# ADB Approves US$63.44 Million for 250 MW/500 MWh Grid-Forming BESS in Cambodia
*Author: Eternalgy Market Intelligence Team | Category: news | Published: Fri Jun 26 2026 00:00:00 GMT+0000 (Coordinated Universal Time)*

## English

* **Asian Development Bank approved US$63.44 million** in financing on 24 June 2026 for a 250 MW/500 MWh grid-forming battery energy storage system (BESS) at Takeo substation in southern Cambodia
* **Financing structure**: US$40 million ADB concessional loan, US$5 million Asian Development Fund grant, and US$18.44 million co-financing from the Green Climate Fund and UK Government via the ASEAN Catalytic Green Finance Facility (ACGF)
* **Developer**: Royal Government of Cambodia through state utility Electricité du Cambodge (EDC), with procurement bidding open until 20 August 2026
* **Grid-forming (GFM) inverter technology** will provide frequency control services traditionally performed by thermal and hydro rotating mass, stabilising Cambodia's grid as variable renewable energy integration increases
* **Applications**: Integrating variable renewable energy, facilitating cross-border power trade with Vietnam, and supporting industrial zones, agricultural processing, and urban districts
* **Cambodia targets 70% renewable energy capacity by 2030** under its 2022-2040 Power Development Master Plan, already at 63% (largely hydroelectric), ahead of the ASEAN-wide 35% target
* **Cambodia's first grid-forming BESS** (500 MW/1,000 MWh) entered operation in March 2026 in Pursat province, developed by SchneiTec with Huawei technology

## 中文

* **亚洲开发银行于2026年6月24日批准6,344万美元融资**，用于在柬埔寨南部茶胶省变电站建设250兆瓦/500兆瓦时构网型电池储能系统（BESS）
* **融资结构**：亚行4,000万美元优惠贷款、亚洲开发基金500万美元赠款、以及绿色气候基金和英国政府通过东盟催化绿色融资机制（ACGF）提供的1,844万美元联合融资
* **开发商**：柬埔寨王国政府通过国家电力公司Electricité du Cambodge（EDC），招标截止日期为2026年8月20日
* **构网型（GFM）逆变器技术**将提供传统上由火力和水力旋转质量承担的频率控制服务，随着可再生能源并网增加稳定柬埔寨电网
* **应用场景**：整合可再生能源、促进与越南的跨境电力贸易、支持工业区、农产品加工和城市区域
* **柬埔寨目标到2030年实现70%可再生能源装机容量**，根据2022-2040年电力发展总体规划，目前已达63%（主要为水电），超过东盟整体35%的目标
* **柬埔寨首座构网型BESS**（500兆瓦/1,000兆瓦时）已于2026年3月在马德望省投入运营，由SchneiTec开发，采用华为技术