With the recent temperatures reaching up to 45 degrees in some parts of the country, some people may wonder, how does heat affect their solar panels?

First, we have to understand how solar panels function. Although sunlight and heat are always correlated to each other, these two factors affect the performance of your solar energy system differently. While heat does not reduce the amount of energy harvested by your panels, it does have an impact on how energy is produced inside the cells. This is because solar panels generate energy through the sun’s light and not heat. In fact, the higher the temperatures, the lesser the efficiency of your solar panels which causes energy losses and a drop in your system performance.

Temperature Coefficient

Temperature Coefficient

A solar panel’s performance relative to a given temperature or temperature coefficient varies from brand to brand and is important in calculating an accurate production level of your solar energy system, which is why it is important to choose the best solar panels for your roof that will be efficient given the tropical climate of the Philippines. Most of the solar panels that Solaric offers has a coefficient between -0.35 to -0.5. The temperature coefficient will tell you how much power a solar panel loses for every 1° increase in temperatures above 25°C.

For example, a solar panel has a temperature coefficient of -0.35% per 1°C. So with every one-degree increase above 25°C, the solar panel’s efficiency will decrease by 0.35%.

Reducing the heat’s effects

Reducing the heat’s effects

The effects of heat on your solar energy system is inevitable especially during the summer when the heat is on its peak which is why it is important to look for an experienced and knowledgeable solar provider that will correctly install solar panels in your roof. The right installer will install panels at the right angle to make sure you will still be able to harvest the maximum sunlight as possible while allowing a convective air flow to cool the panels. They can also provide you multiple options on solar panels, inverter brands and system size system that will allow you to enjoy your solar energy system at its fullest. Another tip is to apply ceramic paint coats on your roof. These are just some of the tips you should know to answer the question “How does heat affect solar panels?”

Turning on the sun

At Solaric, we appeal to Filipino sensibilities of approachability, service and value. Before we give a quotation, we learn how you use energy. We determine the best ways to maximize your return on a hard-earned investment. We present different strategies to ensure that you achieve your solar goals. We want to ensure reduced expenses and increased savings so that you make that one-time wise business and environmental investment. We always do our best to deliver fast, efficient, and thorough customer service. We are in the business of not just selling solar panels – but also enabling solar-powered lifestyles. With this, we want to provide endless satisfaction by delivering Solaric Service Satisfaction, ranging from permanent reduction of electric bills to the ultimate ZERO bill.

Solaric is the leader in rooftop solar

Solaric has established its name across the renewable industry as a proven and reputable rooftop solar leader. Backed by decades of experience, Solaric has installed more than 50% of residential rooftop solar in the Philippines and has delivered significant cost reductions in electricity expenses, as well as milestone contributions to a cleaner, greener, and renewable future. We want every Filipino to enjoy the benefits of clean and renewable power. Welcome to the new generation of solar and turning on the sun.

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Call Solaric now if you want to start your Zero Bill journey:

Give us a call at 75040092 or 09178603141 or 09083775577, email or visit

We will gladly explain to you how the system works, or schedule a survey so we can give you options for your new home or existing homes or businesses.

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At Solaric, we Turn on the Sun.


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