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Clean energy without foreign exchange

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[This article is dedicated to the late Dr. Janaka Ratnasiri who tirelessly worked hard to make the country move away from fossil fuels.]

According to a news report published in The Island (17 July 2021), the CEB Engineers Union had stated that the government’s target for increasing to 70% the electricity from renewable energy to the national grid is not practical. Apparently, even if it were practical, the CEB does not have computerised infrastructure for managing the variable switching-in and switching-out, needed for integrating “non-firm” energy sources like wind and solar into the grid.

The CEB can say, if we only had that “excess capacity” then blackouts wouldn’t happen! But this is irrelevant, given Dr. Siyambalapitiya’s admission (The Island 19-08-20) that “the system” cannot even handle a 0.5% power fluctuation from “unmonitored” sources like “solar and wind”.

Engineer S. Kumarawadu, the President of the CEB Engineers Union, claims that transmission lines have to be upgraded to meet targets. That should have been a part of the long-term plan anyway. One hopes that the CEB union is more reliable than the GMOA, where Dr. Padeniya has been making statements from cloud cuckooland itself (see https://www.youtube.com/watch?v=rGe6ld2q1vs).

The views of the CEB Engineers Union are very relevant to the country’s energy planning. However, it also has gross vested interests. What the power sector in Sri Lanka does NOT have, is an independent Research and Development (R&D) arm, similar to the Tea Research Institute, Coconut Research Institute, etc., available for agriculture. It is the vital research done by the rice research institutes in developing high-yielding seeds that kept up with the population explosion and fed the country. They faced political bulls running amok in the agricultural china shop, advocating a return to traditional seeds, traditional manure, and the use of occult practices like “kem”, while advocating getting rid of “all chemicals”.

As they are not guided by an R&D arm, the engineer managers choose conventional turn-key solutions that they know of. The CEB is an “unthinking beast” that does not run research projects or pilot plants and patent new ideas. Its “Long Term Generation Planning” (LTGP) Branch makes a no-brainer expansion plan every year.

The CEB’s LTGP 2015-2034 is still excessively tied to fossil fuels. This is not surprising, as it does not have the capacity to integrate new technologies, or even run a proper simulation of its own system, its power failures and blackouts. It has gone to Canadian, European or Japanese organisations to do simulations that should have been “in house” jobs. Its “research” is at best a tender board tango done with wheeler-dealing politicians. The CEB ends up blaming politicians who canceled “well-laid” LTG plans, while the politicians blame an uncooperative “CEB mafia”!

Consider the claim (see The Island, 17th July) that supplying 70% of the needed power using renewable sources is not practical. This is contradicted by other information sourced to the CEB itself. A news report (23-12-2019, The Island) claimed that when there were heavy rains, 70% of the power needed came from hydroelectricity. Similarly, on 10th August 2020 the CEB reported that over 50% of the power came from hydro as there had been adequate rains.

Some 40 GWh is needed at present. Hydroelectricity provides about 20 GWh of this, while coal provides some 18 GWh. As mentioned above when there is sufficient rain, 70% of the needed electricity comes from hydro! That is, some 28 GWh can be harvested if the water levels are preserved over the two monsoons. So, this increased the the hydro-electric output by some 40%. This figure is consistent with high hydro-electric outputs in the rainy seasons.

When the reservoirs are full, the evaporation is also extreme. King Parakramabahu wanted to use every drop of water reaching the ocean but did not consider evaporation. In my writings during the past two decades, I have pointed out the need to stop the over 30-40% evaporation losses happening day and night, due to the wind and the prevailing heat. These worsen with global warming. During heavy rains the water spills over and gets wasted. Additional storage to save spill water by restructuring reservoir dams, and using locally made floats to cover parts of the surface to cut evaporation can boost the hydro-electricity output over 30-40%.

So far, just by protecting the water from evaporation and spillage, we gain perhaps a 30% boost in hydro-power without using any solar panels. Floats can be added WITHOUT foreign exchange. If solar panels and wind turbines are added around these reservoirs, even more energy is harvested. Do your own calculations to see what you get! For answers, see my earlier articles, e.g., The Island of 15.07.2020, or 31-08-20: https://island.lk/sri-lankas-power-supply-blackouts-and-how-to-prevent-them/). Hence you don’t need any fossil fuel in the end.

Evaporation control will become extremely acute with increased global warming. Otherwise, even the 20GWh currently supplied by Hydro will dwindle down due to extended droughts. However, once the systems are set up to prevent evaporation, the gained 30-40% increase in hydroelectricity is produced by a gain in head water in the reservoir. NO STORAGE BATTERIES ARE NEEDED. This is “firm energy” and remains compatible with the utterly outdated grid stabilization schemes still used by the CEB.

