How To Implement Solar Panel

1. Site Survey & Feasibility Check

• Assessment of rooftop/ground space (orientation, shadow-free area, structural strength).
• Calculation of daily energy consumption (from electricity bills).
• Checking for grid connectivity and DISCOM (state electricity board) policies.
• Identifying whether on-grid, off-grid, or hybrid system suits the requirement.

2. System Design & Cost Estimation

• Sizing the solar plant based on energy needs and available area.
• Deciding panel type (mono PERC, bifacial, polycrystalline, etc.).
• Selecting inverter type (string, microinverter, hybrid).
• Preparing layout and cost estimation, including subsidy benefits (if applicable).

3. Approvals & Subsidy Application

• Apply for net-metering approval with the state DISCOM.
• Register under MNRE subsidy schemes (if installing under the Rooftop Solar Programme).
• Submit required documents (ID, property proof, electricity bill, system design).

4. Procurement of Equipment

• Purchase of solar panels, inverter, mounting structures, batteries (if needed), cables, junction boxes, and safety equipment.
• Prefer MNRE-approved manufacturers for subsidy eligibility.

5. Installation & Mounting

• Erection of mounting structure (fixed tilt or adjustable).
• Placement and alignment of panels (south-facing, ~20–30° tilt depending on location).
• Electrical wiring (DC from panels → inverter; AC from inverter → main distribution board).
• Battery connection (for off-grid/hybrid systems).

6. Net Metering & Grid Connection

• DISCOM installs a bi-directional net meter to measure import/export of electricity.
• System is synchronized with the local grid (for on-grid/hybrid).

7. Testing & Commissioning

• System testing for voltage, current, insulation, and earthing.
• Trial run to check inverter functioning and safety systems (MCB, SPD, earthing).
• Certification by the DISCOM engineer after inspection.

8. Monitoring & Maintenance

• Installation of remote monitoring system (many inverters have apps).
• Routine cleaning of panels (every 2–3 weeks in dusty areas).
• Annual maintenance checks for wiring, inverter health, and earthing.

Typical Timeline

• Residential rooftop: 2–4 weeks (including approvals).
• Commercial/industrial: 1–3 months depending on plant size.