To compare solar quotes like for like, convert every quote to the same landed, compliant cost before you look at the numbers. That means adding duty, freight, insurance and clearance to each factory price, checking each quote is for the identical specification rather than a substitute, confirming certification is included and current, and normalising payment terms and delivery timing. The cheapest quote on paper is often not the cheapest once landed, because incoterms, duty and quiet specification changes move the real number more than the headline discount does.
”- Convert every quote to landed cost before comparing, factory price alone is misleading.
- Check each quote is the same specification, not a cheaper substitute.
- Normalise incoterms, CIF and FOB quotes are not comparable as they stand.
- Confirm certification is included and current on every quote.
- Payment terms and delivery timing carry real cash value, count them.
The trap in comparing quotes
You have several quotes in front of you and one is clearly cheapest. That number is usually the least reliable thing on the page.
Quotes differ in what they include, what they assume, and sometimes in what is actually being supplied. Comparing the headline figures without normalising them is how buyers end up choosing the most expensive option while believing they picked the cheapest. The fix is mechanical: bring every quote onto one basis first, then compare.
This is the stage after you have collected quotes, if you are still at that stage, see how to get quotes from multiple suppliers at once.
Step 1: Normalise everything to landed cost
Landed cost is the only number worth comparing. For each quote, build it out:
| Add to the factory price | Why it changes the ranking |
|---|---|
| Customs duty | Varies by corridor and HSN code, often decisive |
| Freight and insurance | Only included if the incoterm says so |
| Clearance and handling | Real cost, routinely forgotten |
| Certification costs | If not already included in the quote |
Duty is the big one. A cheaper factory price from a higher-duty corridor can land more expensive than a pricier alternative, which is exactly the pattern in Vietnam or China: which is cheaper. For how the duty stack builds up, see import duty on solar panels from China to India.
Step 2: Check you are comparing the same product
The second trap is subtler than cost lines. A quote can be cheaper because it is quietly for something else.
Check each quote against your bill of materials line by line:
- Exact model and wattage, not "equivalent" or "similar".
- Technology and tolerance, as specified.
- Warranty terms, product and performance, which differ more than buyers expect.
- Component lines included, does the quote cover the whole BOM or only part of it?
A quote that substitutes a lower-spec module or drops the connection-layer components is not cheaper, it is incomplete. If a supplier has substituted anything, that also tells you something about how they will behave later.
Step 3: Normalise incoterms and payment terms
Two quotes at the same number can differ significantly in what you actually pay:
Incoterm. A FOB quote leaves freight and insurance to you; a CIF quote includes them. Comparing one against the other without adjusting is comparing two different deals. Convert both to the same basis before ranking.
Payment terms. Paying 100% up front versus staged payment has a real cash cost, because money paid earlier is money unavailable for the next order. On a large purchase, better terms can outweigh a small unit discount, which is why terms are worth negotiating explicitly, see how to negotiate with solar panel suppliers.
Step 4: Filter for compliance, then decide
Before ranking anything, remove any quote whose goods cannot be used on your project. A module that is not ALMM-listed where the project requires it, or an inverter lacking MNRE approval, is not a cheap option, it is not an option. See is ALMM mandatory and MNRE approval for inverters.
Verify certification is current and names the exact model, see how to verify solar supplier certifications. Only after that filter should you rank on landed cost.
Doing all of this by hand across several quotes is slow. Posting one RFQ on VyaparCred returns quotes already on a common specification with certification confirmed, so the comparison is like for like from the start, and you can attach PO Finance to whichever you choose.
Get quotes that compare themselves
VyaparCred returns quotes against one specification with certification confirmed and landed cost visible, so the like-for-like work is already done.
Every quote priced against the same specification, so nothing is substituted.
Certification confirmed per model before a supplier can quote.
Landed, compliant cost visible, not just the factory price.