How to Send a Solar Proposal on WhatsApp

Your customer just asked for a quote. You're standing in their parking lot, phone in hand. You could say "I'll email it tonight", or you could send a branded, subsidy-ready PDF proposal on WhatsApp before you've driven out of their colony. The second option closes 3x more deals.

WhatsApp is India's default business communication channel. According to Business Standard, India has over 500 million WhatsApp users, and solar customers in Tier 2 and Tier 3 cities overwhelmingly prefer WhatsApp over email for business communication. Sending a solar proposal on email means it might get read on Tuesday. Sending it on WhatsApp means it gets opened in 90 seconds.

This guide walks through exactly how to send a solar proposal on WhatsApp, with the specific steps in QuickEstimate, and how read tracking changes your follow-up strategy.

Why WhatsApp is the right channel for solar proposals in India

In the Indian solar sales context, WhatsApp has three advantages over email that directly affect close rates.

First: open rates. WhatsApp messages are opened within 3 minutes for 90% of recipients, versus 20–30% open rates for business email within the first hour. A solar proposal that isn't opened is a deal that doesn't close.

Second: channel familiarity. Your customer uses WhatsApp to communicate with their family, their CA, and their local kirana, it's a trusted channel. A proposal in WhatsApp has the same trust weight as a message from a known contact. An email from an unfamiliar domain lands in Promotions.

Third: immediacy triggers action. When a proposal arrives on WhatsApp while the customer is still thinking about solar (right after the site survey), they're 4–5x more likely to share it with their spouse or family decision-maker. That same proposal sent by email the next evening arrives when attention is somewhere else entirely.

The 3-Tap Proposal Delivery System, the named framework

The 3-Tap Proposal Delivery System is how QuickEstimate users consistently deliver proposals on WhatsApp within 60 seconds of a site survey. It has three components:

Tap 1, Generate: Enter the customer name, site address, and system size (kW). QuickEstimate auto-calculates the PM Surya Ghar subsidy, estimated generation, savings per year, and 5-year ROI. The proposal PDF is generated in the app with your logo, your contact number, and your company branding pre-filled.

Tap 2, Brand: Preview the proposal. If your quotation pricing needs adjusting (e.g., you're using a specific panel brand or inverter model), update the system configuration. Add a personal note, a single line like "Based on your 200 sq ft south-facing terrace, this 3 kW system will cover your entire household consumption", in the cover message.

Tap 3, Send with tracking: Hit "Send via WhatsApp." The app opens WhatsApp with the PDF attached and the cover message pre-filled. After you tap Send in WhatsApp, the proposal's status is tracked in QuickEstimate: Sent → Delivered → Read. When the customer opens the PDF, you get a notification, and that's your cue to follow up.

1. 1

   Generate, Create the proposal in the QuickEstimate app

   Open QuickEstimate → tap "New Proposal" → enter customer name, mobile number, site address, and proposed system size in kW. The app auto-fills the PM Surya Ghar subsidy, generation estimate, annual savings, and net system cost. Takes 30–45 seconds.

2. 2

   Brand, Verify your logo, company name, and cover message

   Preview the proposal PDF. Your company logo, contact number, and brand colors are already applied from your QuickEstimate profile settings. Edit the WhatsApp cover message to personalise it with a specific reference to the customer's site ("your 250 sq ft terrace in Bopal," "your Mehsana factory rooftop").

3. 3

   Send with tracking, Deliver on WhatsApp and monitor status

   Tap "Send via WhatsApp." The app opens WhatsApp with the proposal PDF and cover message pre-filled for the customer's number. After sending, return to QuickEstimate, the lead's timeline now shows "Proposal Sent." When the customer opens the PDF, the status updates to "Read" and you get a push notification.

What makes a WhatsApp solar proposal different from an email proposal

The format and content of a proposal optimised for WhatsApp differs from one designed for email in three specific ways.

Shorter cover message. On WhatsApp, the preview text before the customer opens the PDF is your first impression. Keep your WhatsApp message to 3–4 lines maximum: one line of context ("Here's the solar proposal for your Vatva residence"), one line with the headline number ("3 kW system, ₹1.07 lakh after subsidy, saves ₹28,000/year"), and one call to action ("Open the PDF and let me know if you'd like to adjust the system size.").

PDF, not a link. India's mobile internet is patchy in many areas. A PDF file saved in the customer's WhatsApp storage is always accessible, even when they're checking it at 11pm with poor signal. A link to an online proposal requires an active connection and doesn't feel as permanent or professional. In QuickEstimate, the proposal always goes as a PDF attachment.

Subsidy front and centre. For solar proposals in India, the PM Surya Ghar subsidy amount is the headline number. Your customer will forward your proposal to their family members on WhatsApp, and those family members will look at the total cost after subsidy first, annual savings second, and everything else third. A proposal that buries the subsidy in page 3 doesn't share well.

