PTT's gas leak affects 3,000-megawatt power generation: EGAT

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PTT's gas leak affects 3,000-megawatt power generation: EGAT

Ungelesener Beitragvon KoratCat » So Jun 26, 2011 3:12 pm

PTT's gas leak affects 3,000-megawatt power generation: EGAT‬

BANGKOK, June 26 - Thailand's largest energy conglomerate PTT Public Company's impaired natural gas pipeline from a natural gas processing platform in the Gulf of Thailand, leaking since Saturday afternoon, may affect power generation of about 3,000 megawatts, or 4-5 power plants, according to Suthat Pattamasiriwat, director of the Electricity Generating Authority of Thailand (EGAT).‬

To tackle the problem, other types of fuel, such as stove oil and liquefied natural gas (LNG), are currently being used by EGAT to generate power, which Mr Suthat admitted could result in higher electricity bill. The normal electricity charge would resume once PTT finishes repairs to its gas pipeline.‬

‪According to EGAT, 70 per cent of natural gas harvested domestically is normally used for generating power for Thailand.

‪The Gas Transmission Pipeline unit's executive vice president Wichai Pornkeratiwat of PTT Group said the leak was located around 325 kilometres from the eastern province of Rayong's coast, where a main tube of 34-inch diametre and a minor pipeline of 24-inch diametre were linked.‬

‪A remotely operated vehicle (ROV) was sent into the sea to monitor the situation and estimate time for further repair.‬

‪PTT announced the amount of gas leak reached around 600 million cubic feet per day, which clearly affected the company's ability to transfer the natural gas to EGAT and the gas separation plants. In the meantime, a gas supply of about 400 million cubic feet was available to EGAT, while also sourcing 30 million litre stove oil supply, LNG, and gas from other fuel sources for power plants, which PTT said will be sufficient to meet demand. ‬

The gas leak incident has not had a negative impact on the marine ecosystem, Mr Wichai said, because natural gas was lighter than air, insoluble in water, and in an unadulterated form.‬

‪Meanwhile, permanent secretary of energy Norkhun Sitthipong said the gas leak agenda is under the ministry's emergency plan. An executive board's meeting on fuel is set for Monday to follow and manage the situation.

(MCOT online news)‬
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Re: PTT's gas leak affects 3,000-megawatt power generation:

Ungelesener Beitragvon KoratCat » Mo Jun 27, 2011 8:03 am

GULF OF THAILAND
Pipeline leak will drive up power bills, says Egat

A leak in a pipeline of Thailand's largest energy conglomerate, PTT Plc, in the Gulf of Thailand will cut gas supplies and affect power generation, raising the prospect of higher electricity bills.

The Energy Ministry has called a meeting of fuel executives today to discuss how to handle the situation.

Ministry permanent secretary Norkhun Sitthipong said gas leaks of such a magnitude came under the ministry's emergency agenda.

The leak in the submerged pipeline was detected on Saturday evening. It was located about 325km from the eastern province of Rayong at a junction where the main 34-inch diameter pipe and a 24-inch diameter pipe were connected, PTT said yesterday. A remotely operated vehicle was sent to the site to monitor the situation and allow engineers to estimate the time needed for repairs.

PTT immediately shut down gas transmission through the main pipeline, cutting off about 600 million cubic feet per day of gas to the Electricity Generating Authority of Thailand and PTT's gas separation plants, said PTT executive vice-president of natural gas operations Wichai Pornkeratiwat.

He said PTT had already begun seeking 30 million litres of bunker oil for power plants and procuring liquefied natural gas to make up the shortfall.

Mr Wichai claimed the gas leak would not affect the marine ecosystem or the environment, as natural gas was lighter than air, insoluble in water and in an unadulterated form.

The use of bunker oil will cost substantially more than the natural gas, raising fears that power bills will rise.

Egat governor Suthat Pattamasiriwat conceded electricity was likely to cost more as a result.

The price would return to normal once PTT had finished repairs to the pipeline. The gas leak might cut power generation by about 3,000 megawatts at four or five power plants, he said.

About 70% of Egat's power generation is fuelled by natural gas.

Manoon Siriwan, an energy consultant and former executive of Bangchak Petroleum, said the scale of the impact on electricity generation would depend on the time it took to repair the leak.

If PTT manages to seal the leak within two weeks, the impact would be minimal, he said, but if it took more than a month, the impact could be considerable.

Assessments are continuing.

Bangkok Post
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Re: PTT's gas leak affects 3,000-megawatt power generation:

Ungelesener Beitragvon KoratCat » Di Jun 28, 2011 11:27 am

ENERGY
PTT gas leak spurs plan to avert power emergency

The Energy Ministry has implemented an emergency plan to prevent power shortages due to the leak in the Gulf of Thailand's main gas pipeline.

The leak in energy giant PTT Plc's underwater pipeline was detected on Saturday evening about 325km from Rayong at a two-pipe junction.

The energy plan includes delaying scheduled maintenance at a number of power plants, increasing liquefied natural gas (LNG) imports, delaying the renewal of operations at a PTT gas separation plant closed for maintenance, and banning bunker oil exports.

The ministry has not decided who will shoulder the higher cost of power generation caused by switching from gas to more expensive fuels.

"Measures to prevent blackouts and impacts on power generation are our priority," ministry permanent secretary Norkhun Sitthipong said after meeting with energy executives.

"The costs of the incident and their impact on electricity bills will be considered later."

After the leak was detected, PTT immediately shut down the main pipeline, cutting off about 600 million cubic feet per day, the equivalent of 14% of the nation's total daily gas consumption.

Under the emergency measures, the ministry ordered two major power producers, the Electricity Generating Authority of Thailand (Egat) and Ratchaburi Electricity, to delay planned maintenance shutdowns of some power plants, including Egat's Mae Moh power plant in Lampang.

The ministry also ordered PTT to import more than 70,000 tonnes of LNG to supply Egat's power plants and to delay plans to resume operations at one of its commercial gas separation plants which is now closed for maintenance.

The ministry ordered a temporary ban on bunker oil exports so that the fuel can be used as a substitute for gas.

Furthermore, the ministry will temporarily relax regulations for Bang Pakong power plant. The plant will be allowed to use bunker oil with up to 2% sulphur, compared to the current limit of 0.5%.

PTT chief executive Prasert Bunsumpun said the company would examine the pipeline today in order to evaluate how long it will take to repair the rupture.

The incident has forced Egat power plants to shift from using natural gas to 10 million litres of bunker oil per day. No brown-outs or black-outs have occurred due to the gas supply disruption.

"The impact of the accident will result in higher electricity bills and the authority will consider later who is responsible for the accident," he said.

"We will meet with our staff and discuss ways to prevent the possibility of a similar accidents in the future."

Stop Global Warming Association chairman Srisuwan Janya accused the PTT of having poor monitoring systems and standards for its marine gas pipelines, saying that this was not the first time it had experienced a gas pipeline leak.He dismissed PTT's claim the leak would not affect the marine ecosystem.

"The gas leak will make the seawater more acidic and harm food chains in the areas," he said.

Bangkok Post
Es gibt nichts Gutes, ausser man tut es! Erich Kästner, 1899 - 1974


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