Features
A simple lesson in arithmetic on electricity sector
By Eng. Parakrama Jayasinghe
parajayasinghe@gmail.com
In February this year, I published an article titled, Sri Lankan Electricity Sector – The Headless Chicken (https://www.ft.lk/columns/Sri-Lankan-electricity-sector-The-headless-chicken/4-730564), and that was before Sri Lanka faced an unprecedented shortage of transport fuels, and long queues. The damage caused to the economy by diverting some 75% of the oil supplies to electricity generation is yet to be properly assessed. Therefore any observer including the smallest electricity consumer would agree with the above assessment, considering the sorry state that the once proud electricity sector has deteriorated to. This is by no means a sudden problem, but a repetition year after year even giving a new interpretation to what is meant by “Emergency Power”.
That Sri Lanka is subject to a dry spell every year from January to April does not require elaboration. However, the Ceylon Electricity Board (CEB) has chosen to ignore this reality and continues to do nothing to anticipate or mitigate the recurring problem year after year. Its solution has been to deploy costly emergency power generation, using imported oil. ignoring the very high cost of generation and as happened this year and the grave impact on the transport sector.
With the good fortune of more than usual rainfall, lasting beyond the southwest monsoon, the use of oil for power generation has been minimal over the past several months and the power cuts, too, have been limited to two hours per day. But, how long will that euphoria of ample hydro power last? Is there any possibility at all of the January to April dry spell not materialising?
The abyss facing us in a few short months
Maybe, Sri Lankans have already forgotten the miles long fuel queues. This story is set to be repeated in early 2023, too, with the Chairman of CEB, having already approved 100 MW of emergency power. In the meanwhile, the new long-term electricity generation plan (LTEGP 2023-2042 ) recently discussed at a public stake holder meeting proposes addition of 320 MW of emergency power now given a new name of “Short Term Supplementary Power”, nevertheless operated using expensive oil imported using the meager dollars resources, borrowed from increasingly reluctant lenders.
Sri Lanka paid a hefty sum in demurrages for the shipment of crude oil recently, which was lying in the out harbour for 56 days due to lack of dollars to pay for it. Where are the dollars coming from to pay for the proposed emergency power once the rains cease? The grave question of adequate supplies of coal to keep Norochcholai operational is hanging above us which will make the situation unbearable.These are the circumstances which prompted the tittle of this article.
The numbers game
The CEB is fond of pinning the blame on the government for the continual losses they make year after year, claiming that its income is based on tariffs determined by others, and they are inadequate to cover the costs. This is only part of the story. The average income to the CEB thereby was about Rs 16.50 per unit whereas the average cost of generation continued to increase and was of the order of Rs 23.00 per unit before Covid-19 and the subsequent economic meltdown. As such the CEB losses kept mounting, as shown in Tables 1 and 2.
The annual losses per unit borne by the consumers
The Accumulated loss over this 10 year period is Rs. 484 Billion, with the rare instance of marginal profit in the year 2015.All of these losses were covered by the Treasury or are accumulated as bad debts in the two state banks and the CPC. This in other words means that the consumers at all levels have in reality paid an additional amount for every unit consumed.
However, why didn’t the CEB, or the Ministry of Power and Energy, or even the Treasury ask why the cost of generation cannot be lowered?So, my first lesson in Arithmetic is this; if ‘A’ is the cost of generation and ‘B’ the income, and if A >> B resulting in a negative value for C being the loss, and if A cannot be increased at will, why not lower B?
The CEB’s answer would be to say that its proposals for adding more coal power which in their books is the cheapest source of electricity was not permitted. The fact that coal is to be imported with dollars and the rupee continued to be depreciated and we have no control on the price of coal, does not enter into their reasoning. This is to be expected as their long term generation plans are based on the assumption that the price of coal does not change and the rupee does not depreciate. With that kind of mindset it is futile to continue this discussion with the CEB. Obviously they are also blind to the vast strides made the world over, where by many cheaper options for power generation have now been commercialized. Is this driven by pure ignorance, or willful misinterpretation of the realities of the sector or just lack of competence of the CEB engineers making decisions, are the unanswered questions, but with the net result of the present calamity faced by the nation.

