Key Takeaways
- OpenSolar is free and built for residential installers; PVcase is an enterprise tool for utility-scale solar farms
- PVcase requires AutoCAD or Civil 3D, adding $2,000-4,000/year to the cost
- OpenSolar degrades above 500kW and has no utility-scale capabilities
- PVcase excels at terrain analysis, tracker optimization, and cable routing for large ground-mount projects
- Neither platform includes native SLD generation or permit package creation
- SurgePV bridges the gap with cloud-based design scaling from residential to 5MW
Quick Verdict
Our Verdict
OpenSolar and PVcase barely overlap. OpenSolar is a free residential design and proposal tool. PVcase is a premium AutoCAD plugin for utility-scale ground-mount solar farms. If you only do residential, OpenSolar works. If you only do 10MW+ utility projects, PVcase is the standard. But if your team works across residential, commercial, and mid-scale utility projects, neither tool covers the full range. SurgePV handles all three segments in one cloud platform.
Company Overview
OpenSolar
Founded
2016
Headquarters
Melbourne, Australia
Focus
Free solar design & proposals
Best For
Residential installers on a budget
Pricing
Free forever
PVcase
Founded
2018
Headquarters
Vilnius, Lithuania
Focus
Utility-scale solar design (AutoCAD plugin)
Best For
Utility-scale EPCs & developers
Pricing
Enterprise (custom quotes)
Feature Comparison
OpenSolar and PVcase target opposite ends of the solar market. This comparison highlights where each tool fits — and where both fall short.
| Feature | OpenSolar | PVcase |
|---|---|---|
| Platform | Cloud-based (any OS) | AutoCAD/Civil 3D plugin |
| Residential Design | ✓ AI-powered | PVcase Roof Mount (web app) |
| Commercial Design | Limited (degrades above 500kW) | ✓ |
| Utility-Scale Design | ✗ | ✓ (Core strength) |
| Terrain Modeling | ✗ | ✓ (Civil 3D integration) |
| Tracker Row Optimization | ✗ | ✓ |
| Cable Routing | ✗ | ✓ (Automated) |
| Single-Line Diagrams (SLD) | ✗ | ✗ |
| Proposal Generation | ✓ Lifestyle proposals | ✗ |
| Financial Modeling | ✓ With financing marketplace | ✗ |
| Energy Yield Simulation | Basic estimation | Via third-party integration |
| Shade Analysis | Basic satellite-based | ✓ 3D terrain-aware |
| BOM Generation | Basic | ✓ Detailed with cable lengths |
| Permit Package | ✗ | ✗ |
| Collaboration | ✓ Cloud-based team access | File-based sharing |
| Customers | 25,000+ professionals | 1,500+ companies |
Design Capabilities
OpenSolar Design Strengths
OpenSolar is built for speed on residential projects. You can pull up a satellite image, use AI auto-design to place panels, and generate a proposal in under 15 minutes. The platform supports 25,000+ professionals and has processed $10B+ in solar sales.
The tool works well for straightforward residential rooftop designs. But its limitations become clear as projects grow. Above 500kW, the platform slows down and produces unreliable results. There’s no terrain modeling, no ground-mount optimization, and no way to handle the complexities of utility-scale projects. The imagery resolution is also lower than specialized tools, which can affect panel placement accuracy on complex roofs.
PVcase Design Strengths
PVcase operates in a different category entirely. As an AutoCAD/Civil 3D plugin, it leverages Autodesk’s powerful CAD engine for utility-scale ground-mount solar farms. The platform excels at terrain analysis — grading, cut-and-fill calculations, slope optimization, and tracker row placement on uneven ground.
With 1,500+ customers including major EPCs and developers, PVcase has become the standard tool for multi-megawatt projects. Its automated cable routing and detailed BOM generation save engineering teams significant time on large projects.
The trade-off is that PVcase is expensive and complex. You need an AutoCAD or Civil 3D license ($2,000-4,000/year) on top of PVcase’s enterprise pricing. The learning curve is steep, and the software is overkill for anything under 1MW.
Proposals & Sales
OpenSolar Proposals
OpenSolar excels in the sales workflow. Its lifestyle proposals with rendered imagery help homeowners visualize their solar installation. Combined with a built-in financing marketplace, installers can present complete packages — system design, financial projections, and loan options — in a single customer-facing document.
