WhatsApp for solar energy: from ad lead to signed contract

Qualification by electricity bill

The first message sets the tone for the rest. And in solar there’s a shortcut that qualifies and engages at the same time: asking for the electricity bill.

The sequence that works has three short messages:

1. Immediate response with value request. "Hi, João! This is Ana from [company]. To show you how much you’d save, send me a photo of your electricity bill — in five minutes I’ll get back to you with the number."

2. Two feasibility questions. While waiting for the bill: is the property owned or rented, and is it a house or a business? Both answers eliminate a large part of unviable leads without seeming like an interrogation.

3. Return with concrete number. Average consumption, estimated system value, monthly savings, and payback time. This message separates the integrator who works from the one who just sent a catalog.

With this, each lead falls into one of four categories: hot (owned property, bill above R$ 400, wants to resolve this month), warm (viable but no urgency), cold (low bill, doesn’t pay for itself today), and unviable (rented without authorization, unsuitable roof, no real interest).

This classification allows for different treatment. Classic mistake: giving the same treatment to 180 leads and thus poorly serving the 30 who would close.

From simulation to technical visit

Between simulation and proposal there is a stage most treat poorly: the technical visit. It’s often sold as a formality ("I need to come measure") but is actually the highest conversion moment in the funnel — it’s when a professional enters the client’s home and answers the questions they don’t type.

Three precautions turn the visit into a closing:

Schedule with date and name. "Our technician Rafael can come Thursday at 10h or Friday at 15h" closes; "let’s schedule a visit" doesn’t close. Always two options, never an open question.

Confirm 24 hours before. A missed technical visit costs half a technician’s daily wage and delays the cycle by a week.

Ask for the presence of the decision-maker. Said naturally: "it’s good that the person who decides with you is present, because questions about financing usually come up." A visit made only with someone who doesn’t decide generates a whole second round of explanation by message.

The proposal and the financing conversation

A solar proposal sent as a loose PDF, without context, becomes a price comparison. The sending must be accompanied by a message that anchors the value:

"Here is the proposal for your 6.6 kWp system. Three important points: your bill drops from R$ 780 to about R$ 90 per month, the investment pays off in 3 years and 8 months, and the module warranty is 25 years. Any questions, call me and I’ll explain line by line."

Then comes the real objection, which is almost never "it’s expensive" — it’s "I don’t have that amount now." The financing conversation needs to be offered proactively, not passively:

• Compare the installment with the current electricity bill. An installment of R$ 620 against a bill of R$ 780 means the client saves from the first month — and this phrase closes more contracts than any discount.
• Offer two or three term options, with the installment amount for each.
• Explain what’s needed for approval and how long it takes, so the client doesn’t give up out of fear of bureaucracy.

Recording which option the client showed interest in allows you to resume the conversation later without starting over — and resuming at the right point is what differentiates follow-up from pestering.

The follow-up that closes in 45 days

Here is the money most leave on the table. With a cycle of 30 to 60 days, a proposal sent and not answered in three days is not a "no" — it’s the middle of the process. Still, it’s common for the integrator to make two contacts and stop.

The follow-up that works after sending the proposal:

1. Day 1: confirmation of receipt and offer to explain by a ten-minute call.
2. Day 3: one specific anticipated question — usually about warranty, maintenance, or what happens on cloudy days.
3. Day 7: social proof from the neighborhood or region. "We installed a similar system two blocks from you, can I send you the photo and their bill result?"
4. Day 14: concrete condition with real deadline — equipment availability, installation schedule for the month, current financing condition.
5. Day 25: direct and straightforward question: "Does it make sense to proceed now or would you prefer I contact you in a few months?"
6. Day 45: closing with an open door, moving the lead to the quarterly follow-up.

Six contacts, each with its own reason. What makes this possible is not the salesperson’s discipline — it’s having, somewhere, the list of who received a proposal and didn’t respond, with the date of each step. Without this record, follow-up depends on memory, and memory loses to volume every month.

Post-sale until approval

Once the contract is signed, the phase that generates referrals — or complaints — begins. It’s 30 to 90 days between signing and the system generating, with stages the client doesn’t understand or control. Silence during this period is read as neglect.

A simple follow-up solves this, with a message at each milestone: contract signed and project started; project sent to utility; equipment en route; installation scheduled with date and team; installation completed; inspection requested; system approved and generating.

Seven messages in three months. The effect is disproportionate to the effort: drastically reduces collection calls, avoids the feeling of abandonment, and creates the right moment for the most valuable request in solar — referral. A satisfied client on the day the system turns on refers, on average, between one and three qualified contacts, with zero acquisition cost.

One last message 30 days later is also worth it: the new electricity bill has arrived, and it’s the moment the promise is confirmed. Asking for a photo of this bill yields two assets — the most convincing social proof in the sector and the natural hook for referral.

How to divide leads among salespeople

With two or more salespeople, a costly problem almost never measured appears: the lead that arrives and has no owner. The campaign runs, the contact comes in, and each assumes the other attended. When someone realizes, six hours have passed — and in ad leads, six hours is the same as not attending.

The three common ways to divide have very different effects. Simple rotation is fair and easy to maintain but ignores that the salesperson may be on a technical visit 40 km away. Division by region reduces travel and helps schedule visits but concentrates volume on whoever got the strongest campaign regions. Division by client type — residential on one side, commercial and rural on the other — is usually the most profitable in small integrator teams because commercial sales require a different pitch, calculation, and patience for the cycle.

Whatever the choice, three rules must exist. Every lead has a visible owner from the first minute. There is a maximum first contact time — 10 minutes during business hours is a realistic goal — and leads not attended within this time return to the queue and are reassigned. And no one answers on their personal cell phone: distribution only works when conversations happen on the company channel, where you can see who replied, when, and what was agreed.

The cost of this arrangement is simple. With 180 leads per month and 15% of them going more than an hour without response, 27 paid contacts are delivered to competitors. At the conversion rate of the integrator from the beginning, this represents almost one contract per month — R$ 4,840 margin lost due to a queue problem, not a salesperson problem.

Integrator’s numbers

Six indicators show where the funnel is leaking:

1. First response time. Goal below 5 minutes during business hours. It’s the indicator with the greatest impact on ad lead conversion.
2. Percentage of leads who send the electricity bill. Below 50% indicates a weak initial approach.
3. Simulations that turn into technical visits. Shows if the simulation is delivered with value or as a loose number.
4. Visits that turn into proposals and proposals that turn into contracts. The two rates separated — together they hide the problem.
5. Average number of contacts until closing. If the average is two, the operation is giving up too early.
6. Contracts by origin. Ad, referral, and old base. It’s the number that decides where to invest the next month.

None of these appear in a funnel scattered across three cell phones. The integrator who centralizes conversations almost always discovers in the first week that the month’s contracts were already stuck inside WhatsApp itself — waiting for someone to remember to respond.