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Pedelecs: Environmentally Friendly Car Substitute – If You Take Care of the Battery

E-bikes are often an environmentally friendly alternative to cars, causing only a fraction of the emissions, which primarily occur during battery production. They are particularly an attractive solution for commuters and people with longer commutes. However, attention should be paid to the proper disposal and recycling of batteries.

Low-emission car replacement: The UBA calculates that a pedelec generates only 15 g of CO2 per person-kilometer, while a car averages 194 grams. | Photo: dpa/Zacharie Scheurer
Low-emission car replacement: The UBA calculates that a pedelec generates only 15 g of CO2 per person-kilometer, while a car averages 194 grams. | Photo: dpa/Zacharie Scheurer
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Johannes Reichel

They are everywhere: e-bikes. Whether in the city, in the countryside, or on the way to work – more and more people are switching to electrically assisted bicycles. But how environmentally friendly are e-bikes really? It very much depends on the perspective. Compared to cars, e-bikes offer a number of advantages. They are not only more cost-effective and good for health, but also more environmentally friendly. According to the German Environment Agency (UBA), e-bikes cause only a fraction of the greenhouse gas emissions compared to cars.

Fewer Emissions than Combustion Vehicles

The UBA calculates CO₂ emissions per passenger kilometer, which is a unit of measure that describes the transportation of one person over the distance of one kilometer. Emissions from vehicle use, energy provision, vehicle manufacturing, and infrastructure are added together for this calculation. Accordingly, a pedelec generates about 15 grams of CO₂ per passenger kilometer, while in comparison, a car generates around 194 grams of CO₂. Simply put, e-bikes cause approximately 7.7 percent of the greenhouse gases that cars do, according to the UBA.

The crux: According to the UBA, switching from a bicycle to an e-bike only offers environmental benefits if the e-bike is regularly used for trips that would otherwise be made by motorized vehicles. Therefore, switching to an e-bike instead of a bicycle does not offer any environmental benefit, as the mere production of the required battery causes additional CO₂ emissions.
 

Environmental Impact and Proper Disposal of E-Bike Batteries

According to the UBA, the greatest environmental impacts of e-bikes arise from the production of their batteries, which are predominantly lithium-ion batteries. These contain raw materials such as cobalt, nickel, iron, copper, aluminum, and lithium, whose extraction is often associated with significant environmental impacts, such as high water consumption and soil contamination. Therefore, e-bike batteries should be removed and handed in at battery collection points before disposal whenever possible, says the UBA. Lithium batteries can spontaneously ignite and cause fires if disposed of incorrectly. Used e-bike batteries are considered industrial batteries and are accepted free of charge by distributors. These distributors are legally obligated to accept batteries of other brands and types if they offer replacement drive batteries. Many recycling centers also accept these batteries free of charge, according to the UBA. Those who do not want to make two trips should inquire beforehand.

Translated automatically from German.
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