The role of the Ministry of Power and Energy and the Treasury
But what about their superiors in the Ministry of Power and the custodians of the public purse in the Treasury? Do they, too, lack the simple knowledge in evaluating this equation and asking the obvious questions? In fact, I would lay the greater blame on the Ministry and the Treasury, for permitting the CEB to perpetrate this deception year after year, with total disregard for the interest of the country and its people. This blame is not limited to the present admiration, but must be laid at the feet of all previous regimes who also turned a blind eye on this problem for whatever reason.
The net result of this collective lack of accountability and blatant violation of responsibilities has been the current disaster and the even greater disaster waiting to unfold shortly. The disaster that would occur in early 2023, as the price of coal has sky rocketed and the best price quoted in the recent tender was $ 325 per ton. As such the line on coal has now got to be removed from the category of low cost generation in the CEB projection. (See Tables 03 and 04)
The Relative Costs prevailing prior to 2020 shown above clearly shows that even then the cheapest option was RE. This is the historical data before Sri Lanka faced the current crisis. However, it is interesting to see below the analysis of actual cost of coal power issued by the PUCSL in 2020. The myth of cheap electricity has been clearly debunked. Matters have worsened since then. The estimates revealed at the recent TV programme are shown below. The recent news items in Economy Next (22nd Nov 2022) tells the true story
” CEB loses Rs 108 bn up to August 22″
(See Table 05) With both escalated purchase prices of oil and coal the true cost of coal power would now reach over Rs 65 /kWh and that of oil over Rs 120/kWh, the prognosis for the next year is indeed alarming. Of the many NCRE options, which averaged only Rs 14.81 , well below the average income of the CEB, the true cause of this alarming loss is clear from the above chart.
It is time for the next lesson.
It is quite on the cards that the CEB loss will exceed Rs. 150 Billion for the year 2022. Thus based on the expected generation less than 15,000 GWhThe loss per kWh = 150,000,000,000/ 15,000,000,000 = Rs 10.00
This is not included in the monthly electricity bill even after the increased consumer tariff.So who bears this cost? You guessed it. The consumers including those consuming a mere 30 units a month and up to those consuming 3000 units a month in equal measure.

What awaits us round the corner?
In this light it was a breath of fresh air to note that Sri Lanka managed even for a few days with very little oil based generation in the past months, courtesy of the weather gods. However, this euphoria will be short lived and the rains are already dwindling. The damage is worsened by the fact that the cost of generation using oil and coal has reached such levels , so that any right minded admiration would shut down such plants immediately and seek whatever sustainable means of bridging the gap. (See Table 06)
Estimated generation cost for year 2023
These numbers are generally in line with those presented in the TV programme where the cost was predicted as Rs 900 Billion.So I dare not perform the next calculation of the loss per kWh which the consumers will have to bear albeit indirectly. That is unless something rational is done without any further delay.
The options available
Fortunately for Sri Lanka we have ample means of doing so, which does not result in continuous drain of Dollars and has the benefit of many other economic advantages. More details of these options have been submitted to the officials who hopefully would advise their political masters of the lack of any other alternative. This is where the third lesson in arithmetic becomes important. It was revealed that based on the current projections the total cost for the CEB in year 2023 is estimated as Rs 900 Billion. They cannot hope to get even 50% of that even with the recent 75% increase in consumer tariff resulting in a projected loss of over Rs. 450 Billion.
Who will bear this cost? What will that do to our balance of payments and the parity rate if it is also to be funded by the treasury? We will be entering a positive feed back loop in financial terms, the result of which the CEB engineers talking about stability of systems should understand.But what are those who are expected to mange the energy sector and more importantly the treasury which has blindly covered all the massive losses incurred by the CEB in past will at least now take some decisive actions.
Having wasted many years by obstructing the development of the Renewable Energy Sector, the options for any short term interventions are now limited to the Roof Top Solar systems. It is on record that with the help of the Surya Bala Sangraamaya which provided some degree of safety against those hellbent on disrupting it, some 650 MW of roof top solar has been now grid connected. Even now adding a further 100 MW at least in the next six months is technically possible if the authorities can do another simple sum in Arithmetic. (See Table 07)
It is seen that the average cost of generation would now be around Rs 62.00 per unit, if the present price of coal and oil stays and the rupee does not deteriorate any further. Also considering that what is even more important to consider is the availability of FOREX for the import of coal and oil, the decision on the tariff payable for the Roof Top solar, being the only short term solution should be against the cost of generation using coal and oil.
