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Power Blackout Committee Report:Recommendations run counter to President’s policy

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6 years ago

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By Dr. Janaka Ratnasiri

The Minister of Power, four days after assuming duties, had to face an island-wide power blackout which commenced around 12.30 pm on the 17th August and lasted up to 7-8 hours. The following day, he appointed a committee, comprising Ministry officials and power experts, to investigate the matter and submit a report within a week.

 

COMMITTEE APPOINTED
BY THE MINISTER

The Committee comprised two administrative officers, including an Additional Secretary to the Ministry of Power, serving as the Chairman, a Retired Professor of Mechanical Engineering, an Engineer who is a Chairman of a Corporation, two Senior Lecturers in Electrical Engineering, one senior official from the Ceylon Electricity Board (CEB) and one senior official from the Ministry of Power responsible for Renewable Energy Development. The Director General of the Public Utilities Commission of Sri Lanka (PUCSL) was also nominated but did not serve as there was a separate investigation being undertaken by the PUCSL. With two members from the Ministry, including one in the Chair, and another from CEB, the Committee cannot be considered as independent.

The Committee had met on the 18th and submitted an interim Report, to the Minister, on the 24th, which was also tabled at the Cabinet meeting held on the 26th. The Report was also made available at a press briefing held by the Ministry and the contents herein are taken from this Report. According to the Report, the Committee had visited the Kerawalapitiya Grid Substation (GSS) where the initial fault occurred claimed to be due to a human error, Lakvijaya Power Station (LVPS) at Norochcholai, Protection Branch of the CEB and the System Control Center of the CEB at Pelawatta, and had interviewed the staff on duty at these stations with a view to elicit information on the following.

The key reasons for the nationwide power interruption on the 17th August 2020 at 12:30 pm onwards.

Whether the CEB has taken precautionary actions and measures to prevent recurrence of interruptions that had been encountered in the recent past for which recommendations have been extended by similar committees that could have influenced the present incident.

Recommendations for remedial measures that need to be taken by the CEB to prevent recurrence of the same and similar incident.

Whether the CEB has taken the best professional practicing measures in handling the incident and the conditions that led to it employing proper planning, operational and administrative elements and had any constraint encountered CEB’s intended professional actions.

Whether the CEB had encountered similar incidents in the past and how the situation had been then handled.

Whether the CEB could have handled the situation judiciously to minimize the implication and how this could be avoided in the future.

 

PRELIMINARY FINDINGS OF THE
REPORT

The Committee, in its Interim Report ,has given a set of preliminary findings, among which are the following:

Routine maintenance work on the 220 kV isolators of the Bus Coupler Bay had been carried out on the day of the incident by the Electrical Superintendent-In-Charge at Kerawalapitiya GSS, who apparently has been attending routine maintenance work at the Kerawalapitiya GSS for the past five years. The power in the Bus Bar 01 had been turned OFF for the maintenance, while the power of the Bus Bar 02 was ON. The Earth Switch 01 at Bus Bar 01 side had been OFF while the Earth Switch 02 at Bus Bar 02 side had been ON as shown in Fig. 1.2(a) at the time of incident.

Under normal operations the Earth Switch and the relevant isolator are interlocked, so that the isolator cannot be turned ON while the Earth Switch is turned ON. However, during maintenance, this interlock had been bypassed, so that isolator can be turned ON even with the Earth Switch is turned ON. At the end of the maintenance work of the 220 kV Bus Coupler Bay, while the interlock is bypassed, the Isolator on the Bus Bar 02 side had been turned ON as shown in Fig. 1.2(b), creating a 3 Phase to Ground fault.

The key reason for the nationwide power interruption on the 17th August 2020 is due to the 3 Phase to Ground busbar fault due to incorrect operation of the Bus Bar 2 Isolator of the Bus Coupler Bay by the Electrical Superintendent -in-Charge at the Kerawalapitiya Grid Substation busbar at 12:30 Hrs.

Kerawalapitiya Grid substation tripping was due to not following the correct maintenance procedure by the relevant officials including the Electrical Superintendent. The Committee also observed that there was no written maintenance protocol for this maintenance job in-line with the current best practiced maintenance protocols.

