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Renewable energy share in power generation – President misled by advisers

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Continued from yesterday

by Dr. Janaka Ratnasiri
PROPOSALS FOR DEVELOPING
RE PROJECTS

In 2017, an inter-ministerial committee (IMC) has made a set of recommendations to the Cabinet to install in the short term several utility scale solar PV systems, wind energy systems and biomass energy systems, and these were approved by the Cabinet of Ministers. These projects included solar power projects comprising three large utility scale projects at Pooneryne (800 MW) and two sets at Syambalanduwa (2×100 MW) along with 300,000 roof top systems providing 300 MW and several small-scale systems each below 10 MW adding to 500 MW in places of high solar insolation. The building of a 100 MW floating solar PV system was previously approved by the Cabinet. These projects will add up to a total capacity of 1,900 MW which could generate about 3,329 GWh annually assuming 20 % plant factor. Cabinet approvals were granted on 16.12.2016 for building a Solar Power Park of capacity 100 MW in Siyambalaanduwa.

The CEB has already initiated development of a wind energy farm at Mannar and plans to develop more in the Jaffna district. A total capacity of 650 MW is to be developed generating nearly 1,708 GWh of electricity. In addition, a SLSEA Report dated 27.03.2019, says that several proposals for developing RE projects submitted since 2016 by investors received the approval of the SLSEA, but these have been held up as the CEB has not agreed to sign the necessary power purchase agreements with them, on grounds that that they were not selected after calling tenders as required in the Electricity Act. These projects held back by the CEB were expected to add 3,052 MW of RE capacity generating 6,923 GWh of energy annually, comprising 925 GWh from mini-hydro plants, 3553 GWh from solar plants, 2063 GWh from wind plants, 237 GWh from biomass plants and 145 GWh from waste-to-energy plants.

Section 13 of the Electricity Act says “requirement to submit a tender on the publication of a notice under this subsection shall not be applicable in respect of any new generation plant or to the expansion of any existing generation plant that is being developed on a permit issued by the Sri Lanka Sustainable Energy Authority, established by the Sustainable Energy Authority Act, No. 35 of 2007 under section 18 of that Act for the generation of electricity through renewable energy sources and required to be operated at the standardized tariff and is governed by a Standardized Power Purchase Agreement approved by the Cabinet of Ministers or on an offer received from a foreign sovereign Government to the Government of Sri Lanka, for which the approval of the Cabinet of Ministers has been obtained”. Hence, denial of approval by the CEB for RE projects for which permits have been issued by SLSEA is a misinterpretation of the Act. The President has given clear instructions that such barriers against the private sector involving in developing RE projects be removed.

A summary of the above RE projects that could be developed by 2030 long with the commissioned and permitted RE projects are shown in Table 5.

It is seen that the total generation potential from RE sources including those already installed, projects for which permits have been issued, utility scale projects approved by the Cabinet and projects permitted by the SLSEA and awaiting acceptance by the CEB add up to 15,026 GWh annually. This is 4,670 GWh short of the generation required from RE sources to reach the target of 80%, which is 20,500 GWh as shown in Table 4. This can be achieved by installing additional solar PV plants, wind power plants and biomass plants, with generation shared among them each share depending on the availability of resources and economies.

POTENTIAL FOR DEVELOPING
RE PROJECTS

Sri Lanka has a large number of reservoirs both ancient and recently built covering an area about 43,000 ha in the North Central and Eastern Provinces where the solar insolation is high (Arjuna Atlas). Since solar PV panels require about 1 ha for every 1 MW of installed capacity, installation of solar panels covering at least 10% of the area of the reservoirs has the potential to generate about 7,000 GWh of electricity annually from 4,000 MW of installed capacity. This could be achieved with the concurrence of the Irrigation Department (ID).

An all island Wind Energy Resource Atlas of Sri Lanka was developed by National Renewable Energy Laboratory (NREL) of USA in 2003, indicates nearly 5,000 km2 of windy areas with good-to-excellent wind resource potential in Sri Lanka. About 4,100 km2 of the total windy area is on land and about 700 km2 is in lagoons. The windy land represents about 6% of the total land area (65,600 km2) of Sri Lanka. Using a conservative assumption of 5 MW per km2, this windy land could support almost 20,000 MW of potential installed capacity (SLSEA Website). 

