Off-Grid Solar Kit 4000 W / 10240 Wh Storage GENERGY SIRIUS-B with 7.5 kW Backup Generator

Solar system with automatic petrol backup – complete in one kit

The PLAN SOLAR SIRIUS BACKUP-B takes the proven Sirius solar system and adds an automatic petrol inverter generator. In everyday use, you get clean, quiet power from the sun and battery storage – and if solar yield and battery are ever not enough, the generator starts fully automatically. This gives you guaranteed autonomy in any weather, even during long periods of bad weather.

Six panels with a combined 3,960 W generate the solar power, which is stored in two LFP batteries totalling 10.24 kWh and supplied via the inverter with up to 5,200 W at 230 V – an annual average of around 20 kWh per day. As a fallback, the 7,500 W inverter generator supplies additional clean power when needed and recharges the batteries.

The four components of the kit

1

6 × units

Solar panel CT660W-33MH

Bifacial double-glass panels with 210 mm half-cells, a combined 3,960 W (3.96 kW) of peak power and 21.24% efficiency.

2

1 × unit

Inverter IFR 5200-48

Off-grid solar inverter with 5,200 W AC output (230 V), pure sine wave, MPPT solar charging and intelligent system control.

3

2 × units

Battery storage LFP5120WH

Two stackable LiFePO4 batteries (Grade A) with a combined 10.24 kWh, integrated smart BMS and a service life of more than 10 years.

4

1 × unit

Backup generator Creta Sol 7500W

Automatic petrol inverter generator with 7,500 W, which starts automatically when needed and delivers clean, mains-quality power – for guaranteed autonomy in any weather.

Complete solution – everything included

The Backup-B is a genuine plug-&-play kit: besides the panels, inverter, batteries and generator, it includes everything you need for installation and operation.

What the system delivers

How the system works

From sunlight to socket – the energy flow at a glance.

All the material shown in the diagram is included in the kit – except for the cable sections to be determined on site (cross-section and length depend on the specific installation).

Applications

The Solar Plan Sirius Backup-B is highly versatile – wherever reliable energy with maximum fail-safety is needed.

Components in detail

1 · Solar panel CT660W-33MH (6× in the kit)

Exceptional mechanical strength (2,400 Pa wind load, 5,400 Pa snow load), passed corrosion tests against salt mist, ammonia, sand and fire (TÜV-certified) and double electroluminescence (EL) testing before and after lamination.

Performance guarantee (ISOLA): 99.00% in the first year, at least 87.40% after 30 years.

2 · Solar inverter IFR 5200-48 (1× in the kit)

3 · Battery storage LFP5120WH (2× in the kit)

4 · Backup generator Creta Sol 7500W (1× in the kit)

The inverter generator delivers clean, mains-quality power (pure sine wave) and starts automatically via a potential-free NO contact as a backup for the solar system – electric and manual starting are also possible. For outdoor use.

Clean solar operation – guaranteed autonomy

In everyday use, the Sirius Backup-B powers you emission-free and quietly from the sun and battery storage. If solar yield and battery are ever not enough – for example during long periods of bad weather – the petrol inverter generator starts fully automatically and keeps your supply of clean power running.

Backup-B thus combines clean solar energy for everyday use with the security of an automatic inverter backup generator. The generator runs on petrol and is operated outdoors; in pure solar mode, the system remains emission-free and quiet. The system also grows with your energy needs and adapts to private homes, farms, cabins, rural businesses or isolated installations.