stability headroom, redispatch risk and BESS sizing. Concrete inputs for site selection, ramp planning and connection negotiation.

  • Site selection across regional alternatives
  • Ramp-up & flexibility scheduling
  • Grid-impact-aware system optimisation

Specialist applications,
under one canonical model.

Each engine surfaces a family of specialist applications. They share the same data ingestion, network reduction and scenario library — and write back to the same KPI ledger.

PEA Costs & Revenues

Probabilistic Energy-storage Assessment

Decides how to size and operate a battery for maximum value. BESS arbitrage and value-stack co-optimisation across the scenario library — sizing, dispatch envelope and the calendar-cost trade-off.

BESS state-of-charge · arbitrage
  • BESS sizing + value-stack co-optimisation
  • Calendar life vs cycle revenue trade-off
  • Cross-region portfolio rollup

WhyA battery only pays back if it's sized right.

PDA Curtailment & Congestion

Probabilistic Dispatch Assessment

Proves how the system actually dispatches under network limits. Half-hourly security-constrained dispatch across the year with the grid as a first-class constraint — the bedrock of every Pillar-2 KPI.

Branch loading · P10 / P50 / P90
  • DC LF + SCED with N-1 contingencies
  • Hour-by-hour dispatch & redispatch records
  • Curtailment screening per asset

WhyValue a project on how it dispatches, not its nameplate.

PRA Curtailment & Congestion

Probabilistic Redispatch Assessment

Pins down what causes curtailment and what it costs. PTDF / LODF sensitivities localise every constraint event back to circuits, areas and connection points.

PTDF heatmap · circuit × hour
  • PTDF / LODF maps per study horizon
  • Congested-branch attribution
  • Per-POI redispatch responsibility

WhyKnow the cause and cost of curtailment, not just the number.

PBA Curtailment & Congestion

Probabilistic Boundary Assessment

Finds the most power a boundary can carry, safely. Maximum transfer across each boundary under every credible N-1, with asset-optimised dispatch of QBs and HVDCs.

Transfer · Boundary A → K
  • Boundary flow vs published capability
  • Seasonal × hourly transfer envelopes
  • Reinforcement signals + BESS need flag

WhyBoundary capacity decides what can actually connect.

PCA Curtailment & Congestion

Probabilistic Capacity Assessment

Tells you where new generation, BESS or load should connect. Per-zone headroom and locational signals computed on a single canonical model.

Hosting capacity · zonal
  • Headroom-by-zone locational signals
  • Reinforcement marginal-cost ranking
  • Generation / BESS / load siting hooks

WhyThe wrong zone pays for congestion for its whole life.

PDO Foundation

Power-system Data Orchestrator

Gives every study one trusted, traceable dataset. The foundation layer — pulls market, weather and network data into a single canonical model that every Velon engine inherits.

Sources → canonical → every engine
  • One pipeline. Every source. One canonical model
  • Provenance + QA traceability
  • Scenario reduction with high reconstruction fidelity

WhySpeed on a fragmented dataset just fails faster.

PSA System Security

Probabilistic Stability Assessment

Screens whether the system stays stable after a disturbance. Rotor-angle and transient screening — TSI, small-signal damping, critical clearing time — across the scenario library at every candidate POI.

Rotor angle · damped swing
  • Transient Stability Index (TSI) screening
  • Small-signal damping eigen-screen
  • Critical clearing time (CCT) per POI

WhyFalling inertia makes stability the connection gatekeeper.

PFA System Security

Probabilistic Frequency Assessment

Checks the grid can hold frequency after a loss. System inertia, RoCoF and frequency-response containment headroom — surfaced as a margin per scenario and POI, hour by hour.

Frequency · RoCoF envelope
  • System inertia (GVA·s) by scenario & hour
  • RoCoF screening & FRCR envelopes
  • Inertia & FFR provisioning needs

WhyBigger single connections, less inertia — frequency is harder to hold.

PVA System Security

Probabilistic Voltage Assessment

Confirms voltage holds and sizes the reactive support. PV/QV stability margin, short-circuit ratio and reactive-support siting — automated across every candidate POI in the scenario library.

PV nose-curve · V-margin
  • PV / QV curves & V-margin scoring
  • Effective SCR / MIF per POI
  • Reactive support siting recommendations

WhyWeak grids and inverters make voltage the quiet blocker.

NR Supporting · Python + DPL

Network Reduction Toolkit

Turns a full grid model into a lean, EMT-ready study model. Boundary-aware reduction with Python + DPL automation on commercial solvers — feeds PSA, PFA & PVA.

Full model → reduced study model
  • Topology simplification · Python
  • Static & dynamic equivalents
  • Validated < 1% at boundaries

WhyEMT studies are now the rule, not the exception.

How we build

Real software engineering — not slideware.

Velon writes deterministic, production-grade software: versioned, tested and auditable from input to result. The Velon Suites shown above are one example of what that produces — but the same team builds bespoke tools of any kind around the workflow you actually run.

We write the code

Power-system engineers who are also software developers — modular Python, proper version control, automated tests. Not macros, not spreadsheets.

Deterministic & auditable

The same inputs give the same result, every run. Every assumption is timestamped to a named source; every output traces back to the case that produced it.

It wraps your trusted solvers

PSCAD, PowerFactory and PSS®E stay the validated engines. Our software orchestrates them — stochastic sweeps, custom criteria, dashboards — and never locks you in.

Deployed in your environment

Velon-hosted, your cloud or fully on-premises, behind your controls. Bespoke per operator — built around your data, market design and grid code.

Not limited to the Suites. The modules above are Velon-owned software we can package and deploy for these industries — but if your problem needs a different tool, we build that too, to the same engineering standard.

How an engagement starts

Start with a trial call.

A short call to talk through the workflow you want and the question worth proving. From there we scope a focused trial on your own data — a few engineers, one defined question, a concrete deliverable in six to eight weeks. No black-box outputs, no lock-in.

  1. 01

    Scope one question

    A real slice of your network — boundary capability, curtailment exposure or a stability screen you'd otherwise build by hand.

  2. 02

    Configure to your reality

    Your grid code, market design and boundary topology, run against the commercial solvers you already license.

  3. 03

    Real numbers, reviewed together

    Joint sessions with your engineers — every result traceable to its case. You judge it on your own data.

  4. 04

    A bespoke plan

    Scale into a bespoke deployment tailored to your operation, or simply keep the deliverable. The decision is yours.

A bespoke suite for your
operating reality —
delivered with the team
that runs the studies.

Start with a trial on your own data. Six to eight weeks. A defined question. A concrete deliverable. Then decide.

Brief us on a project.

Send a one-paragraph scope — the system, the codes that apply, and the question you need answered. We typically reply within two working days.

Brief us on a project

Related: Consultancy · LumiMerse · EMT & grid-code compliance

Direct
Skip the form — email the team directly.
consulting@velonenergy.com