Key Takeaways
- RatedPower automates utility-scale design and engineering; PVsyst is the bankable simulation standard
- RatedPower (now Enverus) automates site layout, equipment selection, and BESS design in the cloud
- PVsyst provides deeper loss modeling but has no design or automation capabilities
- Many utility developers use both tools: RatedPower for rapid design, PVsyst for bankable reports
- Neither tool generates customer proposals or covers the full project lifecycle
- SurgePV handles design through engineering for projects up to 5 MW at $1,499/yr
Quick Verdict
Our Verdict
RatedPower and PVsyst are complementary tools for utility-scale development. RatedPower automates site design and equipment optimization. PVsyst validates energy yield with bankable rigor. For large utility-scale portfolios, using both makes sense. For teams working on projects up to 5 MW who want design, simulation, proposals, and engineering in one tool, SurgePV is a more cost-effective choice at $1,499/yr.
Company Overview
RatedPower
Founded
2017 (acquired by Enverus 2022)
Headquarters
Madrid, Spain (Enverus-owned)
Focus
Automated utility-scale design + BESS
Best For
Utility-scale developers & IPPs
Pricing
Enterprise tiers (not public)
PVsyst
Founded
1992
Headquarters
Satigny, Switzerland
Focus
Bankable PV simulation
Best For
Financial due diligence & utility-scale
Pricing
~$800-1,400/yr
Feature Comparison
| Feature | RatedPower | PVsyst |
|---|---|---|
| Cloud-Based | ✓ | ✗ (Desktop) |
| Automated Site Design | ✓ (Layout optimization) | ✗ |
| Bankable Simulation | Integrated estimates | ✓ (Industry standard) |
| Detailed Loss Modeling | Standard losses | ✓ (30+ parameters) |
| P50/P90 Reports | Basic uncertainty | ✓ (Bank-accepted) |
| BESS Design | ✓ (Integrated) | ✓ (Basic) |
| Equipment Database | ✓ (Full BOP) | ✓ (Modules & inverters) |
| Terrain Analysis | ✓ (Automated) | Basic |
| Cable Routing | ✓ | ✗ |
| BOM Generation | ✓ (Detailed) | ✗ |
| Proposal Generation | ✗ | ✗ |
| Single-Line Diagrams | ✓ (Auto-generated) | ✗ |
| Tracker Modeling | ✓ | ✓ |
| Bifacial Modeling | ✓ | ✓ (Detailed) |
| Residential Projects | ✗ (Utility-scale only) | ✓ |
| Requires AutoCAD? | No | No |
Automated Design vs Deep Simulation
RatedPower: Automated Engineering
RatedPower approaches utility-scale development from the engineering side. Its cloud-based platform takes a site boundary and automates the entire preliminary engineering process: module layout, inverter selection, string configuration, cable routing, substation placement, and BESS integration.
The tool’s strength is speed. A utility-scale developer evaluating dozens of potential sites can generate preliminary designs and energy estimates for each site in minutes, comparing equipment configurations and layout options without manual CAD work. RatedPower also generates BOMs, single-line diagrams, and preliminary engineering documentation automatically.
RatedPower includes energy estimation as part of its workflow, but these estimates are not treated as bankable by most lenders. For final financing, developers typically export RatedPower’s design to PVsyst for a formal bankable report. This RatedPower-to-PVsyst handoff is a common workflow in the utility-scale industry.
PVsyst: Deep Simulation, Manual Everything Else
PVsyst excels at one thing: detailed energy yield simulation. Its 30+ loss parameters model every efficiency factor in the energy chain, from irradiance transposition through AC grid injection. The software has three decades of validation data and universal lender acceptance.
But PVsyst treats design as an input, not a capability. You define the system parameters — array size, module type, inverter configuration, tilt, orientation — and PVsyst tells you how much energy it will produce. The tool does not help you decide what those parameters should be. It has no layout optimization, no terrain analysis, no cable routing, and no automated equipment selection.
BESS & Storage Design
RatedPower BESS Integration
RatedPower built BESS design into its core workflow. The platform can model solar-plus-storage systems with automated sizing, dispatch optimization, and integration with the overall site design. For utility-scale developers evaluating hybrid solar-storage projects, RatedPower provides a more complete picture than PVsyst alone.
PVsyst Battery Modeling
PVsyst added battery storage modeling in recent versions, but it’s not the software’s strong suit. Battery simulation in PVsyst is primarily about modeling the PV system’s interaction with storage — charge/discharge cycles, grid injection profiles, and self-consumption optimization. The battery modeling is sufficient for basic storage configurations but lacks the depth needed for complex BESS dispatch strategies.