Last year, the Cabinet declared 2022 as the year of Biomass Energy with the objective of promoting energy generation from biomass. Already, SLSEA is pursuing a project funded partly by UNDP and FAO for “Promoting Sustainable Biomass Energy Production and Modern Bio-Energy Technologies” with the specific objective of removing obstacles to the realization of sustainable biomass plantation, increase of market share of biomass energy generation. Currently, a survey is being undertaken to identify land available and suitable for energy plantations. It is expected that by 2030, biomass technologies could add about 500 GWh of energy to the system.

It is clear therefore that Sri Lanka has the resources to develop RE projects exceeding the amount required to meet the 80% share in total electricity generation by 2030. Coordination and cooperation among stakeholder institutes such as CEB, SLSEA and ID are prerequisites for realizing this target.

FINANCIAL BARRIERS AGAINST
ACHIEVING THE TARGETS

It may be recalled that in 2015, nations adopted the Paris Agreement at the Climate Change Summit Conference held in Paris, undertaking voluntary reduction of greenhouse gas (GHG) emissions that contribute to global warming and in turn causing climate change. Concurrently, the Conference announced that “developed countries commit to a goal of mobilizing jointly USD 100 billion dollars a year by 2020 to address the needs of developing countries in meeting their obligations under the Paris Agreement”. Though the Cabinet has taken a decision to build 650 MW of wind power plants and 1,900 MW of solar power plants in 2017, there has been no progress possibly due to lack of finances or investors for implementing the projects.

The easiest way of reducing GHG emissions is to shift from fossil fuels to renewable sources for the generation of energy. Hence, it is possible to get financial assistance from various financial mechanisms set up under the Climate Change Convention (CCC) to defray costs incurred in shifting to renewable energy sources, for which proposals need to be submitted to the CCC Secretariat through the Ministry of Environment who is the focal point for CCC in Sri Lanka. It is the writer’s understanding that Sri Lanka has not sought any financial assistance from these sources.

As a side event at the CCC held in Paris in 2015, a programme called the International Solar Alliance (ISA), was launched by the Prime Minister of India and the President of France on November 30, 2015, with the objective of scaling up solar energy applications, reducing the cost of solar power generation through aggregation of demand for solar finance, technologies, innovation, research and development, and capacity building. The ISA aims to pave the way for future solar generation, storage and technologies for member countries’ needs by mobilizing over USD 1000 billion by 2030, according to the India’s Ministry of New and Renewable Energy (MNRE) website (https://mnre.gov.in/isa/). Sri Lanka is also a signatory to the agreement signed at the launching ceremony.

It was reported in the Sunday Island of 26.07.2020 that India’s state-run National Thermal Power Corporation (NTPC) Ltd has offered to set up a solar energy park in Sri Lanka under the aegis of ISA. Being a member of ISA, Sri Lanka should welcome India’s offer to build a solar park in Sri Lanka under ISA. Under the terms of ISA, India only facilitates sourcing of funding and services and the host country has the ownership for the project, who is required to do the preliminary ground work to seek funding. According to a reliable source, the CEB is not keen in pursuing this offer as it is not a tendered project. However, there is provision in the Act as shown above to accept this offer if it is deemed to be a project offered by the Government of India which it is. This again is a misinterpretation of the Act.

PROBLEMS FACING IN EXPANSION
OF RE SYSTEMS

When more and more RE systems are built, their integration into the national grid may pose some problems. One is the rapid variation of the output of solar and wind systems. With the development of software that could forecast these variations on-line, it is possible to increase the penetration of RE systems into the grid. If necessary, CEB may acquire this technology from any foreign country who has already implemented high penetration of RE into their system. It is also important that all solar and wind plants strictly conform to specifications, particularly in respect of voltage and harmonics control.

Another is the need for storage for saving the electricity generated during the daytime by solar systems for use at night time. There are several options for this too, among which are using high capacity batteries, build pump-storage reservoirs and generate hydrogen from day-time power.

A report by JICA on Electricity Sector Master Plan Study in Sri Lanka released in March, 2018 considered the option of generation with 100% renewable energy sources by 2040, recommending that to meet the deficit of power arising out of continuing high cloud cover for several days, storage batteries need to be installed at an estimated cost of USD 1,000 million which may have life-time of only 5 years.

