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  3. Learn how to open a solar energy company
Technical Article

Learn how to open a solar energy company

Check out what should be considered during the process of opening a company in Brazil

Author Bruno Kikumoto
Published 1 February 2019, 15: 55 Updated 18 June 2025, 08: 04
Reading 6 min read
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Learn how to open a solar energy company

The business plan will help you define which parts of the value chain your company will operate in

Are you going to start operating in the solar market? Do you already know what type of company to open? You need to read this article.

Photovoltaic solar sources are experiencing considerable growth in Brazil, with increasingly important economic, social and environmental benefits for our society.

According to ABSOLAR (Brazilian Association of Solar energy Photovoltaic), By January 2019, the country had more than 500 MW of DG (distributed generation) with photovoltaic systems.

This market growth will require the creation of new integrating companies spread across the country. But what does it take to open a company in this field?

Although some issues vary between Brazilian states, the business opening process is made up of a series of common steps, mandatory for everyone. It is always advisable to consult a competent professional, in this case an accountant.

The objective of this article is to provide general information so that discussions with this professional are more productive and targeted. Firstly, it is recommended that the business plan, describing the company's objectives and what steps must be taken to achieve these objectives, one of which is the formal opening of your company.

The business plan will help you define which parts of the value chain your company will operate in: commerce, installation, engineering or all of them. Having defined this, you will have to fit into one of the possible modalities:

  • Limited Company (Ltd);
  • Limited Liability Company (Eireli);
  • Individual entrepreneur or;
  • Individual Microentrepreneur (MEI).

Furthermore, we also recommend carrying out solar energy courses and training to acquire specific knowledge about the market and its particularities.

Limited Company (Ltd.)

To open a Ltd. the existence of at least two partners is required. A minimum share capital is not required, however it is taken into account that the partners declare at least the opening costs and initial operating costs until the company generates revenue.

Another important point is that in the case of debts, the partners will respond with their personal assets, within their share in the society. For example, if there are two partners and each of them responds to 50% of the company, in case of debts, they will divide the payment responsibility in half.

Limited Liability Company (Eireli)

If you intend to open a company without partners, you can opt for an Eireli. The minimum share capital required to open a company of this type is 100 minimum wages. With regard to debts, the main difference is that the entrepreneur's personal assets will not be used to fulfill obligations, personal assets are separated from the company's assets.

individual entrepreneur

This modality also does not require the presence of partners to open your company. With regard to share capital, the same rules apply to a Ltd. In the case of debts, the businessman's assets will be used to pay creditors. This also applies to personal debts, and the company's assets can be used to pay them off.

MEI (Individual Microentrepreneur)

If you work in commerce, installation or both activities, you can choose to be a MEI. This modality excludes the possibility of working in engineering. To be a MEI, revenue is limited to R$81 per year and you cannot participate in another company as a partner or owner. The MEI will pay around R$54 monthly as taxes (DAS – Simples Nacional Collection Document).

Opening costs and deadlines

Costs and deadlines will vary from state to state. Opening fees with the local commercial board must be between R$200 and R$350. If the company has engineering services in its activities, it also has the costs of registering the company with CREA (Regional Council of Engineering and Agronomy ), paying the registration fee of R$310 and annual fee of R$470.

The average deadlines for commercial boards are between 15 and 30 days. Once the opening with the commercial board has been completed and the CNPJ has been issued, you can apply for CREA, which has a registration period of 30 days.

Do you want to know more about the process of opening a company in Brazil? Be on top of events in the Solar Energy Sector!

Tax regime: simple national, real profit or presumed profit?

Depending on the company's revenue, it must opt ​​for one of these regimes. Taxes for each activity will vary according to the tax regime in which the company is classified.

Simple national

For Simple national, the company should have a maximum turnover of up to R$4,8 million per year. The idea of ​​this tax regime is to make life easier and simpler for micro and small companies. Taxes are differentiated, varying according to revenue, which is separated into revenue bands, up to the established limit. Companies included in this category also have simplified labor and social security obligations.

Presumed profit versus Real profit

Companies with expected annual revenues exceeding R$4,8 million opt for these regimes. Opting for one or the other depends on a detailed analysis. This analysis must be done together with your accountant, considering factors such as revenue, expenses, number of employees, purchase of products for resale and others.

Which CNAE to use?

