June 10, 2025
01Blog
10 most unexpected facts you didn't know about solar modules
Solar power plants are rapidly gaining popularity both in Lithuania and worldwide. However, many people—even those who already own them—remain unaware of some fascinating facts regarding the operation, manufacturing, and application possibilities of solar panels. Here are ten of the most unexpected facts about solar modules that might surprise even the experts!
1. Solar modules generate electricity even on cloudy days
Many believe that solar modules only work under bright, direct sunlight. In reality, they generate electricity even when it’s cloudy. While production is lower on such days, diffused and reflected sunlight still reaches the modules, allowing them to continue producing power.
2. Solar modules can last for more than 30 years
High-quality solar modules can efficiently produce energy for three decades or longer. Modern glass-glass modules often come with a 30-year warranty, but even after this period, they can still generate up to 90% of their nominal power.
3. Solar modules can be integrated into noise barriers
Recently, the first pilot projects were launched in Lithuania where solar modules are installed into noise suppression barriers—for example, along railways or highways. These solar energy solutions do not take up extra space; they reduce noise while simultaneously generating renewable energy.
4. Solar modules help cool roofs
When installed on a roof, solar modules act as an additional protective layer. By absorbing a portion of the solar radiation, they protect the roofing material from extreme temperatures. This can actually help keep the building cooler during the summer months.
5. Solar modules can be made from recycled materials
Some manufacturers use recycled materials in their production processes to reduce their $CO_2$ footprint. For instance, glass, cells, and aluminum can be recycled and reused to manufacture brand-new solar modules.
6. Solar modules can be installed virtually anywhere, and power plants can be mobile
There are solutions that allow for portable solar power plants to be mounted on trailers or containers. These setups are especially useful at construction sites or events where temporary electricity is needed. It’s worth noting that when considering a mobile solar plant, an energy storage system is essential. This allows the plant to "wake up" in the morning and store unused electricity to be used in the evening or during rainfall.
7. Solar modules can generate electricity from artificial light
Although efficiency is significantly lower under such conditions, laboratory tests have proven that some solar modules can generate electricity even from LED or fluorescent lamps. This opens up new possibilities for specific industrial applications.
8. Solar modules can be used on water
Floating solar power plants installed on bodies of water are becoming increasingly popular worldwide. They allow for the efficient use of otherwise unused water surfaces while simultaneously reducing water evaporation. In Lithuania, however, this application is quite complex due to water bodies freezing in winter. If floating plants are not moved to shore before winter, the expanding ice and its movement during spring thaws can crush the platforms or pontoons. It is also recommended to use only glass-glass modules for water installations, as they are more durable than modules with a film backing.
9. Solar modules can help increase crop yields
In summer—especially in Southern European countries—vegetation suffers most when temperatures jump above 30°C. Prolonged heatwaves can kill delicate plants, leaving farmers without income. Consequently, more farmers are reducing these losses by installing semi-transparent solar modules over their crops. This not only protects plants from excessive heat but also reduces soil dehydration and the need for irrigation. Furthermore, these modules protect crops from the heavy rains and hail that often accompany sudden weather changes.
10. Solar modules can be installed on vehicle roofs
While car roofs are often small, some electric vehicles already feature integrated solar modules that can extend driving range or power auxiliary systems. This is even more effective for trucks and buses, where the available surface area for solar modules is larger, leading to greater benefits.