The Committee is of the view that due to the Kerawalapitiya Grid substation tripping, the system frequency has increased beyond the current setting of the rate of frequency tripping relay of the Lak Vijaya Power Station (LVPS). As a result, the generator-transformer circuits breakers of all three units of the LVPS which made LVPS unavailable to the grid, subsequently the system failed in cascade.

CEB’s recent failure to avoid a country-wide blackout and the longer duration taken to restore power to Colombo City in particular, indicates significant lapses in implementation of critical measures outlined in the previous Expert Committee Reports.

 

AUTHOR’S COMMENTS ON THIS
PROCEDURE

The cardinal mistake done by the Electrical Superintendent (ES) during the maintenance work was that he had disabled the interlocking system which prevents switching on the 220 kV line to the GSS while it is earthed, which is a protective mechanism incorporated into the system to prevent blunders by maintenance staff as happened. It is certainly not an “Ath Wereddak” as claimed by a senior official of the CEB. As a result, the ES was able to connect the high voltage line to the substation already earthed which created the havoc.

The question which arises is what was the necessity to disable the interlocking system to carry out the routine maintenance? The Report does not seem to have queried the ES on this. If the ES has done such an irresponsible act, deliberately, in any other organization, he would have been interdicted forthwith or at least sent on compulsory leave. But, the CEB Management thought otherwise, possibly for fear of trade union reaction.

The tripping of the 220 kV line at Kerawalapitiya apparently has caused a sudden increase in the system frequency at LVPS, resulting in the three generating units there to trip. A sudden increase in the frequency means that the speed of the generator rotors has increased suddenly. Isn’t there a mechanical device called a governor in the generator which helps in maintaining the rotor speed at a constant value? Is it a characteristic of a coal power plant to allow its rotor speed to vary suddenly in response to a disruption in the line? Was it that this governor did not function properly when this incident took place?

The CEB management should be faulted for not making available to the maintenance personnel proper maintenance manuals. It was alleged that even for the Norochcholai coal plant, the manufacturer never made available to CEB the operation manuals in English. That may be the reason for having Chinese technicians to attend to O&M functions even today. It seems that during the last 6-7 years since commissioning the plant, CEB personnel have not been able to learn the O&M functions from the

Chinese technicians. Though, the CEB staff at Norochcholai are unable to handle the O&M functions of the coal power plant by themselves, Sri Lankan personnel are managing three combined cycle power plants, two at Kelanitissa and one at Kerawalapitiya. This is one more reason why Sri Lanka should not build any more coal power plants.

 

RECOMMENDATIONS OF
THE REPORT

Among the recommendations made by the Committee are the following among others:

The committee strongly recommends a standard compliant, systematic, foolproof, safe procedures and maintenance protocols to be instated in the CEB during operation and maintenance (O&M). The implementation of these procedures will have to be continuously monitored and supervised by adequately qualified, professionally trained, knowledgeable, experienced and skilled personnel. The committee would like to propose a performance evaluating annual appraisal system which will help to improve the above attributes of the CEB staff.

The committee understands that there is no Operations & Maintenance related risk management mechanism in place. Therefore, it is recommended to establish a risk management mechanism in order to determine the proper mix of preventive measures, mitigation levels, shift or retention of risks and consequent level of robustness of Operations & Maintenance protocols that would indicate the positive impact on the overall system

The committee strongly recommends to implement the 2018-2037 CEB Long Term Generation Expansion Plan, as given in the plan, which clearly specifies the correct blend of technologies for the future requirements of the Sri Lankan power system to improve the system stability and reliability.

The committee recommends to review the existing protection strategy for frequency instability.

 

2018-2037 LONG-TERM GENERATION
EXPANSION PLAN

 

The first two recommendations are in order. One would expect that an organization like the CEB has already following proper standard procedures for O&M. But if they are lacking, priority needs to be given for the training of staff adequately. It has been alleged in the media that all foreign training programmes are given to engineering staff while the middle level technical staff who actually carry out the O&M work are given only local training. Perhaps, there is a case here and if it is true, it should be rectified.

Since the Committee has made a strong recommendation that the CEB’s 2018-2037 Long-Term Generation Plan be implemented, it is necessary to examine what this plan is. The CEB prepares biennially a long-term generation expansion (LTGE) plan outlining the least cost options of generation plants that need to be added to the system annually for the next 20 years to meet the forecasted demand. The latest plan is in respect of the period 2020 – 2039 but it is still in the draft form yet to be approved by the PUCSL as required by Sri Lanka Electricity Act No. 31 of 2013.