So, preventing evaporation will rapidly increase the island’s power capacity by, say, 30% . Given some 22 major hydroelectric reservoirs with a surface area of about 1000 ha each, if 50% of the surface be covered using floats, 11,000 ha (110 sq km) are protected. It can be shown that the environmental impact is positive. The water quality is improved due to reduced algae growth. The annual hydro-power of about 6000 GWh will rise to 8000 GWh when evaporation is cut. This is the cheapest and cleanest possible electricity!

Typically, sunlight can annually produce about 100-200 GWh per sq. km (100 ha) under Sri Lanka’s conditions. If solar panels are also placed on the floaters deployed to cut evaporation, then 1000-2000 GWh per annum of solar energy can be harvested, with no hassle or delays in acquiring land rights. Any excess daytime energy can be saved by retaining the corresponding amount of hydro-head in the reservoirs, without sending the reservoir water down into the turbines. That is, solar electricity has been stored without batteries and converted to firm power!

Furthermore, evaporation shields, equipped with solar panels are a one-time capital investment, and there is no need for continued importation of LNG, coal or oil as envisaged in the conventional expansion plan of the CEB that takes no account of global warming. The type of costly infrastructure development needed for LNG is not needed for the simple approach of cutting down evaporation, as the first conservation step that will boost Sri Lanka’s clean power capacity. And yet, in the LTGP 2020-2039, the CEB has only paid lip service to government policy on fuel diversification by adding LNG-based generating capacity, whereas LNG is an expensive fossil fuel that should have been avoided! Why is LNG energy being falsely referred to as “clean energy” in CEB documents?

However, unconventional solutions should NOT be implemented without running pilot projects. Such projects must be run by a yet to be established Power Research Institute, which should have been established at least in the days of the accelerated Mahaweli project. A first floating solar project has been proposed near the Parliament, on the Diyawanna Lake. But this is largely a no-brainer as the Diyawanna lake is not connected to a turbine, and no gain in evaporation is achieved. No natural mechanism of energy storage, as saved water is available and one has to resort to batteries.

Some unconventional solutions that have been proposed (without any trials or pilot projects) include the use of urban garbage as an energy source, while ignoring the now well established biomass approaches that use fast-growing Giricidia or Castor to produce dendro energy. Several 10MW dendro plants already exist, and establishing 20 more within the next 2-3 years, to add 200MWs of capacity is straightforward.

Attempts to use urban garbage in settings similar to Sri Lanka, e.g., India, has led to failure in actual operations. Only a total of 138 MW has been installed in India by 2019 although its garbage output is massive. The extreme wetness of the garbage, inadequate separation of wet garbage from dry garbage, and the difficulties of plant operation for methane production, incineration and pyrolysis, and disposal of toxic ash have become serious problems. This is, in my view, an unsuitable approach for Sri Lanka, although suitable for a research and development (R&D) pilot project, since Colombo alone produces 2-5 thousand tons of urban garbage per day. Sri Lanka should develop dendro power while leaving “garbage to energy” conversion as an R&D project.

CHANDRE DHARMAWARDANA

Canada



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Opinion

Future of world religions

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I refer to Dr Upul Wijayawardena’s recent letter on science and religion. I agree with him on the fate of religions in the modern world and would like to add the following observations on the evolution of religion and the advent of AI.

Religious philosophy evolved only in ancient India while it remained static with monotheism in other parts of the world. When the polytheistic Vedic religion arrived with Aryan migration to India, they found the ancient version of Jainism, which may have been practised over four thousand years as evidenced by some figures in meditation posture found in Mohenjo daro. By that time the indigenous religion had already abandoned the creator god or gods but still believed the mind as a permanent entity athman that survived death and continued in a cycle of reincarnation (samsara) due to results of any harmful action (kamma) even unintended performed in life collected in the athman. Salvation to a happy all-knowing permanent state named Kevala could be attained by the athman with extreme degree of self-mortification to destroy the past kamma attached to it, refraining from new kamma and developing the mind by meditation. As observed in progression from Veda to Upanishads the Aryan religion, evolution progressed with adoption of kamma, the cyclic existence of samsara, meditation and ethical behaviour in addition to prayer and sacrifice they practised for moksha.

The Buddha appeared in this philosophical atmosphere and denied both creator god and a permanent entity of athman. His psychology describes human behaviour based on the mind as a stream of changing consciousness. However, he accepted the cyclic existence of samsara; he said he verified the survival of consciousness at death with help of knowledge he gained from meditation. He prescribed a middle path to attain nirvana, a permanent state of happiness, avoiding self-mortification and redefined kamma to intentional activity only, both ethical and unethical resulting in bad and good results. He disagreed with the idea of kamma as the cause of rebirth. Following the Buddha, Vedantha religion reformed god to universal athman or brahman and evolved to modern Hinduism with a mixture of polytheism.