In this regard the industry experts have made detailed submissions that, under prevailing financial and economic considering the viable tariff to attract any investor to this sector would be Rs 50.00 – Rs 60.00 per unit based on size of installation. Naturally this could come down as hopefully the Sri Lankan economy improves in the coming years. But can we afford to wait till then. The alternative is to use emergency power costing more than double. So the simple question to be asked is , which number is higher?
Cost of Solar RT of Rs 50.00 per kWh or Cost of Coal of Rs 65.00 per kWh, (If we manage to buy some coal, which too is in doubt), and Cost of Solar RT of Rs 50.00 per kWh or Cost of Oil of Rs 120.00 per kWh Isn’t there any one at the CEB, PUCSL, or the Ministry of Power or The Ministry of Finance who can do these simple sums?
Unless there is some sanity even at this late hour to realize that the CEB must secure it energy by focusing on the facilitation of the indigenous, renewable sources of energy, which does not depend on imported fuels of any kind, Sri Lanka is rushing towards a disaster on unimaginable proportions in a few short months. Don’t be surprised if a further consumer tariff increase is round the corner and worse still the possible resumption of the petrol and diesel queues before long.
Features
The Ramadan War
A Strategic Assessment of a Conflict Still Unresolved
The Unites States of America and its ally, Israel attacked Iran on 28 February, or the 10th day of the month of Ramadan. More than a month of intense fighting has passed since, and the Ramadan War has settled into a grinding, attritional struggle that defies early declarations of victory. Despite sustained U.S. and Israeli air and naval bombardment, Iran remains standing, and continues to strike back with a level of resilience that has surprised many observers. The conflict has evolved into a contest of endurance, adaptation, and strategic innovation, with each side attempting to impose costs the other cannot bear.
Iran’s response to the overwhelming airpower of its adversaries has been both simple and devastatingly effective: saturate enemy defences with swarms of inexpensive drones and older ballistic missiles, forcing them to expend costly interceptors and reveal radar positions, and then follow up with salvos of its most advanced precisionguided missiles. This layered approach has inflicted severe physical damage on Israel and has shaken its national morale. The country has endured repeated missile barrages from Iran and rocket fire from Hezbollah, straining its airdefence network and pushing its civilian population to the limits of endurance.
The United States, meanwhile, has been forced to evacuate or reduce operations at several bases in the Gulf region due to persistent Iranian drone and missile attacks. For both the U.S. and Israel, the war has become a test of strategic credibility. For Iran, by contrast, victory is defined not by territorial gains or decisive battlefield outcomes, but by survival, and by continuing to impose costs on its adversaries.
The central strategic objective for the U.S. has now crystallised: reopening the Strait of Hormuz to secure global energy flows. Ironically, the Strait was open before the war began; it is the conflict itself that has rendered it effectively closed. Air and naval power alone cannot achieve this objective. The geography of the Strait, combined with Iran’s layered defences, means that any lasting solution will require ground forces, a reality that carries enormous risks.
U.S. Strategic Options
The United States faces five broad operational options, each with significant drawbacks.
1. Seizing Kharg Island
Kharg Island handles roughly 90% of Iran’s oil exports, making it an attractive target. However, it lies only a short distance from the Iranian mainland, where entrenched Iranian forces maintain dense networks of missile batteries, drones, artillery, and coastal defences. Any attempt to seize Kharg would require first neutralising or capturing the adjacent coastline, a costly amphibious and ground operation.
Even if successful, this would not reopen the Strait of Hormuz. It would merely deprive Iran of export capacity, which is not the primary U.S. objective. At least ostensibly not; there are those who argue that the U.S. simply wants to take over Iran’s petroleum (see below).
2. Forcing the Strait of Hormuz by Naval Power
Sending U.S. naval forces directly through the Strait is theoretically possible but operationally hazardous. Iran has mined all but a narrow channel hugging its own shoreline. That channel is covered by overlapping fields of antiship missiles, drones, artillery, and coastal radar. Clearing the mines would require prolonged operations under fire. Attempting to push through without clearing them would risk catastrophic losses.
3. Capturing Qeshm, Hengam, Larak, and Hormuz Islands
These islands dominate the Iranian side of the Strait and host radar, missile, and drone installations. Capturing them would degrade Iran’s ability to close the Strait, but the islands are heavily fortified, and the surrounding waters are mined. Amphibious assaults against defended islands are among the most difficult military operations. Even success would not guarantee the Strait’s longterm security unless the mainland launch sites were also neutralised.
