Solar EPC Company vs Dealer vs Installer — Explained
When looking for solar in India, you'll encounter many terms — EPC company, solar dealer, installer, system integrator. Here's what they all mean and who you should hire for your project.
What is a Solar EPC Company?
EPC stands for Engineering, Procurement, and Construction. A solar EPC company handles everything:
- Engineering: System design, shadow analysis, structural assessment, electrical drawings
- Procurement: Sourcing and purchasing panels, inverters, mounting structures, cables
- Construction: Complete installation, commissioning, and grid connection
EPC companies are best for medium to large projects (10 kW and above) and commercial/industrial solar.
What is a Solar Dealer?
- Sells solar equipment (panels, inverters, batteries) — may or may not install
- Best for: DIY installations or buying equipment separately
- Risk: No guarantee on system performance, you manage coordination
What is a Solar Installer?
- Handles site survey, design, and installation
- May procure equipment from dealers or manufacturers
- Best for: Residential systems (1–10 kW)
- Always verify they are MNRE-empanelled for subsidy eligibility
Which Should You Choose?
| Project Type | Recommended | Why |
|---|---|---|
| Home (1–5 kW) | Local MNRE Installer | Good pricing, handles subsidy |
| Large Home (5–10 kW) | Installer or small EPC | Better design capability |
| Commercial (10–100 kW) | EPC Company | Proper engineering, performance guarantee |
| Industrial (100 kW+) | Large EPC Company | Turnkey, bankable, performance contract |
Red Flags When Choosing
- No physical office or address (check on Google Maps)
- Cannot show previous installation photos or references
- Not on MNRE empanelled vendor list
- Quotes only via WhatsApp — no formal written proposal
- Demands 100% advance payment before any work
Questions to Ask Any Solar Company
- Are you MNRE-empanelled? (Show the certificate)
- What panel brand will you use? Is it BIS certified?
- Who handles the net metering application?
- What is the system performance guarantee?
- What does the AMC cover and cost?