For detailed guidance on what to put inside the proposal PDF itself, see what to include in a solar quote, solar proposal best practices, and how to present ROI in a solar proposal. According to Mercom India, India added over 13 GW of rooftop solar capacity in 2024-25, the EPCs driving that growth are differentiated by speed of proposal delivery and clarity of subsidy math. According to a CEEW (Council on Energy, Environment and Water) consumer survey, 68% of residential solar buyers in India said the subsidy amount was the primary factor in their purchase decision, making the subsidy headline the most critical element of any WhatsApp solar proposal.

Read tracking, how it changes your follow-up strategy

Read tracking is the feature that converts a proposal tool into a sales intelligence tool. Here's how it works in QuickEstimate and why it matters.

When you send a proposal via WhatsApp from QuickEstimate, the app logs:

• Sent: The proposal was sent from your WhatsApp.
• Delivered: WhatsApp confirmed delivery to the customer's device.
• Read: The customer opened the PDF (tracked via a unique identifier embedded in the proposal link, where applicable, or via WhatsApp's document read confirmation).

Most importantly: QuickEstimate sends you a push notification when the proposal moves from "Delivered" to "Read." That notification is your signal to follow up, not in 3 days as part of a generic cadence, but right now, while the proposal is fresh in the customer's mind.

The follow-up strategy that pairs best with read tracking is covered in detail in the solar proposal follow-up cadence guide. The short version: follow up within 60 minutes of the "Read" notification. A message like "Hi [Name], just checking you received the solar proposal, any questions on the system or the PM Surya Ghar subsidy?" converts at 3–4x the rate of a cold follow-up 3 days later.

Common mistakes when sending proposals on WhatsApp

Most EPCs who send proposals on WhatsApp make one of these five errors. Each one costs deals.

Mistake 1: Sending at the wrong time of day. WhatsApp proposals sent between 7pm and 9pm get opened within 10 minutes. Proposals sent at 11am get opened during the evening commute. If you're sending from the site survey, send immediately. If you're in the office, send between 6pm and 8pm.

Mistake 2: No personalisation in the cover message. "Please find attached the solar proposal" is worse than saying nothing at all. Use the customer's name, their city, and one specific detail from the site survey ("your 300 sq ft roof in Naranpura"). It signals that this isn't a mass blast.

Mistake 3: A generic company name on the proposal. If the customer receives a PDF branded "Proposal.pdf" with no logo and generic contact details, they can't tell you apart from the three other EPCs who sent a quote. Your logo, your company name, and your mobile number on the cover page is what makes it memorable.

Mistake 4: Forgetting the subsidy number. The PM Surya Ghar subsidy calculation is the reason customers call you back. A proposal that shows only the gross cost without the subsidy deduction looks expensive. Always show: gross cost → subsidy → net cost → annual savings → payback period. See how to calculate PM Surya Ghar subsidy for the correct calculation.

Mistake 5: Not following up when the proposal is read. This is the most expensive mistake. If you sent the proposal 3 days ago and haven't followed up, the customer has either decided to wait, compared you with a competitor, or simply forgotten. Read tracking solves this, but only if you act on the notification.

How to set up QuickEstimate for WhatsApp proposal sending

Before you can use the 3-Tap Proposal Delivery System, your QuickEstimate account needs one-time setup:

Step 1, Brand profile: In QuickEstimate settings, upload your company logo (minimum 400x400px, PNG or JPG), enter your company name, address, GST number, and the mobile number you want displayed on proposals. This takes 5 minutes once.

Step 2, Pricing configuration: Set your default panel price per watt, inverter cost, installation charge, and any state-specific items (like Gujarat-specific structural costs for sloped roofs). Once configured, every new proposal auto-calculates based on these defaults. You can override individual proposals.

Step 3, PM Surya Ghar subsidy settings: Verify that QuickEstimate has your state's current PM Surya Ghar subsidy slabs loaded. The central subsidy is ₹30,000 for 1 kW, ₹60,000 for 2 kW, and ₹78,000 for 3+ kW (per MNRE 2024 operational guidelines). If your state has an additional top-up subsidy, configure it in the state subsidy settings. The PM Surya Ghar National Portal maintains the latest approved subsidy figures, cross-check if you haven't updated your settings in the past 6 months.

Step 4, WhatsApp integration: In QuickEstimate, link your WhatsApp number so the app can pre-fill proposals directly into WhatsApp without requiring you to copy-paste anything. The integration uses the WhatsApp share API, no API key required for standard individual sending.

Sending proposals as a team, visibility and coordination

For EPCs with multiple sales reps, Rohit's 12-person team in Surat, for example, WhatsApp proposal sending creates a visibility problem: which rep sent which proposal, when was it read, and who is following up? Without a system, two reps call the same customer, or no one calls because each assumes the other is handling it.

QuickEstimate's team setup solves this. Every proposal sent by a rep is logged in their lead's timeline. The owner (Rohit) can see across all reps: how many proposals sent today, which have been read, which have been open for 72 hours with no follow-up scheduled. The Team Management view in QuickEstimate shows this dashboard without requiring Rohit to chase each rep for status updates.

