In today’s era, solar panels are not just a luxury but a fundamental necessity for every home and factory. To get rid of rising electricity bills, people are rapidly shifting towards solar energy. But do you know how this technology works, and has any such technology really arrived that can generate electricity at night as well?
The Beginning of Solar Technology
The concept of solar technology is very old. It started in 1839 when Edmond Becquerel discovered the photovoltaic effect. However, the commercial use of solar cells began in the 1950s, and today this technology has become so advanced that we can light up entire cities with it.
How do solar panels generate electricity?
Solar panels are made of a material called silicon. When sunlight (photons) hits these panels, it excites the electrons present in the silicon atoms. This movement generates electricity, which we convert into AC current through an “inverter” to run our household appliances.
Have solar panels that generate electricity at night arrived?
This is a very common question that most people misunderstand.
Reality: Currently, ordinary solar panels cannot directly generate electricity at night because they need sunlight to function.
Role of Battery: The system currently working in the market is a “hybrid” or “off-grid” system. In this, solar panels generate electricity during the day, run household appliances, and simultaneously charge large batteries. Then at night, the house runs on the electricity stored in these batteries.
New Experiment: Scientists have definitely experimented with some panels that can generate a very small amount of electricity at night through “thermal radiation,” but this technology is not yet common on a commercial scale and is not enough for homes.
Why has solar become the need of every home?
Reduction in electricity bills: This is a one-time investment that pays for itself in a few years.
Eco-friendly: It does not cause any pollution.
Self-reliance: Instead of relying on WAPDA or the grid, you generate your own electricity.
What should you do?
If you want to get your system installed, always choose quality batteries (like lithium batteries) and good inverters. Lithium batteries last longer than old lead-acid batteries and provide the best electricity backup at night.
Are you also thinking of installing a solar system in your home? Ask your questions in the comments!
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