In his description of living beings in the universe, the Buddha has described some with a body made of fine material (brahma beings) in comparison to the gross material body of human and animal beings. One may assume the brahma body may not be carbon based.

The Buddha has also described living beings with physical body only (asannasatta) and another variety with mind only without a body (arupa satta). Therefore, it is not surprising to Buddhists that AI may evolve to become living beings if it develops a readily and freely available mobile source of energy and takes over the world with its superior capacity. AI already has information about Buddhist psychology. With that knowledge ‘AI beings’ may even become Buddhists not given to rituals.

According to the Buddha, brahma beings and asannasatta beings have very long lifespans as their bodies are not subject to decay and illness human beings develop. The new AI beings also may live as long as they wish because they may be able to repair themselves in case of developing physical defects. They would need only ethical behaviour to avoid destroying themselves by peaceful existence if they took over the world, as feared in some quarters.

However, as long as human beings exist in the world with death and uncertainty of what happens after death, they need a religion and rituals to give them psychological support. Even those who profess death is the end of life may have some doubt troubling their mind from time to time and may think of religion in times of adversity.

Ideally, human beings are free to accept one of the many versions of religious philosophies and respect each other’s choice and live in harmony. Unfortunately, extreme degrees of religious versions that cause division, unrest and violence will always continue to exist together with religions in the world.

Upali Abeysiri

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Opinion

The Cream of the Earth: Why Sri Lanka needs a Fruit Consumers Movement

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By Lalin I De Silva

Sri Lanka speaks constantly about hospitals, medicines, food imports, agricultural productivity and the rising cost of living. Yet there is one simple question we rarely ask:

Are we eating enough of the food that our own soil can naturally give us?

Fruit is perhaps one of the finest gifts of the earth to humankind. A ripe mango, banana, papaya, guava or avocado comes to us almost ready to eat. Sunlight, rain, soil, microorganisms, minerals and the labour of a farmer have already done most of the work.

That is why I like to describe fruit as the “cream of the earth.”

This is, of course, not an argument that fruit alone can prevent every disease, or guarantee longevity. Science does not support such exaggerated claims. But there is strong international evidence that regular consumption of fruits and vegetables forms an important part of a healthy diet and is associated with lower risks of several major non-communicable diseases.

Sri Lanka’s own dietary guidance encourages the daily consumption of fruit as part of a balanced diet.

The tragedy is that we live on an island capable of producing an extraordinary variety of fruits, while many families increasingly depend on highly processed foods, sugary drinks and imported snacks.

This deserves national attention.

We Produce — But Do We Connect?

Sri Lanka grows banana, mango, pineapple, papaya, avocado, rambutan, mangosteen, guava, woodapple, beli, pomegranate, durian and many lesser-known indigenous fruits.

Yet our fruit value chain remains fragmented.

The farmer often does not know the final consumer.

The consumer rarely knows the farmer.

Fruit travels through several intermediaries, sometimes suffering poor handling, unnecessary damage and price escalation along the way.

Consumers may not know where a fruit was grown, when it was harvested, whether it was naturally matured or what crop-protection practices were followed.

Meanwhile, a careful farmer, producing exceptional fruit, may receive almost the same farm-gate price as someone producing an inferior product.

That is not value-chain management.

It is precisely this disconnect that a new citizen-led initiative could begin to address.

25 Districts — 25 Consumer Societies

A proposal now emerging is to establish a Pure Sri Lankan Authentic Healthy Fruit Consumers Society in each of Sri Lanka’s 25 districts.

The concept should not become another organisation full of titles, meetings and ceremonial functions.

Its purpose must be practical.

Each district society could bring together consumers, growers, doctors, nutritionists, horticulturists, schools, universities, retailers, hotels, processors and young entrepreneurs.

The first task would be to understand the district itself.

What fruits are grown?

Where are they grown?

When are they available?

Which traditional varieties are disappearing?

Where can consumers purchase genuinely good fruits?

Where are the post-harvest losses?

What do farmers need?

What do consumers actually want?

From this information, each district could eventually develop its own Fruit Map.

Twenty-five district maps could then become a National Fruit Map of Sri Lanka.

From Anonymous Fruit to Traceable Fruit

Imagine buying a mango and scanning a QR code.

You could see the district, grower, variety, approximate harvest date and production information.

You could perhaps even provide feedback on taste.

That may sound futuristic, but the technology already exists.

The problem is not technology.

