BESS Engineer

Main Responsibility

• Act as technical owner of all BESS equipment analyses during the phases of basic engineering, RFP preparation, supplier evaluation, and contract negotiation.
• Take full technical accountability for recommendations provided to management and procurement, ensuring traceability, justification, and alignment with project objectives.
• Lead technical and commercial evaluations of OEM (Original Equipment Manufacturer) proposals — including PCS, EMS, BMS, DC Blocks, transformers, and auxiliary systems — ensuring full compliance with Jinko Power standards and project requirements.
• Conduct BESS performance analyses , including round-trip efficiency, degradation modelling, DoD and C-rate impact, temperature control, and lifetime estimation under different operational strategies.
• Support Procurement in supplier comparison, scoring, and clarifications , providing clear, data-based recommendations on technical and performance trade-offs.
• Identify and flag potential technical, operational, or warranty risks in supplier proposals, ensuring mitigation measures are addressed before contract signature.
• Participate actively in technical negotiations and contract closure , ensuring that performance guarantees, testing protocols, and interface requirements are clearly defined and traceable.
• Maintain and strengthen relationships with OEMs (Huawei, Sungrow, BYD, CATL, EVE, Gotion, etc.), ensuring effective coordination, timely follow-up, and continuous technical communication throughout design, procurement, and construction.
• Ensure full awareness and application of international standards and regulations applicable to BESS and PCS equipment (IEC, IEEE, UL, NFPA, EN, etc.), including safety, grid compliance, and control logic requirements.
• Evaluate and review system control and communication architectures (BMS, EMS, SCADA, PPC), ensuring functional integration, data exchange integrity, and cybersecurity alignment.
• Review and validate engineering documentation (conceptual, basic, and detailed design), ensuring constructability and technical consistency.
• Coordinate closely with Construction during execution and commissioning , participating in FATs, SATs, and site tests to verify compliance and system performance.
• Prepare technical reports, comparative analyses, risk assessments, and design recommendations for management decision-making.

Requirements

Preferred Profile

Professional Skills