How to Create a Solar Quotation: One that Converts Indian Customers

Why Most Indian Solar Proposals Fail to Close

The common failure in Indian solar proposals is not design quality or format. It is relevance. Most proposals lead with the EPC's company credentials, a generic description of how solar works, and a system specification in kilowatts. The customer reads the first section and skips to the price. They see a number with no context. They ask their neighbour or check three other EPCs. The deal stalls.

The proposals that close leads are different. They open with the customer's specific situation: this is your roof, this is how much your system will generate on it (accounting for the water tank on the east side and the parapet shadow in December), and this is what that generation means for your electricity bill in rupees, month by month for the next 25 years. The customer does not need to ask follow-up questions because the proposal anticipated them. That is the difference between a proposal that closes and one that becomes a comparison exercise.

The Content That Actually Drives Decisions

Based on how Indian homeowners and commercial decision-makers evaluate solar proposals, five content areas have a direct and measurable impact on close rate. Everything else is secondary.

1. Generation Report Based on the Actual Roof

The single most important piece of content in an Indian solar proposal is the generation forecast, and it must be calculated from the actual 3D model of the customer's roof, not from a generic per-kW estimate. An Indian residential rooftop is not a flat, obstruction-free surface. It has water tanks, satellite dishes, parapets, AC outdoor units, and sometimes trees on adjacent properties. A generation forecast that ignores these obstructions will overestimate output, and when the customer's actual generation falls short of the proposal figure, your credibility and your relationship are damaged.

The generation report should show monthly and annual generation in kilowatt-hours, the specific irradiance data for the installation location, and the panel degradation curve over the system's life. Customers who see a detailed, site-specific generation report trust the numbers. Customers who see a round estimate that looks the same regardless of their roof do not.

2. Shadow Analysis

Shadow analysis is the content element that most clearly separates EPCs who use modern design tools from those who do not. Showing the customer a visual of how shadows move across their roof through the day and across the year communicates two things simultaneously: first, that you have done technical work specific to their property, and second, that your generation numbers are trustworthy because they account for this complexity. No manual or satellite-based proposal process produces this output. It requires 3D modelling with hourly shadow simulation.

For Indian rooftops where water tanks and parapets are the primary obstructions, shadow analysis often reveals that panel placement needs to be significantly adjusted from what looks obvious on a satellite image. An EPC who catches this at the design stage and shows the customer how the layout was optimised around the obstructions builds trust that is very difficult for a competitor to undo.

3. ROI Analysis in Rupees

The ROI section should translate the generation forecast into financial outcomes that the customer can evaluate without needing to understand solar. The key figures are: current monthly electricity bill, projected monthly bill after solar (accounting for net metering export credit), annual bill saving in rupees, cumulative saving over 10, 15, and 25 years, and payback period. Where applicable, show the PM Surya Ghar subsidy amount and the net system cost after subsidy. Every figure should be in rupees, not in kilowatt-hours or percentages alone.

The 25-year savings figure is the one that tends to shift the customer's frame from "this is a big expense" to "this is an investment." For a well-sized system on a Rs 4,000 to Rs 5,000 monthly bill, lifetime savings typically run Rs 18 to Rs 22 lakh. Show that number prominently. It reframes the entire financial conversation.

4. System Design: What Is Going on the Roof and Why

The 3D layout of the roof with panels placed is the most visually striking element of a proposal and the one customers most frequently mention when explaining why they chose a particular EPC. It shows that you have done real work on their property before they have committed to anything. Include the panel model and specifications, the inverter model and capacity, the mounting structure type, and a brief note confirming ALMM compliance for panels and inverter. Customers do not understand ALMM compliance in detail, but seeing it mentioned signals that the EPC operates to regulatory standards.

5. Pricing, Subsidy, and Payment Terms

Present pricing clearly and in order: gross system cost, PM Surya Ghar central subsidy (where applicable), net cost to customer after subsidy, and payment schedule. The most common source of post-proposal confusion in the Indian residential market is the subsidy payment mechanism. Customers often assume the subsidy is deducted from their invoice. It is not. It is paid directly to the customer's bank account after commissioning, 45 to 90 days after the system is installed. Address this explicitly in the proposal to prevent the dispute before it happens.

The Delivery Channel Is Part of the Proposal

How your proposal arrives is as important as what it contains. In India, a proposal sent by email to a residential customer has a realistic open rate of 20 to 30%. The same proposal sent via WhatsApp has an open rate above 90%. Your customers live on WhatsApp. A proposal with excellent content that never gets opened achieves nothing. The workflow that works is: design the system on-site using a mobile app, generate the full proposal from the 3D model in the app, and share it directly via WhatsApp before leaving the site. The customer reads it while the conversation is still fresh.

How Reslink Generates This Content From a Phone

Reslink's mobile app builds the full proposal content with 3D design, at the site. The generation report is calculated from the actual 3D roof model with hourly irradiance data for the installation location. The shadow simulation runs across the roof's obstruction profile through the day and across the seasons. The ROI analysis converts the generation forecast into rupee savings using the customer's current DISCOM tariff rate, with a year-by-year projection to 25 years. The PM Surya Ghar subsidy is auto-calculated from the system size. All of this is generated from the phone at the site, in under ten minutes, and shared on WhatsApp before the sales rep leaves. No laptop needed. No office turnaround. No delay that costs you the deal.

Frequently Asked Questions

Q1. What content do Indian solar customers care most about in a proposal?

Research and EPC feedback consistently point to three areas: a site-specific generation report that accounts for roof obstructions, a rupee-denominated ROl analysis showing savings over the system life, and a shadow analysis that demonstrates the generation numbers are trustworthy. Customers who receive these three pieces of content make faster decisions and have fewer post-signing disputes about generation expectations.

Q2. Does a solar proposal need to be long to be convincing?

No. Length is not the metric that matters. Content relevance and accuracy are what close deals. A proposal that contains a site-specific generation report, shadow analysis, ROl breakdown in rupees, and a clear pricing section will outperform a longer proposal that lacks these elements. For residential customers, concise and visual content reads better than exhaustive technical documentation.

Q3. What is shadow analysis in a solar proposal and why does it matter?

Shadow analysis is a simulation of how shadows from roof obstructions (water tanks, parapets, AC units, adjacent structures) fall across the panel layout through the day and across seasons. It matters because obstructions that are not accounted for in the design will reduce actual generation below the proposal forecast. For Indian rooftops, shadow analysis is often the difference between a system that meets customer expectations and one that underperforms by 15 to 25%.

Q4. Should the PM Surya Ghar subsidy be shown in the proposal?

Yes, always, for residential projects. Show the gross system cost, the applicable PM Surya Ghar central subsidy amount (auto-calculated from system size), and the net cost to the customer after subsidy. Also clarify the payment mechanism: the subsidy is paid by the government directly to the customer's bank account after commissioning, not deducted from the EPC's invoice. This is the most common source of customer confusion in the post-signing stage.

Sources

• MNRE — PM Surya Ghar Muft Bijli Yojana subsidy notification, 2024 · pmsuryaghar.gov.in
• MNRE — ALMM List I and II, April 2026 · mnre.gov.in
• BIS — IS 3043: Code of Practice for Earthing, 2018