Brazil's first solar roof tile enters production

In August 2019, Eternit presented its photovoltaic solar tile at Intersolar South America. This first-of-its-kind product in the country has just received Inmetro certification for production. The model had already been approved by the institute, and with this certification, the first concrete tile capable of generating energy—developed in Brazil—can now be marketed.

Those who install these tiles on their homes will be able to capture sunlight to produce electricity—without the need for additional panels. This technology became globally known through Tesla's solar tiles.

Brazilian Technology

With integrated photovoltaic cells, each tile produces 9.16 watts and measures 36.5 by 47.5 mm. This ensures an average monthly production capacity of 1.15 kilowatt-hours per month (kWh/month).

The tiles are already being produced on demand for pilot projects at the Tégula Solar factory in Atibaia, in the state of São Paulo. One of the tests is being conducted at the Federal University of Santa Catarina (UFSC).

“We are the only Brazilian company to locally manufacture a revolutionary product that will help reduce traditional energy consumption in an eco-friendly way, while promoting efficiency in its use,” says Luís Augusto Barbosa, president of the Eternit Group.

Advantages

In addition to generating clean, renewable energy at home and freeing consumers from dependence on utility companies, Eternit promises financial advantages—even though it has not disclosed costs.

“It is estimated that this technology will benefit consumers by allowing a 10% to 20% savings on the total purchase and installation cost of the photovoltaic tiles, compared to solar panels mounted on top of conventional roofs,” the company stated in a press release. Eternit also estimates a return on investment of 3 to 5 years.

But how many tiles are needed to meet a home's energy demands? The answer depends on several factors, such as the property's location, roof slope, and orientation relative to the sun.

According to the company, a small home may require around 100 to 150 photovoltaic tiles, while mid- to high-end houses may need 300 to 600 units or more. Regardless, there is no need to cover the entire roof with solar tiles; they can be combined with conventional ones.

Unveiled to the public just over a year ago, nationwide commercial sales are expected to begin in the first half of 2021.

Via CicloVivo.