Another JICA report on Development Planning on Optimal Power Generation for Peak Demand in Sri Lanka released in February 2015 considered building a pump-storage system with capacity 600 MW on Maha Oya near Aranayaka with a head of about 500 m at a cost of USD 700 million. This is also included in the CEB Plan.

However, another option that could be implemented without incurring any additional costs is to utilize the existing hydropower reservoirs where energy generated by solar systems could be stored. This is by avoiding generation of hydro power by an amount equivalent to that generated by solar systems during daytime. This saved hydro power is then available for using during night time (see article by Chandre Dharmawardana in The Island of 15.07.2020). The saved energy will get enhanced due to prevention of evaporation when the reservoirs are covered with solar panels.

There is much interest among developed countries to use hydrogen as an energy carrier and for storage. In a report published by CSIRO in Australia on National Hydrogen Roadmap in 2018, the possibility of generating hydrogen utilizing Australia’s vast potential for RE for both local application and for export was considered. Hydrogen systems can provide both electricity grid stability (i.e. seconds to hourly storage) and grid reliability (i.e. seasonal storage) services. Hydrogen generated from stand-alone solar and wind plants along with fuel cells can be used to generate electricity as and when necessary.

A third problem often cited by CEB is the lack of capacity of the transmission system to accommodate energy generated by RE systems as planned. According to the CEB, installing more than 20 MW of wind capacity in any given region may adversely impact local grid stability and power quality (NREL Study, 2003). This problem could be solved by improving the substations in outstations and increasing the capacity of transmission lines connected to them.

It was shown in Table 4 that in order to achieve 80% of generation from RE sources, it is necessary to deviate from the CEB’s LTGE Plan as shown in Table 4. However, the 2013 Electricity Act requires that any addition of capacity should be done while meeting the requirements of the CEB LTGE Plan. Hence, either the CEB Plan needs to be revised or the Act needs to be amended. Otherwise, the CEB may not consider implementing the adjusted scenario even though it meets the President’s policy.

CONCLUSION

With the existing and permitted RE projects along with those approved by the Cabinet and SLSEA, it will be possible to generate electricity 4,600 GWh short of the amount required to meet the target of 80% of generation from RE sources. This amount could easily be generated from a combination of solar, wind and biomass systems. Hence, there is absolutely no need to revise the President’s target of 80% to 70% as decided at the meeting held on 14.09.2020.

It is also essential to explore the possibilities of sourcing funds for adopting RE sources in place of fossil fuels which are available internationally because of the saving of GHG emissions. This will reduce the country’s burden on financing the RE projects. Perhaps it is time the President gets advisers with commitment to green energy who will give him the correct advice. It is a pity that when there is political will it is absent among the professionals concerned.



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Features

Strong on vocals

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The group Mirage is very much alive, and kicking, as one would say!

Their lineup did undergo a few changes and now they have decided to present themselves as an all male group – operating without a female vocalist.

At the helm is Donald Pieries (drums and vocals), Trevin Joseph (percussion and vocals), Dilipa Deshan (bass and vocals), Toosha Rajarathna (keyboards and vocals), and Sudam Nanayakkara (lead guitar and vocals).

The plus factor, where the new lineup is concerned, is that all five members sing.

However, leader Donald did mention that if it’s a function, where a female vocalist is required, they would then feature a guest performer.

Mirage is a very experience outfit and they now do the Friday night scene at the Irish Pub, in Colombo, as well as private gigs.

 

 

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Dichotomy of an urban-suburban New Year

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Ushered in by the ‘coo-ee’ of the Koel and the swaying of Erabadu bunches, the Sinhala and Tamil New Year will dawn in the wee hours of April 14. With houses to clean, preparation of sweetmeats and last-minute shopping, times are hectic…. and the streets congested.

It is believed that New Year traditions predated the advent of Buddhism in the 3rd century BC. But Buddhism resulted in a re-interpretation of the existing New Year activities in a Buddhist light. Hinduism has co-existed with Buddhism over millennia and no serious contradiction in New Year rituals are observed among Buddhists and Hindus.

