Does Solar Power Work Efficiently in Low Light Condition

There’s been a lot of excitement about solar energy in recent times. Many new innovations, lowering cost of ownership and government policies to incentivise use of solar energy for homes and offices has led to a sharp increase in the use of solar energy in India. However, most consumers still have doubts about the efficiency of solar energy in less than ideal conditions. But is it true, or is it just a myth? Let’s dive deeper into the topic and find out – does solar power work efficiently in low light conditions.

Solar energy in India – 300 days of sunshine

India gets about 300 days of sunshine on an average. Which means that we get about 5000 trillion kilowatt hour of solar energy in India every year – that’s more than 500 times surplus than the present energy consumption of the entire country. Imagine what we can do with that much energy and it’s practically free compared to the $330 million per day India spends on oil and gas imports. On top of that, if we consider the ramifications of the air and water pollution caused by oil, gas and coal run power generation plants, the cost incurred by the country and the people increases manifold. Solar energy in India is the perfect answer to the rising costs of imports, energy needs and the environmental effects of using fossil fuels to produce energy.

Know your solar power

Most people believe solar power works best in hot weather only, but that’s not entirely true. Solar PV (photovoltaic) cells are designed to harness the light of the sun, not the heat. Different kinds of PV cells made of different materials have varying degrees of efficiency and costs. To decide which one is best for you, you have to figure out how much energy you require, and for what purpose – home, office or industrial use. Do some research on the internet, or ask your solar engineers about it. The best solar engineers always know the right solutions suited to your specific needs and will advise you accordingly.

So, does solar power work efficiently in low light

The simple answer – yes, it does. Here’s how. Solar PV cells work with the light from the sun, not the heat. It doesn’t matter how cold the temperature gets, whether it is cloudy or foggy outside, or whether there’s rain and snow. In fact, solar PV cells perform better in less heat. All they need is a sunlight and you will get your uninterrupted electricity supply from your solar cell array. You can further maximize this output by consulting with your solar engineer to setup your solar inverter for home or office use with better quality charge collectors and batteries.


Rain and snow are no big deterrents for solar energy in India either. Since the solar arrays have a smooth surface, rain and snow do not accumulate on them, ensuring that your electricity supply is not interrupted. There is, of course a marginal drop in efficiency as the sun light gets diffused by the water droplets or snow crystals in the atmosphere. Since snow is not a problem, and rain is mostly limited to the monsoons in most parts of the country, solar energy in India is an excellent alternative to get uninterrupted energy supply even in the most remote parts of the country.

During the winters when days get shorter, your solar arrays will get less time to produce energy through the day. As a result, you might witness a marginal drop in your solar array output. Efficiency loss is also evident during foggy winter days as the fog prevents the sunlight from reaching the earth’s surface properly. However, this condition, however is mostly limited to North India, especially in cities like Delhi and Chandigarh. Cities like Bangalore, Chennai, Kerala, Hyderabad and their surrounding areas in South India don’t witness foggy days as compared to the northern cities. However, being prepared to counter the effect of fog or cloudy weather is always a good idea. Choose solar PV cells that have been specifically designed for high output in such conditions as well and you will essentially set up your solar power system to produce clean energy for you even in adverse weather conditions and thereby increasing the return on your investment.

In conclusion

Thin crystalline silicon solar panels work fairly efficiently even in low light, ensuring that your investment in solar energy for your home and office delivers you the high returns that you expect. Although, these crystalline silicon solar panels are little more expensive than other type of PV cells, they make up for the cost in their returns to you in the form of clean energy throughout the year.

At Brihat Energy, we pride ourselves in bringing you the best solar energy products and services to ensure that you can reduce your carbon footprint and enjoy unlimited supply of energy at nearly zero costs over the years to come. Our engineers are highly trained and know exactly how to turn your home into a beacon of clean energy with our solar products and services. We are committed to making India clean and completely  self-reliant in its energy needs with solar energy for every household.

Call us or write to us to know more about how you can turn your rooftop into your own personal power plant with abundant, clean and free energy for your home and office and help you in leaving a better planet for the future generations to come.