Pricing Comparison
| Cost Factor | RatedPower | PVsyst |
|---|---|---|
| Annual Cost | Enterprise tiers (not public) | ~$800-1,400/yr |
| License Type | Per-team, cloud | Per-seat, desktop |
| AutoCAD Required? | No | No |
| Design Included? | Yes (automated) | No |
| BESS Design? | Yes (integrated) | Basic |
| Bankable Reports? | Preliminary only | Yes |
| Combined Cost | $2,000-5,000+/yr (both tools) | |
RatedPower (design) + PVsyst (simulation) = $2,000-5,000+/yr per userLooking for a Better Alternative? Try SurgePV
Design, simulate, create proposals, and generate engineering documents for projects up to 5 MW — all in one cloud platform.
Start Free TrialNo credit card required · Residential to 5 MW · $1,499/yr
Pros & Cons Side-by-Side
RatedPower
Pros
Cons
PVsyst
Pros
Cons
Who Should Choose What?
| Your Situation | Choose RatedPower | Choose PVsyst |
|---|---|---|
| Rapid utility-scale site evaluation | ✓ | |
| Need bankable reports for financing | ✓ | |
| Solar + BESS hybrid design | ✓ | |
| Automated equipment selection | ✓ | |
| Residential or small commercial | ✓ | |
| Budget-constrained team | ✓ | |
| Need auto-generated BOM and SLDs | ✓ | |
| Need customer proposals | Neither (consider SurgePV) | |
| Projects under 5 MW, full workflow | Neither alone (consider SurgePV) | |
Best Alternative: SurgePV
For large utility-scale developers managing 50+ MW portfolios, the RatedPower + PVsyst combination provides specialized depth that’s hard to replicate. But most solar companies don’t operate at that scale. For teams working on residential, commercial, and large-commercial projects up to 5 MW, the cost and complexity of two enterprise tools is hard to justify.
SurgePV offers a single-platform alternative:
- Automated Design: AI-powered cloud-based layout on satellite imagery for rooftop and ground-mount projects
- Simulation: 8760-hour energy yield analysis with P50/P75/P90 confidence levels and detailed loss modeling
- Proposals: Professional web and PDF proposals with multi-currency financial modeling, cash/loan/lease/PPA
- Engineering: Native SLD generation, three-line diagrams, BOM, wire sizing, and permit packages
- BESS: Battery storage design and financial modeling integrated into the project workflow
At $1,499/yr for 3 users, SurgePV costs a fraction of the RatedPower + PVsyst stack while covering project types that RatedPower doesn’t address at all (residential and small commercial). It works globally, runs in the browser, and handles the full lifecycle from site assessment through permit submission.
Book a demo to see how SurgePV compares to your current tool stack.
Frequently Asked Questions
Is RatedPower more accurate than PVsyst?
RatedPower provides energy estimates within its automated design workflow, but PVsyst is the recognized standard for bankable simulation with deeper loss modeling. Most lenders still require a PVsyst report for final financing approval.
Can PVsyst replace RatedPower?
PVsyst does not offer automated design, layout optimization, or equipment selection, so it cannot replace RatedPower for preliminary engineering. Many developers use RatedPower for rapid site iteration and PVsyst for final bankable reports.
Does RatedPower design battery storage systems?
Yes. RatedPower includes BESS (Battery Energy Storage System) design and optimization as part of its platform. It can model solar-plus-storage configurations for utility-scale projects.
Who owns RatedPower?
RatedPower was acquired by Enverus in 2022. Enverus is an energy data analytics company. The acquisition positioned RatedPower within a broader energy data ecosystem.
What’s a better alternative to both RatedPower and PVsyst?
SurgePV offers cloud-based design, simulation, proposals, and engineering in one platform at $1,499/yr. For projects up to 5 MW, it provides the design automation of RatedPower with simulation depth approaching PVsyst, plus proposals and engineering documentation.
How much does RatedPower cost?
RatedPower uses tiered enterprise pricing based on project volume and team size. Pricing is not publicly listed. Contact RatedPower for a quote. Plans typically start higher than PVsyst’s annual subscription.
Does PVsyst do automated site layout?
No. PVsyst treats design as an input, not a capability. You manually define array size, module type, inverter configuration, tilt, and orientation. It has no layout optimization, terrain analysis, cable routing, or automated equipment selection.
Which tool is better for residential solar projects?
PVsyst supports residential through utility-scale projects. RatedPower is utility-scale only and does not handle residential or small commercial systems. For residential and commercial projects up to 5 MW, SurgePV is purpose-built with automated design and proposals.
Do lenders accept RatedPower reports for financing?
Most lenders do not treat RatedPower energy estimates as bankable. For final financing approval, developers typically export RatedPower’s design to PVsyst for a formal bankable report. The RatedPower-to-PVsyst handoff is a common utility-scale workflow.
Can I use RatedPower and PVsyst together?
Yes. Many utility-scale developers use both tools in sequence: RatedPower for rapid preliminary design, equipment selection, and BOM generation, then PVsyst for detailed energy yield simulation and bankable P50/P90 reports.