4. Invading Southern Iraq and Crossing into Khuzestan
This option would involve U.S. forces advancing through southern Iraq, crossing the Shatt alArab waterway, and pushing into Iran’s Khuzestan province — home to most of Iran’s oilfields. The terrain is difficult: marshes, waterways, and narrow approaches. Iranian forces occupy the high ground overlooking the plains.
While this route would allow Saudi armoured forces to participate, it would also expose U.S. and allied logistics to attacks by Iraqi Shia militias, who have already demonstrated their willingness to target U.S. assets. The political and operational risks are immense.
5. Capturing Chabahar and Advancing Along the Coast
The most strategically promising — though still costly — option is seizing the port of Chabahar in southeastern Iran and advancing roughly 660 kilometres along the coast toward Bandar Abbas. This approach offers several advantages:
· Distance from Iran’s core population centres complicates Iranian logistics.
· Chabahar’s deepwater port (16m draught)
would provide a valuable logistics hub.
· U.S. carriers could remain at safer standoff distances
, supporting operations without entering the Strait.
· The coastal route allows naval gunfire and missile support
to assist advancing ground forces.
· Local Baluchi insurgents
could provide intelligence and limited support.
· Capturing Bandar Abbas would
outflank Iran’s island defences and effectively reopen the Strait.
This option is likely to form the backbone of any U.S. ground campaign, potentially supplemented by diversionary attacks by regional partners to stretch Iranian defences.
The Limits of U.S. Superiority
The United States retains overwhelming superiority in naval power and manned airpower. But whether this advantage translates into dominance in unmanned systems or ground combat is far from certain.
The 2003 invasion of Iraq is often cited as a model of U.S. military prowess, but the comparison is misleading. Iraq in 2003 had been crippled by a decade of sanctions. Its forces lacked modern mines, antitank missiles, and effective air defences. Tank crews had little training; some could not hit targets at pointblank range. RPG teams were similarly unprepared. The U.S. enjoyed numerical superiority in the theatre and total control of the air, allowing it to isolate Iraqi units and prevent reinforcement.
Even under those favourable conditions, Iraqi forces managed to delay the U.S. advance. At one point, forward U.S. units nearly ran out of ammunition and supplies, forcing the diversion of forces intended for the assault on Baghdad to secure the lines of communication.
Iran is not Iraq in 2003. Its armed forces and industrial base have adapted to nearly half a century of sanctions. It produces its own drones, missiles, artillery, and armoured vehicles. It has built extensive underground facilities, hardened command posts, and redundant communication networks.
Moreover, the battlefield itself has changed. The RussoUkrainian war demonstrated that deep armoured penetrations – once the hallmark of U.S. doctrine – are now extremely vulnerable to drones, loitering munitions, and precision artillery. The result has been a return to attritional warfare reminiscent of the First World War, with front lines stabilising into trench networks.
Yet, as in the First World War, stalemate has been broken not by massed assaults but by small, highly trained teams infiltrating thinly held lines, identifying targets, and guiding drones and artillery onto enemy positions deep in the rear. Iran has studied these lessons closely.
Mosaic Defence and Transformational Warfare
Iran’s military doctrine has evolved significantly over the past two decades. Its “mosaic defence” decentralises command and control, ensuring that even if senior leadership is targeted, local units can continue operating autonomously. This structure proved resilient during the initial waves of U.S. and Israeli strikes.
Iran has also absorbed lessons from U.S. “shock and awe” operations. The botched U.S. invasion of Grenada in 1983 exposed weaknesses in joint operations, prompting the development of “effectsbased operations,” “rapid dominance” and the broader concept of “transformational warfare.” These doctrines (better known colloquially as “Shock and Awe”), influenced by Liddell Hart and Sun Tzu, emphasised simultaneous strikes on strategic targets to paralyse the enemy’s decisionmaking.
While the U.S. struggled to apply these concepts effectively in Iraq and Iran, Tehran has adapted them for asymmetric use. Its drone and missile campaigns have targeted not only military assets but also economic infrastructure and psychological resilience. Israel’s economy and morale have been severely tested, and the United States finds itself entangled in a conflict that offers no easy exit.
