Advantages of Bifacceal photovoltaic panels – Solar Zontec

How can photovoltaic panels produce more energy without occupying more space? Bifacceral technology offers a simple solution: capturing light on both sides of the panel, using both direct and reflected radiation. Unlike traditional panels, they have longer efficiency and an extensive life, becoming an increasingly interesting option for those who want to maximize energy production.

What is a double -sided solar panel?

A double -sided solar panel is a photovoltaic module designed to capture sunlight on both sides, both on the front and on the back. Unlike the single -phase panels, which absorb light only on a single surface, the double -sided panels are equipped with photovoltaic cells on both sides, which allow them to generate energy and from the light reflected from the ground or surrounding surfaces.

This technology maximizes the production of energy, in particular in environments with reflective surfaces, such as snow, water or light soil. In addition, the double -sided panels are compatible with various types of assembly, on the ground or on high structures, in which the reflection of the light is optimized, thus contributing to a more constant and efficient generation of electricity.

Types of Bifacceral solar panels

The double -sided panels are available in three forms:

Photovoltaic panels Bifacceral Glass/Glass (Glass/Glass)

The two -layer glass panels are the most structurally robust. They have a sustainable construction, which allows them to resist twenty and larger snow than other types of panels. The glass design on both sides protects photovoltaic cells from environmental factors, such as humidity, extreme temperatures and UV rays, contributing to a longer life and more stable efficiency. Although they are heavier and can have a higher initial cost, they are preferred for long -term projects due to their high resistance.

Glass double -sided photovoltaic panels/transparent basic sheet (glass/back -sauce transparent)

This type of panel has a front layer front and a rear layer of transparent lamina, allowing the absorption of the rear light. Compared to the glass/glass panels, they are lighter and usually more accessible in the price. The transparent basic sheet reduces the total weight of the panel and simplifies the installation, being a good option for projects in which support structures cannot support heavy panels. However, they can have a slightly lower duration than complete glass panels.

Bifacceral photovoltaic panels/opaque rear lamina (glass/opaque backfogl sheet)

These panels have a layer of glass on the front and a layer of opaque foil on the back. Although they are not 100%double -sided, they maintain some of the advantages of double -sided technology, but with a low degree of reflection with respect to the transparent rear versions. Due to their construction, these panels are closer to the single -phase panels in terms of weight and cost, while offering a slight increase in energy efficiency by partial absorption of reflected light.

More information on the return on investments: cost-benefit analysis of photovoltaic systems!

What are the advantages of double -sided solar panels?

Bifacceral solar panels offer a greater surrender than traditional ones, thanks to their ability to capture light on both sides. This technology offers significant benefits, from the increase in energy production to a prolonged life and better adaptability to various environmental conditions.

Here are the main advantages of using double -sided panels.

Maximize the use of soil and greater efficiency

Bifacceral solar panels are an ideal solution to optimize energy production on limited surfaces, offering more efficient use of the soil. Unlike the single -phase panels, which absorb light only on a single face, the double -sided panels capture the solar radiation both directly and through reflection, which allows them to generate more energy on the same surface installed.

This advantage becomes essential in projects in which space is limited, as commercial, industrial or coverage installations, in which every square meter is important. In addition, the rate of use of the electricity captured on the rear side exceeds 95%, which contributes to a higher production without the need to expand the installation surface. [1]

The longest generation window

Romania has a varied climate, with hot summers, cold winters and significant differences between the mountain regions, simple and coastal. This climatic diversity imposes high requirements for photovoltaic systems and double -sided solar panels offer a great advantage thanks to their ability to adapt efficiently to seasonal changes and variable weather conditions.

In the southern and south -eastern regions of Romania, such as Oltenia, Muntenia and Dobrogea, temperatures can often exceed 35 ° C in summer. The double -sided panels have a lower thermal coefficient than traditional panels, which means that they lose less efficiency in high temperature conditions. In addition, their structure with double glass helps to dissipate heat, maintaining more constant performance.

In the carpathians and in the northern regions of the country, temperatures often descend below -15 ° C in winter. Unlike single -phase panels, the double -sided ones can exploit the layer of snow that reflects the light, increasing the production of energy even in days with diffuse light.

If you are thinking of installing a photovoltaic system, be sure to choose a reliable installer! Find out how to make the best choice in our article: how to choose the right installation program for your photovoltaic system?

The double -sided panels excel in various climatic conditions

The double -sided solar panels offer a significant advantage over the single -phase ones expanding the energy generation window. This feature guarantees the maximization of the surrender and the reduction of dependence on ideal weather conditions.

Energy production on both sides:
• captures sunlight both on the front and on the back, using the reflection of the surrounding surfaces;
• increases the efficiency by 10-30% compared to single-phase panels, depending on the surface albedo (soil reflection). [2]
Extension of the generation time during the day:
• Compared to the single -phase panels, which produce optimal energy only when the sun is directly above, the double -sided ones can generate electricity from dawn to sunset;
• In ideal conditions, production begins at the beginning of the morning and continues later in the evening, increasing the daily use of the system.
High performance in bad lighting conditions:
• It works better in cloudy days or in widespread light conditions due to the improvement of absorption on both sides.

Bifacceral solar panels improve the system capacity factor

The ability factor of a photovoltaic system represents the relationship between the actual energy produced in a period and the maximum theoretical energy that the system could generate if it operated in nominal power 24/7. In other words, this indicator shows how well the solar infrastructure is used to generate electricity.

The double -sided panels contribute significantly to the increase in the capacity factor of a sun system, including photovoltaic kits, through:
1. Capture the sunlight on both sides.
2. Extension of the effective generation time.
3. Reduction of fluctuations in energy production.
4. Energy level impact impact (Lcoe). LCOE (Lived energy cost) is an economic indicator that measures the total cost of energy production during a sun system. [3]
Do you want to find out what is the best photovoltaic solution for you? Contact Solar Zonetc for specialized advice and find out how it is possible to optimize the solar system with double -sided panels. Our team can guide you step by step to make the best choice!

source
[1] Brian. «Bifacceral solar panels: advantages and installation scenarios (2025) – manufacturer of professional distributed photovoltaic modules.» Manufacturer of professional distributed photovoltaic modules, November 30, 2023, www.maysunsolar.com/blog-biFacial-solar-panels-benefits- Installation-scenarios-2025/. Access to February 21, 2025.
[2] Juaidi, Adel, et al. «A comparative simulation between single -phact and double -sided photovoltaic modules in Palestine conditions.» Solar Compass, vol. 8, December 2023, p. 100059, www.scienceirect.com/science/article/pii/s272940023000279, consulted on February 21, 2025.
[3] Team, CFI. «Lived energy cost (Lcoe).» Corporate Finance Institute, 12 January 2025, Corporatefinanceinstitute.com/resources/valuation/levelezed-cost-of-energy-lcoe/. Access to February 21, 2025.