A Step-by-Step Guide to the Solar EPC Process: From Feasibility to Commissioning
Introduction
Switching to solar energy is a smart decision for any Indian business looking to reduce electricity costs, increase sustainability, and achieve energy independence. However, for a successful solar project, it’s important to understand the Solar EPC (Engineering, Procurement, and Construction) process.
Many companies in India still feel confused about how to begin their solar energy journey. That’s why we’ve created this simple, step-by-step guide to explain exactly how SunEncore manages solar EPC projects – from feasibility studies to final commissioning.
By the end of this blog, you’ll clearly understand how SunEncore’s expert team handles every stage to deliver high-quality, reliable, and profitable solar energy solutions in India.
What is Solar EPC?
Solar EPC refers to the end-to-end process where one company (like SunEncore) takes responsibility for the Engineering, Procurement, and Construction of a solar power plant. This is the most preferred model in India because it ensures that businesses deal with a single, accountable partner throughout the project.
Why is EPC important?
✅ Simplifies the entire process
✅ Ensures technical accuracy
✅ Reduces risks and delays
✅ Maximizes return on investment
✅ Provides long-term reliability
Step-by-Step Solar EPC Process with SunEncore
Step 1: Feasibility Study & Site Assessment
Before starting any solar project, SunEncore performs a detailed feasibility study. This helps us and the client understand whether the site is suitable for solar power, how much energy it can generate, and the expected savings.
Activities include:
✅ Site survey (rooftop or ground-mount)
✅ Shadow analysis for solar exposure
✅ Electrical infrastructure assessment
✅ Load analysis & energy consumption patterns
✅ Roof strength evaluation (if applicable)
At this stage, we prepare an initial ROI calculation, so clients can make informed decisions.
Step 2: System Design & Engineering
Once feasibility is confirmed, our in-house engineering team designs a tailored solar solution. The goal is to maximize energy output, reduce costs, and ensure long-term efficiency.
Key Design Aspects:
✅ Optimal panel placement & tilt angle
✅ Inverter sizing & placement
✅ Structural design for stability & safety
✅ String design for performance optimization
✅ Compliance with Indian electrical codes & standardsSunEncore uses advanced software tools and industry best practices to deliver designs that are both efficient and future-proof.
Step 3: Financial Planning & Approvals
Solar is a financial investment. At this stage, SunEncore assists clients with financial modeling, payback analysis, and exploring funding options. Whether it’s CAPEX, OPEX, or Power Purchase Agreements (PPA), we help clients choose the best route for maximum ROI.
We also manage all required:
✅ Government approvals
✅ Net metering applications
✅ DISCOM permissions
✅ Subsidy documentation (if applicable)
Step 4: Procurement of Quality Components
Quality matters in solar energy. SunEncore sources all key parts from trusted Indian and international manufacturers, guaranteeing durable performance and reliable warranties.
Components we source:
✅ Solar panels (Tier-1 brands preferred)
✅ Inverters (string, central, or hybrid)
✅ Mounting structures (aluminum or galvanized iron)
✅ AC/DC cables
✅ Protections & safety devices
✅ Monitoring systems We prioritize components with certifications like BIS, MNRE-approved, and IEC standards for Indian solar projects.
Step 5: Construction & Installation
Our EPC execution teams manage the entire construction phase, ensuring safety, quality, and timely delivery.
Activities include:
✅ Site preparation
✅ Civil works (if ground-mount)
✅ Mounting structure installation
✅ Solar panel installation
✅ Electrical connections (DC & AC)
✅ Grid synchronization preparation
SunEncore follows strict health, safety, and environment (HSE) protocols throughout the installation.
Step 6: Testing, Quality Checks & Commissioning
Before handing over the system, SunEncore’s engineers conduct detailed testing to ensure everything is functioning perfectly.
Tests Conducted:
✅ Insulation resistance testing
✅ Earth resistance testing
✅ String monitoring
✅ IV curve tracing
✅ Performance ratio (PR) analysis
After all quality checks pass, we proceed with grid synchronization and system commissioning, following all regulations.
Step 7: Handover, Training & Documentation
Upon successful commissioning, SunEncore provides:
✅ As-built drawings & reports
✅ Warranty documents for all components
✅ Training for client’s staff on basic operations
✅ Access to monitoring dashboards
✅ Maintenance guidelines
Our goal is to ensure the client can confidently operate and monitor the system for years to come.
Step 8: Ongoing Operation & Maintenance (O&M)
To protect your investment, SunEncore offers long-term O&M services. Regular maintenance ensures the system keeps generating maximum energy and financial returns throughout its lifespan.
O&M Activities:
✅ Preventive maintenance
✅ Corrective repairs
✅ Remote monitoring (24/7)
✅ Periodic cleaning of panels
✅ Performance reporting
Proper O&M keeps systems operating at 95-98% efficiency, maximizing ROI and extending lifespan.
Why Indian Businesses Prefer SunEncore for EPC
SunEncore has been a trusted name in the Indian solar energy market for over 8 years. Our EPC process is trusted by industries, commercial clients, and institutions across India because we deliver projects that perform.
Our Strengths:
✅ Proven expertise in complex projects
✅ In-house engineering & project management
✅ Quality-first approach
✅ On-time delivery record
✅ Nationwide project experience
✅ Specialized knowledge of India’s climate & grid challenges
Conclusion: Simplifying Solar for Indian Businesses
Choosing the right solar EPC partner can make the difference between a successful solar project and a wasted investment. With SunEncore, businesses in India receive expert guidance, quality engineering, and dedicated support throughout the solar journey.
From feasibility studies to commissioning and O&M, we take full responsibility to ensure every project delivers on performance, savings, and sustainability goals.
Ready to Start Your Solar Journey with SunEncore?
Talk to our experts today and get a customized, reliable, and profitable solar solution for your business.
📞 7999606263
✉️ nimesh.s@sunencore.com
🌐 www.sunencore.com
