The demand for photovoltaic systems has grown significantly in Brazil in recent years, driven by an increasingly optimistic outlook for the segment.
Residential customers have stood out as one of the main interested groups, in addition to sectors such as industry, commerce and agribusiness, which also see the potential of this energy source.
However, when it comes to the application of solar plants in apartments, frequent doubts arise among both interested parties and professionals in the sector.
Technical feasibility, costs involved and specific installation conditions are aspects that generate questions and require clarification.
So, the good news is that, yes, it is possible to enjoy the benefits of solar energy in an apartment. Want to find out how? Canal Solar explains it to you!
How to install solar energy in an apartment?
The most practical way to use solar energy in an apartment is through the credit system. This model allows all the energy to be generated in solar farms connected to the electricity provider's grid.
If you want to understand all about solar energy, this is one of the most accessible models for those who live in condominiums.
Another possibility is the installation of a solar plant on top of the building, as long as there is enough space to accommodate the s and equipment. In addition, it is essential that the building structure is able to the weight of the photovoltaic system.
Before starting the installation, it is crucial to check for local regulations or possible restrictions that may limit or interfere with the effectiveness of the system.
The economic viability of the project must also be analyzed, considering aspects such as:
- Total installation cost;
- Electricity rates in the region;
- ]Tax or financial benefits available;
- Estimated time to return on investment.
This detailed analysis helps ensure that the system is efficient and brings both environmental and economic benefits.
How can the energy produced be credited?
When contracting a photovoltaic energy credit plan, a calculation is made based on the customer's average consumption. A quantity of energy is reserved in the solar farms, later injected into the electricity grid and directed to the property.
This model is a practical and affordable solution for those who want to enjoy the benefits of solar energy, even without installing s directly on their property. It is ideal for residents of apartments or homes with structural limitations, as it allows you to reduce your electricity bill while contributing to environmental sustainability.
How does shared generation work in buildings?
A shared generation is a type of DG (distributed generation) created by ANEEL (National Electric Energy Agency) in 2015, through Resolution 687 (Normative Resolution 687/2015), which enables the sharing of mini and microgeneration energy between consumers who are in the same concession area.
This energy generation model is ideal for residents of residential buildings interested in obtaining the benefits of photovoltaic sources.
Where can solar energy be installed in an apartment?
The structures used in buildings to install photovoltaic systems are similar to those used in single-story homes. This implementation model can benefit both a single resident and several residents of the building, making the use of solar energy in apartments a viable and advantageous alternative for condominiums.
However, unlike single-story residences, buildings have specific characteristics that must be carefully analyzed and respected during the installation process.
These particularities include the availability of space in common areas, such as roofs or slabs, and the need to comply with the condominium's technical standards and regulations.
Installation on balconies and facades
In Brazil, the sun is at its peak for a large period of the day, that is, it is positioned in the center of the sky for a longer period, compared to the sides, such as at sunrise and sunset.
Given this scenario, although the installation of photovoltaic energy on apartment balconies is possible in other countries, such as Europe, here in Brazil it is not recommended.
Regarding installation on building facades, it is possible, however, the effectiveness of energy capture and distribution will not be the same, due to the climatic conditions of the Brazilian territory.
Installation on roofs and roofs
It is recommended that the installation of photovoltaic systems in buildings be carried out on roofs, as it is an ideal location for the conversion process, precisely due to the direct access to roofs and sunlight.
However, the installation of photovoltaic modules is also possible on the building's roofs, considering the greater capture of sunlight, without the need to worry about shading.
It is always recommended to rely on partners who are specialists in the subject and who have experience in the photovoltaic market.
Backyard installation
The backyard is an area with excellent sunlight, making it a strategic location for generating energy in apartments.
Taking advantage of this space not only contributes to environmental sustainability, but also allows you to maximize savings on your electricity bill.
What are the advantages and disadvantages of solar energy in the apartment?
Among the main advantages is the possibility of significantly reducing electricity bill costs, since the energy generated by photovoltaic systems is clean and renewable.
In cases where the photovoltaic system is shared between two or more apartments, residents also benefit from the credit model regulated by ANEEL.
In this system, the energy generated is injected into the electrical grid and converted into credits that can be proportionally deducted from the electricity bills of the residents involved, promoting collective savings.
Although the photovoltaic source brings numerous benefits, the installation and use of solar energy in an apartment also presents some challenges and disadvantages that must be considered.
The installation of solar s in apartments depends on the availability of suitable areas, such as roofs or slabs, which often need to be shared between residents.
The installation of solar systems in condominiums requires the approval of the residents, which can be a lengthy and bureaucratic process. In addition, it is necessary to define how the costs and benefits will be distributed among the residents, which can lead to disagreements.
Another point is that the installation of solar energy in an apartment is subject to local regulations, technical standards and condominium rules, which may limit or hinder the viability of the project.
How much does it cost to install solar energy in an apartment?
O cost of a photovoltaic kit varies according to the quality of the equipment and applications. Generally, a solar kit consists of photovoltaic modules, photovoltaic inverter, string box, fixing structures, cables and special connectors.
Solar s represent around 25% to 40% of the total cost of the kit, according to data from Greener, a consultancy specializing in the solar energy market.
In January 2024, the average cost of a photovoltaic kit, not including installation services, may vary as follows:
- Residential: R$4.240,00 (2 kWp) to R$15.200,00 (8 kWp);
- Commercial: R$ 21.960,00 (12 kWp) to R$ 120.750,00 (75 kWp);
- Industrial: R$ 229.500,00 (150 kWp) to R$ 1.460.000,00 (1 MWp).
These values illustrate the variation in costs depending on the scale and application of the system, highlighting the importance of evaluating the specific needs of each project for an informed investment decision.
It is important to note that the prices are for systems installed on roofs. Ground systems are on average 18% to 23% higher because the fixing structures are larger and more complex, and the execution/installation is also more laborious.
How to find the best solar energy company for buildings?
Finding the best solar energy company for apartments requires a careful analysis of technical, financial and operational factors. The first step is to check the experience and reputation of the company in the market, prioritizing those that have a proven track record of projects carried out in buildings or condominiums.
Research reviews from previous clients, ask for referrals, and evaluate the company's portfolio to ensure that it has expertise in more complex projects, such as building installations.
Additionally, make sure the company offers full , from technical and regulatory feasibility analysis to system installation and maintenance.
Another key issue is to assess the quality of the equipment supplied and the customized solutions offered. Reliable companies use certified products and adapt designs to the specific needs of the building, considering available space, energy consumption and local regulations.
It is also important to check whether the company offers consultancy to obtain tax incentives or financing, reducing the initial cost of the project.
Finally, choose a company that offers a warranty on both equipment and services, as well as ongoing technical to ensure system performance over time.
Find the best solar energy companies here and reduce your electricity bill at the end of the month
Conclusion
Solar energy in apartments represents a viable, sustainable and increasingly accessible solution, offering economic and environmental advantages.
With the growing demand and evolution of photovoltaic technologies, building residents can take advantage of the credit system to reduce costs and contribute to environmental preservation.
However, it is essential to understand the particularities of the process, from the analysis of technical and regulatory feasibility to the choice of reliable suppliers and adequate financial planning.
Despite challenges such as limited space and specific regulations, seeking partnerships with experienced companies and a detailed analysis of the property's conditions guarantee the project's success.
To follow examples and advances like this, news of Canal Solar are a great source of information and updates on the sector.
