Everything it models.

Satellite photo in, laid-out plant out: the tedium automated, the decisions yours.

• Draw on satellite imagery: sketch zones with their own azimuth, tilt and row spacing; panels auto-fill in real time.
• Ready-made shapes: drop a ready-made square and pull its corners over the roof; the fastest start on a simple plane.
• Point-by-point drawing: trace irregular outlines one click per corner; every vertex stays draggable afterwards.
• Magic-wand roof detection: one pipette click and the roof outline traces itself, with a sensitivity dial to fine-tune it.
• Cadastre and official buildings built in: France's official building outlines (IGN) are already on the map. Click one to make it a PV zone or a 3D building at its real height, and look up its cadastral parcel in one click for the permit file.
• KML import: every polygon in a Google Earth / GIS .kml lands at its true coordinates and fills with modules on arrival.
• Paint your strings: brush across panels to assign strings, color-coded live with automatic wiring warnings.
• Serpentine auto-stringing: the pre-sizer can also route every string across the array for you.
• One-click system sizing: module, inverter, string count and battery chosen from a handful of inputs.
• Sizing that chases profit: optimize the design for NPV or IRR, varying power and battery together.
• Real tariff calendars: utility rate plans built in, including EDF Tempo blue / white / red days.

24,000+ parts ready to search, and your existing PVsyst library opens as-is.

• 21,500 modules, 2,300 inverters: the full CEC / SAM equipment library ships built in, packed and searchable, with no subscription.
• Reads PVsyst files natively: .PAN, .OND, .BTR, .PMP and .TRF import with zero re-entry, measured curves included.
• Hand-curated originals: 117 tuned modules and 38 inverters, plus batteries, pumps, gensets, cables and combiner boxes.
• Your own parts: duplicate any part to modify it, or build your own from scratch; yours sit alongside the factory ones.
• Unique fingerprint: every part is identified by a SHA-256 hash of its specification, so renaming never changes it and duplicates never creep in.
• Traceable provenance: each part records where it came from (official bundle, curation or your own import).
• Shared with your team: custom parts sync automatically to every account in your company workspace.

The wiring, the codes and the losses, engineered in detail.

• Auto single-line diagram: generated from your layout and fully interactive. Drag strings between MPPTs and switch between IEC and IEEE symbols.
• Three electrical codes: NEC, IEC 60364 and UTE C15-712 ampacity, derates and cold-weather limits, string-sized per roof zone.
• Honest cable losses: automatic wire sizing, with the real I²R loss and voltage drop computed hour by hour.
• Cable runs off the map: run lengths estimated from where your equipment actually sits, rolled into a bill of materials.
• Deep inverter modeling: real efficiency curves, clipping, night standby, start thresholds and MPPT-window checks.
• Staging & module electronics: inverters wake one-by-one to stay efficient at low light; optimizers and microinverters are native.
• Grid-code interconnection: cos φ envelopes, curtailment setpoints, MV transformer and line losses to the delivery point.

Every site gets fresh satellite irradiance, live weather and real metered loads.

• Live PVGIS irradiance: per-site TMY and true horizon profile, no API key, with worldwide satellite coverage.
• Weather back to 1940: hourly rain, snow, temperature and wind history, plus live PM10 dust for soiling.
• Real metered consumption: Enedis load curves down to 5 minutes, pulled straight from the French grid operator.
• Inverter cloud check-ins: measured-vs-modeled with live production from Enphase, SolarEdge, APsystems and SolaX.
• Your weather files too: native EPW and TMY3 import, sub-hourly resolution included.
• Address in, site out: one street address resolves to coordinates, elevation and time zone automatically.
• Data travels with the project: fetched weather and metering series are saved inside it, so a project re-runs identically months later with no re-download.

Published models, openly validated against measured plants, catching what hourly tools average away.

• Peer-reviewed solar engine: NREL sun position with Perez and Hay-Davies transposition, cross-checked against pvlib and EnergyPlus.
• Sub-hourly to 1 minute: choose a time step from 60 minutes down to 1; spline interpolation rebuilds the fine detail from hourly data, exposing the spikes and clipping.
• Cell-deep module physics: single-diode IV with thermal mass, spectral corrections and your module's measured IAM curve.
• Living soiling & snow: dust scaled by live air quality with rain wash-off; snow that piles up, slides and melts.
• Shading, end to end: real horizon silhouette, row-to-row losses, then electrical mismatch per string and bypass path.
• Every tracker type: single and dual axis with published backtracking, cloudy-sky re-aiming and wind-stow safety.
• Glass-box loss cascade: 50 stages from sun to grid, each labelled with the data source behind it.

Batteries and EVs that earn their keep: dispatched, aged and accounted for.

• AC & DC coupling: DC-coupled banks capture the clipped surplus that AC-only designs throw away.
• Four dispatch strategies: maximize self-consumption, shave peak demand, arbitrage time-of-use or hold outage reserve.
• EV & vehicle-to-home: solar-first charging co-simulated with the home battery, at the priority you set.
• Physics-based aging: calendar and cycle wear with temperature and depth-of-discharge effects, honoring warranty floors.
• Grid accounting done right: import/export metering, peak/off-peak splits, export caps and capacity-charge peaks.
• Virtual storage plans: utility "cloud battery" subscriptions modeled with their caps, haircuts and fees.
• Any fleet, one project: combine any number of batteries and consumption sources, configured on the fly.

Floating, agrivoltaic, concentrated, off-grid: the systems most tools decline.