The CEB 2018-2037 LTGE Plan released in June 2018 provided for adding 2,700 MW of coal power capacity between 2023 and 2035 and 1,500 MW of natural gas capacity between 2019 and 2036, along with several gas turbines and diesel power plants as well as a large number of small renewable energy plants comprising mini-hydro, solar, wind and biomass systems, under Base Case scenario. However, the PUCSL did not approve this plan but recommended an alternative plan incorporating natural gas power plants in place of coal power plants included in the CEB Plan.

The CEB refused to accept this recommendation, particularly with objections raised by its Engineers’ Union (EU), and the dispute between the PUCSL and the CEB kept dragging for over a year, and the matter was finally referred to the President who gave a directive to the PUCSL to approve the CEB Plan, fearing disruption to the power supply in the country after the CEB EU threatened to resort to industrial action if their demand for coal power plants is not acceded to. This is something not expected from a body of professionals and unheard in other countries.

Also, the LTGE Plan is highly flawed. It is supposed to determine which power technology will be the cheapest in 20 years hence based on current prices. With the cost of generation depending on plant capital cost and fuel prices both of which could vary widely within a span of 20 years, it is futile to make forecasts now as to which technology is the cheapest in 20 years hence and to adopt it. Although the CEB 2018-2037 Plan has recommended building 2,700 MW of coal power plants on grounds that coal power is the cheapest option, a report by World Bank Group study on Sri Lanka Energy Infrastructure Sector Assessment Programme (InfraSAP) released in February 2019, says in p. 18 that “coal ceases to be the least cost source of power generation, as cost of power from LNG and NCRE could potentially be lower than US cents 9 / kWh” which is the estimated coal power price.

It is therefore obvious that the 2018-2037 Plan is not a plan approved after considering engineering and economic aspects properly but approved on political grounds. Hence, the Committee’s strong recommendation to implement such a flawed plan is an attempt to take the power sector development in the country along a wrong path. It is not surprising that the Committee has made such a biased recommendation when two senior officials from the Ministry and one from the CEB are in the Committee. In any case, building more coal power plants is not a solution to a possible blackout in the future. This is the second attempt when the Ministry tried to get building of coal power plants inserted into a policy document on the sly. The first attempt was when the Cabinet took a decision on post-Covid activities to be undertaken urgently in view of the “emergency” situation in the country, building a 300 MW coal power plant at Norochcholai was inserted as one activity in the Cabinet decision.

It is also mentioned that the implementation of the CEB 2018-2037 Plan with more coal power plants is recommended to improve the system stability and reliability in the future. The Committee has not justified that the system stability and reliability would be better with coal power plants than with natural gas power plants for the Committee to make such a statement. However, it was shown in this instant that it was the instability of rotor speed of the coal power plants resulting in raising the frequency suddenly that caused the three coal power plants to trip. Hence having more coal power plants will not be of any help to maintain the stability of the system. On the contrary, it will make it worse.

Further, it is noted that with a coal power plant once shut down, it is necessary to wait several days until it cools down before it can be re-started. On the other hand, with a natural gas operated combined cycle power plant, there is no such delay and the plant can be energized within a few hours.

 

RECOMMENDATION VIOLATING THE
PRESIDENT’S POLICY

 

In the President’s policy document, “Vistas of prosperity and splendour”, he says “We also anticipate that hydro and renewable energy together would account for 80% of the overall energy mix by 2030”. The State Minister for Renewable Energy said during his assumption of duties that the Ministry’s target is to use renewable energy resources to generate at least 80% of the total generation of electricity by 2030. The Power Minister has also made a statement to that effect in the Parliament. However, it is not possible to achieve this target if the CEB 2028-2037 Plan is implemented.

The LTGE Plan has worked out the average generation from each plant type annually and the values obtained for 2030 are given in Table 1, extracted from the data given in Annexes 7.4 of 2018-2037 LTGE Plan. It is to be noted that it is not possible to forecast exact values for generation from each category in the future because it depends on many extraneous factors, such as rainfall, cloud cover, wind regime, fuel prices and demand which are not known accurately in advance. Annex 7.4 gives average values after considering several scenarios.

