Is the ROI calculator result exact?

The ROI calculator provides an estimate using conservative assumptions. Final ROI depends on roof feasibility, shading, tariff, and system design. SOLARESS™ confirms details during site assessment.

What inputs improve ROI accuracy?

Monthly electricity bill, city tariff, roof type, roof area, and shading details improve estimate accuracy. Uploading a bill helps validate assumptions faster.

Can I use this ROI for commercial and residential projects?

Yes. The calculator works for residential, commercial, and industrial rooftop solar. System sizing and savings vary based on consumption pattern and site conditions.

How do I proceed after seeing my ROI?

Click WhatsApp or Call to share your details. SOLARESS™ reviews feasibility and provides a clear technical and financial proposal with next steps.

How fast will I get a callback?

During working hours, we typically respond within 30–60 minutes once your details are shared.

High-intent leads • Conservative estimates • Instant results

See your Solar ROI in 60 seconds

Get an estimated system size, cost, monthly/annual savings and payback. We keep assumptions conservative and validate with a free site assessment.

✔ kW sizing based on bill

✔ Payback clarity

✔ WhatsApp follow-up

Start Calculation Book Free Site Survey

What you’ll get

Recommended solar size (kW)
Estimated project investment (₹)
Monthly & annual savings (₹)
Payback period (years)
25-year savings view

Results are indicative. Final numbers depend on roof, shading and load profile.

Enter details to calculate ROI

Calculate instantly. We’ll open WhatsApp with your ROI summary so you can get an instant quote & free site survey.

Monthly electricity bill (₹) * Consumer type *

City / Location * Roof type

Name * Phone (WhatsApp) *

Installation timeline * Budget comfort (optional)

Notes (optional) Upload last bill (optional)

Tip: If you upload, we’ll ask you to share the bill on WhatsApp for fastest verification (file cannot be auto-attached from the website).

Send my estimate on WhatsApp
We’ll open WhatsApp with your ROI summary so you can get an instant quote. You can uncheck to calculate without WhatsApp.

If Send my estimate on WhatsApp is enabled, WhatsApp will open with your ROI summary. Tap Send to get your instant quote & free site survey.

No spam. We may call to validate roof/shadow assumptions.

Your estimated solar ROI

Recommended size

—

Estimated project cost

—

Subsidy (est.)

—

Net cost (est.)

—

Monthly savings

—

Annual savings

—

Payback

—

25-year savings (est.)

—

How we estimated this

Recommended size—

Benchmark capex—

Cost formula—

Subsidy rule (Residential)₹18,000/kW (cap ₹78,000)

Tariff assumption—

Bill offset target—

These are benchmark estimates for quick decision-making. Final quote is shared after site feasibility (roof, shading, structure, cable runs, approvals).

What happens next (FREE)

48-hour site survey slot (subject to location & schedule)
Shadow + feasibility check (roof, structure, cable route)
Proposal PDF: kW design, BOM, timeline, warranty
Payback report: savings, break-even, 25-year view

Commercial/Industrial: GST/ITC and final price depend on site, approvals, and BOS quality.

WhatsApp SOLARESS™ Call Now

Estimate is based on benchmark EPC pricing and typical generation/tariff assumptions. Final quotation may vary with roof type (RCC/Sheet), structure, cable runs, voltage level, approvals, BOS quality, and site constraints. Residential subsidy (if applicable) is estimated at ₹18,000 per kW capped at ₹78,000 and is subject to eligibility and policy.

Assumptions & methodology (transparent)

Solar generation assumed at ~110–130 units per kW per month (location dependent).
System sized conservatively to offset ~75–85% of your bill (to avoid over-commitment).
Tariff assumed based on typical local commercial/residential slabs.
Capex varies with roof type, structure, approvals, and BOS quality.
25-year savings include degradation, O&M, and realistic uptime.
Benchmark capex used: Residential ₹76,667/kW (3kW ≈ ₹2.30L). For Commercial/Industrial/Institution, we use band-based EPC benchmarks by system size (example: 25–50kW ≈ ₹50k/kW; 50–100kW ≈ ₹47k/kW; 100+kW ≈ ₹45k/kW). Final quote after site survey.

Explore SOLARESS™

Get a quote, book a survey, or explore city-wise EPC coverage.

Commercial & Industrial Solar

Rooftop solar EPC for factories, warehouses and businesses.

Residential Solar

Home rooftop solar pricing, ROI and site survey.

Contact & Site Survey

Book a FREE site survey and get a proposal.

City-wise EPC Coverage

Find rooftop solar EPC pages by state and city.

Call WhatsApp ROI Contact