3640W - 48V Off Grid Solar Kit - 5kVA RiiO-II - Inverter/Charger

3640W – 48V Off-Grid Solar Kit with 5kVA RiiO-II Inverter/Charger

The Sunshine Solar 3640W 48V Off-Grid Solar Kit with 5kVA RiiO-II Inverter/Charger is a solar power package designed for properties and buildings that require a standalone electricity supply. Combining eight 455W N-type TOPCon bifacial solar panels, a 75A MPPT solar charge controller, a 48V 105Ah lithium battery and a 5kVA RiiO-II inverter/charger, this kit provides a solution for generating, storing and converting solar energy.

Suitable for applications such as remote homes, garden offices, workshops, summer houses, static caravans and other off-grid buildings, this 3640W solar kit can help supply electricity where a conventional mains connection is unavailable or where greater energy independence is desired.

The package includes key cables, connectors, a DC isolator and battery protection components to support installation. Its 48V battery configuration and high-capacity inverter/charger make it a versatile option for standalone solar power systems and appropriately designed battery-backed installations.

Key Features and Benefits

• 3640W solar panel array: Eight 455W solar panels provide a combined rated solar generation capacity of 3.64kW.
• N-type TOPCon bifacial panels: Designed to capture sunlight from the front and rear surfaces, with additional rear-side generation depending on installation conditions and reflected light.
• 48V lithium battery storage: Includes one ES100 105Ah 48V LiFePO4 rack-mounted battery for storing solar energy.
• 5kVA RiiO-II inverter/charger: Converts battery power into usable AC electricity and provides inverter and charging functionality.
• 75A MPPT solar charge controller: Regulates battery charging from the solar array and tracks panel output.
• Installation accessories included: Supplied with solar extension cables, connectors, battery cables, a fuse kit, a two-string DC isolator and inverter battery cables.
• Monitoring options: Includes an E4 LCD monitor. Optional Bluetooth monitoring is available for compatible equipment and configurations.
• Off-grid applications: Suitable for appropriately designed solar installations in remote properties, workshops, garden buildings and other locations requiring standalone power.

What Is Included in the 3640W 48V Solar Kit?

This Sunshine Solar off-grid kit combines solar generation, battery storage, charge regulation and inverter/charger functionality. The listed package includes the following components:

Quantity	Component
8	455W N-type TOPCon bifacial solar panels with black frames
1	75A, 200V ET-series MPPT solar charge controller
2 sets	10m solar extension cables and connectors
1 set	16mm² battery-to-controller cables and 80A fuse kit
1	Two-string DC isolator switch
1	ES100 105Ah 48V LiFePO4 rack-mounted lithium battery
1	E4 LCD monitor
1	RiiO-II 5kVA 48V inverter/charger
1 set	1m × 10mm² battery cables with 8mm lugs and built-in 150A fuse kit

Product specifications and included accessories can change. Check the current product listing and confirm component compatibility before ordering or installing the system.

High-Efficiency 455W Bifacial Solar Panels

The kit uses eight Sungrow SG-48TG4D-455 solar modules, giving the system a combined rated solar array capacity of 3640W (3.64kW).

The panels use N-type TOPCon cell technology and a bifacial, dual-glass design. Listed specifications include module efficiency of up to 22.8%, a black-anodised aluminium frame and an IP68-rated junction box. The listed manufacturer warranties are 25 years for the product and 30 years for linear power performance. Confirm current warranty terms with the supplier and manufacturer.

Actual solar generation depends on sunlight levels, season, shading, panel orientation, installation angle and site conditions. Bifacial gains also depend on the amount of useful reflected light reaching the rear of the modules.

5kVA RiiO-II Inverter/Charger

The RiiO-II 5kVA 48V inverter/charger is the central power-conversion component of this off-grid solar kit. It is designed to convert DC electricity from the battery into AC electricity for compatible appliances and electrical equipment.

The RiiO-II range offers inverter and battery-charging functionality, with additional operating capabilities depending on the model, configuration and installation. Features such as surge handling, transfer operation, parallel operation and three-phase expansion must be checked against the exact manufacturer's datasheet and system design.

A 5kVA rating refers to apparent power, not necessarily 5kW of continuous usable real power under every operating condition. Check the inverter's rated output, surge capability and appliance compatibility before connecting high-demand equipment.

48V Lithium Battery Storage

This package includes one ES100 105Ah 48V LiFePO4 rack-mounted lithium battery. Battery storage allows electricity generated during daylight hours to be stored for use when solar generation is low or unavailable.

Available runtime depends on the appliances being powered, their combined energy consumption, battery settings, inverter losses and usable battery capacity. High-demand appliances such as electric heaters, kettles, pumps and power tools should be assessed individually to confirm that the battery and inverter can support their loads.

Typical Applications for This Off-Grid Solar Kit

The 3640W 48V off-grid solar kit may be suitable for a range of standalone solar power applications, including:

• Remote homes and properties without a reliable mains electricity connection.
• Garden offices and home workspaces.
• Workshops, garages and outbuildings.
• Summer houses and static caravans.
• Lighting, communications equipment and selected general electrical loads.
• Battery-backed power systems designed for specific backup requirements.

Before purchasing, estimate your daily electricity consumption and maximum simultaneous electrical load. This will help establish whether the 3.64kW solar array, included battery and 5kVA inverter/charger are appropriate for your requirements.

Solar Performance and Energy Generation

Sunshine Solar lists an indicative summertime performance of approximately 303Ah per day on a 48V system for this kit. This figure is an estimate rather than a guaranteed daily output. Actual energy generation varies with weather, daylight hours, season, solar-panel orientation, shading and system losses.

For a more accurate assessment of expected performance, consider:

• Daily electricity consumption in kilowatt-hours (kWh).
• Seasonal sunshine levels and local weather conditions.
• Solar-panel orientation, installation angle and shading.
• Required battery storage and the desired period of backup power.
• Appliance start-up surges and maximum simultaneous demand.