Clear width
Parapet to parapet, after pipes and the walkway. If only one row fits, the quote says one row.
Adambakkam lanes and small blocks
Two roofs keep coming up. A narrow independent house, where the clear width may hold a single row. Or a small block of a few flats that share one tank. ZeroEB comes from the Madipakkam office. The visit is free, and nothing is ordered until you ask.

Width first
Brindavan Nagar and the lanes toward Madipakkam are mostly houses on tight plots. The next house is close. Once the parapet and the pipes are left alone, the open width may take only one row. That row is matched to the daytime bill. A second line is not pushed onto the wall just to raise the kilowatt figure.
The other case is a small block on what used to be a house plot. A handful of flats, one overhead tank, and no large association office. Every owner who uses that tank agrees in writing, or the job waits. The tank is not moved. Modules sit on the slab around it. City-wide module choice is on panels for a Chennai home. A stair head in the middle of the roof is the Nanganallur drawing. Here the limit is plot width, or a tank shared by a few homes.
One row if that is the widthShared tank staysVisit from MadipakkamOn the measuring visit
Parapet to parapet, after pipes and the walkway. If only one row fits, the quote says one row.
The house across a narrow lane can cut the sun on the street side for part of the morning. That band stays empty.
On a small block, written consent from each co-owner comes before a layout. The tank keeps its place.
Central assistance needs cells and modules made in India. Eligible homes can receive up to ₹78,000. The amount follows the scheme on the day you apply.
Who decides
A householder can decide alone. A small block cannot. We wait for a short written consent from each person who shares the roof. A setback or a balcony is not a mounting place, even on a narrow plot where the terrace feels small.
How the row is fixed is on solar panel installation. Modules already in your store are labour, and that scope is on installation services. The Adambakkam figure is on solar panels and prices in Adambakkam. How the crew sets the row is on solar panels and installation in Adambakkam. Reading the subsidy gap is on panel and price. NDCR against DCR is in that guide before an import is confirmed.
Asked on these lanes
Yes. The roof visit is free. A recent bill is enough to start. You can stop after the width is measured. No modules are ordered that day.
Yes, when that row matches daytime use. We will not crowd a second row against the parapet to inflate the size.
Every owner of that roof, in writing. One verbal yes is not enough. The tank stays. Modules go on the slab around it.
Yes. Cells and modules must be made in India. Eligible homes can receive up to ₹78,000, subject to the scheme on the day you apply. NDCR is only if that assistance has already been given up.
A free visit from Madipakkam. We measure the clear width and list who must sign before any module is ordered.
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