Friday, July 10, 2020

Plant- Microbial fuel cell: Generating electricity from green, living plants

This article is by

Share this article

Article Contributor(s)

Charvi Trivedi

Article Title

Plant- Microbial fuel cell: Generating electricity from green, living plants

Publisher

Global Views 360

Publication Date

July 10, 2020

URL

Marshland near Blythburgh. View over the tidal River Blyth

Marshland near Blythburgh. View over the tidal River Blyth  | Source:  Eileen Henderson via Wikimedia

Humans are capable of discovering and creating great things with the help of science and one such impressive discovery is that green, living plants can generate electricity. It may seem unbelievable, but not impossible.

One must be wondering how this technology works. Well, the answer is quite simple; photosynthesis. Plants excrete organic matter into the soil as a result of photosynthesis. Only some of the organic matter is used by plants and the rest is released in the soil. This released organic matter is broken down by bacteria. In the breakdown process, electrons are released as a waste product. Since the movement of electrons produces electricity, these electrons, which are of no use to the plant, can be harvested. The best part about this innovation is that the plants from which energy is being generated are not affected in any way.

This idea was first put into use by a Dutch start-up called Plant-e. This company was launched in September 2009 and is successful in launching and selling many environment- friendly products like DIY kits to the public for experimentation purposes and modular systems which could be easily installed on green roofs for abundant electricity production. Plant-e is involved in various projects, within The Netherlands, like automatic lighting systems in gardens and many more.

This technology works with the plants which thrive in moist soils and where the water is present in abundance. Therefore marshlands, paddy fields and deltas are some of the most suitable places for setting up plant batteries as a huge amount of water is present in those areas. Hence, the use of this technology is limited to certain geographic areas containing moist soils and cannot be used in arid regions. It may, however, promote the growth of more trees and plants which will gradually reverse the malicious effects of global warming.

Another obstacle in widespread adoption of this technology in today’s time is the high cost of installation of the system. The initial adopters of this technology are those who are attracted by the efficiency and eco-friendly nature of the plant batteries and willing to pay a premium for it.

The concept of plant batteries can be further taken into rural areas where most of the population still does not have access to adequate electricity. It is estimated that plant-MFC technology can cover upto 20% of European Union’s primary future electricity needs. Also, plants are almost 100% efficient at converting photons from sunlight into electrons which indicates a bright future for this technology. However, more research needs to be done in this field.

Another innovation in the field of green electricity is using algae , which often grows in ponds and rivers, for generating electricity. The basic concept which explains the working is similar to the way plants are able to produce electricity; photosynthesis.

Various other ventures in the field of renewable energy also include vegetable batteries, meaning, electric power generated from fruits and vegetables like lemons, tomatoes and potatoes, have been investigated. According to experiments, at least 3 to 4 vegetables are required just to light a small LED bulb. Moreover, it leads to poisoning of the vegetables and those food products need to be thrown away, without being useful for consumption purposes. It is therefore not a viable option for energy production.

Plant based electricity generation is still an evolving technology which has immense potential for producing energy in an environmentally sustainable way. It will realise full potential when the installation cost is attractive enough for the farmers to prefer it over the electricity grids or fossil fuel based personal electricity generator sets.

Support us to bring the world closer

To keep our content accessible we don't charge anything from our readers and rely on donations to continue working. Your support is critical in keeping Global Views 360 independent and helps us to present a well-rounded world view on different international issues for you. Every contribution, however big or small, is valuable for us to keep on delivering in future as well.

Support Us

Share this article

Read More

February 4, 2021 5:16 PM

Catalonian Secessionist Movement in Spain: The Genesis and Present Status

Catalonia with its capital in Barcelona, is one of the wealthiest and historically significant regions of Spain. The region is home to around 7.5 million people and has its own official language, parliament, flag, and anthem.

The region was granted considerable autonomy by the 1978 constitution of Spain. The legislature of the autonomous Catalan region passed Statute of Autonomy which was approved by the national parliament and ratified by the Catalan electorates in a referendum in 2006.

What’s the latest buzz surrounding the region?

Pro-referendum rally in Montjuic, Barcelona | Source: Amadalvarez via Wikimedia

On 1st October, 2017, a referendum was organized in Catalonia for independence despite opposition from the central government of Spain. Owing to the resistance from Madrid, the voter turnout was just a lowly 43%. However, the Yes option won by a massive 90% margin.

Under a tense environment, the separatist majority in the Catalan parliament announced independence on 27th October, 2017. However, Madrid reacted strongly to the move by dissolving the Catalan parliament under Article 155 emergency powers and initiated a violent crackdown on the protesters and separatist leaders in the region. Nearly three years since the referendum, Catalan leaders remain in jail or in exile. The entire crisis has been termed as Spain’s biggest political-crisis since 1975, when democracy was restored post General Franco, the military dictator’s death.

