PVFARM and PVX both promise better grading outcomes for utility-scale solar. Both cite real project data. Both position terrain analysis as a core differentiator. That is where the similarities end.
The fundamental difference is architecture. PVFARM is a cloud platform. PVX is an AutoCAD extension. That single fact shapes every downstream tradeoff: where your data lives, how your team collaborates, what outputs you can hand to construction, and how deeply terrain analysis integrates into your existing workflow.
This comparison lays out both tools honestly so you can decide which architecture fits your engineering process.
The architectural split
PVFARM runs entirely in a browser. You upload your terrain data, run layouts and grading in their cloud engine, and export results. The advantage is obvious: no installation, instant access from any device, fast onboarding for new team members.
PVX runs inside AutoCAD. You work on your actual topo surface in the same environment where your civil and electrical drawings already live. No data leaves your machine unless you choose to share it through PVX.View, the browser-based viewer for stakeholders who do not need CAD access.
Neither architecture is inherently better. But they have very different implications for engineering teams doing detailed design work on complex terrain.
Where PVFARM is strong
Credit where it is due. PVFARM has built a modern platform with real capabilities:
- Speed to first layout. Cloud tools excel at rapid feasibility. Upload terrain, get a layout, see preliminary grading volumes. For early-stage screening across multiple sites, this workflow is fast.
- Accessibility. No AutoCAD license required. No local compute dependency. Any team member with a browser can access the project.
- Grading optimization. PVFARM has invested heavily in grading messaging, citing NREL research and claiming 20-30% earthwork reduction. Their dedicated “Civil” product pages show they take terrain seriously.
- Modern UI. Purpose-built interface designed for solar workflows, not adapted from a general CAD environment.
If your team does not use AutoCAD and needs a standalone platform for preliminary solar design with grading awareness, PVFARM is a legitimate option.
Where the cloud model breaks down
The limitations of cloud-only design become visible when a project moves past feasibility into detailed engineering.
No native CAD integration. Every EPC and engineering firm doing detailed design works in AutoCAD or Civil 3D. A cloud tool creates a parallel workflow. Terrain data gets exported from CAD, uploaded to the cloud platform, processed, then exported back. Every transfer is a potential data loss point. Every round trip adds time.
Output format gap. Construction teams need DWG/DXF files for IFC (Issued for Construction) documentation. Cloud platforms typically export PDFs, CSVs, or proprietary formats. Converting cloud outputs into construction-ready CAD drawings requires manual work, and manual work introduces errors.
Terrain resolution limits. Cloud processing must balance server cost against accuracy. Uploading a full-resolution topo surface (millions of points from drone surveys or LiDAR) to a browser-based engine introduces compression, simplification, or processing queues. Working natively in AutoCAD means your terrain model stays at full resolution throughout design.
Data sovereignty. Your site topography, soil reports, and project layouts live on someone else’s servers. For some organizations and some geographies, this is a nonstarter.
Where PVX goes deeper
PVX is not trying to be a cloud platform. It is an extension that adds terrain-aware solar design directly into AutoCAD.
Soil hardness classification. PVX maps soil types across the entire site surface before any grading decisions are made. On one project, 44% of the terrain was classified as “very hard” rock (concrete/asphalt grade). The grading strategy for rock and the grading strategy for soil are fundamentally different. Knowing the subsurface composition changes which approach saves money and which approach is even physically possible.
Multi-scenario grading comparison. PVX compares grading approaches side by side in the same session. On a single project, three approaches were evaluated:
| Approach | Method | Cut volume | Cost |
|---|---|---|---|
| Full smoothing | Traditional | 118,225 m3 | $1,062,481 |
| Pile-adaptive | Adapt terrain to pile | 48,109 m3 | $438,046 |
| Table splitting + pile-adaptive | Split tables, then adapt | 34,819 m3 | $335,376 |
The difference between the conventional approach and the optimized approach: $727K on one project. 70% less earthwork volume. Same panels, same site.
Construction-ready outputs. Because PVX runs inside AutoCAD, its outputs are native DWG files. Pile coordinates, grading contours, cross-sections, cable routes. These go directly into IFC documentation without conversion. The construction team gets the same file the design team produced.
Cable topology optimization. PVX auto-generates cable routes for three topologies (Line, U-shape, Leapfrog) and calculates voltage drop per string, not per average. On a 130 MWp project, the cabling topology choice alone represented a $430K cost difference.
Comparison table
| Capability | PVFARM | PVX |
|---|---|---|
| Architecture | Cloud (browser) | AutoCAD extension |
| AutoCAD integration | None | Native |
| Web/browser access | Full platform | PVX.View (viewer + sharing) |
| Grading optimization | Yes (cloud engine) | Yes (on full-res topo surface) |
| Soil hardness mapping | Not documented | Yes (per-cell classification) |
| Multi-scenario grading comparison | Limited | Side-by-side in same session |
| Output format | Cloud exports (PDF, CSV) | Native DWG/DXF |
| IFC-ready drawings | Requires conversion | Direct output |
| Cable topology analysis | Basic routing | 3 topologies + per-string voltage drop |
| Terrain resolution | Server-constrained | Full local resolution |
| Data location | Cloud servers | Your machine |
| Installation required | No | Yes (AutoCAD + PVX extension) |
| Onboarding speed | Fast | Requires AutoCAD familiarity |
| Collaboration | Built-in (cloud-native) | PVX.View for stakeholders, CAD for engineers |
Which tool is right for you
PVFARM makes sense if:
- Your team does not use AutoCAD for detailed design
- You need fast feasibility screening across many sites
- Cloud accessibility matters more than CAD-native depth
- Your projects are on relatively flat terrain where grading is straightforward
PVX makes sense if:
- Your engineering team already works in AutoCAD or Civil 3D
- You do detailed design on complex or sloped terrain
- Construction-ready DWG outputs are a requirement, not a nice-to-have
- You need to compare multiple grading strategies before committing
- Soil composition varies across the site and affects grading decisions
- Your projects go through formal IFC documentation
The honest answer for most utility-scale EPC firms doing detailed engineering: you already have AutoCAD. Your civil team works in AutoCAD. Your IFC packages are DWG files. Adding terrain-aware solar design inside that environment removes a data transfer step that cloud tools cannot avoid.
For teams evaluating early-stage feasibility without CAD infrastructure, PVFARM’s cloud model offers a lower barrier to entry. But when the project moves to detailed design and construction documentation, the outputs need to be in CAD.
PVX gives you both: PVX.Cad for the engineering depth, PVX.View for the stakeholder accessibility. Design where your engineers work. Share where your stakeholders are.
PVX has designed 3.8 TWp of utility-scale solar across 40+ countries. Project data referenced in this article comes from published engineering analyses by the PVX technical team.