Question 1

Can multiple SIRIUS 820 Plug&Play 820W kits be connected together?

Accepted Answer

According to the technical manual of the SIRIUS 820 Plug&Play 820W kit, connecting multiple kits together is not recommended by the manufacturer. The kit is sold as a standalone solution of 820 W with an optimized configuration.

The kit includes:

2 monocrystalline panels of 410 Wc each
1 micro-inverter Tsun TSOL-MS800 of 800 W

The micro-inverter operates exclusively in grid mode (direct injection into the electrical grid) and does not offer cascading or parallel connection with other inverters. Additionally, the kit is not compatible with battery storage systems, which limits future expansion possibilities.

If you are considering increasing your solar capacity, contact the manufacturer SIRIUS for solutions suitable for your electrical configuration and the current grid connection standards in your area.

Question 2

Is the SIRIUS 820 Plug&Play 820w kit compatible with a storage battery?

Accepted Answer

No, the SIRIUS 820 Plug&Play 820w kit is not compatible with a storage battery. This kit is designed exclusively for self-consumption with grid injection - it is a grid-connected system, not an autonomous system.

The Tsun TSOL-MS800 micro-inverter used in this kit operates only in "grid inverter" mode. Therefore, it cannot manage the charging or discharging of a battery. Adding a battery to the system would require a completely different inverter capable of operating in hybrid mode.

Behavior in case of power outage

In the event of a grid outage, the micro-inverter automatically shuts down for safety (in compliance with anti-islanding standards). The system absolutely requires an active AC connection to operate - it produces no electricity during a power failure.

If you wish to add storage to your solar installation, you should consider a hybrid inverter and a suitable battery, which would constitute a completely different installation from this Plug&Play kit.

Question 3

Does the number of cells in a SIRIUS 820 Plug&Play 820w solar panel influence electricity production?

Accepted Answer

Yes, the number of cells directly influences the electricity production of your SIRIUS 820 Plug&Play 820w kit. Your kit includes 2 solar panels of 410 Wc each, totaling 216 monocrystalline cells (108 cells per panel). The more cells the panel contains, the greater its ability to convert sunlight into electricity.

Specifications of your kit: Each panel of the SIRIUS 820 Plug&Play 820w is equipped with 108 monocrystalline cells measuring 182 x 91 mm. These monocrystalline cells offer excellent energy efficiency compared to other types. They directly convert sunlight into direct current, which is then transformed into 220-230 V electricity by the Tsun TSOL-MS800 micro-inverter (efficiency: 96.5% under real conditions).

The number of cells determines the maximum capacity of the panel, but several other factors affect your actual production:

Sunlight: Light intensity varies depending on the season, time of day, and weather
Inclination: Your kit offers adjustable angles (30°, 46°, or 60°) to optimize solar capture
Shading: Any obstacle between the panel and the sun reduces production
Temperature: Performance slightly decreases in very high heat

With its 216 cells and 3.85 m² of capturing surface, your SIRIUS 820 Plug&Play 820w kit can produce up to 1,060 kWh per year under good installation conditions. The number of cells you have is thus sized to achieve this peak power of 820 Wc. A panel with fewer cells would be less powerful; a panel with more cells would increase potential production.

Question 4

Are all the panels of the SIRIUS 820 Plug&Play 820w solar kit connected in parallel?

Accepted Answer

The two 410 Wc panels of the SIRIUS 820 Plug&Play kit are connected in parallel via the TSUN TSOL-MS800 micro-inverter. However, this connection is optimized thanks to the 2-in-1 technology with two independent MPPTs integrated into the inverter.

Each panel has its own separate DC input and its own maximum power point tracking (MPPT). This means that each panel is optimized individually and independently, without one being limited by the other. If one panel is partially shaded or dirty, it will not reduce the output of the other panel.

Advantages of this configuration:

Individual optimization: Each panel produces its maximum power according to its sunlight conditions, without depending on its neighbor
Constant voltage: Since this is a parallel connection, the system's output voltage remains at around 35 V (voltage of each panel) and does not overload the inverter's limits
Reliability: The production loss of one panel does not affect the overall operation of the system
Maximum production: The total current of 26 A (13 A per panel) is efficiently managed by the inverter to deliver up to 800 W in AC output

This 2-in-1 architecture with two independent MPPTs is therefore superior to a simple series or conventional parallel connection. It ensures that your 820 Wc peak power is utilized optimally, even in heterogeneous sunlight conditions.

Question 5

What is the power of a cell in the SIRIUS 820 Plug&Play solar panel kit consisting of 108 cells?

Accepted Answer

The SIRIUS 820 Plug&Play solar panel kit has a total power of 820 W and is made up of 108 solar cells. To find out the approximate power of a single cell, simply divide the total power by the number of cells:

Total power: 820 W
Number of cells: 108

Calculation:

Power per cell = 820 W ÷ 108 ≈ 7.59 W

Each cell in the kit therefore has a power of approximately 7.59 watts. This estimate gives an idea of the individual contribution of each cell to the overall power of the solar panel.

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