Welcome Crop — 30.34 kWp rooftop solar, Doddaballapura

The project

The brief

Welcome Crop operates from a manufacturing unit in the KIADB Industrial Area at Doddaballapura, on the northern edge of Bangalore Rural district. The building came with what most industrial buildings come with: a long, unshaded, gently pitched metal-sheet roof doing nothing.

EcoSoch designed, supplied and commissioned a 30.34 kWp grid-tied plant across it — 82 modules, module-level power electronics, and a net-metered connection to the state grid. The plant now averages 107 kWh a day over its lifetime.

Customer	Welcome Crop
Capacity	30.34 kWp
Location	#48/1, 13th Cross, Veerapura Post, KIADB Industrial Area, Doddaballapura, Bangalore Rural District, Karnataka 561203
Coordinates	13.2448044, 77.555783
Modules	82 × Waaree 370 Wp monocrystalline, 72-cell
Inverter	1 × SolarEdge 27.6 kVA on-grid string inverter
Optimizers	41 × SolarEdge P730, one per two modules
Mounting	Aluminium rail-and-clamp on metal sheet roof
Metering	Bidirectional net metering with a dedicated generation meter

System design

What the plant is made of

Three decisions shape everything downstream: the module, the inverter, and whether power electronics sit at string level or module level.

82 modules

Waaree 370 Wp

Monocrystalline, 72-cell. Eighty-two of them at 370 Wp gives exactly 30.34 kWp of DC capacity.

27.6 kVA

SolarEdge inverter

A single on-grid string inverter converting DC to grid-synchronised AC. A DC-to-AC ratio of 1.10 keeps the inverter working near its efficient band for most of the day.

41 units

P730 optimizers

One per pair of modules, giving maximum power point tracking at module level rather than string level.

Why module-level electronics on this roof

With string-level tracking, one shaded or soiled module drags the whole string down with it. With optimizers, it drags down only itself. On a long industrial roof where soiling is uneven and a single vent or cable tray can throw a shadow, that difference shows up in the annual yield. It also makes every module individually visible in monitoring, so an underperforming panel can be found from a desk rather than by walking the roof.

Single-line arrangement

The generation meter records what the array produces; the bidirectional meter records what crosses the boundary in each direction. Keeping them separate is what allows performance and billing to be reconciled against each other rather than inferred from one another.

Installation

Working with the roof, not against it

Aluminium mounting rails and module clamps were laid out across the full length of the metal-sheet roof, following its natural slope.

Working with the existing pitch rather than tilting against it keeps the structure low, preserves the maximum usable array area, and avoids the self-shading that raised tilt frames create once rows are packed close together. Rows were aligned to the ridge, and clamp positions set to spread load across the sheet profile rather than concentrate it on a few points.

Aluminium mounting rails and clamps laid out across the metal sheet roof before module installation — Rails and clamps set out across the full roof length, following the existing slope.

Installed solar modules running along the roof ridge — Modules installed and aligned to the ridge line.

Detail of an installed module row on the metal sheet roof — Row detail — clamps bearing on the sheet profile.

Weatherproof DC conduit routed along the roof ridge into the central junction box — DC cabling in weatherproof conduit along the ridge.

DC cabling

Cabling was routed through weatherproof conduit along the ridge line into a central junction box. Short runs reduce DC losses; conduit keeps the wiring off the roof surface where water collects and debris gathers; and running it along the ridge means the whole length can be inspected without lifting a single module.

Grid integration

Commissioned and net-metered

The plant was grid-connected under the state net-metering framework, with a bidirectional meter recording import and export separately and a dedicated meter recording generation.

SolarEdge inverter with AC and DC distribution boards mounted on the wall — SolarEdge inverter with AC and DC distribution boards, conduit dressed and labelled for maintenance access.

Bidirectional net-metering panel installed at the site — Bidirectional net-metering panel, recording import and export separately.

Dedicated solar generation meter installed alongside the net-metering panel — Dedicated solar generation meter, independent of site consumption.

Performance

Holding its output, season after season

Three averages, taken from the plant's own generation meter.

Average daily generation · kWh

The 2026 year-to-date figure runs 11% above the lifetime average, and August sits below both — which is what a Bangalore monsoon month looks like on a generation chart. Read together, the three describe a plant holding its output rather than drifting downward: seasonal variation is visible, degradation is not.

Outcome

A reliable, grid-tied solar asset

EcoSoch delivered the complete solution — racking, module installation, DC and AC works, inverter commissioning and net-metering integration — engineered for dependable long-term generation on an industrial roof.

The result is a 30.34 kWp asset feeding the site and the grid consistently since commissioning, with module-level monitoring in place so that performance can be verified rather than assumed.