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How to Make Solar Panels More Efficient

How to Make Solar Panels More Efficient

Short on Time? Here’s The Article Summary

The article discusses strategies to increase the efficiency of solar panels, highlighting that only 15% of absorbed sunlight is converted into electricity. Improving efficiency is crucial for off-grid living and reducing electricity bills. Suggestions include using high-quality, newer solar panels, incorporating green roofs to cool panels and increase efficiency, using bifacial panels that absorb light from both sides, employing solar concentrators and mirrors to increase light intensity, and implementing auto-tracking systems to follow the sun's path.

Additionally, advancements like perovskite layers can boost efficiency to 33-40%, while solar roofs, though initially expensive, can pay for themselves over time. Increasing efficiency reduces the number of panels needed, lowering overall costs and environmental impact. The article concludes that efficient solar power generation can revolutionize energy production and consumption.


When using solar panels, only 15% of the sunlight absorbed gets converted into electricity. The rest hits the solar panel and warms the surface. Because we want these panels to generate more electricity, we need to have a closer look at how to make our solar panels more efficient.

This is beneficial to mankind in the sense that houses can go off the grid. There would be no need to pay electricity bills that are constantly on the rise. The more efficient the solar panel is, the more energy output it has.

This form and quantity of electricity is the goal so that household energy requirements are met. Here we will propose some suggestions for you to consider doing just that.

How to Increase Solar Panel Efficiency

Like everything else in our fast-paced world, solar-energy generators are constantly improving. Therefore, those on the market differ in quality because some are old and some are made with new material. This alters the amount of energy generated.

how to increase solar panel efficiency

When buying solar panels ask lots of questions, like how long do solar panels last. Knowing this information upfront is beneficial in the long run so you have a proposed expiry date you can budget for.

Green Roofs

The micro-climate around the solar panels is important because when it gets too hot outside, solar panels lose efficiency. This, of course, isn’t good because it won’t perform as expected and results in less energy generated.

When the solar panels get installed near foliage, it works even better. The plants stop the panels from overheating, keeping them cool which makes them around 5% more efficient than panels without green foliage.

This is significant when calculating solar panel output voltage as it stops the panels from overheating. Green rooves not only improve performance but also increase biodiversity, attracting a wide range of insects, birds, and bees.

Use Both Sides of the Solar Cell

As we know, solar energy is beaming radiation light as well as heat from the sun. 

Most solar panels use a standard white or black backsheet for steady backing support to which the solar cells are attached.

Some panels are clear on both sides and can absorb light from either side. This technology is also known as “bifacial” which means both sides of the solar cell can absorb light.

Solar Concentrators

With a solar concentrator, the sunlight is more intense. It takes a large area of sunlight and directs it towards a specific spot having the light more focused on each solar cell. This makes the cells vastly more efficient.

Luminescent Solar Concentrators gain control of sunlight in places without consistent exposure like buildings in cities. They look like transparent glowing acrylic with a bright edge.

It’s made up of a fluorescent material that absorbs sunlight and re-produces it at longer wavelengths. The reflected light is captured by solar cells positioned on the edges and electricity generated. 

Fewer cell materials are used which results in low-cost optics, yet increased output.

Solar Mirrors

Mirrors increase the light intensity and therefore are often used in solar systems. They raise the temperature, which raises the thermal efficiency of the system.

Therefore, the mirrors reflect more light onto the solar panel area. A solar mirror contains an underlying layer that reflects solar energy.

How much energy do solar panels produce is a common question because they are all different? But most solar panels on the market usually produce between 250 and 400 Watts of power.

The output significantly depends on factors like shading, where it's positioned, and the amount of sunlight it gets.


Auto-Tracking is great because it follows the sun as it moves. It also increases the duration of radiant energy absorption.

Tracking the sun at the highest accuracy degree ensures that concentrated radiant energy is correctly absorbed by the solar panel. Usually, a solar tracker will make a solar panel around 40 percent more efficient.

Solar Panel Quality

Because solar panels are made up of many components, manufacturers can make solar panels more efficient by enhancing the solar cells. They can also improve the way the cells are placed in the panel.

There are many improvements in solar technology in the pipeline and these are just a few of the improvements that different producers use to increase solar panel efficiency.

You can also use solar panels to charge batteries. But you need to know what size solar panel to charge 12v battery.

The potential of silicon solar cells is approximately 30%, but when you add perovskites layers to that, it achieves efficiencies closer to 33-40% if they are doubled up. These perovskites are better at harvesting sunlight, so you get high performance and it’s cheaper.

Solar Roofs

Although an expensive start-up, solar roofs are the only roofs that can help pay for themselves with the energy produced from the sun. If you install a solar roof, you can basically power your home with this entirely.

improve solar panel efficiency

Your whole roof can be made from solar panels and in doing so, it can potentially eliminate your electricity bill.

Capturing More of the Light

With higher efficiency, fewer panels are needed to be installed to reach the desired power target. This means less land, less labor, and fewer hardware materials all, resulting in solar power efficiency.

Different solar cell materials react to incoming light differently, but boosting efficiency is a definite way to reduce the cost. If we can generate electricity from the sun both efficiently and on-demand with the help of solar panels, it will have a major impact on the way forward. 

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