Solar energy is a sustainable and economical alternative that is gaining popularity, but Many still believe that installing solar systems is a complex task. In reality, the process is simpler than you might think and can bring great benefits to your home or business.
In this article, we'll demystify solar energy installation, guiding you through the necessary steps and showing how this technology can be implemented efficiently and affordably.
Solar energy and how it works
Before starting to install a solar energy system, it is essential to understand how it works and the types of technology available. Solar energy comes from the sun, and can be converted into electricity or heat, depending on the system used.
Photovoltaic solar energy is the most efficient and versatile solution, using solar panels to directly convert sunlight into electricity. These panels are made up of solar cells, capture solar radiation and transform it into electric current, powering everything from small homes to large industries. This system offers a wide range of applications, providing excellent long-term value for money.
On the other hand, solar thermal energy is more limited in terms of use. It is basically used to heat water, using solar collectors to capture radiation and transfer the heat to a fluid, which heats the stored water. Although it is an efficient alternative for heating, its use is restricted, requiring storage equipment, which reduces its efficiency and limits its application.
In comparison, photovoltaic solar energy offers greater flexibility and efficiency and can generate electricity for a variety of purposesIt stands out as the best choice in terms of value for money.
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Evaluation and planning
The first step in installing a solar energy system is assessment and planning. This process is This is essential to ensure that the system meets your needs and is installed efficiently. Let's take a closer look at each of the evaluation stages below:
Feasibility analysis
To assess your site's potential for capturing sunlight, it is important to consider some factors that impact the efficiency of the panels:
- LocationThe amount of sunlight a site receives varies according to the region and climate. Areas with more hours of sunshine throughout the year will have greater potential for generating solar energy.
- Panel orientation: The position of the solar panels in relation to the sun is fundamental. They should be oriented to the north (in the southern hemisphere) or to the south (in the northern hemisphere) to capture the greatest amount of sunlight during the day.
- Shading: check for objects that could cast a shadow on the solar panels. Trees and buildings can be a bad place to install them.
- Tilt: The inclination of the panels also influences the amount of energy generated. The ideal angle will vary according to the latitude of the location and should be adjusted to optimize the capture of sunlight.
Considering these factors will help ensure that your solar energy system is effective and will maximize your return on investment.
Choosing a solar energy system
Before installing, you must decide between two main types: on-grid and off-grid systems.
On-grid systems
They are connected to the conventional electricity grid. They allow you to use the energy generated by the solar panels and also receives electricity from the grid when necessary.
Any excess energy generated can be sent back to the electricity grid, often with credits on your bill. These systems are ideal for those who want to reduce their energy bills without having to store energy.
Off-grid systems
They are not connected to the mains. They use batteries to store the solar energy generated, which allows the energy to be used even when the sun is not shining. They are ideal for remote areas or for those who want total independence from the electricity grid.
Calculate cost and return on investment
Calculate the total cost and return on investment of installing a solar energy system involves several components:
| Calculation | Aspect | Details |
| Calculating the cost of the installation | Cost of solar panels | Includes the price of the panels and auxiliary equipment (inverters, mounting structures). |
| Installation costs | Labor and necessary adjustments to the existing infrastructure. | |
| Additional costs | Licenses and inspections. | |
| Payback calculation | Monthly savings | Amount saved on the electricity bill with the solar system. |
| Return time | Total Installation Cost ÷ Monthly Savings (Determines how long it takes to recover the initial investment) | |
| Long-term savings | Evaluation of accumulated savings over the system's useful life (usually 25 years). |
In all cases, solar energy offers a excellent return on investmentThis will greatly reduce your electricity costs in the short term. As well as contributing to a more sustainable future.
Step by step to install solar energy
Installing a solar energy system may seem like a challenge, but with this simple, detailed steps and the right installation companythe process becomes much clearer.
Preparation and permissions
First, you need to gather the necessary documentation, which includes a detailed technical design of the solar system, with the layout and specifications of the equipment. It is also important to obtain certificates attesting to the quality and safety of the solar panels and other components of the system. In addition, prepare the contracts and guarantees relating to the purchase of the equipment and installation services.
Regarding permissions, check if you need a specific license to install solar systems in your area. In some cases, it will also be necessary to obtain authorization from the energy company to connect the system to the electricity grid.
Preparing the site is a fundamental stage. Carry out an inspection to ensure that the space is suitable for installing the solar panelsconsidering aspects such as shade and structure.
Installation of solar panels
The solar panel installation process begins with the assembly of the support structures. These structures must be firmly fixed in the chosen location, ensuring that they are level and aligned correctly to maximize the efficiency of the panels.
Once these structures are in place, the solar panels are attached to them. Once the panels are attached, the electrical connection must be made. Each solar panel has wires that must be connected to the wires of the adjacent panels, forming a series or parallel combination, depending on the system design.
Installation of the inverter and storage system
Installing the inverter requires the device to be mounted in a dry and ventilated place, usually close to the electrical panel in the house or business. It must be installed in accordance with the manufacturer's specifications and connected to the wires coming from the solar panels.
If the system includes a storage system, such as batteries, integration must be carried out in accordance with the guidelines of the battery and inverter manufacturer. The batteries are connected to the inverter and store the surplus energy generated by the solar panels.