The problem is that our food system was never designed to connect the person who grows the fruit with the person who eats it.

Traceability could change that.

The principle is simple:

Know your farmer. Know your fruit.

Let the Consumer Lead

For decades, agriculture has largely been driven from the production side.

“How much can we produce?” has been the dominant question.

A healthier agricultural economy should begin with another question:

What does the consumer need, value and trust?

If thousands of consumers deliberately demand fresh, safe, flavorful and traceable Sri Lankan fruit, the message travels backwards through the entire value chain.

Retailers respond.

Farmers respond.

Nurseries respond.

Researchers respond.

Investors respond.

Government eventually has to respond.

That is the real power of an organised consumer movement.

Start With Children

Perhaps the most powerful campaign message could be remarkably simple:

Two Fruits a Day.

Imagine a Sri Lankan child coming home from school and asking:

“What are our fruits today?”

Imagine every school having a small fruit garden.

Imagine children being able to identify 10 Sri Lankan fruits, understand their seasons and know where they are grown.

Such behavioral change cannot be achieved merely by issuing circulars from Colombo.

It must become part of family culture.

Kandy Could Begin

Kandy would be a logical district in which to pilot the concept.

Its climatic diversity, surrounding agricultural communities, educational institutions, hotels, markets and strong plantation heritage provide an excellent testing ground.

A successful Kandy model could then be adapted—not blindly copied—across the other 24 districts.

The objective should ultimately be much larger than selling more fruit.

It is about reconnecting soil, farmer, food, consumer and health.

Sri Lanka does not need to invent every solution from outside.

Sometimes the answer may already be hanging from a tree beside us.

We simply have to recognise its value.

Know Your Farmer. Know Your Fruit. Live Well.

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Opinion

‘Outpost of Empire’

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Review

by Colleen Figg, Editor
and Reviewer – Amazon, New Voices Publishing

“Fernando echoes Macbeth with the line, “There is judgment here.” It captures the question running through the novel: can anyone participate in corruption and remain untouched by it? Beneath this satire is a dark story about power and the danger of believing, that someone else will always pay the price.”

Shavindra Fernando’s Outpost of Empire is a political novel set in the fictional country of Lackadasia. At its heart is a strong idea: an exploration of world politics, terrorism and the ways in which powerful countries manipulate smaller ones. Fernando is clearly writing about political issues that matter deeply to him.

The names immediately establish the book’s satirical character. Lackadasia, Burgherbugaria and the various Klowns suggest a world in which the people and places are exaggerated, but the issues beneath the exaggeration are recognisable. The playful language allows Fernando to approach terrorism, religious conflict and political corruption from an unusual angle.

Henry Stockwell is a central character: an ambassador who arrives in Lackadasia presenting himself as a friend of the country. He believes he understands how power works and treats the country, its politicians and its people as pawns on his personal chessboard. In his arrogance, he never doubts that he controls events rather than being controlled by them. This confidence makes him a compelling figure and in him, we explore the workings of political influence and the potential traps contained therein.

As the story develops, Fernando reveals a political world where causes are adopted when they are useful, people are exploited and discarded, and the truth becomes whatever those in power need it to be. Ordinary people suffer the consequences of decisions made far beyond their reach or knowledge, while those making those decisions continue to justify their actions. Even the people who help keep this world running may not be as important or as safe as they imagine.

Stockwell brings this idea into focus. He recognises corruption in others and willingly takes part in it himself, yet he cannot see that he might also suffer its consequences. Ultimately, he thinks his position will keep him safe. He is intelligent enough to understand the game, but not insightful enough to grasp the limits of his place within it. This blindness gives the novel a strong sense of irony.

The satirical approach gives Fernando room to criticise political hypocrisy without turning the novel into a direct political argument. By using fictional countries and exaggerated names, he creates some distance from specific governments and events while still making the larger targets of the book clear. The humour does not take away from the seriousness of the subject; instead, it makes the cruelty and self-interest beneath the political performance stand out more sharply.

Near the end, Fernando echoes Macbeth with the line, “There is judgment here.” It captures the question running through the novel: can anyone participate in corruption and remain untouched by it? Beneath this satire is a dark story about power and the danger of believing that someone else will always pay the price.

I came away feeling that Outpost of Empire is a valuable and thought-provoking book, particularly in today’s political and social climate. It has a distinctive voice, and the questions it raises about power, responsibility and foreign interference remain relevant far beyond the fictional borders of Lackadasia.
About the Author

Shavindra Fernando has worked as a reporter. He read English & Classics at the University of Peradeniya in Sri Lanka, and took International Relations & Ethnic Politics as a Reuter Fellow at the University of Oxford in England. The Vague Poetess (1999)was his first novel.

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