It is seen that according to the CEB’s LTGE Plan for 2018-37, generation from renewable sources could reach only 36% by 2030, which is far below the 80% target given in President’s VPS Policy Document, assuming what is intended by “total energy” appearing in this document is total electricity generation.

Therefore, the Committee’s strong recommendation that the CEB’s 2018-2037 Plan be implemented is a gross violation of the President’s Policy. It is surprising that a learned Committee including several officials in the Ministry, are not aware of the President’s policy. The Power Minster should call for explanations from the Committee Members why they overlooked the President’s Policy when they made their recommendation.


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Features

Ranking public services with AI — A roadmap to reviving institutions like SriLankan Airlines

Published

17 hours ago

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2026/03/13

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Efficacy measures an organisation’s capacity to achieve its mission and intended outcomes under planned or optimal conditions. It differs from efficiency, which focuses on achieving objectives with minimal resources, and effectiveness, which evaluates results in real-world conditions. Today, modern AI tools, using publicly available data, enable objective assessment of the efficacy of Sri Lanka’s government institutions.

Among key public bodies, the Supreme Court of Sri Lanka emerges as the most efficacious, outperforming the Department of Inland Revenue, Sri Lanka Customs, the Election Commission, and Parliament. In the financial and regulatory sector, the Central Bank of Sri Lanka (CBSL) ranks highest, ahead of the Securities and Exchange Commission, the Public Utilities Commission, the Telecommunications Regulatory Commission, the Insurance Regulatory Commission, and the Sri Lanka Standards Institution.

Among state-owned enterprises, the Sri Lanka Ports Authority (SLPA) leads in efficacy, followed by Bank of Ceylon and People’s Bank. Other institutions assessed included the State Pharmaceuticals Corporation, the National Water Supply and Drainage Board, the Ceylon Electricity Board, the Ceylon Petroleum Corporation, and the Sri Lanka Transport Board. At the lower end of the spectrum were Lanka Sathosa and Sri Lankan Airlines, highlighting a critical challenge for the national economy.

Sri Lankan Airlines, consistently ranked at the bottom, has long been a financial drain. Despite successive governments’ reform attempts, sustainable solutions remain elusive.

Globally, the most profitable airlines operate as highly integrated, technology-enabled ecosystems rather than as fragmented departments. Operations, finance, fleet management, route planning, engineering, marketing, and customer service are closely coordinated, sharing real-time data to maximise efficiency, safety, and profitability.

The challenge for Sri Lankan Airlines is structural. Its operations are fragmented, overly hierarchical, and poorly aligned. Simply replacing the CEO or senior leadership will not address these deep-seated weaknesses. What the airline needs is a cohesive, integrated organisational ecosystem that leverages technology for cross-functional planning and real-time decision-making.

The government must urgently consider restructuring Sri Lankan Airlines to encourage:

=Joint planning across operational divisions

=Data-driven, evidence-based decision-making

=Continuous cross-functional consultation

=Collaborative strategic decisions on route rationalisation, fleet renewal, partnerships, and cost management, rather than exclusive top-down mandates

Sustainable reform requires systemic change. Without modernised organisational structures, stronger accountability, and aligned incentives across divisions, financial recovery will remain out of reach. An integrated, performance-oriented model offers the most realistic path to operational efficiency and long-term viability.

Reforming loss-making institutions like Sri Lankan Airlines is not merely a matter of leadership change — it is a structural overhaul essential to ensuring these entities contribute productively to the national economy rather than remain perpetual burdens.

By Chula Goonasekera – Citizen Analyst

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Features

Why Pi Day?

Published

17 hours ago

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2026/03/13

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International Day of Mathematics falls tomorrow

The approximate value of Pi (π) is 3.14 in mathematics. Therefore, the day 14 March is celebrated as the Pi Day. In 2019, UNESCO proclaimed 14 March as the International Day of Mathematics.

Ancient Babylonians and Egyptians figured out that the circumference of a circle is slightly more than three times its diameter. But they could not come up with an exact value for this ratio although they knew that it is a constant. This constant was later named as π which is a letter in the Greek alphabet.

