Porto Alegre has a serious air pollution problem. It has the second worst air quality in Brazil, after Sao Paulo, due to heavy motor vehicle use. There are 507 thousand vehicles in traffic according to the RBS TV,  which is an affiliate of the major Brazilian television network, Globo.[1]

2.373 trillion grams of carbon emission are released in the municipality area yearly. A single electric bus eliminates of 350.4 million grams of CO2 emissions per year. [2]

The total bus fleet in Porto Alegre is 1.592. The maximum allowed bus age is 14 years. So, with basic basic calculation, we need to change 114 buses per year. (1,592/14= 114). Which reduces would reduce overall carbon emissions by 0,21% yearly. In 14 years, our project could reduce the total carbon emissions by 3% overall.

An electric bus saves $0.11 (unit of currency is in USD) worth of fuel per kilometer. If we consider the whole life cycle of the bus, it saves around $55.000.[3]

A BYD eBus BD11 costs around $550.000 in Brazil, whereas the Mercedes-Benz Citaro G costs about $400.000. It is also possible to reduce maintenance costs up to $125.000.

The Leapfrogging to E-mobility Acceleration Partnership (LEAP Fund) provides grants for projects in Africa, Latin America and Southeast Asia of up to $150.000 per year.[4]

Brazil's Ministry of Cities announced a $1.8 billion investment in fleet renewal projects across 98 municipalities, including subsidies for over 5,300 electric and hybrid buses, which can be used for additional support.

According to World Bank’s research, Sao Paolo could save up to $15,1 billion per year if it reduces carbon emissions to the recommended threshold.[5] If we adjust that number to reflect the two cities’ population and air pollution levels, it translates to about $1,514 billion.

(1.389.322 / 11.895.578 * 18 / 21)

São Paulo:

Population: 11.895.578

Pollution: PM10: Recent average data indicates around 21 µg/m³.