For solo installers like Imran in Aurangabad, the same feature serves as a personal task list: proposals sent today, read status, and follow-up reminders all in one screen. No spreadsheet, no sticky notes.

For guidance on what a compelling proposal PDF should contain before you send it, see solar proposal example for India and the full guide on writing a solar proposal.

How QuickEstimate fits the WhatsApp proposal workflow

The WhatsApp integration in QuickEstimate is the feature that ties the proposal generation and delivery together into the 3-Tap Proposal Delivery System described above. Here's how the full feature set maps to the workflow:

• Proposal Generator, Generate a branded, subsidy-ready PDF proposal in 60 seconds from any Android device. PM Surya Ghar subsidy, generation estimate, savings, and ROI are all auto-calculated.
• WhatsApp Integration, Send the proposal PDF directly into WhatsApp with a pre-filled cover message. Track Delivered and Read status in the QuickEstimate lead timeline with push notifications on Read.
• Lead Management, Every proposal sent, read, and followed up is logged in the lead's timeline. Your pipeline shows which leads have open proposals, which have been read with no follow-up, and which are ready to close.
• Team Management, For multi-rep EPCs, see which rep sent which proposal, track team-wide read rates, and identify reps who are sending proposals but not following up on read notifications.

What to do this week, for your EPC

1. Send your next proposal on WhatsApp before you leave the site survey. Don't send it from the office that evening. Fill in the system size, subsidy, and cover message while you're still with the customer. The 60-second turnaround is what creates the "wow" moment that makes your EPC memorable.

2. Set up the read-notification follow-up habit. When QuickEstimate notifies you that a proposal was read, follow up within 60 minutes. Set this as a non-negotiable process for your entire sales team. The proposal follow-up cadence guide has exact message templates for each follow-up stage.

3. Audit your last 10 proposals for subsidy accuracy. The PM Surya Ghar subsidy slabs changed in 2024. If your proposals still show old numbers, correct them in QuickEstimate's settings and resend to any customer who hasn't responded yet. A corrected proposal often re-opens a stalled conversation. Try QuickEstimate free for 10 proposals/month with no card required.

Frequently asked questions

How do I send a solar proposal on WhatsApp?

Generate the proposal PDF in a tool like QuickEstimate that supports PM Surya Ghar subsidy auto-calculation, then tap "Send via WhatsApp." The app pre-fills the customer's number, attaches the PDF, and adds a personalised cover message. The full sequence, generate, preview, send, takes under 60 seconds when you have the customer's name, mobile number, and proposed system size.

Does WhatsApp support PDF proposals?

Yes. WhatsApp allows PDF file attachments up to 100 MB. A typical branded solar proposal PDF is 500 KB–2 MB, well within the limit. The PDF appears as a document in the conversation, the customer taps to open it in their phone's PDF viewer. No app installation required on the customer's side.

What should I write in the WhatsApp message when sending a solar proposal?

Keep it to 3–4 lines: (1) contextual reference, "Here's the solar proposal for your [location] home/business"; (2) headline number, "3 kW system at ₹1.07 lakh after PM Surya Ghar subsidy, saves ~₹19,800/year"; (3) a call to action, "Let me know if you want to adjust the system size or have any questions." Avoid long paragraphs, they don't scan well on mobile.

What is read tracking in solar proposals?

Read tracking tells you when a customer has opened your proposal. In QuickEstimate, the proposal's status moves from Sent → Delivered → Read, and you receive a push notification when the customer opens the PDF. This is your cue to follow up while the proposal is fresh, follow-ups within 60 minutes of the Read event convert at significantly higher rates than follow-ups made on a fixed schedule.

Can I track if a WhatsApp solar proposal was opened?

Yes, with the right tool. QuickEstimate tracks proposal read status via WhatsApp's document delivery and read confirmation, and logs the status in the lead's timeline. You receive a push notification when the proposal moves to Read. This is different from a plain WhatsApp PDF send, which gives you WhatsApp's standard double-blue tick but doesn't integrate with your sales pipeline.

How is a WhatsApp proposal different from an email proposal?

The format, not the content, is the key difference. WhatsApp proposals should have a short, personalised cover message (3–4 lines), a PDF with the subsidy and savings headline in the first section, and be sent immediately after the site survey while customer interest is high. Email proposals allow longer intros but have much lower open rates (20–30% vs 90%+ for WhatsApp in India) and arrive when customer attention is elsewhere.

How do I make my solar proposal look professional on WhatsApp?

Use a proposal generator that applies your company logo, branding, and contact details to every PDF. The proposal should show: consumer name, site address, system size, panel and inverter brands, PM Surya Ghar subsidy deduction, net cost, annual generation, annual bill savings, and payback period, all on a branded template. See the solar proposal best practices guide for the full checklist.