Archimedes

It was the Greek mathematician Archimedes (250 BC) who was able to find an upper bound and a lower bound for this constant. He drew a circle of diameter one unit and drew hexagons inside and outside the circle such that the sides of each hexagon touch the sides of the circle. In mathematics the circle passing through all vertices of a polygon is called a ‘circumcircle’ and the largest circle that fits inside a polygon tangent to all its sides is called an ‘incircle’. The total length of the smaller hexagon then becomes the lower bound of π and the length of the hexagon outside the circle is the upper bound. He realised that by increasing the number of sides of the polygon can make the bounds get closer to the value of Pi and increased the number of sides to 12,24,48 and 60. He argued that by increasing the number of sides will ultimately result in obtaining the original circle, thereby laying the foundation for the theory of limits. He ended up with the lower bound as 22/7 and the upper bound 223/71. He could not continue his research as his hometown Syracuse was invaded by Romans and was killed by one of the soldiers. His last words were ‘do not disturb my circles’, perhaps a reference to his continuing efforts to find the value of π to a greater accuracy.

Archimedes can be considered as the father of geometry. His contributions revolutionised geometry and his methods anticipated integral calculus. He invented the pulley and the hydraulic screw for drawing water from a well. He also discovered the law of hydrostatics. He formulated the law of levers which states that a smaller weight placed farther from a pivot can balance a much heavier weight closer to it. He famously said “Give me a lever long enough and a place to stand and I will move the earth”.

Mathematicians have found many expressions for π as a sum of infinite series that converge to its value. One such famous series is the Leibniz Series found in 1674 by the German mathematician Gottfried Leibniz, which is given below.

π = 4 ( 1 – 1/3 + 1/5 – 1/7 + 1/9 – ………….)

The Indian mathematical genius Ramanujan came up with a magnificent formula in 1910. The short form of the formula is as follows.

π = 9801/(1103 √8)

For practical applications an approximation is sufficient. Even NASA uses only the approximation 3.141592653589793 for its interplanetary navigation calculations.

It is not just an interesting and curious number. It is used for calculations in navigation, encryption, space exploration, video game development and even in medicine. As π is fundamental to spherical geometry, it is at the heart of positioning systems in GPS navigations. It also contributes significantly to cybersecurity. As it is an irrational number it is an excellent foundation for generating randomness required in encryption and securing communications. In the medical field, it helps to calculate blood flow rates and pressure differentials. In diagnostic tools such as CT scans and MRI, pi is an important component in mathematical algorithms and signal processing techniques.

This elegant, never-ending number demonstrates how mathematics transforms into practical applications that shape our world. The possibilities of what it can do are infinite as the number itself. It has become a symbol of beauty and complexity in mathematics. “It matters little who first arrives at an idea, rather what is significant is how far that idea can go.” said Sophie Germain.

Mathematics fans are intrigued by this irrational number and attempt to calculate it as far as they can. In March 2022, Emma Haruka Iwao of Japan calculated it to 100 trillion decimal places in Google Cloud. It had taken 157 days. The Guinness World Record for reciting the number from memory is held by Rajveer Meena of India for 70000 decimal places over 10 hours.

Happy Pi Day!

The author is a senior examiner of the International Baccalaureate in the UK and an educational consultant at the Overseas School of Colombo.

by R N A de Silva

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Features

Sheer rise of Realpolitik making the world see the brink

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2 days ago

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2026/03/12

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A combined US-Israel attack on Iran.(BBC)

The recent humanly costly torpedoing of an Iranian naval vessel in Sri Lanka’s Exclusive Economic Zone by a US submarine has raised a number of issues of great importance to international political discourse and law that call for elucidation. It is best that enlightened commentary is brought to bear in such discussions because at present misleading and uninformed speculation on questions arising from the incident are being aired by particularly jingoistic politicians of Sri Lanka’s South which could prove deleterious.

As matters stand, there seems to be no credible evidence that the Indian state was aware of the impending torpedoing of the Iranian vessel but these acerbic-tongued politicians of Sri Lanka’s South would have the local public believe that the tragedy was triggered with India’s connivance. Likewise, India is accused of ‘embroiling’ Sri Lanka in the incident on account of seemingly having prior knowledge of it and not warning Sri Lanka about the impending disaster.