Iran has also pursued a broader strategic objective: undermining the petrodollar system that underpins U.S. financial dominance. By disrupting energy flows and encouraging alternative trading mechanisms, Iran seeks to weaken the economic foundations of U.S. power.
Will the USA Achieve Its War Aims?
The United States’ core objective appears to be securing control over global energy flows by reopening the Strait of Hormuz and limiting China’s access to Middle Eastern oil before it can transition to alternative energy sources. Whether this objective is achievable remains uncertain.
A ground campaign would be long, costly, and politically fraught. Iran’s defences are deep, layered, and adaptive. Its drone and missile capabilities have already demonstrated their ability to impose significant costs on technologically superior adversaries. Regional allies are cautious, and global support for a prolonged conflict is limited.
The United States retains overwhelming military power, but power alone does not guarantee strategic success. Iran’s strategy is simple: survive, adapt, and continue imposing costs. In asymmetric conflicts, survival itself can constitute victory.
In Frank Herbert’s Dune, the protagonist, Paul Muad’dib says “he who can destroy a thing, controls a thing.” This is the essence of Iranian strategy – they have a stranglehold on petroleum supply, and can destroy the world economy. Trump has had to loosen sanctions on both Iran’s and Russia’s oil, simply to prevent economic collapse.
The Ramadan War has already reshaped regional dynamics. Whether it reshapes global power structures will depend on how the next phase unfolds, and whether the United States is willing to pay the price required to achieve its aims.
by Vinod Moonesinghe
Features
Nayanandaya:A literary autopsy of Sri Lanka’s Middle Class
“Nayanandaya,” meaning the enchantment of indebtedness, is Surath de Mel’s latest novel. True to his reputation as a maximalist writer, de Mel traverses the labyrinth of middle-class struggles; poverty, unemployment, the quest for education, through a father’s fragile dreams. The novel unfolds around Mahela, his son, his friendships, and the fragile relationships that keep him tethered to life.
“Happiness is not a destination; it is a journey. There are no shortcuts to it. At some point, the path you thought was right will be wrong. You have to make sacrifices for it.”
These words, uttered by the protagonist Mahela to his ten-year-old son, is the silent mantra of every middle-class parent. A common urban middle-class father’s yearning for his child to climb the ladder he himself could not ascend.
A Socio-Political Mirror
Sri Lanka’s middle class remains trapped in paradox. They are educated but underemployed, salaried but indebted, socially respected yet politically invisible. Structural inequalities, economic volatility and populist politics inclusively contribute to keep them “forever middle”.
Through protagonist Mahela, who is sometimes a graphic designer, sometimes a vendor and always a failure Surath de Mel sketches the deficiencies of an education system that does not nurture skills of the students. Sri Lanka boasts about high literacy rates, yet the economy cannot absorb the thousands of graduates produced into meaningful work. Underemployment becomes the inheritance of the middle class. With political connections often the stories can be transformed. De Mel pens it in dark humour to expose these truths:
“Some notorious writer once sneered in a newspaper, ‘Give your ass to the minister, and you’ll earn the right to keep it on a bigger chair.’ Countless people waiting in ministers’ offices, pressing
their backsides to seats, carrying the weight of their own lives.”
Childhood Trauma and Its Echoes
Surath de Mel frequently weaves psychoanalysis into his fiction. In Nayanandaya, he captures the lingering shadows of childhood trauma. Mahela, scarred by a loveless and fractured youth, suffers phobic anxiety and depression, apparently with a personality disorder as an adult. His confession at the psychologist reveals it out:
“Childhood? I didn’t have one. I was fifteen when I was born.”
Here, Mahela marks his true birth not at infancy, but at the death of his parents. This statement itself reveals the childhood trauma the protagonist had gone through and the reader can attribute his subsequent psychological struggles as the cause of it.
From a Lacanian perspective, trauma is not just something that happens to a child; it is a deep break in how the child understands the world, themselves, and others. Some experiences are too painful to be put into words. Lacan calls this the Real — what cannot be fully spoken or explained. This pain does not disappear but returns later in life as anxiety, fear, or obsessive compulsive disorder.
This trauma disturbs the child’s sense of self and their place in society. When language fails to make sense of loss, the mind creates fantasies to survive. These fantasies quietly shape adult desires, relationships, and choices.
