1. System Overview

• Type of System: On-Grid (Grid-Tied, without battery backup)

• Rated Capacity: 3 kWp (DC)

• Purpose: Residential rooftop solar installation under PM Surya Ghar Muft Bijli Yojana

• Estimated Free Units: Up to 300 units/month generated.

---

2. Major Components

1. Solar PV Modules

   • Technology: Mono PERC / Mono PERC Half-Cut (Preferred under scheme)

   • Wattage: 540 Wp – 550 Wp (typical)

   • No. of Panels: ~6 panels (540 Wp × 6 = 3,240 Wp; adjusted as per design)

   • Efficiency: ≥ 20%

   • Certifications: BIS / IEC 61215, IEC 61730

   • Warranty: 25 years performance (≥ 80% output at 25 years)

2. Grid-Tied Inverter

   • Capacity: 3 kW, Single Phase

   • MPPT Tracking: Yes (1–2 MPPTs)

   • Conversion Efficiency: ≥ 97%

   • Protections: Anti-islanding, Over/Under Voltage, Short Circuit, Overload

   • Communication: Wi-Fi / RS485 for online monitoring

   • Certifications: IEC / MNRE approved

   • Warranty: 5–10 years

3. Module Mounting Structure (MMS)

   • Material: Hot Dip Galvanized Steel / Aluminium Alloy

   • Design: Wind speed resistance up to 150 km/h

   • Tilt Angle: As per site latitude (10°–25° typically in India)

   • Corrosion Resistance: ≥ 80 microns galvanization

4. Balance of System (BOS)

   • Cables: UV Resistant DC Cables (4/6 sqmm), AC Cables (2.5/4 sqmm) copper as per load

   • Connectors: MC4 compatible IP67 certified

   • DCDB/ACDB: With MCB, SPD (Type II), Isolators, Fuses

   • Earthing & Lightning Arrestor: 2–3 GI/Copper Earthing as per IS 3043

---

3. Electrical Specifications

• DC Array Power: 3.0 kWp

• Operating Voltage (Vmp): ~300–450 V DC (depends on module configuration)

• Max DC Current: ~10–12 A (single string)

• AC Output Power: 3.0 kW @ 230 V AC, 50 Hz

• AC Output Current: ~13–14 A

• Power Factor: 0.9 Lag to 0.9 Lead

• Grid Compliance: As per DISCOM & CEA Regulations

---

4. Expected Performance

• Average Generation: 12–15 units/day (4,500–5,500 units/year, depending on location & solar radiation)

• Free Electricity Benefit: Up to 300 units/month free under the scheme (excess units adjusted with DISCOM bill)

• CO₂ Reduction: ~4.5 tons/year

---

5. Protections & Safety

• DC & AC Isolators

• DC SPD (Type II), AC SPD (Type II/III)

• Earthing: PV array earthing, inverter earthing, lightning protection

• Inverter with anti-islanding protection

• Net Metering (Bi-directional energy meter installed by DISCOM)

---

6. Standards & Compliance

• MNRE Approved Vendor & Components

• Standards: IEC 61215 / 61730 / 62109, IS 14286, IS 16221, IS 16169

• DISCOM Approval: Net metering as per state policy

---

7. Warranty & O&M

• Modules: 25 years performance warranty

• Inverter: 5–10 years manufacturer warranty

• MMS & BOS: 5 years standard warranty

• O&M Support: Annual Maintenance.