Have you ever wondered why the majority of solar panels are black or blue? These colours aren’t artificially incorporated into solar modules for aesthetic effect, rather they are a result of how the panels are manufactured.
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So why are we seeing black rooftop solar panels becoming more commonplace than blue ones? In this post, you can find out all about the increasing use of black solar panels, including pros and cons, and costs.
Traditionally, solar panels had a shiny blue appearance. These panels are made with polycrystalline solar cells.
The blue appearance is due to an anti-reflective layer added to the panels to optimise light absorption and power output. However, blue solar panels are still not as energy efficient as black solar panels, and this is why solar arrays installed nowadays are mainly black.
Black solar panels are made with monocrystalline solar cells, whose greyish colour darkens during the manufacturing process.
Besides the solar silicon cells themselves, the overall look of solar panels is also determined by the type of frame and backsheet.
The solar panel frame holds the various components together, protecting them from the elements. The backing sheet provides additional protection for solar cells.
Solar panel frames are usually made with aluminium, which is naturally a silvery-white colour, though they can also be designed to be black. Solar panel backing sheets can be black or white.
The cheapest solar panels have silver frames, which are conspicuous, and white backing sheets that are visible between the solar cells. But solar panel frames and backsheets can be configured to produce monocrystalline panels that are mostly black or entirely black.
Solar panel manufacturers and installers are now offering black frames in response to public demand. Colouring the frame black gives solar panels a more discreet look that’s often the preferred choice for contemporary homes in suburban locations.
However, a white backing sheet remains visible between the solar cells, giving something of a chessboard appearance. However, white backsheets improve solar performance by reflecting sunlight back into the solar cells.
All-black solar panels use a black backing sheet with a black frame. This gives the panels a sleeker look but reduces efficiency slightly because they capture less light.
Nevertheless, the monocrystalline solar cells are more efficient than polycrystalline panels, and all-black panels are overall only 0.5% less efficient. The only major difference between all-black panels and panels with a white backsheet is the aesthetic.
Monocrystalline solar panels with black frames and black or white backing sheets hold advantages over blue, polycrystalline panels in terms of efficiency, lifespan, visual appeal, and heat resistance.
Energy efficiency of a solar panel is measured by how much light it turns into electricity. Higher energy efficiency is the most important benefit of black solar panels. The high-grade, pure silicon of monocrystalline cells in black solar panels are around 24% energy efficient, compared with 15 to 20% efficiency of blue panels.
Black solar panels also typically perform better in shaded areas and in overcast or cloudy weather because they are more efficient at capturing diffuse light. This results in higher energy output compared with blue solar panels in similar conditions.
Black solar panels have a longer lifespan than blue panels because their monocrystalline cell structure is less susceptible to breakdown. Black solar panels can last 30 to 40 years or longer, compared with the average 20 to 25 years of blue solar panels.
Many homeowners believe the sleek look of black solar panels is more stylish and visually attractive than blue panels. Black solar panels tend to blend in better with surrounding roof tiles, particular on darker-coloured roofs.
Black solar panels are more heat resistant than blue panels. This is becoming increasingly important as climate change drives higher temperatures that can reduce solar cell power output by 10 to 25%.
Although black, monocrystalline solar panels offer several benefits compared with blue, polycrystalline panels, they also have drawbacks when it comes to cost and the manufacturing process.
The main disadvantage of using black solar panels is the price. Installation costs for black solar panels average £370 to £450 per square metre, compared with £300 to £350 for blue solar panels.
However, the lower price of blue solar panels comes at the cost of inferior efficiency. You’ll need sufficient roof space to install more blue solar panels to get the same amount of electricity.
And savings on energy bills will be less because you’ll be relying more on the national grid. This means it takes longer to see a return on your investment.
Manufacturing black solar panels is less eco-friendly than the production of blue solar panels. Making monocrystalline solar cells results in silicon wastage that can’t be repurposed to make other black solar panels.
The production of blue solar panels also requires less energy and emits fewer greenhouse gases.
Dyes and colour coatings can be used to produce solar panels in shades other than black and blue.
These solar arrays are becoming increasingly common in some parts of Europe and the United States, but they cost more to make and their availability in the UK is generally limited to specialist solar panel manufacturers and installers.
This is because the vast majority of UK homeowners go solar to reduce energy costs. So the potential aesthetic benefit of making solar panels available in a range of colour options is cost prohibitive.
The fact that solar panels are predominantly black or blue has nothing to do with aesthetic preferences of the manufacturers. These colours are the result of the silicon solar cell production process. However, solar technology is constantly advancing, and this could lead to a wider range of less costly solar panel colours in the future.
The choice between black solar panels and blue solar panels comes down to your priorities, budget, aesthetic preferences, and energy requirements. Black panels cost more but offer a sleek appearance and provide better energy efficiency, which saves more money on electricity bills.
