Choosing a supplier for range-extended energy storage systems involves more than comparing technical specifications. Suppliers differ in their engineering support, project management, delivery reliability, and warranty terms. The range-extended system’s complexity, with both battery and generator components, requires a supplier that understands the integration challenges and provides ongoing support during the system lifecycle. INJET HanCang operates as a supplier that offers not only hardware but also design assistance, commissioning, and maintenance planning.
This article describes the selection criteria for a range-extended system supplier, the typical scope of supply, and the performance guarantees that should be considered in procurement.
A qualified supplier should demonstrate a track record of delivering range-extended systems for similar applications. The number of installations, total delivered capacity, and project duration provide indicators of experience.
INJET HanCang has supplied systems for telecommunications, commercial buildings, and industrial facilities, with project documentation available for reference. The company’s experience includes projects in regions with challenging grid conditions, where the range-extended mode was required frequently. Supplier qualification also includes financial stability, which affects the ability to honour warranties and provide long-term support.
The scope of supply varies between suppliers. Some provide only the battery and inverter, leaving the generator selection and integration to the customer or a separate contractor. Others offer a complete integrated system, including the generator, control system, and interconnecting cabling.
INJET HanCang supplies fully integrated systems, including the generator set matched to the inverter capacity and the control logic pre-configured for the site’s load profile. Customisation options include the battery capacity, generator size, enclosure type, and communication protocol. The supplier provides a technical proposal that defines the system boundaries, performance parameters, and interface requirements.
Engineering support covers site assessment, system sizing, and design review. A supplier with in-house engineering capabilities can reduce the project timeline by resolving integration issues before site installation.
INJET HanCang assigns a project engineer to each order, responsible for reviewing site data, producing system drawings, and coordinating with the installation team. The engineer provides guidance on foundation requirements, cable routing, and grounding schemes. During commissioning, the engineer supervises the start-up sequence, verifies the control logic, and performs performance tests.
The delivery timeline affects project scheduling, particularly for installations with fixed completion dates. Suppliers with higher inventory levels and efficient production lines can offer shorter lead times.
INJET HanCang maintains a production schedule that accommodates both standard and customised orders, with lead times defined in the supply agreement. The supplier provides shipping documentation, including packing lists, test reports, and customs declarations for international deliveries. Logistics coordination includes packaging for transport, loading supervision, and delivery notification.
Commissioning involves installing the system, connecting the electrical and communication interfaces, and testing all operating modes. The supplier is typically responsible for providing commissioning engineers and test equipment.
INJET HanCang’s commissioning procedure includes visual inspection, insulation testing, function testing of each component, and system-level performance tests. The site acceptance test confirms that the system meets the specified capacity, efficiency, and response times. The supplier provides a commissioning report that documents the test results and any deviations from specifications.
6. Warranty terms and performance guarantees
Warranty terms for range-extended systems typically cover the battery for a defined number of cycles or years, and the other components for a shorter period. Performance guarantees may include round-trip efficiency, capacity retention, and generator fuel consumption.
INJET HanCang’s warranty covers defects in materials and workmanship, with provisions for capacity degradation beyond a specified threshold. The supplier also offers extended warranty options that include scheduled maintenance and priority service response. Performance guarantees are verified during acceptance testing and at periodic intervals thereafter, with measurement protocols defined in the supply agreement.
After the warranty period, the supplier should provide continued service support, including spare parts supply and technical assistance for troubleshooting.
INJET HanCang maintains a spare parts inventory for systems in operation, with recommended spare parts lists provided to customers at the time of delivery. The supplier offers service contracts that cover scheduled maintenance, emergency call-out, and remote monitoring. The service team is accessible via phone and email for technical queries, with response times defined in the service level agreement.
Conclusion
Selecting a range-extended energy storage system supplier requires evaluation of experience, engineering capability, delivery reliability, and warranty terms. INJET HanCang provides a complete supply package that includes hardware, engineering support, commissioning, and after-sales service, supporting project success from order placement through system decommissioning.