PVcase Proposals
PVcase does not generate customer-facing proposals. It produces technical CAD drawings and engineering documentation. For utility-scale projects, the “proposal” is typically a technical bid package prepared in separate software. If your workflow requires homeowner or commercial client proposals, PVcase cannot help.
Pricing Comparison
| Cost Factor | OpenSolar | PVcase |
|---|---|---|
| Software License | Free forever | Enterprise pricing (custom) |
| AutoCAD/Civil 3D Required? | No | Yes (+$2,000-4,000/yr) |
| Per-User Cost | $0 | $5,000-10,000+/year (est.) |
| SLD/Engineering Add-on | Not available | Not available |
| Year 1 Cost (1 user) | $0 | $7,000-14,000+ |
| Target Market | Residential installers | Utility-scale EPCs |
OpenSolar caps at ~500kW · PVcase starts at 1MW+ · Neither covers the full rangeLooking for a Better Alternative? Try SurgePV
Design residential, commercial, and utility-scale projects up to 5MW — all in one cloud platform with native SLD generation.
Start Free TrialNo credit card required · No AutoCAD needed · Full feature access
Pros & Cons Side-by-Side
OpenSolar
Pros
Cons
PVcase
Pros
Cons
Who Should Choose What?
| Your Situation | Choose OpenSolar | Choose PVcase |
|---|---|---|
| Residential-only installer | ✓ | |
| Zero software budget | ✓ | |
| Utility-scale ground-mount (10MW+) | ✓ | |
| Need terrain modeling | ✓ | |
| Customer-facing proposals needed | ✓ | |
| Tracker row optimization | ✓ | |
| Quick onboarding for new hires | ✓ | |
| Already using AutoCAD | ✓ | |
| Mixed residential + commercial portfolio | ||
| Need SLD/permit packages |
Notice the last two rows are empty — neither OpenSolar nor PVcase covers mixed-scale portfolios or engineering documentation well.
Best Alternative: SurgePV
If your company handles a mix of residential, commercial, and mid-scale utility projects, neither OpenSolar nor PVcase gives you a complete workflow. OpenSolar stops at 500kW. PVcase starts at utility scale and costs a fortune. SurgePV bridges that gap.
What SurgePV adds over both:
- Cloud-based like OpenSolar, but scales to 5MW without performance issues
- No AutoCAD dependency — saves $2,000-4,000/year vs the PVcase stack
- Native SLD generation, three-line diagrams, and permit packages — neither OpenSolar nor PVcase offers this
- Professional proposals with global financial modeling and multi-currency support
- AI-powered auto-design with auto-stringing for fast residential workflows
- $1,499/year for 3 users — a fraction of PVcase’s enterprise pricing
For teams that refuse to pay PVcase prices but have outgrown OpenSolar’s limitations, SurgePV is the most practical all-in-one option.
Pro Tip
SurgePV’s free trial includes full access to commercial and utility-scale design tools. Run a test project at your typical scale and compare the results before committing to a PVcase license.
Frequently Asked Questions
Is OpenSolar or PVcase better for solar design?
They target completely different markets. OpenSolar is a free cloud tool for residential installers. PVcase is an AutoCAD/Civil 3D plugin for utility-scale solar farms. There is almost no overlap in their use cases.
Can OpenSolar handle utility-scale projects?
No. OpenSolar is designed for residential and small commercial projects. Performance degrades significantly above 500kW. For utility-scale (1MW+), you need PVcase, RatedPower, or SurgePV.
How much does PVcase cost?
PVcase uses enterprise pricing that is not publicly listed. Based on industry reports, annual licenses start around $5,000-10,000 per seat depending on modules selected. You also need an AutoCAD or Civil 3D license.
Does PVcase work without AutoCAD?
PVcase Ground Mount requires AutoCAD or Civil 3D. PVcase Roof Mount is a standalone web app. The core utility-scale product cannot function without an Autodesk license, adding $2,000-4,000/year to the total cost.
Is SurgePV a better alternative to OpenSolar and PVcase?
For teams working across residential, commercial, and utility-scale (up to 5MW), SurgePV is the most versatile option. It combines cloud-based design with simulation, proposals, and native engineering tools at $1,499/year — no AutoCAD required.
Which platform has better terrain modeling?
PVcase has the strongest terrain modeling by far, leveraging Civil 3D’s topographic tools for grading, cut-and-fill analysis, and tracker row optimization on uneven terrain. OpenSolar has no terrain modeling. SurgePV handles flat and moderately sloped sites.