CRM ROI Calculator for Solar Installers: Costing Missed Surveys and Stalled Subsidy Files

The leak is the survey you paid for and did not complete

Rooftop solar is unusual because a step in the middle of the funnel carries a real field cost. Sending an engineer to a site consumes half a day and a vehicle whether the customer is home or not. Most installers measure leads and orders and never measure the ratio between surveys scheduled and surveys completed, which is where a large share of the field budget quietly goes.

The second leak sits after the customer has already said yes

A confirmed order that is waiting on subsidy paperwork, a housing society letter or a net-metering application is not revenue yet. Nobody owns the outstanding document, so the file sits. This is not a sales problem at all, but it shows up in the same pipeline and it delays cash for weeks at a time.

Field efficiency

Surveys scheduled, surveys completed, cost per completed survey, and surveys per engineer per day. These four figures decide the efficiency of the most expensive part of your funnel, and none of them requires a conversion assumption to be useful.

Commercial side

Proposal-to-order conversion, average system size in kilowatts, revenue per kilowatt, and median days from order to installation start. Keep residential and commercial separate throughout, because they behave like two different businesses.

Cost side

Seats for sales, survey coordination and documentation staff, plus the effort of getting engineers to record survey outcomes in the field. That habit is the foundation of every other number here.

These are example figures showing how the arithmetic behaves. They are not results, customer outcomes or industry statistics, and your own funnel will look different. These are example figures, so substitute your own before drawing any conclusion.

In this illustration, 96 surveys are scheduled and 71 are completed, so 25 field visits produce nothing. At an example cost of ₹1,200 per site visit that is ₹30,000 a quarter in wasted field cost, before counting the leads that cooled while waiting to be rescheduled. Separately, 39 customers received a proposal and did not order. If disciplined follow-up converts three of them at an example 3 kW system and ₹55,000 per kilowatt, that is around ₹4.95 lakh. The 21-day gap between order and confirmation is a cash-flow figure rather than a sales one, and should be modelled as financing cost, not lost revenue.

Record five counts with dates from the first week, and resist changing anything for a month. Survey completion rate is the first thing that will move once reminders and route grouping start, and it is also the easiest to attribute honestly, because the number of leads has not changed. Judge proposal-to-order conversion at month six rather than month three, since rooftop decisions commonly wait for a bill cycle, a loan or a society meeting.

It overstates by assuming a recovered survey converts like a keen customer, and by assuming installation capacity exists for the extra orders. It ignores state policy changes and tariff revisions, which move demand far more than any internal process. And it treats documentation delay as a pure financing cost, which is only true while customers stay patient. It misses the value of having survey photographs and load details on one record when a service call arrives two years later. That is real and does not belong in the arithmetic.

Related reading: CRM for small business, WhatsApp CRM, lead management software, sales automation, CRM India, more CRM tools, and India pricing.