A Popular Way to Low Carbon City: Bikeshare System

If you are traveling in Shanghai, one of the largest cities around the world, you may be able to choose a new means of transportation by installing an app on your cell phone. The bike sharing systems, operated by several bike-sharing companies deployed in most large cities in China, is more and more popular because of the assets of lower carbon emission and higher mobility. The same trend could also be found around the world.

Bike sharing system is significantly beneficial to the reduction of carbon emission. The research carried out by UCL has shown that the public bike system has reduced 25240 tons of carbon dioxide in 2016. That emission could have been caused by the other parts of the transportation system, however, because of the bike sharing system have more advantages over the other non-human powered transportation system, people would switch to biking.

The bike could solve the problem caused by the last mile, which is a drawback of the public transit system, you could never make the stop just next to your home. However, with the help of the bike sharing companies, the bikes would be distributed to almost every part of the city based on the data processing and monitoring platform. That would make it easier for people to find a bike nearby. Also, the modern bike sharing system could allow people to leave the bike at the corner when they finish the trip, making it a lot easier to plan and even carry out a short distance trip. Another merit given to the biking system is most major cities around the world would try to update their scenery, making people more likely to ride a bike. Based on these assets, people would be more willing to choose the shared bike to travel instead of waiting for a bus or driving by themselves. In fact, according to Zhang’s research, people get more mobility with the help of the bike sharing system.

In order to lower down the carbon emission in urban areas, we couldn’t only try to limit the usage of petroleum or electricity powered transportation vehicles. The basic needs of the people should be considered. However, the shared bike could reach the balance easily. The bike sharing system is a large network operated by multiple companies. The bike is distributed either by the last user or by the staff of bike sharing companies. In that way, you could find a shared bike waiting for you almost everywhere. After you arrive at your destination, what you should do is to lock your bike and report to the sharing system and the bike could be registered by the next user.

The bike sharing system could mitigate the gap between the long distance public transportation system and the destination, which would be a strong competitor against the taxi. For example, if the target place is out of reach on foot but still in reach of the bike, people may use the biking system instead of the public transportation system because the stops of the transportation system may not be just next to the place they plan to go. Another advantage of the bike sharing system is that they could provide the service other than just moving people to the place they want to go. They could offer a special service of enjoying the trip.

Now according to the bike sharing data around the world, bike sharing is a very promising substitute of the public transportation system. Some cities around the world, like Vancouver and Melbourne, is perfect for bike riding. These cities have flat roads and less urban vehicle transportation flow. In the meantime, these cities have good sceneries for people to appreciate.

Reference:  Zhang, Y., & Mi, Z. (2018). Environmental benefits of bike sharing: A big data-based analysis. Applied Energy, 220(December 2017), 296–301. https://doi.org/10.1016/j.apenergy.2018.03.101

New Solution of Urban Energy: Electric vehicles start to replace traditional vehicles in China, from the public transportation system

If you visit Wuhan, one of the largest city in China and you take a bus these days, you may be impressed by the nearly zero-noise experience and the strong feeling of acceleration. That is because 30 percent of public transportation buses have been updated into electric buses. This data is from Changjiang Times, a local newspaper.

According to Government of Wuhan, Wuhan now is trying to build more than 70000 new charging facilities for both electric buses and other electric vehicles by 2022. And with the help of several universities in Wuhan, the government is even more capable to push this trend in the whole province.

The electric vehicle has several environmental and social benefits. Except for the low emission, electric vehicles have multiple advantages not only to the environment but also to the power supply system. With zero emission feature, the electric vehicles would make the city greener, however, the large number of electric vehicles on the road or at home could be a great buffer for the city power supply system. Electricity price could be managed to let the owners charge the vehicles during valley period, also, the electric vehicles could provide additional power to the power grid during peak hours, helping optimize the power system designation! With the support of electric vehicles, the power supply of the grid could be steady and less energy would be lost.

Nowadays, China is encouraging the use of electric vehicles in the whole country by giving the bonus to the electric vehicle manufacturers and consumers. Now over 17.29 million electric vehicles are running on the roads in most mild-climate provinces in China. Yes, the battery couldn’t work at low temperature. But this long mission is faced with many doubts from the EV scholars in China. ‘Though EV seems to be green, it is hard to quantify the impact of the electric vehicles on the energy usage and the environment. ‘Dr. Yuan, Xinmei, an expert of electric vehicles who is also a professor at Jilin University said. However, he is still positive about the future of EV and now he is conducting research to find out the truth of EV.

Another factor that would make it even more tricky to decide the EV’s position in the environment is where the electricity comes from, said Dr. Yuan. In China, the electricity mostly comes from burning coals which could cause serious pollution, making electricity not so green compared with Canada where electricity mostly come from hydropower or wind power. ‘This would be a long journey, from the regulations to the energy structure we all have to make a change, but EV would be the best solution finally. Dr. Yuan told the author.

Though EV is more and more popular in China. This country may go through a period when there might not be great benefit brought by the EV, but finally, with the help of an optimized electric power generation system, the EV could contribute much to a clean environment.

 

Reference: Yuan, X., Li, L., Gou, H., & Dong, T. (2015). Energy and environmental impact of battery electric vehicle range in China. Applied Energy, 157, 75–84. https://doi.org/10.1016/j.apenergy.2015.08.001

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