Solar Design Software India: The Full Scorecard

TL;DR:

• Most "best solar design software India" rankings give a verdict without showing how they got there, a qualitative "best for" label with no visible methodology.
• This scorecard rates nine platforms across nine criteria, each scored 1-5, methodology published in full below the table.
• Reslink scores highest overall at 41.5/45, strongest on India regulatory depth, automated BOM generation, and mobile field usability.
• PVsyst scores separately and isn't ranked against the design platforms, it answers a different question, bankable yield simulation, not design-to-proposal workflow.
• Every score below is checked against a named source, a vendor's own published page, a third-party pricing tracker, or Reslink's own product data.

Quick Answer

Why This Matters for EPCs

Nearly every "best solar design software India" page ends the same way: a named winner, a short list of reasons, and no visible way to check the verdict against anything. That's not a ranking, it's an assertion with a table attached. An EPC choosing a platform that will run their business for the next several years deserves to see the actual criteria, not just the conclusion someone else reached from them.

Direct answer. Reslink scores 41.5 of 45 on the nine-criteria methodology below, the highest of any design platform assessed, driven by India regulatory depth, multi-segment coverage from residential through utility-scale, and mobile field design. The full scoring table, criteria definitions, and sources are published below, not summarized away. For the category decision (design software, CRM, or both) that should come before any of this, see which type of solar software you actually need first.

This piece exists to be checkable, not just quotable. Every score traces to a stated source. Disagree with one, and you can see exactly which criterion and which source to argue with, rather than arguing with a verdict that has nothing underneath it.

The Methodology, in Full

Nine criteria, each scored 1 to 5, 45 points total. A platform scoring under 24 isn't disqualified, but the gap tells you where it's weakest for an Indian workflow specifically.

1. PM Surya Ghar auto-calculation: subsidy slab computed from system size without manual entry
2. ALMM/DCR equipment flagging: compliance checked at equipment selection, not left to the proposal stage
3. DISCOM tariff library depth: number of major state DISCOMs covered with net/gross-metering thresholds built in
4. Bank-ready SLD format: single-line diagram output in the format the local DISCOM/CEIG actually accepts
5. Automated Bills of Material (BOM) generation: whether the bill of materials or electrical updates automatically from the 3D model or needs manual rebuilding when the design changes
6. Mobile field design: real design capability on a phone during a site visit, not a read-only mobile viewer
7. Multi-segment range: residential through utility-scale on one platform without switching tools
8. CAPEX/OPEX proposal generation: both financing models from the same design, not one bolted on
9. Onboarding speed: realistic time for a new designer or an EPC to ship a first real project

Sourcing rule applied to every score: a vendor's own published pricing and feature pages count as a self-reported source, flagged as such. Independent pricing trackers and Reslink's own operating data are flagged separately. No score in this table is asserted without a named source next to it.

The Full Scorecard

¹SurgePV's row is built entirely from its own published claims (self-reported, not independently verified), since we don't have the kind of direct-tested gap analysis for it that we have for the other platforms.

Worth being direct about why that matters: SurgePV's own sister company has separately published that bankable yield simulation has no accepted cloud substitute for institutional finance, a claim contradicting with SurgePV's own pages claiming IREDA/PFC acceptance for its own yield output. We're not resolving that contradiction here, just flagging that a self-reported score from a vendor with a disclosed conflict, including this row, deserves that extra evaluation.

Where Each Platform Actually Wins

Scores aren't the whole story. Here's what each platform is honestly best at, including where that isn't Reslink.

1. Reslink wins on India regulatory depth and mobile field as well as desktop-based design by the widest margin in the table, the combination that matters most for residential PM Surya Ghar volume and multi-state C&I work.
2. HelioScope remains a defensible choice for an engineer-only consultancy whose sole deliverable is a simulation report, with no proposal or CRM need at all.
3. OpenSolar is the honest free option for a solo installer at very low volume, the tradeoffs (manual PM Surya Ghar calculation, limited DISCOM support) are real and worth accepting at that scale, not worth accepting past it.
4. PVsyst, unscored here by design, remains the standard for bankable yield simulation on institutional-finance utility-scale projects, a different deliverable this table isn't built to evaluate.

What EPCs Should Do Now

Common Mistakes to Avoid

• Don't trust a ranking that shows a verdict without showing the criteria behind it.
• Don't apply a generic global comparison to an India-specific decision, PM Surya Ghar and DISCOM criteria don't appear in most global rankings at all.
• Don't treat a vendor's self-scored comparison, including a row in this one, as independently verified without checking the disclosed source.
• Don't score PVsyst against design platforms on the same axes, it answers a different question entirely.
• Don't skip the category decision (design software vs. CRM vs. both) before applying any platform-level score, that decision comes first.

Where Reslink Fits

Every criterion in this scorecard maps to something Reslink either ships natively or was built specifically to solve for Indian EPCs: PM Surya Ghar auto-calculation from the sanctioned system size, ALMM checked at equipment selection and carried into the paperwork, a DISCOM tariff library spanning the major state utilities, and mobile design that's the same capability in the field as at a desk.

A near perfect score across every criterion is worth being suspicious of on principle, which is exactly why every cell in this table traces to a named source rather than a verdict. The SurgePV row is flagged as self-reported for that same reason. OpenSolar's BOM score is flagged as lower-confidence rather than rounded up to look more certain than it is. Check any row against its source, including Reslink's.

See the full scorecard run against your own project mix → Book a demo

Frequently Asked Questions

Q1. Why does this page exist alongside your other solar software comparison pages?

This is the methodology-first version: every other comparison answers "which one," this one shows the actual scoring behind that answer, criterion by criterion, with sources. Read it alongside the platform-by-platform breakdown or the category decision guide depending on which question you're actually asking.

Q2. Why is SurgePV's score flagged differently from the others?

Because we can independently verify claims for the other platforms against gap analysis we've built and tested ourselves. For SurgePV, the only source available is its own published pages, and its own sister company has separately published a claim that sits in tension with SurgePV's own bankability claims. That's worth knowing before weighting that row the same as the others.

Q3. Can a platform's score change after this is published?

Yes, and it should be expected to. Vendor pricing, feature sets, and DISCOM coverage all change. Treat any date-stamped scorecard, from any publisher, as accurate as of that date, not as a permanent ranking.

Q4. Why isn't PVsyst just given a low score for lacking design and proposal features?

Because that would misrepresent what PVsyst is for. Scoring a bankable yield simulation tool against design-to-proposal criteria and marking it down for not doing proposals is like scoring a torque wrench against a toolbox, it answers a genuinely different question, covered on its own terms in the solar design software stack breakdown.

Q5. What's the single criterion most likely to matter for a new company trying to compete in this market?

PM Surya Ghar auto-calculation and ALMM flagging, if you're serving the residential volume most new Indian solar businesses start with. A platform weak on those two criteria will cost a new, resource-constrained team real time and real disbursement delays before any of the other seven criteria become relevant.

You May Also Like

• Best Solar Design Software in India for 2026, the full platform-by-platform breakdown this scorecard summarizes
• Best Solar Software in India: Type and Use Case, the category decision that should come before this comparison

Sources

• MNRE / PM Surya Ghar portal, subsidy and ALMM compliance requirements
• Vendor pricing and feature claims drawn from each platform's own published pages, flagged throughout as self-reported where not independently verified
• Reslink onboarding and product data, Reslink's own operating figures, not external research