Easy PV
Midsummer
Design & simulation · Web
Comparison
22 differences · 11 identical
The differences that matter most
They differ most on free tier. Archelios Pro publishes Not publicly disclosed; RatedPower (pvDesign) publishes Not publicly disclosed.
We do not name a winner. Below are 22 differences drawn from the same sourced dataset that powers both product pages.
Verified against the vendor’s own pages.
Both use the same pricing model, so the figures below are directly comparable.
Archelios Pro
Not publicly disclosed
Quote only
RatedPower (pvDesign)
Not publicly disclosed
Quote only
Prices are shown exactly as each vendor writes them and are never converted between currencies.
22 differences, ordered by how much they are likely to matter — pricing transparency first, then capabilities the vendor explicitly confirms or denies.
| Capability | Archelios Pro | RatedPower (pvDesign) |
|---|---|---|
| Solar design & simulation | ||
| Named weather / irradiance data source | advanced Verified | — Not found |
| 3D roof and obstruction model | Advanced Verified | — Could not read |
| Automatic module layout | Basic Vendor claim | Advanced Verified |
| Loss and uncertainty modelling (P50/P90) | Advanced Verified | Basic Vendor claim |
| Manual layout editing | — Could not read | — Verified |
| On-site capture (drone / photogrammetry) | — Not found | — Could not read |
| Remote site capture from imagery | Basic Verified | Advanced Verified |
| Shading analysis | — Could not read | Basic Vendor claim |
| Single-line diagram | — Not found | Basic Vendor claim |
| String sizing / stringing | Advanced Verified | — Could not read |
| Proposals & sales | ||
| Proposal document generation | — Not found | Advanced Verified |
| E-signature | — Could not read | Yes Verified |
| Estimation & financial modelling | ||
| PPA / lease / TPO modelling | Not offered Verified | — Could not read |
| AI & automation | ||
| AI agent / copilot | — Could not read | vendor-claimed Verified |
| Integrations & extensibility | ||
| Named, documented integrations | 2 Verified | 4 Verified |
| Public API | Advanced Verified | Basic Vendor claim |
| Platform & deployment | ||
| Web application | — Could not read | Yes Verified |
| Pricing & commercial terms | ||
| Free tier | Not offered Verified | demo-only Verified |
| Market fit & availability | ||
| C&I | Yes Verified | No Verified |
| Geographic availability | FR; EU; MA; DE; CN; global Verified | global Verified |
| Residential | Yes Verified | No Verified |
| Target buyer | — Could not read | enterprise-epc; developer Verified |
Scroll the table sideways to see both products. The capability column stays in place.
Framed as requirements, not a verdict. Both descriptions come from the same data.
European design offices and installers who want a properly priced, properly documented simulation tool with real CAD and BIM interoperability, and whose projects sort cleanly into power bands. It is not for teams that need a CRM, a lead pipeline or a polished sales proposal — the output is a technical PDF and an economic analysis, not a homeowner-facing document — and the tier boundaries are hard: at 101 kWp you are on a €1,490 licence, not a €990 one. [✓ https://www.trace-software.com/en/our-solutions/archelios-pro-free-free-pv-design-software/ · 2026-09-25]
Full Archelios Pro profileFor developers, IPPs, EPCs and engineering firms who need to iterate hundreds of utility-scale layouts and carry them through to interconnection and off-taker-ready detailed engineering. Not for anyone who needs a published price (all three tiers are "Talk to sales"), not for rooftop or residential, and not for buyers who need site prospecting outside the specific geographies where Enverus PRISM International data is licensed.
Full RatedPower (pvDesign) profileMidsummer
Design & simulation · Web
SolarEdge Technologies
Design & simulation · Web
National Laboratory of the Rockies (NLR) — formerly the National Renewable Energy Laboratory (NREL)
Design & simulation · Desktop
They differ most on free tier. In total we recorded 22 verified differences and 11 points where they are the same.
Both are priced quote only. Archelios Pro: Not publicly disclosed. RatedPower (pvDesign): Not publicly disclosed.
We do not name a winner. Both are described from the same verified data, and which suits you depends on your requirements — the differences above are the facts; the choice is yours.
Last verified
Vendors change pricing and features without notice. Check the vendor’s own page before deciding.
This comparison is generated from the feature database, not written by hand. A pair is only published when the data holds at least five stateable differences — which is why 281 candidate pairs were refused. How comparisons are built