How Solar Panels Can Lower Your Electricity Bills

Last year, domestic solar energy in the United Kingdom has seen tremendous growth and is shaping up to be a similarly big year. Not only do solar panels help shrink carbon emissions and reduce our reliance on the grid but they can also help you save money on our electricity bills.

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How Do Solar Panels Work?

Solar panels work by converting sunlight into electricity. The panels consist of photovoltaic cells that absorb sunlight and transform it into direct current electricity. Then, an inverter converts this electricity into the alternating current electricity you can use in your home or feed back into the grid. To use solar power, you need to install solar panels on your roof, in your garden or somewhere on your grounds where they are angled towards the sun.

Despite being around for years, the growth of solar panels has been slow. With the reasonable prices for home energy batteries and an overall increase in electricity prices resulting from the Russian invasion of Ukraine, the sector is now experiencing a revival. In , solar panel installations in the UK doubled to reach the highest levels since . More than 1.2 million UK households have them on their roofs &#; the equivalent of 4.5% of houses.

How Much Do Solar Panels Cost?

On average, installing solar panels will set you back between £5,000 and £10,000 (approximately between US$6,330 and $12,700), with a cost of about £786 (US$995) per 350W panel. Depending on the size and occupancy of your house, prices might also be a bit higher. For a three-bedroom house, you can expect an average solar system price of £7,860 (US$9,950).

Variables such as the roof size, the location of your house, and the type of hardware all influence the costs of panels. The reason why so many people are choosing to invest in the technology now is that solar panels will provide most of the energy you need at home. With the excess power exported to the grid, it is even possible to make money through the Smart Export Guarantee. This scheme has replaced the feed-in tariffs that were in place before. In addition, solar panels will cut your home&#;s carbon footprint and improve its energy performance (EPC) rating, increasing the value of the property.

You might also like: 14 Interesting Solar Energy Facts You Need to Know 

How Much Can You Save With Solar Panels?

Homeowners can reduce their energy bills by up to 62% with solar panels. This means that renewable energy is a great purchase for cutting costs while also reducing carbon emissions. Despite the relatively high up-front costs, your investment will break even in a short time span of around 8 to 9 years. Once you hit that break-even point, you will start to see profits from having panels but even before then you will notice a reduction of well over half in your energy bill.

The amount of money you can save on your electricity bills with solar panels depends on several factors, such as the size of the system, the amount of sunlight your property receives, and the cost of grid electricity. On average, homeowners with solar panels can save around £450 a year in electricity bills. And if you export excess electricity back to the grid, you could make another £600 to £700 (US$760-$886) a year. According to The Guardian, smart power use, such as running the washing machine in peak sunshine and using discounted off-peak electricity, could reduce most household&#;s electricity bills from an average of £1,200 (US$1,519) a year to only £200-£400 (US$253-$506).

According to The Eco Experts&#; latest National Home Energy Survey, over two-thirds of Brits said that they would like to buy a property with solar panels. The idea of generating your own electricity is particularly attractive in current times, where we all face challenges such as rising energy prices (the next increase is expected in July ) and uncertainty about the reliability of the grid.

The Advantages and Disadvantages of Solar Panels

When looking at the potential savings that solar panels offer, it is hard to think of any reasons against them. The renewable energy technology also brings benefits such as reduced carbon footprint, meaning everyone can contribute to mitigating the effects of climate change. With solar panels, we reduce our reliance on fossil fuels, which are a finite resource and contribute to climate change. The panels also bring increased energy security and less dependence on the grid.

However, it is important to also be aware of the drawbacks of solar panels:

• Upfront costs:

  The installation of panels can be expensive. It will take several years to recoup the initial investment through electricity bill savings and earnings through the Smart Export Guarantee.

• Space requirements:

  Solar panels require a significant amount of space, ideally on a south-facing, unshaded roof. This might not be practical for all properties.

• Weather dependency:

  Solar power relies heavily on sunlight to generate electricity. In areas with less sunlight and in winter, the panels are less effective.

• Maintenance:

  Solar panels require regular maintenance to ensure that they are working efficiently and safely. Annual servicing is recommended.

Are Solar Panels Worth It?

Solar panels are one of the best ways to reduce your electricity bills and do something good for the environment. While there are some drawbacks, such as the upfront costs and weather dependency, the financial and environmental benefits as well as the increase of a property value convince many homeowners to give solar power a try. It is always important to do your own research.

When wondering whether panels are worth it, the rule of thumb is that if you generate enough electricity and stay in the same house long enough, the investment will pay off. Consider your home&#;s electricity needs, the necessary size of the solar power system and any financial incentive schemes, regionally or nationally, before you make the decision. No matter the situation, solar energy in the UK is worth it for monetary benefits, for protecting the environment, and for reducing your carbon footprint. 

More about the topic: What Are the Advantages and Disadvantages of Solar Energy?

The difference between 60 cell and 72 cell solar panels is simple: 72-cell panels are 12&#; taller and contain 12 more solar cells.

There are many different types of solar panels available on the market, with options ranging in efficiency, wattage, manufacturer, appearance, and more. Panels can also vary in the number of silicon cells they have. Today, most people install either 60 or 72 cell solar panels for their installation- but what&#;s the difference between the two, and which option is best for your installation?

If that seems too obvious, I promise you: that&#;s pretty much all there is to it.

But there&#;s a reason we&#;re devoting article space to such a simple topic.

