A residential solar energy has been gaining more and more ground as a sustainable and efficient solution for generating electricity at home. Using solar panels, it is possible to convert sunlight into clean energy, reducing electricity bills and reducing dependence on traditional sources.
At BYD, we have been following this evolution closely, developing innovative solutions that help make solar energy a viable option for more people. Throughout this article, we'll explain how solar energy can transform the reality of homes and the main points you need to know about the subject.
Residential solar energy and BYD
Data from Brazilian Photovoltaic Solar Energy Association (ABSOLAR) indicate that the number of installations of residential solar systems in Brazil has grown significantly in recent years. In 2023, photovoltaic solar energy reached the mark of more than 22 GW of installed capacity in Brazil, with part of this total corresponding to use in small businesses and a large part in homes.
Using solar panels to capture sunlight and transform it into energy, this model not only offers significant savings on electricity bills, but also contributes directly to reducing the emission of polluting gases and preserving natural resources.
In Brazil, a country with high solar incidence, this alternative is gaining momentum, offering a viable solution to reduce dependence on conventional energy sources.
BYD has played a crucial role in popularizing and advancing this technology. Investment in research and innovation has enabled the creation of more efficient, durable systems adapted to local needs, directly contributing to the expansion of solar energy in the Brazilian market.
The spread of residential solar energy also reflects a change in the way society views energy generation, bringing benefits both to the consumer, who reduces their costs and adopts a more sustainable attitude, and to the environment, which benefits from the reduction of CO2 and other pollutants.
Types of residential solar energy
There are different types of solar energy systems available for homes, each with characteristics that meet specific needs. The two main ones are on-grid systems, which are connected to the electricity grid, and off-grid systems, which operate independently. Both offer advantages and disadvantages, and BYD's solutions stand out for their innovation and efficiency in each category.
On-grid systems
On-grid systems are those that work in conjunction with the public electricity grid. This means that, in addition to using the energy generated by the solar panels, the house is still connected to the mains.
When solar energy production exceeds the household's consumption, the excess can be sent back to the utility company, generating credits that can be used later.
On-grid advantages
The main advantage of on-grid systems is the significant savings they provide. By sending surplus energy to the grid, the user can reduce their electricity bill, accumulating credits to use in months with less solar production.
These systems also have a generally lower initial cost compared to off-grid systems, which makes them an affordable option for many households.
Another important advantage is that the electricity grid acts as a backup. At times when solar production is not sufficient, such as on cloudy days or during the night, the home continues to receive energy from the grid, guaranteeing a continuous supply.
On-grid disadvantages
On the other hand, on-grid systems have some limitations. One example is that, in the event of a blackout or grid failure, the system will not continue to supply energy, as it depends on the stability of the grid. This means that even with solar panels installed, the house will be without power during a blackout, just like other homes.
Another point to consider is the need to obtain approval from the local utility and formalize contracts to participate in the energy compensation system. This process can vary according to the region, involving deadlines and bureaucracy that need to be met before the system can be fully up and running.
Off-grid systems
Off-grid systems operate completely autonomously, without relying on the public electricity grid. These systems are ideal for remote locations, rural areas or regions where the electricity grid is unavailable or unstable.
The energy generated by the solar panels is stored in batteries, allowing the home to have a continuous supply, even at night or on cloudy days.
Off-grid advantages
Like the on-grid model, the off-grid model also has interesting advantages, which you should consider when evaluating which residential solar energy to choose. Check them out:
- Total energy independence: One of the biggest attractions of off-grid systems is their total independence from the electricity grid. The user has complete control over energy generation and consumption, without depending on an external supplier.
- Operation in remote areas: This solution is perfect for rural areas or isolated areas where the traditional electricity grid does not reach. The system guarantees electricity for these regions, offering a reliable source of energy.
- Battery storage: the energy generated is stored in batteries, allowing it to be used even when there is no sunlight available, such as at night or during blackouts. This offers uninterrupted energy security.