The local New Year is a complex mix of Indigenous, Astrological, Hindu, and Buddhist traditions. Hindu literature provides the New Year with its mythological backdrop. The Prince of Peace called Indradeva is said to descend upon the earth to ensure peace and happiness, in a white carriage wearing on his head a white floral crown seven cubits high. He first plunges, into a sea of milk, breaking earth’s gravity.

The timing of the Sinhala New Year coincides with the New Year celebrations of many traditional calendars of South and Southeast Asia. Astrologically, the New Year begins when the sun moves from the House of Pisces (Meena Rashiya) to the House of Aries (Mesha Rashiya) in the celestial sphere.

The New Year marks the end of the harvest season and spring. Consequently, for farming communities, the traditional New Year doubles as a harvest as well. It also coincides with one of two instances when the sun is directly above Sri Lanka. The month of Bak, which coincides with April, according to the Gregorian calendar, represents prosperity. Astrologers decide the modern day rituals based on auspicious times, which coincides with the transit of the Sun between ‘House of Pisces’ and ‘House of Aries’.

Consequently, the ending of the old year, and the beginning of the new year occur several hours apart, during the time of transit. This period is considered Nonegathe, which roughly translates to ‘neutral period’ or a period in which there are no auspicious times. During the Nonegathe, traditionally, people are encouraged to engage themselves in meritorious and religious activities, refraining from material pursuits. This year the Nonegathe begin at 8.09 pm on Tuesday, April 13, and continues till 8.57 am on 14. New Year dawns at the halfway point of the transit, ushered in bythe sound of fire crackers, to the woe of many a dog and cat of the neighbourhood. Cracker related accidents are a common occurrence during new year celebrations. Environmental and safety concerns aside, lighting crackers remain an integral part of the celebrations throughout Sri Lanka.

This year the Sinhala and Tamil New Year dawns on Wednesday, April 14, at 2.33 am. But ‘spring cleaning’ starts days before the dawn of the new year. Before the new year the floor of houses are washed clean, polished, walls are lime-washed or painted, drapes are washed, dried and rehang. The well of the house is drained either manually or using an electric water pump and would not be used until such time the water is drawn for first transaction. Sweetmeats are prepared, often at homes, although commercialization of the new year has encouraged most urbanites to buy such food items. Shopping is a big part of the new year. Crowds throng to clothing retailers by the thousands. Relatives, specially the kids, are bought clothes as presents.

Bathing for the old year takes place before the dawn of the new year. This year this particular auspicious time falls on April 12, to bathe in the essence of wood apple leaves. Abiding by the relevant auspicious times the hearth and an oil lamp are lit and pot of milk is set to boil upon the hearth. Milk rice, the first meal of the year, is prepared separate. Entering into the first business transaction and partaking of the first meal are also observed according to the given auspicious times. This year, the auspicious time for preparing of meals, milk rice and sweets using mung beans, falls on Wednesday, April 14 at 6.17 am, and is to be carried out dressed in light green, while facing east. Commencement of work, transactions and consumption of the first meal falls on Wednesday, April 14 at 7.41 am, to be observed while wearing light green and facing east.

The first transaction was traditionally done with the well. The woman of the house would draw water from the well and in exchange drop a few pieces of charcoal, flowers, coins, salt and dried chillies into the well, in certain regions a handful of paddy or rice is also thrown in for good measure. But this ritual is also dying out as few urban homes have wells within their premises. This is not a mere ritual and was traditionally carried out with the purification properties of charcoal in mind. The first water is preferably collected into an airtight container, and kept till the dawn of the next new year. It is believed that if the water in the container does not go down it would be a prosperous year. The rituals vary slightly based on the region. However, the essence of the celebrations remains the same.

Anointing of oil is another major ritual of the New Year celebrations. It falls on Saturday, April 17 at 7.16 am, and is done wearing blue, facing south, with nuga leaves placed on the head and Karada leaves at the feet. Oil is to be applied mixed with extracts of Nuga leaves. The auspicious time for setting out for professional occupations falls on Monday, April 19 at 6.39 am, while dressed in white, by consuming a meal of milk rice mixed with ghee, while facing South.

Traditionally, women played Raban during this time, but such practices are slowly being weaned out by urbanization and commercialisation of the New Year. Neighbours are visited with platters of sweetmeats, bananas, Kevum (oil cake) and Kokis (a crispy sweetmeat) usually delivered by children. The dichotomy of the urban and village life is obvious here too, where in the suburbs and the village outdoor celebrations are preferred and the city opts for more private parties.