Catalonia- A brief history

Supporters of General Franco | Source: Wikimedia

Catalonia as a region enjoyed a high level of autonomy before General Francisco Franco led Nationalist forces overthrew the Spanish democratic republic in 1936. Overthrow of Spanish democratic republic resulted in a three year long Spanish Civil War which raged from 1936 to 1939. In 1938 when the country was going through a phase of overhyped nationalist sentiments during the civil war, General Franco abolished the region's autonomy. General Franco ruled Spain as a dictator from 1936 till he died in 1975. After his death, Spanish democracy and Catalonian autonomy were restored once again.

There were calls for independence of Catalonia from fringe elements from time to time, but it was not supported by the mainstream political or social organisations. However this changed when Spain’s Constitutional Court issued a landmark ruling In 2010 and declared some of the articles of the 2006 Statute of Autonomy as unconstitutional.

There were massive protests in Catalonia against the Supreme court ruling, specially against the provision which place the distinctive Catalan language above Spanish in the region and ruling that “The interpretation of the references to ‘Catalonia as a nation’ and to ‘the national reality of Catalonia’ in the preamble of the Statute of Autonomy of Catalonia have no legal effect.”

Why do Catalans insist on independence?

Concert for Catalonian Independence | Source: Núria via Flickr

A lot of Catalans believe that Catalonia has a moral, cultural and political right for self-existence and that it has long put Spain’s best economic interests in priority despite not getting enough in return. Many Catalans are also unhappy with the decision of Spanish SC to declare the 2006 Statute of Autonomy as unconstitutional. They argue that it would have given Catalonia greater independence and by annulling it Spain is interfering with the internal affairs of Catalonia.

A timeline of Catalonia’s modern independence movement

Carles Puigdemont, the regional President of Catalonia | Source: Wikimedia

On September 11, 2012, thousands of protesters gathered in Barcelona to show support for the independence movement. Later in November, signaling a major shift in the politics of the region, the majority of the seats were won by pro-independence parties in the Catalan regional parliament.

On November 9, 2014, Catalan authorities held a mock vote for an independence referendum despite a prohibition order from Madrid. The then regional president Artur Mas, along with three other Catalan cabinet members were later fined for disobedience and misuse of public funds.

On June 9, 2017, Carles Puigdemont, the then regional president of Catalonia announced plans for a ‘binding’ independence referendum. Madrid declared the referendum as illegal and Spanish Prime Minister Mariano Rajoy vowed to stop the vote.

On October 1, 2017, the referendum was organized under a tense atmosphere which saw a lowly 43% voter turnout. Reportedly the Civil Guard and National Police forces raided a few polling stations and clashed with the voters even as the Catalan Police mostly stood down. Puigdemont claimed a landslide win for secession in the referendum.

On October 27, 2017, the Catalan parliament declared Catalonia as an independent republic even as no foreign nation recognized the declaration. Spain PM Rajoy immediately invoked constitutional powers to take over Catalonia and fired Puigdemont and his cabinet members.

On October 31, 2017, Puigdemont and a few of his deposed cabinet members fled from Catalonia to Belgium. Puigdemont successfully fought against his extradition to Spain and established his residence in Waterloo.

Aftermath of a failed independence attempt

Ever since Puigdemont fled to Belgium, Spain took control over the region and has sent all the major accomplices of Puigdemont and pro-independence leaders to jail. Most of them have been served with lengthy jail terms for being a part of the controversial independence referendum of October 2017.

Although direct rule was lifted after the formation of the new Catalan government in June 2018, the single biggest winning party was the center-right, pro-unionist Citizens party, which took 37 seats. Three pro-independence parties also secured around 70 seats combined in the 135-seat regional parliament election. Protests for independence have mostly faded away in the region.

What happens next?

The current Catalan regional president, Quim Torra has called for the Catalans to greet guilty verdicts with a ‘huge show of nonviolent civil disobedience’. Spain’s Prime Minister, Pedro Sanchez has been much less brutal compared to his predecessor Rajoy. However, he has maintained that any negotiations will have to be adhered to by the constitution while ruling out the possibility of a referendum.

The political tussle between Puigdemont and his allies who favor pressurizing Madrid with provocative moves, and the Catalan Republic Left which has sought to employ a less confrontational and more practical approach has made the situation quite volatile. However this apparent disunity among the political leadership of Catalonia has resulted in a gradual reduction of public support for the independence movement of Catalonia.

Read More