1) System summary

• System type: On-grid / grid-tie (no battery).

• Rated DC array power: 3.0 kWp (3,000 Wp).

• AC export nominal power: ~3.0 kW (depending on inverter selection).

• Operating mode: Export to grid when generation > local load; import from grid when needed.

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2) Typical components (Bill of Materials)

1. PV modules — 8 × 375 W polycrystalline / mono-PERC / bifacial panels (example).

   • Alternative: 10 × 300 W modules (10×300 = 3,000 W).

   • Provide module datasheet for exact electrical values.

2. String inverter (grid-tie) — 3.0 kW single-phase inverter with:

   • MPPT range suitable for selected string voltage

   • Euro/IEC/IS/UL certifications as required

   • Anti-islanding, reactive power control (if required by utility)

3. PV mounting structure — Roof-mounted (tilt rails + clamps) or ground-mounted frame; galvanized steel or aluminium.

4. DC isolator (switch) — rated ≥ inverter DC input voltage and current.

5. AC isolator / AC breaker — at inverter AC output (for maintenance/disconnection).

6. Surge Protection Devices (SPDs) — DC side (Type II) and AC side (Type II/III) per local standard.

7. Earthing / grounding kit — copper earthing conductor, earth rod, equipotential bonding.

8. DC cabling & connectors — UV-resistant PV cable, MC4 or compatible connectors.

9. AC cabling & protections — suitably sized cable, MCB/MCCB, energy meter (bi-directional if required), RCD if mandated.

10. Junction boxes / combiner (optional) — with fuses on strings if multiple strings.

11. Monitoring — inverter with built-in monitoring (Wi-Fi/GSM/RS485) or separate monitoring gateway.

12. Labels & warning signs — per electrical safety code and utility requirements.

13. Installation hardware & accessories — zippers, cable ties, sealing, flashings for roof penetrations.