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Australia-Asia Power Link: Obtaining environmental approval for the world’s largest solar power project

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ESC was commissioned by Sun Cable Australia to conduct Analisis Mengenai Dampak Lingkungan (AMDAL) and Environmental and Social Impact Assessments (ESIA) for the installation of a 2,200 MW HVDC subsea cable through Indonesian territorial waters.

About the Project

Sun Cable is developing the Australia-Asia Power Link (AAPL), a major energy infrastructure project that will supply renewable electricity to Darwin and Singapore via a high voltage direct current (HVDC) transmission system. An integral part of the AAPL provides the key link between a 10GW solar farm in Australia’s Northern Territory through Darwin and into the 400kV Singapore transmission grid.

Sun Cable sought ESC’s expertise to assist in securing the environmental permit and water location permit for the subsea cable installation. In addition to the core regulatory aspects, ESC is tasked to develop ESIA in accordance with the International Finance Corporation (IFC) Performance Standards and Equator Principles.

Our Approach

ESC took a technical approach to facilitate the delivery of all key environmental permitting and provided Sun Cable with a single direct access point to the experts responsible for developing the AMDAL (Environmental Impact Assessments) and ESIA. 

Impact assessments are required by AMDAL and ESIA for pre-construction, construction, operation, and maintenance. ESC conducted the impact assessments in accordance with the AMDAL guidelines in order to identify the significance of the impacts and the mitigation measures that must be implemented. The duration of the impact, whether short or long term, the area of influence, and the number of people or environmental aspects to be impacted all have a role in its significance.

Photo credit: Sun Cable


Through ESC’s extensive experience in offshore projects and deep knowledge of regulatory frameworks, we were able to provide support to Sun Cable in attaining the necessary environmental permits and ESIA development covering Indonesia, Singapore, and Australia.

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