In Nayanandaya, childhood trauma of the protagonist does not stay buried — it lives on, shaping the adulthood in unseen ways. In the narrative, Mahela’s struggles are not just personal failures but the result of a past that was never given words.
Tears of Fathers – Forgotten in Sri Lankan Literature
Sri Lankan literature has long been attentive to suffering — especially rural poverty, social injustice, and the silent endurance of women and single mothers. Countless novels, poems, and songs have given voice to maternal sacrifice, female resilience, and women’s oppression.
Yet, within this rich narratives, the quiet grief of the urban middle-class father remains mostly unseen. Rarely does fiction pause to examine the emotional lives of men who shoulder responsibility without language for their pain. These masculine tears are private, swallowed by routinely and masked by humour or silence. Definitely never granted literary space.
In Nayanandaya, Surath de Mel breaks this silence. Through Mahela, he lends voice to these overlooked men — fathers whose love is expressed through sacrifice rather than speech. However, de Mel does not romanticise the tears. Rather he humanises them. He allows their vulnerabilities, anxieties, and quiet despair to surface with honesty and compassion. In doing so, Nayanandaya fills a striking gap in Sri Lankan literature, reminding us that fathers, too, carry invisible wounds.
Literary value
With Nayanandaya, Surath de Mel reaches a new pinnacle in his literary craft. His language is dense yet lyrical, enriched with similes, metaphors, irony, and a full range of literary tools deployed with confidence and control.
One of the novel’s most touching narrative choices is the personification of Mahela’s son’s soft toy, Wonie. Through personified Wonie, de Mel captures the two most touching incidents in the entire novel . This simply reveals the author’s artistic maturity, transforming a simple object into a powerful emotional conduit that anchors the novel’s tenderness amidst its despair.
At a deeper symbolic level, Mahela himself can be read as more than an individual character, but a metaphor for Sri Lanka — a nation struggling under economic hardship, clinging to impractical dreams, witnessing the migration of its people, and drifting towards a slow, painful exhaustion. His personal failures could mirror the broader decay of social and economic structures. This symbolic reading lends Nayanandaya a haunting national resonance.
Today, many write and many publish, but only a few transform language into literature that lingers in the reader’s mind long after the final page. Surath de Mel belongs to that rare few. In a literary landscape crowded with voices, he remains devoted to art rather than popularity or trend. As a scholar of Sinhala language and literature, de Mel writes with intellectual depth, dark humour, and deep human empathy.
In conclusion, Nayanandaya is not merely a story; it is social commentary, psychoanalytic reflection, and tragic poetry woven into richly textured prose. With this novel — a masterful interlacing of love, debt, and fragile dreams — Surath de Mel engraves a distinctly Dostoevskian signature into Sinhala literature.
Reviewed by Dr. Charuni Kohombange
Features
Domestic Energy Saving
Around 40 percent of the annual energy we use is consumed in domestic activities. Energy is costly, and supply is not unlimited. Unfortunately, we realize the importance of energy – saving only during the time of a crisis.
If you adopt readily affordable energy-saving strategies, you will cut down your living expenditure substantially, relieving the energy burden of the nation. Here are some tips.
Cooking:
Cooking consumes a good portion of domestic energy demand and common practices, and negligence leads to 30 – 40 percent wastage. A simple experiment revealed that the energy expenditure in boiling an egg with the usual unnecessary excess water in an open pan is nearly 50 percent higher than boiling in a closed lid pan with the minimal amount of water. In an open pan, a large quantity of heat is lost via convection currents and expulsion of water vapor, carrying excessive amounts of heat energy (latent heat of vaporisation). Still, most of us boil potatoes for prolonged intervals of time in open receptacles, failing to realise that it is faster and more efficient to boil potatoes or any other food material in a closed pan. About 30 – 40 percent of domestic cooking energy requirements can be cut down by cooking in closed-lid pans. Furthermore, food cooked in closed pans is healthier because of less mixing with air that causes food oxidation. Fat oxidation generates toxic substances. In a closed- lid utensil (not tightly closed), food is covered with a blanket of water vapor at a positive pressure, preventing entry of air and therefore food oxidation.
Overcooking is another bad habit that not only wastes energy but also degrades the nutritional value of food.
Electric kettle:
For making morning or evening tea or preparing tea to serve a visitor. Do not pour an unnecessarily large quantity of water into the electric kettle. Note that the energy needed to make 10 cups of tea is ten times that of one cup.
