Longi Green Energy Technology Co. Ltd. (Longi) and Pertamina New & Renewable Energy (Pertamina NRE) have announced the construction of a 1.6 GW solar plant in Deltamas, West Java, Indonesia. This project aims to bolster the local photovoltaic supply chain and meet the growing demand outlined in Indonesia’s power plan.
The facility will utilize Hybrid Passivated Back Contact 2.0 (HPBC 2.0) technology, which is expected to enhance solar panel efficiency with a conversion rate exceeding 24%. Preparatory work for the site is scheduled to commence by the end of June 2025, aligning with the anticipated regional demand for solar energy.
This investment represents Longi’s initial major industrial presence in Southeast Asia. Pertamina NRE, the renewable energy arm of Indonesia’s state-owned oil company, will provide essential market insights and knowledge of local regulatory procedures. The partnership aims to meet the Domestic Component Level (Tingkat Komponen Dalam Negeri, TKDN) requirements set by the Indonesian government, which has recently tightened regulations to promote local production and reduce reliance on imports, particularly from Chinese manufacturers.
The Deltamas facility is expected to cover approximately 25 hectares and employ nearly 800 technicians, contributing to the local economy. Although the exact investment amount has not been disclosed, some equipment will be sourced from Longi’s existing plants in China.
Indonesia’s Rencana Usaha Penyediaan Tenaga Listrik (RUPTL) 2025-2034 targets 17.1 GW of new photovoltaic installations over the next decade. The 1.6 GW capacity from the Deltamas plant will form a significant part of this plan, potentially fulfilling around 10% of the overall needs outlined in the energy roadmap. Longi anticipates a gradual ramp-up of production to align with the increasing demand for solar energy in the region.
Dennis She, vice president of Longi, emphasized the importance of local production, stating that it will help reduce costs and create high-value jobs throughout the community. Pertamina NRE aims for the commercial start of the plant before the end of next year, pending the finalization of environmental permits. The pace of construction will be a key indicator of Indonesia’s ability to support its ambitious renewable energy goals.
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