How to Verify Current Rooftop Solar Cost
Rooftop-solar prices are not fixed nationally. Obtain current, itemised quotations from registered vendors and compare the equipment, installation, approvals, taxes, warranties and exclusions included in each offer. Check subsidy eligibility separately; a notified CFA amount is not the total system price.
These official sources provide the current programme pathway, notified assistance and access to registered-vendor information. The final installed price must be verified from the vendor's written quotation and the serving DISCOM's applicable process.
What You're Paying For: Cost Breakdown
Solar Panels
Usually one of the largest equipment components. Cost varies by technology, brand, efficiency and warranty.
Inverter
Cost varies by architecture, capacity, monitoring features and warranty.
Mounting Structure
Rails, clamps and fasteners must suit the roof type, structural condition and local wind requirements.
Electrical & Balance of System
Cables, protection equipment, junction boxes, earthing, lightning protection and conduit vary with the system design.
Installation & Labour
Design, civil work, mounting, wiring, testing and commissioning depend on site complexity and scope.
Permits & Approvals
DISCOM feasibility, metering, inspection and scheme paperwork depend on the applicable process.
Variables That Change the Price
Panel Technology
Module price and expected generation vary by cell technology, efficiency, bifacial design, brand and warranty. Compare current quotations and modeled site output.
Inverter Choice
String, microinverter and hybrid architectures have different equipment, monitoring, shade-management and warranty characteristics. Compare total installed cost.
Roof Type & Access
Roof type, structural condition and access can materially affect mounting and labour cost. Straightforward RCC installations may require simpler mounting than some sloped or difficult-access roofs.
Distance to Meter
Longer cable runs (DC + AC) increase material cost. Voltage drop considerations may require thicker cables.
DISCOM & Location
Net metering fees, inspection charges, and state-specific requirements vary. Remote sites may have higher logistics costs.
Installer Quality
Compare installer experience, engineering approach, component warranties, workmanship warranty, documentation, commissioning process and after-sales support.
Managed Solar: A Different Cost Model
With a managed solar arrangement, the participant may not purchase equipment directly. The applicable participation fee, allocation and responsibilities depend on the commercial structure and project agreement.
Subscription Model
- • No upfront equipment purchase
- • Monthly or annual subscription fee
- • The relationship between participation fees and bill credits depends on the project agreement, generation and applicable billing framework
- • Maintenance, insurance, monitoring included
Cost Comparison (Indicative)
- • Rooftop solar usually requires the participant to purchase or finance the installed equipment
- • Managed/managed solar models may reduce or eliminate equipment-purchase cost for the participant, depending on the commercial structure
- • Compare total participation fees with eligible bill credits over the same period
- • Responsibilities and equipment costs depend on the agreement
Note: Exact subscription pricing depends on the solar farm, your DISCOM's VNM credit rate, and contract terms. Use our calculator for personalized estimates.
Financing Options
Solar Loans (Banks/NBFCs)
Loan pricing, collateral requirements, tenure and fees vary by lender and customer profile. Compare the current annual percentage rate, processing fees, repayment schedule and prepayment terms.
PM Surya Ghar Financing
Eligible residential consumers should verify current financing provisions through the official programme information and the Lumifly subsidy guide.
Installer EMI Plans
Compare the total payable amount, fees, effective annual rate, repayment schedule and prepayment terms with other financing options.
Lease / PPA (Rooftop)
Lease / PPA arrangements typically involve a long-term agreement. Verify the contract term, tariff, escalation, exit rights, ownership provisions and other commercial conditions before committing.
Managed Solar Participation
Managed/managed solar participation may avoid equipment financing, depending on the commercial structure and agreement. Review participation fees, billing treatment, contract duration, exit terms and other customer obligations.
For current PM Surya Ghar eligibility and official financing references, see the Solar Subsidy Guide.
Hidden Costs to Watch For
Lumifly calculator assumptions
For the assumptions used in Lumifly's public savings calculator, see our Solar Calculator Methodology.
How to Evaluate a Quote
Ask for itemized breakdown
Panel brand/model, inverter brand/model, structure material, cable specs, earthing details, labour scope.
Verify certifications
BIS for panels, IEC for inverter, MNRE empanelment for installer, electrical license.
Check warranty terms
Panel performance (25 yr), product (10–12 yr), inverter (5–10 yr), workmanship (1–5 yr).
Understand generation guarantee
Some installers offer performance ratio guarantees. Get it in writing with measurement methodology.
