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Tests on Rio de Janeiro’s public transport evaluate autonomy, recharging, comfort, and maintenance of electric models that may influence future municipal fleet decisions.
Rio de Janeiro has entered a dispute that could reshape public transport in the coming years. The city has become a testing ground for electric buses, putting manufacturers like BYD, Marcopolo, Eletra, Volvo, and TEVX in a silent race to show who can withstand the heavy routine of Rio’s streets.
The initiative is part of the Public Call for Demonstration of Electric Buses, launched by the Municipal Secretariat of Transport. According to the Rio City Hall itself, the public notice was published on September 8, 2025, and updated on April 30, 2026, focusing on testing solutions for the city’s public transport.
In practice, Rio wants to find out which electric models can face heat, intense traffic, air conditioning on, constant stops, mass passengers, and long urban journeys. The results of these tests may influence future decisions regarding the electrification of the municipal fleet.
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Rio wants to separate promise from reality on the streets
The most important point is that the project is not limited to a beautiful presentation of modern buses. The City Hall wants to evaluate autonomy, energy consumption, charging infrastructure, maintenance, passenger comfort, and operational performance.
This type of test is crucial because the electrification of public transport does not only depend on buying new vehicles. It requires prepared garages, efficient chargers, trained teams, available parts, and planning so that the fleet does not stop in the middle of operation.
Therefore, Rio is using the city itself as a laboratory. Instead of relying solely on manufacturers’ technical catalogs, the municipal administration wants to observe how each solution behaves under real operating conditions.
BYD enters the dispute after homologation in the public call
BYD do Brasil appears among the companies selected to participate in the public call. An SMTR document shows the manufacturer’s homologation on March 6, 2026, within the process linked to the operational demonstration of electric buses.
BYD’s presence draws attention because the Chinese company has been expanding its operations in Brazil in electrified vehicles, batteries, buses, trucks, and energy solutions. But, in Rio’s case, the challenge is more direct: to prove that the technology works in the urban routine.
The Rio test also avoids a purely industrial discussion. The central question is not only how many electric buses can be produced, but which models can truly operate every day without compromising schedules, comfort, and fleet availability.
Marcopolo puts national bus in Rio’s showcase
Marcopolo also entered this game strongly. On April 8, 2026, the Marcopolo Attivi Integral 100% electric began operational tests in Rio de Janeiro, with an evaluation scheduled for 30 days on MOBI-Rio lines.
The vehicle is treated by the manufacturer as a national electric bus and arrives with relevant numbers for urban operation. The model can transport up to 81 passengers, has an estimated range of up to 280 km per charge, and recharges in about 4 hours, depending on usage conditions.
On the technical side, the Attivi Integral features a WEG electric motor, CATL batteries, a capacity of 350 kWh, torque of 2,800 Nm, and a maximum power of up to 385 kW. These numbers help explain why the test in Rio could become a showcase for other cities.
BRT connection also entered the testing phase
Even before the entry of Attivi Integral, the City Hall had already started testing electric buses in the Conexão BRT service. In January 2026, the city placed a 100% electric vehicle on line 28, between Pingo D’Água and Terminal Curral Falso, as part of its cycle of technical evaluations.
This detail shows that Rio is not betting on a single manufacturer or an isolated demonstration. The strategy seems to be to compare different technologies on real routes, with real passengers, and real problems of daily operation.
The evaluation includes points such as range, performance, energy efficiency, and adaptation to urban service. For a city with busy corridors and high demand, this data can weigh much more than any factory promise.
Manufacturers compete for space before future decisions
In addition to BYD and Marcopolo, the call for proposals involves other companies in the sector, such as Eletra, Volvo, TEVX Motors Group, Guanabara Diesel, and companies linked to electric bus technologies. The extension of the participation deadline until April 30, 2026, opened up even more space for competitors.
This transforms the project into a kind of preview of the dispute for the future of Rio’s fleet. Whoever can present better range, lower operational cost, viable recharging, and adequate comfort may get ahead when the municipality moves towards more definitive decisions.
For manufacturers, Rio is a powerful showcase. Technical approval in a large, hot, busy, and touristy city can help open doors in other Brazilian capitals.
The promise is great, but so is the challenge
Electric buses promise to reduce noise, cut local emissions, and make public transport more modern. But the real test will show if the technology can handle the demands of urban operation without increasing bottlenecks.
Electrification requires more than just vehicles. It depends on available energy, chargers, specialized maintenance, route planning, recharging time, and total cost of operation. Any failure in one of these points can limit expansion.
That’s why Rio’s project is so important. The city is trying to discover, before a major fleet decision, which solutions can move beyond rhetoric and deliver results on the streets.
Rio can anticipate a turnaround in Brazilian public transport
If the tests are positive, Rio de Janeiro could become one of the main showcases for urban electric mobility in Brazil. The city would be creating a technical basis to reduce diesel dependence and prepare a new stage of public transport.
The dispute between BYD, Marcopolo, and other manufacturers shows that the market has already realized the size of the opportunity. Brazil has large cities, numerous fleets, and growing pressure for less polluting transport.
Now, the question that remains is simple: who will prove they can electrify public transport without hindering operations? In Rio, this answer began to be written on the streets, with electric buses running in test and manufacturers competing for every kilometer as if it were a final.
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