A guide for owners and operations heads of Indian solar EPC and installer companies. Find your stage, pick your reading path, and see where the money leaks between quote and final payment.

GarunaCDX Editorial

Oct 19, 2026

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Chapter 2

2 min read

Where solar EPC money leaks between quote and final payment

Seven leak points from the survey to the last milestone, ranked by how quietly they drain margin and cash. A map to the rest of the guide.

The solar project lifecycle: stages, owners, documents and handoffs

Lead to O&M in nine stages: who owns each, which documents move, and which handoffs break.

Costing and margin control: from quote to forecast margin

Make the quote the budget, tag every cost to a project, and review forecast margin weekly. The chapter that decides whether you steer or just report.

Billing, cash flow and receivables for solar EPCs

Staged payments, long final milestones and bank guarantees turn profit into a cash problem. How to track milestones, retention and guarantees as dated obligations.

Approvals, net metering and subsidy: make the waiting visible

Installation takes days; approvals take weeks. A tracker per DISCOM, a subsidy claim pipeline and the equipment rules that cause rejections.

Procurement, inventory and warranty: one chain from supplier to roof

Link purchase orders to the BOM, gate crews on material, and carry the serial number from the supplier's invoice to the customer's roof.

Field operations, O&M and adoption: systems that survive the roof

Design for six roles, work offline, capture once, and run O&M as a loop from alert to renewal. The adoption chapter.

Choosing the system: sheets, stitched stack, configured ERP or custom build

A rule for the order to try things in, a requirements list, a vendor demo script and the two tests that decide it.

GarunaCDX Editorial

Oct 19, 2026

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