I was designing a system for a residential customer last week when she asked me, &#;I can&#;t use 72-cell panels at my house, right?&#;

For some reason, she had the impression that 72-cell panels are only for commercial use. Which couldn&#;t be further from the truth.

After some back-and-forth, I realized she had read a few articles online to help her decide which size panel to use. Turns out one of them had claimed 72-cell mono solar panels were only for commercial use, and require special hardware and extra labor to install.

None of which is remotely true.

So I wrote this article to help set the record straight.

Dispelling myths about 72-cell solar panels

The big myth floating around the Internet is that 72-cell solar panels are not made for residential use.

That&#;s simply not true. In fact, roughly half of all residential systems we design at Prostar Solar have 72-cell mono solar panels in them.

It&#;s true that commercial applications lean toward 72-cell panels. They require less racking rail, fewer electrical connections, and fewer clamps to secure in place. That means 72-cell panels are cheaper to install on a large scale.

But there&#;s no reason residential customers can&#;t get the same benefits from a 72-cell solar panel.

If you want to learn more, please visit our website Eco-Friendly 72 Cells Solar Panels.

Are 72-cell panels harder to install?

I&#;ve also read claims that 72-cell panels are harder to install. This concern is somewhat overblown.

Yes, 72-cell solar panels are a bit bigger and heavier. But it typically takes two people to move and set a solar panel in place, regardless of size. Since there&#;s usually 2-3 people on an installation crew, finding a way to move the panels isn&#;t much of an issue. Any crew worth their salt will be able to handle the larger panel size.

Though the work may be a bit more physically taxing, the install tends to take less time overall. Since the system contains less panels, you&#;ll spend less time making electrical connections and fastening clamps.

You don&#;t need to buy stronger racking to support larger panels, either. Solar panel racking is universal. The size of the panel you choose will not limit your mounting options.

While it is possible to buy a thicker rail, we only recommend that option to provide a stronger foundation in areas threatened by hurricanes, heavy snow and other extreme weather conditions.

You don&#;t need to spend more on &#;heavy duty racking&#; just to support heavier 72-cell panels (which is a very common misconception). The standard options will work just fine.

In fact, in most cases 72-cell panels will actually save you money on racking. Modules are mounted with rails running across the width of the panel. Because 72-cell panels have the same width as 60-cell panels (about 40&#; wide), they require the same amount of racking material to mount more solar power.

When to choose 60 cell and 72 cell solar panels

If the only difference between 60- and 72-cell solar panels is their size, how do you choose one over the other?

The ultimate decider is panel value, measured in cost-per-watt.

Divide the price of the panel by the rated panel output (typically 300W-400W per panel). This will give you a baseline to compare panel value, regardless of size.

Our advice is to go for the best cost-per-watt option that fits the space where you will install your system.

Here&#;s an example. If your mounting space is 35&#; wide and 10&#; tall, you can only fit a row of 10 panels. You can install more power by using 72-cell panels because you have enough space to accommodate the taller panel size.

Standard Solar Panel Sizes:
60-cell panels: 39&#; x 65&#;
72-cell panels: 39&#; x 77&#;

On the other hand, if your mounting space is 35&#; wide and only 6&#; tall, you&#;d have to use 60-cell panels.

Cost of installing

The cost of installing 60-cell vs. 72-cell panels may also vary a bit for your installation. 72-cell solar panels tend to be cheaper to install on a large scale, which is why they&#;re more common for commercial applications. Because each panel has more solar cells, you can typically install fewer panels to generate the same amount of electricity. Fewer panels mean less racking is necessary, which helps cut down on overall equipment and installation costs.

On the other hand, 60-cell panels are lighter and easier to install which is why they&#;re more common for residential rooftop installations. This can mean lower labor costs for the installation. For large, commercial installations, the extra size and weight of a 72-cell panel aren&#;t as much of an obstacle because cranes are often used to lift the equipment to the rooftop.

Other factors to consider when choosing solar panels

When it comes down to choosing your solar panels, the number of cells included in the panel isn&#;t the most important factor. Cost, aesthetics, warranty, efficiency, and durability should all be taken into account when selecting the right solar panels for your home or business.

For cost, it&#;s a good idea to compare your 60-cell and 72-cell panel options on a cost-per-watt ($/W) basis. Similar to looking at dollars per square foot when shopping for a home, looking at $/W shows you what the cost of a turnkey solar panel installation is on a per-watt basis. Looking at this factor will allow you to standardize the price of installations using either 60-cell and 72-cell panels, especially if you&#;re comparing different system sizes.

Panels come in a variety of cell colors (dark blue, blue, black), backsheet colors (white, black) and frame colors (silver, black, and white). If aesthetics are a concern, make sure to look at an image of the panel before signing the contract, or ask your installer for photos of their past installations with the same equipment to get a feel for how they will look on your roof. If you&#;re looking for the sleekest appearance possible, there are many black-on-black panel options. You may pay more for these options, but it can be worth it.

Mixing and matching 60 cell and 72 cell solar panels

It&#;s possible to mix and match 60-cell and 72-cell panels if necessary.

For example, let&#;s say you have a triangle-shaped roof with less space near the top. You might install a row of 72-cell panels in the middle of the roof. Then you can add smaller 60-cell panels on the sides / top to hit your target system size.

It&#;s possible to mix panel sizes like this to fit the usable space on your roof. But keep in mind that different components run on different voltages, and you&#;ll need to pair each panel with a compatible inverter.

If you build a system like this, it&#;s worthwhile to spend some time with an experienced design consultant to make sure you aren&#;t wasting power or damaging your equipment.

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