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Monday, September 25, 2023
SANTIAGO, Jul 15 2022 (IPS) - The manufacture in Chile of an electric bus christened Queltehue, a wading bird native to the country, is another step towards electromobility and in the fight against pollution that triggers frequent environmental crises and smog emergencies in Santiago and other cities.
The National Electromobility Strategy, updated and relaunched in 2021, aims for 100 percent of the public transport vehicle fleet and 40 percent of private cars to be electric by 2050. By 2035, internal combustion engine cars will no longer be sold in this country.
That means that in less than 30 years some five million vehicles will switch from fuel to electricity, avoiding the emission of some 11 million tons of carbon dioxide (CO2) per year and reducing spending on oil and petroleum products by more than 3.3 billion dollars a year.
Electric mobility can also be clean and with zero emissions, if this long narrow South American country sandwiched between the Andes Mountains and the Pacific Ocean takes advantage of its enormous potential to produce solar and wind energy thanks to the abundant sunlight in the Atacama Desert and the strong winds in coastal areas and in the southern region of Magallanes.
However, much remains to be done because there are currently only about 2,750 electric vehicles in circulation in Chile and there are only about 310 public chargers to serve them.
A notable stride forward in the last four years has been the increase in the number of electric public transport buses, which now account for 20 percent of the 6,713 buses that serve passengers in Santiago, where 7.1 million of the country’s 19.1 million inhabitants live.
In May, Minister of Transport and Telecommunications Juan Carlos Muñoz confirmed that another 70 electric buses will serve some 50,000 daily passengers in the working-class municipalities of La Pintana, San Joaquín and Puente Alto, on the southern outskirts of Santiago.
“Bringing electromobility and its benefits to sectors that have been left behind by development not only makes a city more sustainable, it makes it more inclusive,” he said at the time.
“Quality transportation is fundamental for people to leave their cars parked and opt for more efficient modes, which will allow us to make Santiago an environmentally friendly city,” Muñoz added.
So far, electric buses for public transport, a sector that is in private hands in Chile, have come from Chinese companies, especially BYD and Foton, but that is expected to change as electric mobility expands.
The strategy not only targets public transportation, but also freight, commercial vehicles and vehicles used in key industries in the local economy, such as mining.
Successful experience in the mines
Felipe Cevallos, a 32-year-old mechanical engineer, and Ricardo Repenning, a 33-year-old electrical engineer, are partners in the Chilean company Reborn Electric Motors, which began by converting diesel vehicles to electric ones, but this year will manufacture 104 electric buses for the El Teniente mine of the state-owned copper company Codelco.
These buses do not emit CO2 or make noise and can safely carry 24 passengers each.
“We have successfully carried passengers a total of 210,000 kilometers in the mine in difficult conditions of mud and salt, steep slopes and high levels of humidity,” Cevallos proudly told IPS during a visit to the company’s plant in the municipality of Rancagua, 86 kilometers south of Santiago.
The 3,000-square-meter automotive facility employs 50 people whose average age is 30, and can produce up to 200 vehicles per year.
The buses are made up of 45 percent Chilean parts, while the bodies are brought from Brazil, the engines come from Canada and the batteries are made in China.
“We manufacture the power and control branches, the distribution strip and the low to high voltage domains, the structures, displays and software to run the systems and the engine cooling cycles and other components,” Cevallos said.
At El Teniente, the world’s largest underground copper deposit, there are 24 double-gun 150-kw chargers that can charge two Queltehue buses in 40 minutes.
(The scientific name of the Queltehue or Southern Lapwing, the species for which the bus was named, is Vanellus chilensis.)
Other buses operate from Rancagua and another 10 chargers are being installed at the terminal of Transportes Link, the operator of the public transport service, in partnership with Reborn.
“Fast charging requires more power and better splicing. The electrolinera charging station charges faster, but the vehicle must be able to support faster charging,” Repenning explained.
Codelco, the world’s largest copper producer and exporter, is committed to using only electric vehicles to transport workers at El Teniente, which is located under the hill of the same name in the municipality of Machalí, some 120 kilometers from Santiago.
“The 104 buses that we will deliver will transport the workers between their arrival points and locker rooms to the interior of the mine. Each one travels 15 to 20 kilometers, largely through tunnels,” said Repenning.
He added that Reborn manufactures and reassembles electric buses.
“We started out by reconverting diesel buses that had reached the end of their useful life and transforming them into 100 percent electric. In 2020 we started making brand-new 100 percent electric buses in the Rancagua factory,” he explained.
The company is now focused on transportation in the mining industry, but its technology can be applied to urban and rural transportation – and that is the direction of its future expansion.
Reborn has been recognized by SAE International, formerly named the Society of Automotive Engineers.
“When the batteries were very heavy, a lot of passenger capacity was lost. Today, batteries have greatly improved their energy density,” and that facilitates the electrification of public transportation, Repenning said.
Land transportation absorbs about 30 percent of the total energy consumed by Chile and the greenhouse gases it generates represent between 17 and 25 percent of the total gases emitted by this country.
Luciano Ahumada, director of the School of Information Technology and Telecommunications at the Diego Portales University (UDP), told IPS that “electromobility is a tremendous tool, perhaps the most important one, for achieving carbon neutrality and thus making us responsible for our environment.”
Ahumada said that among the biggest problems of electromobility are the high price of vehicles and the lack of confidence among users that they can count on a network that recharges batteries in a timely manner.
An electric bus in Chile costs around 300,000 dollars and a car around 50,000 dollars. But the operating cost of both is a third or a quarter of that of combustion engine vehicles.
“The biggest challenge is to generate an incentive for the purchase and production of electric vehicles and to create and install charging infrastructure and a charging management system that is reliable and sustainable,” said Ahumada.
Héctor Novoa, a professor at the UDP Faculty of Architecture who is working on a doctoral thesis on electric mobility, believes that the Chilean electromobility strategy has pros and cons.
“Chile has the largest fleet in the southern hemisphere with electric buses in public transportation,” he noted.
“But its public policy has gone hand in hand with favoring the involvement of actors that have a share of the energy business. Electromobility is also a business model,” Novoa said.
“Copec has electric vehicle terminals. Where previously the buses were supplied with fuel, now they are sold electricity. Public policy has gone hand in hand with the private sector to secure for it certain parts of the business,” Novoa told IPS.
But the academic regretted that the installation of public electric chargers “has targeted certain upscale neighborhoods and municipalities of Santiago, which points to a strengthening of inequality.
“The charging infrastructure is too limited to allow charging in public places without being exposed to being vandalized,” he acknowledged.
Novoa also called for greater clarity regarding how the city would absorb the new charging infrastructure and make the distribution more egalitarian.
He concurred with Ahumada that “electromobility is a key element for decarbonization” and he also believes that the high price of electric vehicles limits their development.
He stressed, however, that “electromobility is based on an awareness linked to scientific evidence in international forums that brings the ecological and scientific world closer to politics.”
The academic also urged consideration of a largely ignored aspect: the fact that an important part of vehicle emissions comes not from exhaust but from brake pad and tire wear that produces toxic particulate matter.
In saturated zones this fine particulate matter pollutant is significant, Novoa said.
“Climate change has accelerated the transformation processes associated with decarbonizing not only transport, but also other areas linked to industry, such as energy generation,” he said.
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