PETROS to Develop Combined Cycle Gas Turbine (CCGT) Power Plant in Miri.
The Miri Combined Cycle Power Plant, located in Lutong, Miri district, Sarawak, Malaysia, is planned as an EPCC project. The plant will be built on approximately 12 hectares of state land. PETROS intends to develop a 500 MW Combined Cycle Gas Turbine (CCGT) Power Plant in a single phase, with an estimated net output of 500 MW at Reference Site Conditions (RSC). The design will feature a multi-shaft setup with dual-fuel firing capabilities, incorporating an advanced gas turbine paired with a steam turbine. The plant is designed for a minimum operational lifespan of 25 years.
Sarawak is committed to becoming a leading provider of clean energy in the region. MIRI: Sarawak is increasingly dedicated to becoming a major clean energy supplier in the region through the development of various energy projects, including the construction of the Combined Cycle Gas Turbine (CCGT) plant in Miri by Petroleum Sarawak Berhad (PETROS).
About Combined Cycle Gas Turbine (CCGT):
A Combined Cycle Gas Turbine (CCGT) is a type of power plant that combines two types of power generation: a gas turbine and a steam turbine. The process involves the following steps:
1. Gas Turbine: Natural gas or another fuel is burned in a gas turbine to produce electricity. This gas turbine operates on the Brayton cycle, where air is compressed, mixed with fuel, and ignited to produce high-temperature gases that spin a turbine, generating electricity.
2. Waste Heat Recovery: The exhaust gases from the gas turbine, which are still hot, are passed through a heat recovery steam generator (HRSG). This captures the remaining heat and uses it to produce steam.
3. Steam Turbine: The steam produced is then used to spin a steam turbine, which is connected to a generator to produce additional electricity. The steam turbine operates on the Rankine cycle, a different thermodynamic process.
The combination of these two cycles (gas and steam) allows CCGTs to achieve much higher efficiency than traditional single-cycle power plants, often exceeding 60%. The efficiency is a result of utilizing both the high-temperature exhaust gases from the gas turbine and the heat recovery system to generate additional power. CCGTs are widely used for power generation due to their efficiency and lower emissions compared to conventional coal-fired plants.
