This article is available also in spanish here

How Taiwan wants to turn its metro stations into vertical farms

My list

Author | M. Martínez Euklidiadas

Taiwan plans to use obsolete suburban infrastructures to make way for vertical and indoor farming. At the moment it is still in its test phase, but the aim is to use the unused metro network to feed the population and strengthen food safety. It is not an isolated case. Other countries are transforming their farming and taking it indoors. Why? If this requires lamps to imitate the sun?

What is vertical farming?

Vertical farming is the practice of growing produce in vertically stacked layers. This type of farming is normally performed indoors, using aeroponic and hydroponic techniques and following a technologically advanced, partially automated and even robotic industrial process.

What is the purpose of vertical farming?

The purpose of vertical farming is just the same as the so-called conventional farming: to feed an increasingly starving world (particularly relevant now with a population of 8 billion, although the aim is to eliminate some of the disadvantages inherent in today's farming methods.

In the case of small countries, like Taiwan, Singapore, Andorra or Monaco, this type of farming could alleviate the dependence on foreign imports; and the same could be said of urban environments, which is a relief for biodiversity, which is suffering due to the extensive growth of agriculture.

Advantages and disadvantages compared with traditional farming

What are the advantages and disadvantages of this method of farming?

Less land use

The main advantage of vertical farming is that it enables less land to be used and prevents widespread agriculture, which enables land currently being used for farming to be used for environmental restoration. In 2020, a report was published on wheat grown in indoor vertical farms with between 10 and 100 levels. It means that an area of 1,000 m^2^ could produce the equivalent to anywhere between one and ten hectares in a controlled manner, with much higher yields and using fewer resources.

Vertical farms on urban land could increase the already high costs per square meter and increase gentrification problems, but in suburban areas it could help to act as a perimeter together with urban green belts, which are extremely efficient in terms of preventing urban sprawl. Where they are located is key.

High energy efficiency

Energy and resource efficiency is also relevant. There is already a 'highly efficient lettuce' thanks to indoor farming. Farming emits 18.4% of greenhouse gas emissions, partly due to deforestation, intensive use of oil-based chemicals or the actual use of fuel in transport. Bringing production centers closer and thus completely reducing climate-related losses or those due to weather events would help a great deal.

Dependent on extremely innovative technology

However, there are some significant challenges associated with vertical farming. Firstly, many people do not fully understand the concept and consider it to be alienating. Many confuse it with other technologies such as genetic modification.

In addition, the technological level required makes it less accessible to existing farmers, which makes them reticent to adopt this technology and even oppose it. That same technological dependency partly reduces the efficiency of it.

For example, vertical farming requires lighting systems to imitate sunlight, which makes it energy intensive. Overall it uses less energy than soil farming, but it uses more electricity instead of combustion chemistry. This creates certain obstacles, particularly with regard to public acceptance. Information is key.


Related content

Recommended profiles for you

Remember to activate your profile to network!
Activate profile
Luis Fueyo Mac Donald
Luis Fueyo Mac Donald
Junta directiva
BASS d.o.o. Bastl
BASS d.o.o.
We are the biggest software vendor for public services in Slovenia
Rizzah Aulifia
Vice head of scholar
Montserrat Jimenez
Montserrat Jimenez
Esade Business & Law School
Rambla of Innovation Director
Tudor Ye
Tudor Ye
Qicheng Electrical Equipment Co.,Ltd
Business Development Director
Alexander Lehnert
Co-founder of the company and Head of Design
Suraj Urang
Suraj Urang
Kasem Bundit University
1st Year Student
Guillaume Kerckhofs
Guillaume Kerckhofs
Co Founder
Dany El Feghali
Dar Al Handasah
Instrumentation & Control Engineer / Dar
Heidi Valdez
Revitaliza Consultores
Comercial Manager
Vera Häni
Vera Häni
Sales & Marketing Manager
Professional independent
Mehdi Shahkaram
Fayola Zulkarnaen
SMA Santa Ursula
Jaideep Mainkar
Jaideep Mainkar
Corine Lopes
Viseu City Hall
Landscape architect
Paula Guillaumet
Paula Guillaumet
Endrava AS
Advisor in Sustainable Smart Cities
Lukas Lengauer
Vienna Business Agency
Head of Sustainable Technologies Team
Widhoratna Jiwa Adlia Dhea
St legere
Junior Landscape Architecture

Thank you for registering to Tomorrow.City. You can now start exploring all the content for free!
Only accessible for registered users
This content is available only for registered users
TO: $$toName$$
SUBJECT: Message from $$fromName$$