• Floating solar: pontoon arrays with water-cooled thermal behavior and true water-surface albedo.
• Agrivoltaics: elevated canopies over crops, with a dedicated light model for what grows underneath.
• Vertical bifacial & façades: east-west fence arrays and brise-soleil louvers, rear-side gain included.
• Concentration PV: from 1.5× troughs over silicon to ~500× triple-junction HCPV on two-axis trackers.
• Solar water pumping: from deep wells to pressurization, with pump curves, tank balance and cost per cubic meter.
• DC-grid traction: feed trolleybus, tram, metro or rail networks at 600–1500 V with real substation physics.
• Hybrid PV + diesel: off-grid and island mode with fuel burn, genset runtime and renewable fraction reported.

Roofs, terrain and trees rebuilt from IGN LiDAR: your site as it really is.

• Rebuilt from IGN LiDAR: in metropolitan France, each project's scene is built from IGN's national surveys, with LiDAR HD for roofs and trees, RGE ALTI for the ground and BD ORTHO imagery draped over it.
• Buildings with their real roofs: LOD2 reconstruction models each building's roof form and pitch, so panels sit on the actual roof planes; where none is published yet, footprints rise to their surveyed height, and the view says which you got.
• Trees as the LiDAR saw them: the canopy lets light through at the density the LiDAR measured; bake for any month's foliage, grow the trees forward in time, and clear the ground where the arrays will stand.
• Far, near and vegetation shading: the terrain-and-rooftop skyline swept from each array sets far shading, the bake measures near shading string by string, and the trees' share gets its own line in the loss cascade.
• Diffuse and rear side too: the same bake measures each array's sky-view factor for diffuse light and its rear-view factor for bifacial gain, in place of the analytic geometry.
• Built to be defended: quote the vegetation loss as measured beside its opaque-canopy upper bound, and a bake that a layout or scene change has outdated is flagged array by array.
• Auto-3D from the 2D map: the scene builds itself and stays in sync; panels snap to detected roofs and slopes, and drawn footprints rise as houses, factories or carports.
• CAD in, STL out: drop in an architect's model (glTF, FBX, OBJ, DAE, 3DS or STL) and it shades the yield; export the rebuilt site, trees and modules included, as STL for CAD or a 3D print.
• Ray-traced sun studies: watch hardware-ray-traced shadows sweep the site across the day and the year.
• Specialized systems in 3D: agrivoltaic canopies, vertical bifacial rows and louvers standing over the real crops.
• Flyover video, up to 4K: record a sun-path time-lapse from a fixed view, an orbit or a flight along a path you draw on the map, with the live stats drawn into every frame.
• A living scene: stats cards float over the arrays, and the sky replays the site's real archived weather, hour by hour.
• Streamed, even to a tablet: the renderer runs on a cloud GPU and streams to your browser, with nothing to install and no graphics card needed. You get the same picture on a tablet as on a workstation.

Beyond kWh: the numbers a lender will actually sign off on.

• Full project economics: LCOE, NPV, IRR and payback over any horizon from 1 to 100 years.
• Real tariff complexity: seasonal and peak/off-peak rates, capacity charges, surplus resale and subsidies, down to TURPE reactive-energy billing.
• Project-finance structures: loans, inflation escalators, depreciation, corporate tax and dividends for SPV / IPP modeling.
• Probabilistic yield: P50 / P75 / P90 / P99 exceedance from an IEC-based uncertainty budget tied to your satellite source.
• Lender ratios inline: DSCR and LLCR computed natively, with stress tests across CAPEX, OPEX, tariff and degradation.
• Auditable carbon balance: embodied versus avoided CO₂ and carbon payback, ready for SFDR, CSRD and GRESB.
• Lifetime realism: climate-adjusted degradation plus grid-outage and maintenance availability, year by year.

Ask "what's the best system here?" and get an answer scored the same way as your report.

• Auto-size in one click: give it a kWp range and a cost model; it finds the power that maximizes NPV or IRR and applies the winner to your project.
• Joint parts + sizing sweep: vary module, battery, inverter and power together; the cheapest feasible inverter and string topology are re-derived for every candidate.
• Scored on the real engine: each design runs through the same full simulation and financial model that produces your final report.
• Real-world cost model: economies of scale, per-inverter step costs and France's 36 / 100 / 250 / 500 kWp grid-connection tiers.
• Compare & decide: a sortable NPV / IRR / LCOE / PR / yield grid with a winner banner, per-column best-cell highlighting and baseline-Δ comparison.
• Sweeps, matrices & presets: one-click sensitivity studies on battery, tariff, loan and degradation, or a factorial matrix; drop a CSV or a catalogue part to build one.
• Batch studies in the cloud: every design scored side by side in one sortable table; the study keeps running after you close the tab.

Every project ends as something you can hand over to a client, a bank or the planning office.

• 40+ interactive charts: energy, power profiles, self-consumption, financial projections and probabilistic yield.
• Day × hour heatmaps: battery state, cell temperature, shading, curtailment and more, down to 5-minute resolution.
• Sankey loss diagram: the whole irradiance-to-grid cascade as one infographic, a crisp icon per stage.
• Branded PDF in one click: logo cover, selected charts, single-line diagram, bill of materials and 3D imagery.
• French paperwork, automated: déclaration préalable permit bundles and CRE tender dossiers, generated for you.
• Open data out: CSV, XLSX and JSON export, SVG diagrams for CAD.
• Scriptable cloud API: queue runs from your own scripts with a service token and collect the results, no browser needed.