Blue panels are cheaper but less efficient, and some people are put off by the visual impact of their shimmering appearance.If you have a limited budget and plenty of roof space, blue solar panels could be a good choice.
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On the other hand, black solar panels may be right for you if:
If you want to install black solar panels but are concerned about the extra cost, there are ways to make them more affordable. These include free site surveys and quotes, and spreading the cost with a finance package. Contact Effective Home if you’d like to take advantage of these options.
Bear in mind there’ll be no VAT charges on solar panel installation until March so there has never been a better time to go solar than now.
Black solar panels are a great option for those who can afford them as they absorb more energy and are more heat resistant than polycrystalline panels. However, their material structure also makes them more expensive for the average consumer. Let’s look at some of the costs, advantages, and disadvantages of these panels compared to others.
However, if you’re looking for all black solar panels in the UK, we can help with your search. One of the main problems with purchasing solar panels and solar batteries is finding reliable installers, which can often take days of looking up companies and comparing their offers. If you (like most people) don’t have time for that, our service could come in handy.
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Get your best dealQuickly compare 4 FREE quotesWhen comparing solar panels, black ones have an edge over blue panels in terms of efficiency, heat resistance, and power. This is primarily due to their monocrystalline (mono) structure, where each cell is made of a single crystal of silicon, manufactured specifically for the cell. This allows for better sunlight absorption.
Solar Panel EfficienciesBy most measures, black mono solar panels outperform their competition in commercially available solar systems. Sporting an efficiency of around 20% (sometimes as high as 22%). They beat out both polycrystalline panels (20% efficiency) and Thin-film panels (7% to 10%).
The image below compares different solar panel types:
While polycrystalline and thin-film solar panels are cheaper, they lack the lifespan, temperature resistance, and power output of monocrystalline solar panels.
The advantages of solar panels usually come from their efficiency and output so black solar panels fare quite well against their competition, with their main issues being expenses and the manufacturing process. We’ll cover the advantages and disadvantages of black solar panels in more depth below.
Black solar panels can be 3 times as expensive as thin-film solar panels, but they also sport an efficiency that matches the price. Polycrystalline panels can be two-thirds of the price of monocrystalline panels, but they are not as efficient and do not possess other positive attributes such as higher heat resistance.
Cost of Solar Panel Types Type of panel Price Black/Monocrystalline solar panels £370 to £450 per m² Polycrystalline solar panels £300 to £350 per m² Thin-film solar panels £120 to £300 per m²Another way to view it is through size in both dimensions and power output in Watts (W).
Price of black solar panels PV Size of Solar Panel Dimensions (estimate) Price per panel 400W 2m2 £600 - £900 250W 1.4m2 £300 - £500400W all black solar panels can cost between £600 and £900 depending on the manufacturer, while 250W panels can cost between £300 to £500. You can go through our pick of the best solar panel manufacturers to get some idea of the available options.
While solar panels can be expensive, there are ways to make them relatively affordable. If you want to keep solar panel costs low, you’ll need to find a reliable installer who won’t overcharge you. However, this can take days of extensive research and price comparisons if done on your own. That’s where our service comes in.
We can streamline your search so you can sit back and relax. We can provide you with up to 4 free, non-binding quotes from thoroughly vetted installers in your area. Fill out a 30-second form and get multiple prices to choose from. Click the button below to get started.
Get your best dealQuickly compare 4 FREE quotesPros:
Cons:
Despite the higher level of investment they require, black solar panels are one of the most popular types for a reason. They are powerful and absorb more sunlight than most of their competition while still being fairly commercially available (unlike CVP solar systems).
They are better for commercial applications and have a shorter payback period. They also tend to take less space for the same power output allowing for more black mono solar panels on a roof solar system. If the relative cost is dissuading you from the purchase, government solar panel grants might be able to mitigate some of the costs.
Overall, they are a worthwhile investment and last longer than most other panels.
If you’re looking for solar panels, whether black or polycrystalline, you’ll need to find the right person for the job. Solar panels are quite an investment, which is why you need a reliable installer who will give you fair prices and get the job done. Ordinarily, finding one can take days of researching companies and comparing their prices but we can offer a quicker, easier method.
Our service can provide you with up to 4 free, non-binding quotes from reliable companies and all you need to do is fill out a 30-second form. To ensure you’re not being overcharged, we give you access to multiple quotes from thoroughly vetted and reputable installers in your area. Click the button below to get started.
Get your best dealQuickly compare 4 FREE quotesYes. When it comes to commercially available solar panels, all black ones are more expensive since they are monocrystalline. However, there are many reasons they are worth the investment.
Silver is far more reflective, so black solar panels perform better and absorb more sunlight, giving them higher efficiency and power generation capabilities. Despite their cost, they are a better option.
The main disadvantage of black solar panels is that they cost more than most other types. However, when comparing solar panels, they have many advantages and are a popular choice.
Due to their darker colour, they absorb more heat. However, black solar panels are also monocrystalline, which means they have higher heat resistance, among many other advantages.