Short answer: A solar EPC company needs an ERP that follows a project from enquiry to site survey, quotation, procurement, installation, billing and years of AMC service. Accounting software alone can’t do that. Vayasoft, an official Odoo Ready Partner, implements Odoo ERP for solar EPC companies so the whole lifecycle runs on one system. We’ve already delivered this for a solar EPC company working across residential, commercial and industrial projects. Read the case study.
The problems solar EPC companies tell us about
- Scattered data. Enquiries, quotations, projects, purchases and service records sit in different tools and spreadsheets.
- Site surveys that don’t reach the quote. Roof details, load, capacity and photos are captured on paper or WhatsApp, then re-typed.
- Material shortages on install day. Panels, inverters, batteries, structures and cables aren’t reserved per project, so crews wait.
- Cash stuck in milestones. Advances, milestone bills and subsidy-linked payments are hard to track against each project.
- AMC slips through the cracks. Warranty dates, cleaning visits and breakdown calls are tracked in a diary, and renewals are missed.
How Odoo runs a solar EPC business
| Stage | Odoo apps | What happens |
|---|---|---|
| Lead and enquiry | CRM | Every enquiry is captured with source, capacity (kW) and segment, and followed up |
| Site survey | Field Service or Project, with a survey form | The surveyor records roof, load, shading and photos on mobile, linked to the lead |
| Quotation | Sales | A kit-based quote (panels, inverter, structure, BOS, installation) built from the survey |
| Project planning | Project | Milestones, crews, dates and a material list for each installation |
| Procurement and stock | Purchase and Inventory | Materials bought against the project and reserved, with serial numbers for panels and inverters |
| Installation | Field Service | Crews get jobs on mobile, with checklists, photos and customer sign-off |
| Billing | Accounting | Advance, milestone and final invoices, with GST, linked to the project |
| AMC and service | Helpdesk, Field Service and Subscriptions | AMC contracts, planned cleaning and maintenance visits, breakdown tickets and renewal reminders |
What changes after go-live
- One record per customer and site, from first enquiry to the last AMC visit.
- Project profitability you can see while the job is running, not months later.
- Serial-number traceability for every panel and inverter, which makes warranty claims faster.
- AMC revenue you can plan, because renewals and visits are scheduled automatically.
Residential, commercial and industrial solar
The same system handles small rooftop jobs and large commercial or industrial projects. Residential installs use quick, kit-based quotes and standard checklists. Commercial and industrial projects use detailed bills of quantities, milestone billing and larger project plans.
Frequently asked questions
What is the best ERP for a solar EPC company?
The best ERP covers the full lifecycle: CRM, site survey, quotation, project, procurement, inventory, installation, billing and AMC. Odoo covers all of these in one system, and Vayasoft has implemented it for a solar EPC company.
Can Odoo manage solar AMC contracts?
Yes. AMC contracts can be set up as recurring contracts, with planned maintenance visits, breakdown tickets and renewal reminders.
Can we track serial numbers of panels and inverters?
Yes. Odoo Inventory tracks serial numbers from purchase to installation, so you know which panel went to which site.
Does it handle GST and e-invoicing for solar projects?
Yes. Odoo’s Indian localisation covers GST invoicing, e-invoicing and e-way bills. Your accountant confirms the tax rates for each item.
How long does implementation take for a solar EPC company?
Typically 8 to 12 weeks, depending on the number of apps, how much customisation you need and how much data we migrate. See how our Odoo implementations work.
Do you have a demo for solar companies?
Yes. We can show you Odoo set up for a solar EPC workflow, from enquiry to AMC.
Talk to Vayasoft
Running a solar EPC or installation business? Book a free 30-minute call and we’ll walk you through Odoo set up for solar, from enquiry to AMC.
About Vayasoft: Vayasoft is an official Odoo Ready Partner based in India. From our offices in Pune and Indore, we implement, customise, upgrade and support Odoo for manufacturing, distribution, solar EPC, retail and service businesses, and we publish our own apps on the Odoo App Store.