Because it is an option that better serves remote areas, off-grid is ideal for those who want to avoid the instability that can occur with on-grid systems.
Off-grid disadvantages
Despite the advantages, off-grid systems present some challenges. The need for batteries to store energy increases the initial investment, since the cost of batteries can be significant. In addition, capacity limitations can arise, as the system is restricted to battery storage, which may require expansion as the household's energy consumption increases.
Another important point is the need for adequate space to install the batteries and other equipment. This can be a relevant consideration, especially in homes with limited space, where accommodating a complete off-grid system can be more challenging.
Benefits of residential solar energy with BYD
Opting for solar energy at home offers several advantages that go beyond simply reducing energy bills. This choice has a positive impact on the household economy, the environment and the value of the property.
One of the main advantages is the reduction in electricity costs. By producing your own energy, you reduce or even eliminate your dependence on the electricity grid, resulting in significant savings on monthly bills. With solar power generation, users have the opportunity to save money in the long term, especially in regions with high solar incidence.
What's more, the installation of a solar system can increase the value of the property. Homes equipped with solar panels are becoming more attractive to buyers looking for energy efficiency and sustainable solutions. Thus, a solar energy system can be an important differentiator in the real estate market, adding value to the property.
Another important point is the contribution to a more sustainable future. Solar energy is one of the cleanest sources of electricity generation, and its adoption helps to reduce carbon emissions. This is very important in a global climate change scenario, where every little contribution counts. By choosing solar energy, you become part of a bigger solution that aims to preserve the environment for future generations.
So by considering residential solar energy, you not only optimize your financial life, you also add value to your property and actively participate in building a more sustainable world. This combination of benefits makes solar energy an attractive alternative for many households.
BYD offers solutions for both on-grid and off-grid systems, providing flexibility to meet the specific needs of each home.
With high-quality products that integrate energy generation and architectural design, BYD's systems stand out for their efficiency and innovation, allowing every home to benefit as much as possible from solar energy.
How a BYD residential solar energy system works
Residential solar energy has proven to be a practical and sustainable alternative for reducing electricity costs and contributing to a cleaner future. But how does it all work? Let's take a look at the main components of a solar system and understand how they work together. Modern technology, especially that used in BYD systems, makes this journey easier, making solar energy accessible to more and more homes.
System components
A residential solar energy system is made up of a few key parts, each playing a fundamental role in the generation and use of electricity. Here are the main components:
- Photovoltaic modules (solar panels): these panels are responsible for capturing sunlight and transforming it into electricity. BYD has domestically manufactured and imported modules that meet different needs and for different types of application.
- Inverter: The inverter is an essential component that converts the direct current (DC) produced by the panels into alternating current (AC), which is the type of electricity we use at home. A good quality inverter ensures that this conversion is efficient, allowing maximum use to be made of the energy generated.
- Assembly structures: These structures support the solar panels and position them correctly so that they capture sunlight in the best way. They can be adapted to different types of roofs, making installation easier.
- Storage system (batteries): in some systems, the batteries store the energy generated during the day, allowing you to use it at night or on cloudy days. This provides more autonomy and energy security.
How the system works
The operation of a residential solar energy is quite simple. When sunlight reaches the photovoltaic modules, solar energy is converted into electricity. This energy is initially generated as direct current, which is converted into alternating current by the inverter, making it available for use in domestic appliances and other devices in the home.
At times when you generate more energy than you consume, this extra electricity can be stored in batteries or sent back to the grid, depending on the type of system you have chosen. This means that you not only manage to lower your energy bills, but also make better use of the electricity you generate.
Some myths about residential solar energy
Even though residential solar energy is an increasingly popular alternative for those who want to reduce electricity costs and contribute to a more sustainable future, many people still have doubts and myths about how this technology works and its viability.
To understand once and for all what is myth or truth, below we will debunk some of the most common claims related to residential solar energy, helping you to make a more informed decision.
