What Solar Panels to Buy: An Insider’s Guide to Making the Right Choice

Quantum Duo Solar Panel Installer Sleaford
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Investing in solar energy is an intelligent decision for a multitude of reasons: it’s a step towards a greener planet, it leads to significant savings on electricity bills, and it contributes to energy independence. However, deciding what solar panels to buy can be a bit confusing, especially for beginners. But fret not. We are here to guide you through the journey. This comprehensive guide will help you understand and choose the best solar panels for your needs.

Understanding Solar Panels

Solar panels are devices that convert sunlight into electricity. They’re typically composed of many smaller units called photovoltaic cells (PV cells), which convert sunlight into electricity. This transformation happens due to the ‘photovoltaic effect’, a physical and chemical phenomenon that occurs when certain materials are exposed to light.

There are three main types of solar panels, each with its own advantages and disadvantages: Monocrystalline, Polycrystalline and Thin-film.

Monocrystalline Solar Panels

Monocrystalline panels are made from a single crystal structure. They offer the highest efficiency rates since they are made out of the highest-grade silicon. Their efficiency ranges between 15-20%+. Monocrystalline solar panels are also space-efficient. Since these panels yield the highest power outputs, they require less space compared to other types. However, they are also the most expensive of the three types of solar panels.

Polycrystalline Solar Panels

Polycrystalline panels are made from multiple crystal structures. They are less efficient than monocrystalline panels (typically around 13-16%), but they are also less expensive. The trade-off here is between efficiency and cost. If space isn’t an issue for you, polycrystalline panels can be a good choice.

Thin-Film Solar Panels

Thin-film panels are the least efficient of the three (typically around 10-12%), but they are also the least expensive. They’re flexible and lightweight, making them useful for certain applications where weight and flexibility matter. However, their lower efficiency means that you’ll need more panels (and thus more space) to generate the same amount of electricity.

Factors to Consider When Buying Solar Panels

While understanding the types of solar panels is essential, there are several other factors you should consider before purchasing:


Efficiency refers to how well a solar panel converts sunlight into electricity. The higher the efficiency, the more electricity you’ll get out of a given amount of sunlight. As mentioned before, monocrystalline panels are the most efficient, followed by polycrystalline, and then thin-film.


The upfront cost of solar panels can be substantial, but you should also consider the long-term savings. More efficient panels might cost more upfront, but they can generate more electricity and thus lead to more savings in the long run.


Space availability plays a crucial role in the decision-making process. If you have limited space, you might want to opt for more efficient panels. But if space isn’t a concern, you could save money by buying less efficient, but cheaper panels.


Different brands offer various guarantees and warranties, and their products come with different levels of build quality and reliability. It’s essential to choose a well-respected and reliable brand to ensure the longevity of your investment.


Solar panels are a sustainable energy source, but some panels have a more significant environmental impact than others. Thin-film panels, for example, often contain toxic materials and have a shorter lifespan than crystalline panels.

Top Picks

Taking into account the factors previously mentioned, here are our top solar panels made by Q-Cells, JA Solar, and Sharp:

1. Q-Cells Q.Peak DUO-G6+

The Q.Peak DUO-G6+ is an excellent monocrystalline panel from Q-Cells. Its innovative Q.ANTUM DUO Technology allows the panel to reach efficiency levels of up to 20.1%, an impressive figure for residential solar panels. This panel is also equipped with excellent temperature coefficients and is known for its durability, performance under low light, and aesthetics. Although it’s on the expensive side, it’s a solid investment for homeowners seeking high performance and reliability.

2. JA Solar JAM60S10 MB

JA Solar’s JAM60S10 MB, a monocrystalline solar panel, offers high performance at a reasonable price point. It has an impressive efficiency of up to 19.2% and features a sleek, black design. With a positive power tolerance and an extended 12-year product warranty, this panel offers excellent value for those looking for a balance between cost and efficiency.

3. Sharp NU-JC330

Sharp’s NU-JC330 is a high-efficiency polycrystalline panel, delivering a module efficiency of up to 16.9%. With an extended performance warranty of 25 years and being manufactured by a company with a long track record in the solar industry, it’s a dependable choice. Its robust design can withstand various weather conditions, making it a reliable choice for homeowners in diverse climates.

Choosing the right solar panel requires a careful evaluation of various factors such as efficiency, cost, available space, brand reputation, and sustainability. Solar energy is a substantial investment, but equipped with the right information and guidance, it can lead to significant benefits.

At Eagle Electrical, we’re dedicated to providing you with the most efficient, cost-effective, and reliable solar solutions. Whether you’re a homeowner seeking to offset your energy bills, or a business aiming for sustainable energy solutions, we’re here to help you navigate the world of solar energy. Reach out to us today and start your journey towards a more sustainable future.

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