It is plain that a process is once again afoot to raise anti-India hysteria in Sri Lanka. An obligation is cast on the Sri Lankan government to ensure that incendiary speculation of the above kind is defeated and India-Sri Lanka relations are prevented from being in any way harmed. Proactive measures are needed by the Sri Lankan government and well meaning quarters to ensure that public discourse in such matters have a factual and rational basis. ‘Knowledge gaps’ could prove hazardous.

Meanwhile, there could be no doubt that Sri Lanka’s sovereignty was violated by the US because the sinking of the Iranian vessel took place in Sri Lanka’s Exclusive Economic Zone. While there is no international decrying of the incident, and this is to be regretted, Sri Lanka’s helplessness and small player status would enable the US to ‘get away with it’.

Could anything be done by the international community to hold the US to account over the act of lawlessness in question? None is the answer at present. This is because in the current ‘Global Disorder’ major powers could commit the gravest international irregularities with impunity. As the threadbare cliché declares, ‘Might is Right’….. or so it seems.

Unfortunately, the UN could only merely verbally denounce any violations of International Law by the world’s foremost powers. It cannot use countervailing force against violators of the law, for example, on account of the divided nature of the UN Security Council, whose permanent members have shown incapability of seeing eye-to-eye on grave matters relating to International Law and order over the decades.

The foregoing considerations could force the conclusion on uncritical sections that Political Realism or Realpolitik has won out in the end. A basic premise of the school of thought known as Political Realism is that power or force wielded by states and international actors determine the shape, direction and substance of international relations. This school stands in marked contrast to political idealists who essentially proclaim that moral norms and values determine the nature of local and international politics.

While, British political scientist Thomas Hobbes, for instance, was a proponent of Political Realism, political idealism has its roots in the teachings of Socrates, Plato and latterly Friedrich Hegel of Germany, to name just few such notables.

On the face of it, therefore, there is no getting way from the conclusion that coercive force is the deciding factor in international politics. If this were not so, US President Donald Trump in collaboration with Israeli Rightist Premier Benjamin Natanyahu could not have wielded the ‘big stick’, so to speak, on Iran, killed its Supreme Head of State, terrorized the Iranian public and gone ‘scot-free’. That is, currently, the US’ impunity seems to be limitless.

Moreover, the evidence is that the Western bloc is reuniting in the face of Iran’s threats to stymie the flow of oil from West Asia to the rest of the world. The recent G7 summit witnessed a coming together of the foremost powers of the global North to ensure that the West does not suffer grave negative consequences from any future blocking of western oil supplies.

Meanwhile, Israel is having a ‘free run’ of the Middle East, so to speak, picking out perceived adversarial powers, such as Lebanon, and militarily neutralizing them; once again with impunity. On the other hand, Iran has been bringing under assault, with no questions asked, Gulf states that are seen as allying with the US and Israel. West Asia is facing a compounded crisis and International Law seems to be helplessly silent.

Wittingly or unwittingly, matters at the heart of International Law and peace are being obfuscated by some pro-Trump administration commentators meanwhile. For example, retired US Navy Captain Brent Sadler has cited Article 51 of the UN Charter, which provides for the right to self or collective self-defence of UN member states in the face of armed attacks, as justifying the US sinking of the Iranian vessel (See page 2 of The Island of March 10, 2026). But the Article makes it clear that such measures could be resorted to by UN members only ‘ if an armed attack occurs’ against them and under no other circumstances. But no such thing happened in the incident in question and the US acted under a sheer threat perception.

Clearly, the US has violated the Article through its action and has once again demonstrated its tendency to arbitrarily use military might. The general drift of Sadler’s thinking is that in the face of pressing national priorities, obligations of a state under International Law could be side-stepped. This is a sure recipe for international anarchy because in such a policy environment states could pursue their national interests, irrespective of their merits, disregarding in the process their obligations towards the international community.

Moreover, Article 51 repeatedly reiterates the authority of the UN Security Council and the obligation of those states that act in self-defence to report to the Council and be guided by it. Sadler, therefore, could be said to have cited the Article very selectively, whereas, right along member states’ commitments to the UNSC are stressed.

However, it is beyond doubt that international anarchy has strengthened its grip over the world. While the US set destabilizing precedents after the crumbling of the Cold War that paved the way for the current anarchic situation, Russia further aggravated these degenerative trends through its invasion of Ukraine. Stepping back from anarchy has thus emerged as the prime challenge for the world community.

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