Solar panels don't work on cloudy days
False! Solar panels can generate energy even on cloudy days. Although production is lower compared to sunny days, the diffused light that passes through the clouds is still used, ensuring that your home continues to receive electricity.
Installing solar systems is very expensive and not worthwhile
False! Although the initial investment in installation may seem high, the prices of solar systems have fallen in recent years. What's more, the savings on energy bills can be significant, and many homeowners are able to recoup their investment within a few years, depending on consumption and location.
Solar systems require a lot of maintenance and are expensive to maintain
False! Solar energy systems are designed to be durable and require minimal maintenance. Periodic cleaning of the panels and an annual check by professionals are usually sufficient. Maintenance costs are low compared to the savings you can make.
Solar panels are ugly and spoil the aesthetics of the house
False! Nowadays, there are several options for solar panels that are visually appealing, such as BIPV (Building Integrated Photovoltaics) modules. These panels can be integrated into the architectural design of your home, contributing to both energy generation and the beauty of the property.
Solar energy is only viable in sunny regions
False! Solar energy can be harnessed in many regions, even those that receive less sun. Well-designed and dimensioned systems can work effectively in different climatic conditions, allowing many homes to benefit from this energy source.
Solar systems are fragile and don't last long
False! Most solar panels have warranties ranging from 20 to 25 years, with many lasting up to 30 years or more. As technology advances, the durability and efficiency of solar systems have improved, making them a reliable choice for homes.
Step by step to install residential solar energy
Installing a solar energy system at home may seem complicated, but the truth is that by relying on the right professionals, you can put all your worries aside. At BYD, we're here to support you every step of the way, making sure you have a smooth and positive experience.
Let's get to know the steps needed to install residential solar energy.
Preparation and permissions
Before starting the installation, it is important to prepare properly. This phase involves some crucial steps, such as:
- Documentation: you will need to gather documents such as proof of residence, an up-to-date electricity bill, identity documents and information about the property. This documentation is essential to ensure that everything is in order before the installation begins so that there are no interruptions.
- Regulations: Each municipality may have its own regulations and requirements for the installation of solar energy systems. This can include project approvals and specific licenses.
At first, the process can seem a little bureaucratic, but with the right supplier, you don't have to worry about these details.
Choosing suppliers and professionals
The choice of suppliers and professionals to carry out the installation is a fundamental step. Here are some tips:
- Search for references: look for companies with experience in the solar energy market and that have good reviews from previous customers.
- Check certifications: Qualified professionals must have relevant certifications and be familiar with the best practices in the sector.
- Consider the partnership with BYD: by opting for suppliers who work in partnership with BYD, you guarantee that the installation will be carried out using high-quality products and following standards of excellence.
Another important point when choosing is to evaluate the warranty. Here at BYD, we work with guarantees with a minimum of 12 years for the product and 25 years for performance.
Installation process
Once the preparation and permissions are in order, the installation process can begin. Here's a summary of what to expect:
- Site evaluation: qualified professionals will analyze the site to determine the best way to install the solar panels.
- Panel installation: the solar panels will be installed in accordance with the approved project, respecting the technical specifications and the structure of the property.
- System configuration: Once the panels have been installed, the system will be configured, including the installation of the inverter and, if necessary, the storage system.
- Tests and adjustments: once everything is installed, the system will undergo tests to ensure that it is working correctly.
Throughout this process, it is important that you have professionals at your side who offer support and assistance to ensure that the installation goes smoothly.
System maintenance and monitoring
Once your residential solar energy system has been installed, maintenance and monitoring become essential to ensure its efficient and long-lasting operation. Regular maintenance is essential not only to maintain the system's efficiency, but also to extend its lifespan.
Over time, dirt, dust and debris can accumulate on solar panels, reducing their ability to capture sunlight. Therefore, careful cleaning, done at least once a year, helps to maximize energy production.
In addition to cleaning, continuous monitoring of the system's performance is crucial. Using tools that allow you to track energy production in real time can help you quickly identify any problems, such as inverter failures or wiring damage. BYD offers apps and platforms that facilitate this monitoring, giving you a clear view of how your system is functioning.
