Run your solar EPC business end-to-end.
From kW-based estimation to procurement, installation and commissioning, sotyn.ai keeps your whole solar EPC lifecycle in one system — with a dedicated solar division, not a generic bolt-on.
The leaks solar epc feel most.
Built for how you actually work.
Solar division built in
A dedicated solar sales funnel and kW-based estimation — designed for solar, not adapted to it.
Procurement engine
Indent → PO → payment for modules, inverters and balance-of-system, with approvals.
Install & commissioning
Site execution, checklists and T&C billing all the way through to handover.
Cash & collections
RA billing, retention tracking and AR/AP so solar payments don't slip.
How solar epc actually run a contract
Solar EPC has a rhythm the other trades do not: a kW-based estimate, a long procurement lead on modules and inverters, a fast installation window, then commissioning, DISCOM approval and net-metering paperwork before the final payment is anywhere in sight. The money sits in that last stretch.
Module and inverter procurement
Indent, rate comparison, purchase order and receiving for modules, inverters, structures and balance-of-system, with approval limits suited to large single orders.
Per-site stock and movement
What arrived at which site, what moved between sites and what is left — so the next order starts from reality rather than memory.
Installation and commissioning
Daily reports, checklists and snags through to handover, filed from a phone at site.
Retention and collections
Retention held per bill with its release date, and receivables aged — so the tail end of a solar job gets chased.
What it does not do. It does not file DISCOM applications, produce net-metering paperwork or assess subsidy eligibility — those stay with your liaison team. It also does not do shadow analysis, string design or yield simulation; it runs the commercial and execution side around the design you already have.
Straight answers
Does it do solar design or yield calculation?
No. Design, string layout and yield simulation stay in your design tools. sotyn.ai covers quoting from your rates, procurement, site execution, billing and collections.
Can it handle both rooftop and ground-mount projects?
Yes — they are projects with different BOQs and procurement profiles. The workflow is the same.
How is commissioning billing handled?
Through the Installation and T&C bill types, with retention held and its release date tracked.
Run on real EPC sites, not a demo.
Work across more than one trade? EPC ERP software covers the whole contract, and the workflows behind it are here: procurement approvals, RA billing and subcontractor bill checking.
See this on your own numbers
A 20-minute walkthrough on your trades and project sizes — not a slideshow. Three fields and we will call you back.