by Theleaders-Online | April 24, 2019 2:28 am
KUALA LUMPUR: Tenaga Nasional Bhd (TNB) has come a long way since its establishment in 1949 as the Central Electricity Board (CEB) to become the catalyst of national development.
TNB, which is celebrating its 70th anniversary in September this year, has undergone several major transformation, including rebranding as the National Electricity Board (LLN) in 1965, privatisation in 1990 and corporatisation in 1992.
Chairman Tan Sri Leo Moggie said TNB has grown from strength to strength throughout the years, especially the period of demand boom for power supply since 1980s.
“TNB has grown matured for the last 70 years, has made major contributions to the development of the country and internally has also adjusted itself to be relevant at every stage of development in technology and every stage development of the country,” he told Bernama in an interview.
He said as with economic growth, the demand for electricity grew in tandem but TNB remained steadfast in delivering its duty as the sole electricity distributor in the country.
“We recorded the highest demand of electricity at 18,566 megawatt (MW) a few days ago as compared to 1978/1979 when the highest demand at that time was averaging 1,260 MW,” he said.
He said despite the surge in electricity demand, the electricity industry still has about 20 per cent of reserve margin to cover unexpected power generator plants breakdown.
Moggie said TNB has elevated the quality of electricity supply in the country as measured via the System Average Interruption Duration Index (SAIDI), a methodology used by the electricity industry worldwide to measure the length of time each consumer experiences power disruption in a year.
“TNB’s SAIDI record now 48 minutes and we are proud of it. We are better than the UK,” he said.
In comparison, SAIDI in England was 55 minutes last year, France (60 minutes), Ireland (90 minutes) and Australia (125 minutes,) while neighbouring country, Thailand has a SAIDI of 60 minutes.
He said another benchmark is Transmission System Minutes which measures the minutes of interruption caused by transmission per year whereby the company recorded less than a minute for 2018, a record that is comparable to developed nations.
“What it reflects is our transmission network is now actually quite efficient,” he said.
On people’s perception that TNB is monopolising the power industry, Moggie said such misconception derived from TNB’s role as the sole distributor of electricity in the country.
“In most countries, the main transmission network always seems to be a natural monopoly, which is managed usually by the regulated government agency,” he said.
However, he said the power generation industry in the country is open for participation to others known as the independent power producer (IPP) which was introduced in the early 1990s.
“TNB generation capacity on its own amounted to only about 49 per cent, while 51 per cent is actually generated by IPPs and then sold to TNB as single buyer on a long-term power purchase agreement (PPA),” he said.
He said the PPA is a long-term deal based on two components — capacity charge and energy charge.
“Capacity charge is meant to allow the recouping of the capital investment on building a power plant, while energy charge is based on the fuel (gas or coal) price that is utilised to generate power, depending on the movement of the fuel price internationally,” he said.
He said the participation of the IPPs in the industry has helped to grow the industry and made it more competitive.
Moggie said other countries had introduced a more open system called merchant market where the contract period is shorter and interested companies can build power plant and sell it to the utilities that transmit and sell to the consumers in a very competitive environment.
“The risk there is new investors may not be prepared to put investment on new generating capacity without an assurance from the market and subsequently they go back to use the PPA,” he said.
He said the presence of the PPA gives potential investors the confidence in building new capacity because of assurance in return on investment.
Moggie also argued on the idea of completely liberalising the electricity supply, citing such move may not immediately leads to reduction in electricity prices as evidenced in the UK and other European countries.
“When the UK and other European countries started liberalising electricity supply, there was a slight increase in consumer bill.
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