Testing and inspection
Once the solar panels and electrical components have been installed, you need to carry out initial tests to ensure that the system is working correctly. These tests include checking that all the panels are generating energy and that the inverter is converting direct current into alternating current efficiently.
A final inspection must be carried out to check the integrity of the installation. Checking all electrical connections to ensure they are safe and risk-freeIn addition, it is important to check that the panels are properly fixed and aligned, and to ensure that all components are working as expected.
The final check is always must be carried out by a qualified professional to ensure that the system is compliant with safety and efficiency standards.
The importance of having the right partners
Keeping your solar system efficient requires ongoing maintenance and monitoring. A he choice of a good supplier and installer is fundamental to ensuring that the system is installed and maintained properly.
In addition to generating its own electricity from sunlight and reducing dependence on the electricity grid, installing solar panels also greatly reduces monthly electricity costs, as everyone knows.
But how much can you really save using solar energy? In some cases, according to ANEEL, energy bill savings can reach up to 95%. Let's take a closer look at how these savings come about and what you can expect from adopting this technology.
Benefits of solar energy
The main reason many people opt for solar energy is the savings it brings. In addition to cutting electricity bill costs, this system offers a number of other advantages which we'll explore next. But first, let's get a better understanding of how the economy really works.
Reduced energy costs
With solar panels, you start producing your own electricity, which reduces or even eliminates the need to buy energy from the public grid.
In an ordinary household, for example, where the electricity bill is around R$ 500 per month, installing a solar system can reduce this figure to around R$ 25, depending on consumption, the capacity of the installed system and the local utility's rates. This type of saving is even more significant in companies or industries, where energy consumption is higher.
In terms of return on investment (payback), the initial amount spent on installing the solar panels usually pays for itself in around 4 to 7 years. After this period, the energy generated is practically free and the system can last more than 25 years.
In other words, over time, the accumulated savings can be very significant, making solar energy an investment that not only pays for itself, but that also brings long-term financial returns.
Energy independence
By generating your own electricity, you significantly reduce your dependence on utilities and this has many benefits. Imagine no more worrying about sudden tariff increases or outages in the energy supply.
With a solar panel system, you have greater control over your energy consumptionIt can be better adapted to your specific needs. What's more, in places where the electricity grid is unstable or non-existent, solar energy is a viable option to guarantee a continuous supply.
Another advantage of energy independence is the possibility of storing excess energy generated during the day in batteriesThese can be used at night or during periods of low solar generation.
This not only increases the autonomy of your system, but also brings a additional security in case of emergencies or natural disasterswhere the power grid could be compromised.
Property valuation
Investing in solar energy also has the benefit of increase the value of your property. Properties with installed solar energy systems are seen as more modern and sustainable, which can attract buyers and tenants.
Studies indicate that houses with solar systems can be sold up to 20% faster and for a lower price. value up to 10% higher than properties without this technology.
Furthermore, in a market that is increasingly aware of the benefits of sustainability, having a solar system can be an important differentiator. In some cases, the increase in property value may even exceed the cost of installing the panelsThis makes solar energy a worthwhile investment in both the short and long term.
Calculating savings from solar energy
Understanding the savings provided by solar energy involves considering some crucial factors, such as the geographical location, the size of the system and the orientation of the panels. Regions with higher solar incidence, larger systems and a good orientation of the panels generate more energy and, obviously, greater savings.
Let's take a practical example: a household with an electricity bill of R$ 600 installs a solar system that covers 90% of consumption. As a result, the bill drops to R$ 60, generating monthly savings of R$ 540, or R$ 6,480 per year.
If the installation cost was R$ 30,000, return on investment is around 4.6 years. After this period, the system continues to generate savings for many years, as its useful life can exceed 25 years.
How to increase savings with solar energy
To ensure that the solar energy system continues to generate maximum savings, it is essential to carry out regular maintenance and monitoring. A well-maintained system not only operates more efficiently, but also has a longer service life, which increases the financial benefits over time.
Keeping panels clean is one of the simplest and most effective actions. Dust, leaves and other dirt can reduce the efficiency of panelsThis reduces the amount of energy generated. Cleaning should be carried out periodically, paying particular attention to areas with a lot of pollution or dust.
Another important tip is to monitor the system. Regularly monitor energy production using a monitoring system, which is usually offered by suppliers. This allows any drop in efficiency to be detected quickly and acted upon before it significantly affects the economy.
In addition, ensuring that the panels are well positioned and tilted correctly is key. If you notice that efficiency has dropped, you may need to adjust the tilt or check that there are no new shadows interferingThe trees that have grown since the installation.
You can change the world!
Finally, consider reviewing your energy consumption. Small changes in daily habits, such as using appliances at times of peak solar production (during the day), can further optimize savings.
Maintaining a conscientious use of energy, combined with the proper functioning of the solar system, maximizes the return on investment and ensures that you make the most of the savings potential offered by solar energy.
At BYD, our mission is to transform the world by changing our dependence on non-renewable energies to clean and sustainable sources. Our photovoltaic energy solutions serve a variety of segments: residential, commercial, industrial and much more.
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