Leading the Green Energy Transition, Shaping the Future of Smart Energy
Billion Electric (TWSE: 3027) is a leading provider of energy storage systems and smart energy management solutions in Taiwan. With a leading market position in the deployment of energy storage systems and O&M services throughout Taiwan, the Billion Group is also expanding into international markets such as Japan and Australia—driving energy transformation and green sustainable future.
Fully Integrated Vertical Value Chain
Combining the Group’s core technologies, product R&D, system integration, and O&M services, Billion drives transformation and sustainable development in the energy sector and creates long-term value for both businesses and society.
System Integration
With strong capabilities in engineering, procurement, and construction (EPC), we manage the full process from equipment selection and on-site execution to cross-system coordination—ensuring timely and high-quality project delivery for large-scale and complex applications.
Integrated Design
Our expert engineering and system design teams provide customized energy solutions based on client requirement, focusing on integration, construction efficiency, and operational reliability to enhance project value.
Equipment Sales
By combining in-house brands with products from global partners, we offer a full range of high-quality equipment for energy storage, solar power, and EV charging—designed to meet customized technical specifications and project scalability.
O&M Services
Billion operates Taiwan’s largest local O&M team, supported by a cloud-based smart platform. We provide 24/7 customer service, preventive maintenance, aggregator dispatch coordination, and real-time fault response—ensuring long-term system performance and stable returns for our clients.
Asset Management
Applying AI-driven analytics, cloud-based SCADA, and remote monitoring systems, we help clients monitor equipment health, energy performance, and operational risks in real time—maximizing asset value and operational efficiency.
Yilan Energy Storage Assembly Project
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Grid-Scale Smart Energy Storage System
Billion Group is the fifth private company in Taiwan to be certified for participation in Taipower’s energy trading platform and we possesses the capability to supply grid-connected energy storage systems.
Billion’s self-owned energy storage site has passed the on-site safety testing and VPC certification.
IEC/CNS 62933-5-2
Billion Group upholds the highest safety standards. Our four energy storage sites—Yilan Longde, Toucheng, Lize, and Chiayi SanYuan Chemical—have passed IEC/CNS 62933-5-2 on-site safety testing, certified by the global leading inspection brand Bureau Veritas, ensuring full compliance with grid-connected ESS safety regulations and demonstrating our strong commitment to safety and international standards.
Yilan Longde 2.1MW/1.65MWh
Grid connection date: 2021/10
- Market application: Regulation Reserve dReg 0.25
- Product: SolarEdge High Power battery energy storage system
Yilan Toucheng 2.1MW/1.65MWh
Grid connection date: 2022/06
- Market application: Regulation Reserve dReg 0.25
- Product: SolarEdge High Power battery energy storage system
Yilan Lize 2.5MW/1.82MWh
Grid connection date：2023/01
- Market application：Regulation Reserve dReg 0.25
- Product：SolarEdge High Power battery energy storage system
Chiayi SanYuan 1MW/3MWh
Grid connection date ：2023/03
- Market application：Energy-shifting with Dynamic Regulating Function Reserve, E-dReg
- Product：SolarEdge High Energy battery energy storage system
Grid-connected ESS Installation Safety Regulations
Equipment Safety Specification Content
- For the energy storage subsystem, the industry can choose to follow the US, European regulations or Taiwan standards and submit a qualified test report or verification certificate as the basis for the review.
- After the ESS is built, it is necessary to appoint an impartial third-party organization (e.g. TAF, ILAC accredited laboratory) to conduct IEC 62933-5-2 or UL 9540 on-site test and obtain a qualified report.
The IEC/CNS 62933 voluntary testing is certified by Bureau Veritas, a global leader in testing, inspection, and certification, and verifies compliance with safety standards for grid-connected energy storage systems. Since late 2022, Billion Group’s four energy storage sites—Yilan Longde, Toucheng, and Lize, and Chiayi SanYuan Chemical—have successfully passed IEC/CNS 62933-5-2 on-site testing, covering a total capacity of 10.1 MW.
| Classification | Equipment items | U.S. regulations | European regulations | Taiwan |
|---|---|---|---|---|
| Storage Subsystem | Cell/single battery | UL 1642 or UL 1973 | EC 62619 | CNS 62619 |
| Battery pack/cabinet | UL 1973 | IEC 62619, IEC 63056 | IEC 62619, IEC 63056 | |
| Battery Management System (BMS) | UL 991 or UL 1998 or UL 60730-1 | IEC 61508 or IEC 60730-1 | CNS 60730-1 (Expected to be announced in FY111 Q4) | |
| Energy storage system (on-site test pass report) | UL 9540 (6 tests) | IEC 62933-5-2 (7 tests) | CNS 62933-5-2 (Expected to be announced in FY111 Q2) |
Remark:
- Taipower Substation Procurement Specifications only require safety regulations for outdoor cabinets but do not specify safety regulations for cabinets inside containers.
- Most domestic testing laboratories such as UL, TUV, and AnTek(ATC) have the test ability of battery and module level.
- UL, AnTek(ATC), and NCSIST already have the cabinet-level UL1973 and IEC/CNS 63056 test capability (single cabinet: 180kW, including the burning test).