Electric Ovens:
Avoid the use of electric ovens as far as possible. Remember that foods cooked at higher temperatures are generally unhealthy, and even carcinogens are formed when food is fried at higher temperatures in an oven. If ever you need to bake something in an oven, limit the number of times you open the door. Use smaller ovens adequate for the purpose and not larger ones just for fashion.
Refrigerators:
Refrigerators consume lots of energy. Do not use over-capacity refrigerators just for fashion. Every time you open the fridge, more electricity is used to reset the cooling temperature. Plan your access to the appliance accordingly. Check whether the doors are properly secured and there are no leakages. Keep the fridge in a cooler location, not hit by direct sunlight and away from warmer places in the kitchen. Remember that turning off the fridge frequently will not save energy, instead it draws more energy.
Use of gas burners:
Do not use oversized utensils. Keep the lid closed as far as possible to prevent the escape of heat. Remember that excessive amounts of heat energy are carried away by a large surface-area conducting utensil. Do not open the gas vent to allow the flame to flash outside the vessel. A flame not impinging on the pan would not heat it, and gas is wasted. Ensure that the flame is blue. Frequently check whether gas vents are clogged with rust and carbon. Frequently, cooking material in the pan drops into the gas vents, and salt there corrodes the gas vents. Cleaning and washing would be necessary. Do not prolong cooking, taking time to prepare ingredients and adding them to the pan intermittently. Add ingredients at once and before switching the burner. If the preparation of a dish is prolonged to slow the cooking, use earthenware pots rather than metallic ones. An earthenware pot, being thermally less conducting retain heat.
Firewood for cooking:
Do not attempt to eliminate the use of firewood in cooking. If you are living in a village area, the exclusive use of LPG gas is an unnecessary expenditure. Large smoke-free, efficient oven designs are now available. If you are compelled to use gas, keep the option of firewood ovens, especially for prolonged cooking. Admittedly, there are locations, especially in cities, where the use of firewood is unsuited.
Hot water showers:
Before installing hot water showers, reconsider whether they are really necessary in a hot tropical climate. Go for solar water heaters, although the installation cost is high. Instant water heaters consume much less electricity compared to geysers with water tanks. Now, cheap and safe instant water heaters are available.
Lighting:
Arrange and design your residence to optimise daytime illumination until late evening. If you are constructing a new house, take this issue into account. Use LED lamps, which provide the same illumination for 85 percent less energy. In study rooms and areas that require prolonged illumination, paint the walls white. Angle – poised LED lamps with very low voltage are available. Use them for reading and studies. Routinely clean the surfaces of all lamps. Dust deposition cuts off light.
Air conditioning and ventilation:
Air conditioning consumes prohibitively large quantities of electrical energy. You can avoid air conditioning by optimising ventilation. The principle is to have air entry points (windows) in the house near the ground level and exit points (vents or windows) near the roof. Ground level is cooler, and the region near the roof is warmer. Thus, a cool air current enters the house near the ground level and hot air is drawn by the vents near the roof. The region near the ground can be rendered cooler by planting trees. Architectural designs are available to optimise this effect. You can sense the direction of air motion by holding a thin strip of paper near the windows at the ground and near the roof level. In addition to ceiling fan, install exhaust fans in the upper points of the house to remove hot air and draw cooler air through windows near the ground. Reduce the amount of sunlight hitting the roof by shading with trees. There are techniques for increasing the reflectance of the roof with paints and other designs.
Transportation:
A good portion of your budget is drained by transportation. Irrespective of who you are, use public transport if convenient and available. As much as possible, use the telephone and email to get your things done. If the officers do not comply for no valid reason, complain. Plan your trips to the town to do several things at the same time. Whenever possible, plan to share transport. Buy energy – efficient small vehicles. Routinely examine your vehicle for energy efficiency, i.e. correct tire pressure etc.
Charge electric vehicles off peak hours. Slow charging reduces heat generation in the circuit, reducing energy loss.
Energy is costly and limited in supply. Everything you do consumes energy. Be energy conscious in all your deeds. That attitude will reduce your expenditure, lessen the environmental degradation and financial burden of the nation in importing fuel.
Educating the general public is the most effective way of implementing energy-saving strategies.
By Prof. Kirthi Tennakone
(kenna@yahoo.co.uk)
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