Greater Changhua 2b and 4 will be located between 35 and 60km off the Changhua coast. Credit: Ørsted A/S.

The Taiwan Cogeneration Corporation (TCC) has secured an engineering, procurement and construction (EPC) contract from Danish energy giant Ørsted to develop the onshore substation for the Greater Changhua 2b and 4 offshore wind farms.

Greater Changhua 2b and 4 will have a total capacity of 920MW and will be located between 35 and 60km off the Changhua coast.

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This contract follows Ørsted’s final investment decision in March 2023.

TCC’s subsidiary, Star Energy Corporation, has been tasked with all the onshore deliverables including the transmission system’s design, engineering, procurement, construction and commissioning.

The scope of the EPC contract includes building a substation using pre-cast methods to maintain quality, all on-site health, safety and environment management and a high voltage 345kV electrical system.

The electrical system will then connect with Taipower’s grid.

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Ørsted Taiwan chairperson Christy Wang stated: “We are delighted to work with TCC and Star Energy again, and see them growing into a capable and competent supplier through collaborating with Ørsted.

“The two companies successfully delivered the world-class transmission system for Taiwan’s first large-scale offshore wind farm, marking an unprecedented achievement in the industry. The latest contract will further strengthen their capabilities and development and create business opportunities for local communities.”

Ørsted won Taiwan’s competitive price-based auction to build the Greater Changhua 2b and 4 offshore wind farms in June 2018.

Onshore construction is expected to begin in 2023 with the fabrication of components and is scheduled for completion by the end of 2025.

The company also signed a corporate power purchase agreement with the Taiwan Semiconductor Manufacturing Company in July 2020, to supply the clean power generated from the wind farms.

Taiwan Cogeneration Corporation chairman Huang Shun-I stated: “Our collaboration with Ørsted provided valuable learnings on international offshore wind QHSE standards.

“We are proud of our remarkable safety record of 1.7 million hours without a recordable incident for Greater Changhua 1 and 2a. We will continue to strive for excellence to complete the project on time, on budget and safely.”