It's also important to carry out regular visual checks on the panels and components, looking for signs of damage that could impact efficiency. If you notice anything unusual or don't feel comfortable carrying out the maintenance yourself, it's always a good idea to seek the help of qualified professionals. BYD helps you find experts who know the company's systems well and can ensure that everything is in order.
Taking care of your solar energy system not only ensures that you are making the most of this renewable source, but also represents a smart investment for the future. With proper maintenance and monitoring, you can enjoy the benefits of solar energy, reducing your electricity bills and contributing to a more sustainable world.
Incentives and financing for residential solar energy
As you already know, in recent years solar energy has been gaining prominence in Brazil as a sustainable and economical solution for homes. To facilitate this transition, the Brazilian government has implemented several tax incentives and financing options that make investing in solar energy more affordable for everyone.
One of the main incentives available are tax exemptions on solar energy equipment. This means that when purchasing solar panels and other necessary components, you can benefit from reductions in the taxes that would normally be charged. This reduction in cost can represent a significant saving at the time of purchase.
In addition, the government offers credit line called FinameThis is especially geared towards the purchase of nationally manufactured equipment, including solar energy systems.
This financing is a great opportunity, as it allows consumers to purchase the necessary equipment with more favorable payment conditions, such as reduced interest rates and longer terms. This makes it easier for families and companies to invest in solar energy without such an immediate financial impact.
BYD, for its part, also positions itself as a facilitator in this process. Our specialized team is ready to help customers understand and access these benefits. With the necessary knowledge of financing options and the incentives available, we can guide you in choosing the best way to install a solar system.
These incentives and financing options not only reduce the initial cost of installation, but also make solar energy an attractive and viable alternative in the long term. By investing in a solar energy system, you not only lower your electricity bills, but also contribute to environmental protection and a more sustainable future.
Residential solar energy and the future
The future of residential solar energy promises to be even more integrated into families' daily lives, with advances that go far beyond simple energy generation. The trend is for this technology to become increasingly common in the coming years, driven both by the need to reduce electricity costs and by the growing commitment to sustainable practices.
In addition, concerns about the aesthetics and efficiency of solar systems will also gain prominence, as consumers look for solutions that better suit the design of their homes.
In this context, companies like BYD play a key role, as they are at the forefront of technological innovation. With the recent expansion of its research and development unit in Campinas, BYD is introducing technologies that raise the standard of solar energy.
A good example of this is the creation of innovative equipment to simulate hotspots on photovoltaic modules, which helps to ensure that solar panels are more durable and efficient. This translates directly into greater safety for consumers and fewer worries about maintenance or replacing equipment, as well as more savings on energy bills in the long term.
This technological advance makes residential solar energy even more attractive, not only because of the savings it provides, but also because of the confidence of having products that exceed international quality standards. This means that by installing solar panels, consumers can count on systems that operate efficiently for many years, maximizing energy production and minimizing costs.
What's more, the future of residential solar energy is becoming more accessible. As technologies evolve and become cheaper, and aesthetic concerns are increasingly taken into account in the development of panels, families will be able to choose solutions that combine modern design with energy efficiency.
The future is now!
In this guide, we've seen how residential solar energy can be a practical and sustainable option for reducing your electricity bills and helping the environment. We've discussed the many benefits of this technology, such as the savings it provides, the increase in property value and the ease of installation.
We also address and debunk some common myths, clarifying doubts about the efficiency of the systems in different climatic conditions and the durability of the equipment.
BYD is here to make this transition even simpler and more effective, offering innovative solutions that not only generate energy, but also enhance the aesthetics of your home. With our team by your side, you can adopt solar energy with confidence and enjoy all its benefits.
If you're thinking of installing solar energy in your home, don't hesitate to contact BYD. We are ready to help you take this step towards a more sustainable and economical future.
Talk to us and find out how we can turn your home into an example of energy efficiency!