Finally, the CNAEs (National Classification of Economic Activities that the company will carry out) must be defined. The company may have more than one CNAE, these being the most common among companies operating in the photovoltaic market:

  • CNAE 4292-8/02 – Industrial assembly works;
  • CNAE 4321-5/00 – Electrical installation and maintenance;
  • CNAE 4742-3/00 – Trade in electrical material and equipment;
  • CNAE 7490-1/04 – Intermediation and agency activities for services and businesses in general, except real estate;
  • CNAE 7112-0/00 – Engineering services. (Not allowed for MEI)

Finally, it is worth highlighting that to increase the visibility of your new company and attract qualified customers, advertise on Canal Solar can be a great differentiator. It is one of the main platforms specialized in the photovoltaic sector, with a highly segmented audience interested in solar energy solutions. This way, you increase your chances of closing deals, strengthening your brand and standing out in a constantly growing market.

solar energy Photovoltaic systems
Bruno Kikumoto
About the Author
Bruno Kikumoto

Electrical Engineer from UDESC. Master in Electrical Engineering from UNICAMP. Director of Canal Solar. Specialist in project management, inspection and commissioning of photovoltaic systems, with over 10 years of experience in the industry and the energy market.

Comments (11)

Comments are moderated before publication.

Comments should be respectful and contribute to a healthy debate. Offensive comments may be removed. The opinions expressed here are those of the authors and do not necessarily reflect the views of the author. Canal Solar.

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  • Fabio Dias 28/08/2023 · 10:00

    It is important to mention that if you are going to work with systems installation, projects, or construction, the company (not just the professional) must be registered with CREA. If you are not, you are practicing the profession illegally and are subject to fines.

    Reply
  • lucio france 28/09/2022 · 15:39

    MEI purchase of the photovoltaic kit?

    Reply
  • lucio france 28/09/2022 · 15:37

    Can I use the CNPJ MEI to purchase the photovoltaic kit?

    Reply
  • NELSON ANTONIO FREITAS DOS SANTOS 23/09/2022 · 14:27

    Can I use my MEI TO REQUEST A QUOTE?

    Reply
  • Diego Faria 28/07/2022 · 12:09

    If you set up a photovoltaic plant and want to rent this plant to another consumer. Which CNAE should my company have?

    Reply
  • RUY LIMA DA SILVA 28/04/2022 · 10:56

    I'm trying to enter the solar energy market, because it's a very promising investment in my region. That's why I ask for everyone's help.
    Att: Ruy Lima.

    Reply
  • Roberto Dias Santos 26/01/2022 · 22:13

    Cool, your content is perfect, just to add, there is a program called: PCG Software, this software is an aggregator of classifieds sites, it has more than 340 free classifieds sites where you can advertise, using this program you can advertise automatically on these sites, it is very worth using it makes your work much faster in addition to giving you a list that is always updated with current sites, with this program you can obtain organic traffic and thus receive visits from search engines like Google and others, I have always used this program to advertise and I make sales practically using only it. Here is the tip... Your text helped me a lot. See you later

    Reply
  • Wellington 19/12/2021 · 22:41

    Dr. Bruno, good evening.
    I have a friend, who has an area of ​​50 m2, and he proposed a partnership to me, to explore solar energy generation, however, the said area is in his name, but I'm worried because the documentation, despite the fact that is in his name, he pays a fee every year that is charged to Incra. I ask him.
    We would be allowed to explore this type of document, he purchased this area from a third party through a private purchase and sale document, with recognized firms.
    based in Cartorio, he has owned it for almost twenty years.
    I would be very grateful for the information.

    Reply
  • Carlos Augusto Dias Leite 27/08/2021 · 15:05

    Can I use the CNPJ MEI to purchase the photovoltaic kit?

    Reply
  • LUCIANO RIBEIRO DA COSTA 16/06/2021 · 14:18

    Good afternoon!

    I would like more information/guidance about this market.

    Best Regards,

    Luciano ribeiro

    Reply
  • Luciano 13/03/2021 · 22:52

    The article cites the MEI as an opportunity to work in the photovoltaic sector in a regular and legal manner in the area of ​​commerce and installation, but you cannot work in engineering. But isn't the installation of a photovoltaic or electrical system an engineering service and would it not be possible to be incorporated into the MEI? Could you clarify? But if possible, what would this installation service be? Could an engineer issue an installation invoice for his MEI trade company but without issuing design or execution ART? (ART's existed but were issued by another professional, for example)

    Reply

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