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.

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

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
PDA Curtailment & Congestion

Probabilistic Dispatch Assessment

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
PRA Curtailment & Congestion

Probabilistic Redispatch Assessment

Localises the cause and cost of every constraint event — PTDF / LODF sensitivities mapping curtailment back to circuits, areas and connection points.

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

Probabilistic Boundary Assessment

Maximum megawatts you can push across each boundary — under every credible N-1. 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
PCA Curtailment & Congestion

Probabilistic Capacity Assessment

Where should the next block of generation, BESS or load actually sit? Per-zone headroom and locational signals on a single canonical model.

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

Power-system Data Orchestrator

The foundation layer. Pulls market, weather and network data into a single canonical model — the same dataset every Velon engine inherits.

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

Probabilistic Stability Assessment

Rotor-angle / transient stability 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
PFA System Security

Probabilistic Frequency Assessment

System inertia, RoCoF and frequency-response containment headroom — surfaced as a stability 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
PVA System Security

Probabilistic Voltage Assessment

PV/QV-based voltage 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
NR Supporting · Python + DPL

Network Reduction Toolkit

Collapses a full transmission model to a lean, boundary-aware study model — 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
01 · Built by Velon

Our team developed every line.

The Velon Suites are Velon-owned, modular software — not an off-the-shelf product. Power-system engineers and Python developers in the same studio — not a stitch of partner ware.

02 · Bespoke per operator

Customised to your reality.

Every deployment is shaped to the operator's market design, grid code and boundary topology. The modules stay the same. The configuration is yours.

03 · Trial first

See it on your network first.

We work with TSOs and major developers to run a focused trial on their data — before any commitment. Six to eight weeks. Real numbers. Real engineers in the loop.

We don't replace
the commercial solvers —
we orchestrate them.

PSCAD, PowerFactory and PSS®E stay the trusted engines. The Velon Suites sit on top as a Python orchestration layer — stochastic sweeps, custom criteria and GIS visualisation the solvers alone don't deliver. The pattern is the same across every Velon engine.

Tier 01 · What the operator sees

Velon engineering applications.

Python apps — configurable, stochastic, standalone. Each engine is a Tier-1 app sitting over one canonical data layer. Adding a new study question = adding a new app, not rebuilding the stack.

PDO PDA PRA PBA PCA PEA PSA PFA PVA + Future apps
orchestrates
Tier 02 · The value layer

Python orchestration · analytics · visualisation.

Stochastic sweeps over 8,760 hours. Custom criteria (TSI, RoCoF, FRCR, V-margin, CCT). Tens of thousands of simulations aggregated to distributions, not tables. GIS heatmaps and interactive dashboards — not slideware. One canonical model behind all of it.

Canonical model Stochastic sweeps Custom criteria GIS visualisation Auditable runs
drives
Tier 03 · Same physics · industry-standard

Commercial solver engines — the trusted ones.

Velon engines drive the solvers the operator already validates, audits and trusts. Results are reproducible inside the operator's own toolchain — the suite never replaces them, never locks you in.

DIgSILENT PowerFactory PSCAD / EMTDC PSS®E + engine APIs

One product.
Three engines.
Nine modules.

Click any module below to see what it does, what it ingests, and what each Velon Suite delivers from it. The architecture below is the runtime topology — the same shape across every jurisdiction the suites are deployed in.

3 engines · 9 applications · the runtime topology renders the same 8 architecture modules across every jurisdiction.

M8 — OPERATOR INTERFACE & VISUALISATION LAYER Maps · POI bubbles · ranked tables · scenario controls · CSV / XLSX / PDF export M7 — KPI AGGREGATION & POI RANKING Multi-criteria scoring · operator-weighted · veto rules M4 — CURTAILMENT & CONGESTION Pillar 2 · curtailment engine Where does the grid bind — and what clears it? M6 — SYSTEM SECURITY Pillar 3 · PSA · PFA · PVA Will it stay stable — angle, frequency, voltage? M5 — COSTS & REVENUES Pillar 1 · market & capture engine Is the site investable — capture, LCOE, revenue? ↑ NETWORK MODELS · SCENARIOS · CONFIG M2 — REDUCED NETWORK MODELS Per-network · boundary busbars AC for security · DC for dispatch Validated vs published flows M3 — SCENARIO LIBRARY Monte-Carlo · year-round hourly Weather · demand · prices · outages Themes: high-wind · low-demand · stress M1 — DATA INGESTION & CURATION Operator data · open-source feeds Market prices · weather · constraints Provenance + QA traceability M0 — OPERATOR PROFILE & CONFIG Market design · grid code · boundaries Config & boundaries management Per operator · per study DATA & MODEL LIBRARY · CROSS-CUTTING LAYER CLICK ANY MODULE →

The same source of truth —
built for engineers, not slideware.

Every Velon Suite ships with an operator-facing workbench: maps, ranked POI tables, scenario controls, per-POI dossiers, and one-click export to the formats your IC review actually consumes.

The value · data-centre developer

Find the GW-scale site the grid will actually say yes to — curtailment exposure, voltage headroom and connection cost ranked before you commit to land or a queue position.

9 POIsscreened in minutes
£1.4 bnsiting cost spread
Y+5forward horizon

Try the suite
on your network —
before any commitment.

We work with TSOs and major developers to run a focused trial on their own data. Six to eight weeks. A few engineers, a defined question, a concrete deliverable. Then we decide together what a bespoke deployment looks like.

01
Discovery call

Scope the
one question.

We pick one Pillar-2 or Pillar-3 question on a slice of your network. Boundary capability, curtailment exposure, stability screening — something you'd otherwise build by hand.

Week 0 · 1 hour
02
Configure

Bespoke
configuration.

Your jurisdiction profile, your boundary topology, your grid code. The suite is configured against your canonical datasets and the commercial solvers you already license.

Weeks 1–2 · Velon-side
03
Run & review

Real numbers.
Real engineers.

Joint review sessions with your engineering team — every result traced back to its scenario, its case, its solver run. No black-box outputs.

Weeks 3–6 · Joint
04
Demo & decide together

A live demo, then a
bespoke plan.

You see the suite running on your own data, and we scope the bespoke solution from there — scale into a deployment tailored to your operation, or close the trial with the artefact you have. No lock-in, no licence trap.

Week 8 · Demo & outcome

Built by Velon,
tuned to your operator
reality.

The same Velon team writes the engines, configures the deployment and runs the studies alongside your engineers. Four commitments we make to every operator we work with.

01

Designed for the operator's reality

Per-operator profiles encode market design, grid code and boundary topology — the same code answers a North-American question, a European question and a Gulf question with the same engineering rigour.

02

Orchestrating the commercial solvers operators already trust

The Velon Suites wrap PSCAD, PowerFactory and PSS®E — never replacing them. Every result is reproducible inside the operator's own toolchain.

03

Auditable from data to decision

Every assumption is timestamped to a named source. Every KPI in the dashboard traces back to the simulation case that produced it.

04

Built to evolve with the grid

New scenarios, new modules and new criteria slot into the canonical data model without reworking the engines. Future-ready by construction.

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.