Как ефективно да решим проблема със засенчването? ✨

Did you know that shading of a single photovoltaic panel significantly reduces the performance of the entire system? Long-term shading of panels not only affects performance, but can also cause panel degradation. The installation company should take this into account when designing a photovoltaic system.

A photovoltaic power plant consists of modules that are usually connected in series. In this case, the performance of the entire chain is affected by the weakest link – if one panel is shaded, the current in the entire series is reduced.

Any shading leads to a decrease in photovoltaic performance, but if it is significant (e.g. it covers key parts of the panel), it can reduce electricity production by tens of percent. This is then reflected in a longer return on investment.

It is always better to avoid shading, but if this is not possible, there are solutions in the form of power optimisers or half-cut solar panels that help mitigate the effects.

We divide shading into two main categories:

• Hard shading: caused by solid objects (e.g., a chimney or neighboring building). It has clearly defined edges and can activate bypass diodes, which mitigate its impact.
• Soft shading: caused by scattered light from moving branches, distant trees, or clouds. This type of shading does not usually activate bypass diodes, which means that the reduction in performance is transferred to the entire string of panels and can cause higher losses.

How to deal with photovoltaic shading
When designing a photovoltaic system, it is essential to thoroughly analyse possible shading. We recommend using professional shading simulations to optimise panel placement and minimise power losses.

Half-cut panels: One modern solution for reducing the impact of shading is half-cut panels. These panels are divided into two independent halves, which means that if one part is shaded, the other can still generate energy efficiently. This reduces losses compared to conventional panels.

Power optimisers: Power optimisers are devices that are installed on individual panels and allow them to operate independently of others within a single string. This means that if one panel is shaded, the optimiser adjusts its power so that it does not affect the other panels in the string.
Optimizers are effective in both hard and soft shading conditions because they allow each panel to be controlled independently. This significantly improves the overall performance of the system, especially if there is uneven lighting or different panel orientations in the installation.

CS6.2-48TD-460 BF
Monocrystalline solar panel with a power output of 460 Wp and an efficiency of 23%. Excellent anti-LeTID and anti-PID performance. Higher reliability.
Lower temperature coefficient (Pmax): Pmax: -0.29 °C, increases energy yield in hot climates. Lower LCOE and system costs.
Suitable for year-round use thanks to its resistance to high snow loads of up to 6000 Pa and wind loads of 4000 Pa. Tested against hailstones with a diameter of 35 mm in accordance with IEC 61215 standards.

Year-round availability, suitable for any of your projects.

Width: 113.40 cm
Height: 176.20 cm
Depth: 3.00 cm
Technology: TOPCon
Panel type: Glass-glass

CS6.2-54TM-500 BF
Monocrystalline solar panel with a power output of 500 Wp and an efficiency of 22.5%.Excellent anti-LeTID and anti-PID performance. Higher reliability. Lower temperature coefficient (Pmax): Pmax: -0.29 °C, increases energy yield in hot climates. Lower LCOE and system costs.
Suitable for year-round use thanks to its resistance to high snow loads of up to 5400 Pa and wind loads of 2400 Pa. Tested against hailstones with a diameter of 35 mm in accordance with IEC 61215.

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Width: 113.40 cm
Height: 196.10 cm
Depth: 3.00 cm
Technology: TOPCon
Panel type: Mono

JW-HD108N-R2-500 FB Transparent Black
Solar panel from the niwa black series with a power output of 500 Wp and an efficiency of 22.5%. Up to 85% bifacial performance, more energy from the rear.
ZERO LID (Light Induced Degradation) N-type solar cells naturally have no LID, which can increase energy production.
Higher reliability - New generation TOPCon technology with no current leakage and higher resistance to hot spots.

Width: 113.40 cm
Height: 196.10 cm
Depth: 3.00 cm
Frame color: black
Technology: TOPCon

Astronergy CHSM72N(DG)/F-BH 585 SF
The Astronergy ASTRO 5 product line includes monocrystalline modules with high power ratings and high module efficiency.
The Astronergy CHSM72N(DG)/F-BH 585 SF solar panel has a power output of 585 Wp and an efficiency of 22.6%.
The panel consists of 144 cells and uses TOPCon and Half-cut technology. Its advantages include a low temperature coefficient (Pmpp) and low BOS and LCOE costs.
Product warranty: 15 years, performance warranty: 30 years.

Width: 113.40 cm
Height: 227.80 cm
Depth: 3.00 cm
Technology: TOPCon

Huawei optimizer MERC-1100W-P
The Huawei optimizer allows for hassle-free installation of photovoltaic modules on complex roofs, taking every angle into account. Even shadows or shaded areas do not interfere with your installation.

Your photovoltaic panels can achieve maximum performance thanks to module-level optimisation, which unlocks the full potential of your roof. You can easily get up to 30% more energy from your photovoltaic panels.

Another advantage is that you can check the status of energy production at any time via the FusionSolar app. In the event of a fault, the exact location of the fault can be identified immediately and repairs can be carried out more efficiently.