Solar panels that can also generate electricity in rainy days

- Jan 22, 2019-

In general, solar panels are only suitable for use in sunny natural environments. It is not good to use in cloudy or rainy days; some batteries (such as Tesla's “firewall” batteries) can store electricity, It is used in rainy days or at night, but for some areas where there is insufficient light, this technology is of little value both in terms of efficiency and cost.


The new solar panels developed by Suzhou  University can solve this problem better. According to reports, they used a new technology called "Tram Nano Generator (TENG)" in the manufacture of solar panels to capture the energy generated when the raindrops fell. A nanogenerator is a device that converts mechanical energy into usable electricity, which can be achieved on a small scale using rainfall. This solar panel using TENG technology is still light enough to be mounted on the roof. R&D personnel embed a barrier made of different transparent plastic or polymer materials between TENG and the solar cell. Since the structures of several layers are connected, each can operate independently, so that the solar panels can generate electricity under different weather conditions.


The bottleneck that currently affects the promotion and application of this new technology is the high production cost of the product. If it can be solved, even in areas that are considered to be unsuitable for collecting solar energy due to insufficient light, solar energy can be an efficient and clean new energy source.


Expert analysis believes that despite the constraints of weather conditions, solar energy is still one of the fastest growing energy sources in the world. The cost of installing commercial solar panels has dropped by 58%. It is estimated that by 2040, renewable energy generation will account for 40% of global power generation, so the development prospects of this new technology are very promising.