Green Issues for Singapore General Elections 2011 – #1 Coal

A series of green issues that could be discussed at the Singapore General Elections 2011. The first issue (not in order of importance) is on the use of coal.

What are the political parties’ stand on the use of coal in Singapore and the implications on our carbon emissions target and our clean and green image?

Tuas Power’s coal plant

Read the chronology of the clean coal and biomass cogeneration plant by Tuas Power.

Tuas Power’s new coal and biomass plant at Jurong Island would start operations mid next year, and the company has signed a contract with Indonesia’s PT Bayan Resources to supply 13.36 million tonnes of sub-bituminous coal over the next 15 years from Kalimantan, and has also struck a deal with South Korea’s Samtam Co Ltd to supply coal. Tuas Power is also concluding a deal for the palm kernel, which makes up the 20% biomass component of the plant feedstock (the other 80% is coal).

If a calculation is done only for the coal supplied by PT Bayan Resources, and excluding the coal from Samtam Co Ltd and the palm biomass, the combustion of 13.36 million tonnes of sub-bituminous coal would emit about 24 million tonnes of carbon dioxide (using the Greenhouse Gas Protocol’s calculation tool). Read more

Clean Coal and Biomass Cogeneration Plant by Tuas Power: A Chronology

This is a chronology of the news and responses on Tuas Power’s clean coal and biomass cogeneration plant.

14 Mar 08 – Tuas Power sold to China Huaneng Group (Temasek successfully completes divestment of Tuas Power by Temasek Holdings)

27 Mar 08 – Tuas Power announced that it is looking at building a $2 billion coal-fired plant (Tuas Power may build $2b coal-fired plant by Business Times)

2 Apr 08 – We think it is highly possible that Tuas Power would take the coal route and expressed our concerns (Red dot goes black? by AsiaIsGreen)

26 Sep 08 – Tuas Power announced plans to build a $2 billion steam and electricity production plant to run on clean coal and biomass on Jurong Island (Tuas Power to build $2b ‘clean’ plant by Straits Times) Read more

Update on Tuas Power’s clean coal plant (part 2)

The Straits Times did not publish our reply letter so we sent the following email to NEA, EMA and Tuas Power:

I refer to the reply letters, “Clean coal: Assurance by Tuas Power” by Tuas Power and “Plant balances cost and green concerns” by the National Environment Agency and Energy Market Authority. It is reassuring that Tuas Power and the Government are committed to environmental sustainability.

In the reply from NEA and EMA, I find that the comparison of carbon emissions between the new plant and existing oil-fired plants is inappropriate. Singapore generates 80 per cent of its electricity by natural gas-fired plants, which are more efficient and less carbon
intensive than oil-fired plants. Since gas-fired plants are the main type of technology used in Singapore, new plants to be built should be using technologies that produce carbon emissions at a level that is equivalent to or better than the existing gas-fired plants, and not the oil-fired plants.

I would appreciate an answer from NEA, EMA or Tuas Power on the following question: What is the carbon emission per unit of electricity generation for Tuas Power’s new plant, and is it less or more than a gas-fired plant?

If Singapore is committed to do its part in global efforts to tackle climate change, we should be using fuel and technologies that reduce carbon emissions.

Thank you.

This is NEA and EMA’s reply: Read more

Update on Tuas Power’s clean coal plant

Tuas Power, National Environment Agency and Energy Market Authority replied to our letter on the new clean coal plant being one step forward and two steps backward in Singapore’s green efforts. This is our reply to The Straits Times:

I refer to the reply letters, “Clean coal: Assurance by Tuas Power” by Tuas Power and “Plant balances cost and green concerns” by the National Environment Agency and Energy Market Authority. It is reassuring that Tuas Power and the Government are committed to environmental sustainability. However, I find that the comparison of carbon emissions between the new plant and existing oil-fired plants is inappropriate.

Singapore generates 80 per cent of its electricity by natural gas-fired plants, which are more efficient and less carbon intensive than oil-fired plants. Since gas-fired plants are the main type of technology used in Singapore, new plants to be built should be using
technologies that produce carbon emissions at a level that is equivalent to or better than the existing gas-fired plants, and not the oil-fired plants.

Is the carbon emission per unit of electricity generation for Tuas Power’s new plant less or more than a gas-fired plant?

If Singapore is committed to do its part in global efforts to tackle climate change, we should be using fuel and technologies that reduce carbon emissions.

Tuas Power vs Senoko Power

Which power plant is greener? Tuas Power or Senoko Power?

Tuas Power is building a clean coal and biomass plant:

Mr Lim Kong Puay, chief executive of Tuas Power, said: “The efficient use of the cogeneration technology coupled with biomass and clean coal allows us to achieve savings, and this saving will be passed on to our industrial consumers.”

‘Overall, we are able to produce one unit of energy at a more competitive cost,’ said Tuas Power president and CEO Lim Kong Puay.

Senoko Power is converting its plants from oil-fired to gas-fired:

Senoko had considered using coal, which is a cheaper fuel, Mr Adair said, but was very conscious of its carbon footprint which is two-and-a-half times that of natural gas. On the other hand, the carbon footprint of gas is also only 60 per cent that of oil. The genco will be seeking carbon credits for the project, he added.

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