 

 

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New Year games: Integral part of New Year Celebrations

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Food, games and rituals make a better part of New Year celebrations. One major perk of Avurudu is the festivals that are organised in each neighbourhood in its celebration. Observing all the rituals, like boiling milk, partaking of the first meal, anointing of oil, setting off to work, are, no doubt exciting, but much looked-forward-to is the local Avurudu Uthsawaya.

Avurudu Krida or New Year games are categorised as indoor and outdoor games. All indoor games are played on the floor and outdoor games played during the Avurudu Uthsava or New Year festival, with the whole neighbourhood taking part. Some of the indoor games are Pancha Dameema, Olinda Keliya and Cadju Dameema. Outdoor games include Kotta pora, Onchili pedeema, Raban geseema, Kana mutti bindeema, Placing the eye on the elephant, Coconut grating competition, Bun-eating competition, Lime-on-spoon race, Kamba adeema (Tug-o-War) and Lissana gaha nageema (climbing the greased pole). And what’s an Avurudhu Uthsava sans an Avurudu Kumari pageant, minus the usual drama that high profile beauty pageants of the day entail, of course.

A salient point of New Year games is that there are no age categories. Although there are games reserved for children such as blowing of balloons, races and soft drinks drinking contests, most other games are not age based.

Kotta pora aka pillow fights are not the kind the average teenagers fight out with their siblings, on plush beds. This is a serious game, wherein players have to balance themselves on a horizontal log in a seated position. With one hand tied behind their back and wielding the pillow with the other, players have to knock the opponent off balance. Whoever knocks the opponent off the log first, wins. The game is usually played over a muddy pit, so the loser goes home with a mud bath.

Climbing the greased pole is fun to watch, but cannot be fun to take part in. A flag is tied to the end of a timber pole-fixed to the ground and greased along the whole length. The objective of the players is to climb the pole, referred to as the ‘tree’, and bring down the flag. Retrieving the flag is never achieved on the first climb. It takes multiple climbers removing some of the grease at a time, so someone could finally retrieve the flag.

Who knew that scraping coconut could be made into an interesting game? During the Avurudu coconut scraping competition, women sit on coconut scraper stools and try to scrape a coconut as fast as possible. The one who finishes first wins. These maybe Avurudu games, but they are taken quite seriously. The grated coconut is inspected for clumps and those with ungrated clumps are disqualified.

Coconut palm weaving is another interesting contest that is exclusive to women. However men are by no means discouraged from entering such contests and, in fact, few men do. Participants are given equally measured coconut fronds and the one who finishes first wins.

Kana Mutti Bindima involves breaking one of many water filled clay pots hung overhead, using a long wooden beam. Placing the eye on the elephant is another game played while blindfolded. An elephant is drawn on a black or white board and the blindfolded person has to spot the eye of the elephant. Another competition involves feeding the partner yoghurt or curd while blindfolded.

The Banis-eating contest involves eating tea buns tied to a string. Contestants run to the buns with their hands tied behind their backs and have to eat buns hanging from a string, on their knees. The one who finishes his or her bun first, wins. Kamba adeema or Tug-o-War pits two teams against each other in a test of strength. Teams pull on opposite ends of a rope, with the goal being to bring the rope a certain distance in one direction against the force of the opposing team’s pull.

Participants of the lime-on-spoon race have to run a certain distance while balancing a lime on a spoon, with the handle in their mouths. The first person to cross the finish line without dropping the lime wins. The sack race and the three-legged race are equally fun to watch and to take part in. In the sack race, participants get into jute sacks and hop for the finish line. The first one over, wins. In the three-legged race one leg of each pair of participants are tied together and the duo must reach the finish line by synchronising their running, else they would trip over their own feet.

Pancha Dameema is an indoor game played in two groups, using five small shells, a coconut shell and a game board. Olinda is another indoor board game, normally played by two players. The board has nine holes, four beads each. The player who collects the most number of seeds win.

This is the verse sung while playing the game:

“Olinda thibenne koi koi dese,

Olinda thibenne bangali dese…

Genath hadanne koi koi dese,

Genath hadanne Sinhala dese…”

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