The Survey Is Where Margins Are Made or Lost

Most solar disputes trace back to the survey: a roof that turned out smaller than estimated, a structure that needed strengthening, an earthing point that was never checked. Ten minutes of structured data collection during the survey prevents all of it.

The Checklist, In Order

1. Roof and Space

Roof type (RCC, metal sheet, tile) and approximate usable area
Orientation and tilt, or the angles you would need to achieve
Shadow-free hours across the day — water tanks, neighbouring structures, trees

2. Structure

Condition of the roof slab or sheeting
Whether an elevated structure is needed and where anchors can go
Any civil work required before installation begins

3. Electrical

Sanctioned load and connection type
Existing wiring condition and the distance from meter to proposed panel location
Net-metering eligibility and the DISCOM's process in that area

4. Earthing and Safety

Availability of an earthing pit or space for one
Lightning protection needs for elevated structures

5. Customer Context

Monthly electricity bill and consumption pattern
Whether subsidy applies (domestic) or not (commercial/industrial)
Budget range and financing interest — ask here, not after the quotation

6. Photo Record

Wide shots, close-ups, meter, panel, obstacles, connection point. Structured photo categories stop surveys from becoming "whatever the technician thought to click".

Turn the Survey Into the Quotation

The point of a structured survey is that it flows straight into the quotation — the capacity, the structure section, the wiring lengths and the earthing line items all come from recorded data. If your survey forms live on paper, everything downstream is a re-typing error waiting to happen.

Tools like Doctor Solar Wala carry MNRE-style survey checklists, structured photo categories and site analysis that feeds directly into quotations and proposals, so what was measured is what gets quoted.

Frequently Asked Questions

What should be checked during a solar site survey?

Roof area, type and orientation, available shadow-free space, structural condition, existing electrical load and panel details, DISCOM and metering information, earthing feasibility, and access for installation — each recorded against the lead so the quotation is built on measured data.

What photos should a solar site survey include?

Wide roof shots from each direction, close-ups of the roof surface and structure, the meter and main panel, any shading obstacles, and the electrical connection point. Photos protect you in disputes and speed up internal approvals.

How does survey data improve solar quotations?

When capacity, structure, wiring and earthing choices come from recorded survey data instead of assumptions, the quotation's line items match what will actually be installed — so the final invoice matches the quote and margins hold.

Solar Site Survey Checklist: What to Record Before You Quote