- This is a worked guide, not a live JavaScript tool — you run the numbers.
- Formula: system Wp × ₹/Wp for each module, then compare.
- On a subsidy job, subtract the PM Surya Ghar subsidy from the DCR side.
- Every ₹ figure here is illustrative — replace with live rates and the current slab.
- DCR is usually worth it when the subsidy offsets the premium.
A homeowner asks: "Why is the DCR panel more expensive, and what do I actually pay?" You need a clean way to show the premium, the subsidy, and the net cost. This guide is that method — a step-by-step worked example you fill with your own current rates. It is not a live calculator; it is the maths, laid out so you can trust it.
What this guide does
This guide gives you a repeatable method to compare DCR and non-DCR module cost and find the net project cost after subsidy. It is a static, worked example — not a live calculator that pulls prices for you. You bring the current rates; the method does the rest.
We built it this way on purpose. Per-watt prices and subsidy slabs change often, so a "live" number baked into a page would mislead you. A clear method with illustrative figures you replace is honest and stays useful.
The inputs you need
Gather five inputs before you start. Four of them are point-in-time, so get them fresh for each job.
Rates and the subsidy slab are point-in-time — pull them from a live supplier quote and the current PM Surya Ghar portal before you calculate.
The simple formula
The maths is deliberately plain. There are only three lines.
- Module cost = system size (Wp) × module rate (₹/Wp).
- DCR premium = DCR module cost − non-DCR module cost.
- Net DCR cost = DCR module cost − subsidy (for an eligible job).
Everything else is just filling these in with real numbers. The skill is not the arithmetic — it is using current, verified rates and the right subsidy slab.
Worked example, step by step
Here is the method on a sample 3 kW system. The figures are illustrative placeholders, so do not treat the letters as real prices — swap in your own.
Step 1 — module cost each way
Take the system size, 3,000 Wp. Multiply by the non-DCR rate to get the non-DCR module cost (call it ₹A). Multiply by the DCR rate to get the DCR module cost (call it ₹B). Both come from your live supplier quotes.
Step 2 — the premium
Subtract: ₹B − ₹A = ₹P, the DCR premium for this job. This is the gross extra the customer pays for domestic content, before any subsidy.
Step 3 — apply the subsidy
If the job is an eligible PM Surya Ghar residential install, subtract the current subsidy (₹S) from the DCR cost: ₹B − ₹S. Compare that net DCR cost to the non-DCR cost ₹A to see the real gap the customer feels.
DCR vs non-DCR, side by side
This table lays the two paths next to each other using the worked-example placeholders. Fill the ₹ values from your own inputs.
All values (₹A, ₹B, ₹P, ₹S) are illustrative placeholders, not real prices or a real subsidy amount. Replace each with your current supplier rate and the live PM Surya Ghar subsidy slab.
Adding the subsidy correctly
The subsidy is what makes DCR affordable on a residential job, so getting it right matters. The PM Surya Ghar subsidy is set in slabs by system size, and the slabs are revised, so always read the current amount from the portal.
Apply the subsidy only where the job is eligible. A non-subsidy C&I or open-access job does not get the offset, so the DCR premium there is felt in full — which is one reason those jobs often use non-DCR modules. For the rule, see PM Surya Ghar and DCR.
When DCR is worth it
DCR is worth the extra cost when the job needs DCR to claim a subsidy or meet a scheme rule, because the subsidy usually offsets the premium. Outside those cases, the decision is a plain cost call.
- Subsidy-eligible residential job — DCR is required and the subsidy offsets it; use DCR.
- Non-subsidy C&I / open-access job — DCR is often not required; non-DCR is usually cheaper.
- Mixed portfolio — match the module to each job, do not default to one.
For the broader rules-and-cost picture, see DCR vs non-DCR solar panels and the per-watt price breakdown.
Verify before you quote
Because every input here moves, verification is the whole game. Before any number reaches a customer, confirm the per-watt rates against live supplier quotes and the subsidy against the current PM Surya Ghar slab.
Treat the worked example as a template, not a price list. The letters ₹A, ₹B, ₹P and ₹S are placeholders. A quote built on last quarter's rate or an old subsidy slab can mislead the customer and hurt your margin.
How SuryaHub helps you show the net cost
The clearest quote shows the premium and the net price in one view. SuryaHub builds that comparison inside quotation software, using your current module rates and the subsidy, so the customer sees the DCR premium and the net cost without a spreadsheet. SuryaHub is pre-revenue; the only real pilots are Suryantra Energy and RGESPL, and all rates and subsidy figures should be verified before quoting.
Show DCR net cost in one quote
See how SuryaHub compares DCR and non-DCR with the subsidy applied.
Related guides
Frequently asked questions
How do I calculate the DCR vs non-DCR cost difference?+
To calculate the DCR versus non-DCR cost difference, multiply the system wattage by each module's per-watt rate, then subtract one from the other to get the premium. For a subsidy job, subtract the current PM Surya Ghar subsidy from the DCR side to find the net cost. Use live rates and confirm the subsidy slab, because all figures are point-in-time.
Is this DCR cost calculator a live tool?+
No, this DCR cost calculator is a worked guide, not a live tool. It shows the method and an illustrative example so you can run the numbers yourself with current rates. Live per-watt prices and subsidy slabs change often, so plug in your own confirmed figures rather than relying on the example values shown here.
Does the PM Surya Ghar subsidy offset the DCR premium?+
On an eligible PM Surya Ghar residential job, the subsidy can offset much of the DCR premium, which is why DCR modules are required there. Whether it fully covers the premium depends on the current subsidy slab and the system size. Confirm the live subsidy amount on the PM Surya Ghar portal before you quote a net cost.
What inputs do I need for the DCR cost comparison?+
For the DCR cost comparison you need the system size in watts, a current non-DCR per-watt rate, a current DCR per-watt rate, the PM Surya Ghar subsidy for that system size, and whether the job is subsidy-eligible. Pull the rates from a live supplier quote and the subsidy from the current portal slab, since all are point-in-time.
When is a DCR module worth the extra cost?+
A DCR module is worth the extra cost when the job needs DCR to claim a subsidy or meet a scheme rule, because the subsidy usually offsets the premium. For a non-subsidy C&I or open-access job, a non-DCR module is often cheaper and allowed. Confirm whether the scheme requires DCR before deciding.
How does SuryaHub help compare DCR and non-DCR cost?+
SuryaHub builds the net-cost comparison inside a quote, using your current module rates and the subsidy, so the customer sees the DCR premium and the net price clearly. SuryaHub is pre-revenue; the only real pilots are Suryantra Energy and RGESPL, and all rates and subsidy figures should be verified before quoting.
Sources & references
Subsidy slabs come from the PM Surya Ghar portal and module prices from the market. Both are point-in-time — confirm the live figures before you put them in a quote.
- National Portal for PM Surya Ghar ↗
The current residential subsidy slabs that offset the DCR premium.
- Ministry of New & Renewable Energy (MNRE) ↗
DCR policy and where domestic content is mandatory.
- NISE DCR portal ↗
The portal that certifies DCR modules.
Written by the SuryaHub team · reviewed against MNRE, NISE & PM Surya Ghar sources · updated 20 June 2026.
Method: This is a static worked guide, not a live calculator. All ₹ figures are illustrative placeholders and re-checked every 30 days; prices and subsidy slabs must be confirmed against live quotes and the current portal. SuryaHub is pre-revenue; only Suryantra Energy and RGESPL are real pilots.
Change log: 20 Jun 2026 — first published.