Description

Technical Parameters

The 3kW Residential Stand Alone PV Power System is a fully engineered off-grid solar solution designed for residential electrification, backup power, and small commercial applications.

It integrates high-efficiency PV modules, hybrid/off-grid inverter, energy storage system, and complete installation accessories into a ready-to-deploy package for global distributors and EPC contractors.

Standard System Configuration

Solar Panel Array
High-efficiency PV modules with multiple technology options to match different market requirements.
TOPCon Solar Panel: 580W × 16 pcs (standard configuration)
Optional upgrades:
TOPCon 630W
HJT 700W
Back Contact 450W
Back Contact 625W
PERC 660W
Total PV capacity (standard): Approx. 9.2 kW

Off-Grid Storage Inverter
Rated Power: 8kW (System-configurable)
Output Voltage Options: 110V / 120V / 208V / 220V / 380V
Frequency: 50/60Hz auto-adaptive
Type: Pure sine wave hybrid/off-grid inverter
Quantity: 1 piece

Battery Storage System
Two configuration options available depending on market preference:
Option A: GEL Battery System
12V 250Ah × 4 pieces
Designed for cost-sensitive markets
Stable performance for basic off-grid usage
Option B: Lithium Battery System (Recommended)
48V 100Ah × 2 pieces
LiFePO4 chemistry (high cycle life, deep discharge capability)
Higher efficiency and longer lifespan

Mounting Structure
Type: Roof / flat roof / ground installation compatible
Material: Corrosion-resistant aluminum / galvanized steel
Quantity: 1 complete set
Designed for wind and snow load adaptation (market dependent engineering adjustment)

PV Combiner Box
Type: 10 inputs / 1 output
Function: String protection, current aggregation, surge protection
Quantity: 1 piece

DC Cable System
Specification: Single-core 4mm² & 10mm² PV cable
Total length: 100 meters
UV-resistant and outdoor-rated insulation

Connectors
Type: MC4 compatible connectors
Quantity: 4 pairs
Designed for secure waterproof PV connections

Installation Tool Kit
5 essential PV installation tools included
Designed for on-site assembly and commissioning
Supports fast deployment for EPC installers

Mounting Structure

Roof / flat roof / ground installation compatible

Corrosion-resistant aluminum / galvanized steel

1 complete set

Designed for wind and snow load adaptation (market dependent engineering adjustment)

DC Cable System

Specification: Single-core 4mm² & 10mm² PV cable

Total length: 100 meters

UV-resistant and outdoor-rated insulation

Connectors

Type: MC4 compatible connectors

Quantity: 4 pairs

Designed for secure waterproof PV connections

Installation Tool Kit

5 essential PV installation tools included

Designed for on-site assembly and commissioning

Supports fast deployment for EPC installers

Typical Applications

Rural residential electrification projects

Off-grid villas and holiday homes

Small retail shops and kiosks

Island and remote community power supply

Backup power for telecom and critical systems

FAQ

Q: What is the MOQ?

A: MOQ starts from 1 set for samples and 10 sets for wholesale orders.

Q: What payment terms do you support?

A: T/T, Alibaba Trade Assurance, and L/C at sight for bulk shipments.

Q: What trade terms are available?

A: EXW, FOB, CIF, and DDP depending on destination and order size.

Q: What is the delivery time?

A: Standard production time is 7–25 days depending on configuration and quantity.

Q: Can the system be customized?

A: Yes, PV capacity, battery type, inverter voltage, and branding can be customized.

Q: How is product quality controlled?

A: Each system undergoes load testing, electrical safety inspection, and aging verification before shipment.

Q: What warranty is provided?

A: 1–5 years warranty depending on components such as inverter and battery type.

Q: How is packaging handled for export?

A: Reinforced export cartons or wooden crates with shock and moisture protection are used for sea freight.

Q: Do you support mixed models in one shipment?

A: Yes, mixed configurations are supported for container optimization.

Q: Do you provide installation documentation?

A: Yes, including wiring diagrams, installation manuals, and system commissioning guides.

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Item	Model	Description	Quantity
1	Solar Panel	TOPCon solar panel 580W The following models are optional TOPCon solar panel 630W HJT solar panel 700W Back Contact solar panel 450W Back Contact solar panel 625W PERC solar panel 660W	16 pieces
2	PV Combiner Box	10 inputs 1 output	1 piece
3	Off grid storage inverter	8kW, AC 110V/120V/208V/220V/380V/, 50/60hz	1 piece
4	GEL battery Lithium-ion battery (available)	12v 250Ah 48V 100Ah(available)	4 pieces 2 pieces (available)
5	Mounting Support	Pitched / flat roof, ground	1 set
6	Cable	Single-core 4mm² and 10mm² PV cable	100 meters
7	Connector	MC4 connector	4 pairs
8	Tools Bag	5 kinds of PV installation tools	1 bag

Product description

Off-grid PV systems, as the name implies, are systems that are not connected to the utility grid. These systems require an energy storage system for the energy generated because the energy generated is not usually required at the same time as it is generated.

A typical 3kw residential off grid solar power system comprises the following main components:

6 pcs of TOPCon solar panel 580W: these convert sunlight directly to electricity

1 pcs 3kw off grid storage inverter: converts the DC current generated by the solar PV modules to AC current for

4 pieces 12V 250AH (adjustable) batteries: Stores the energy generated by the PV modules Mounting support and cable

3kw Residential Stand Alone PV Power System