We are looking for a hands-on, execution-focused Lead BESS Electrical Engineer who can design, integrate, validate, and commission complete BESS systems from battery pack to grid interconnection.
Core responsibilities
1. End-to-End Electrical Architecture
- Define and review complete BESS electrical topology include DC bus architecture, String sizing & C-rate validation, PCS integration, Auxiliary supply systems.
- Develop SLDs, GA layouts, Protection schemes, Cable schedules
- Make rapid engineering trade-offs between cost, performance, and scalability.
2. PCS & Inverter Technical Leadership
- Evaluate and integrate PCS from various vendors.
- Define Grid-forming / Grid-following strategy, Reactive power & frequency control, Black start capability (if applicable)
- Lead FAT, SAT, and performance validation.
3. Battery Pack & DC System Integration
- Work closely with battery OEMs (LFP chemistry).
- Validate DC current limits, Fuse & contactor selection, Pre-charge design, Arc flash considerations.
- Own BMS-PCS communication - CAN / Modbus TCP & Control logic validation
- Ensure compliance with electrical & safety standards.
4. Power Electronics Oversight
- Review inverter topology 2-level / 3-level, IGBT / SiC based systems
- Evaluate Switching losses, Harmonics (THD), Thermal constraints
- Support performance tuning during commissioning.
5. Electrical Protection & Grid Compliance
- Conduct Protection coordination, short circuit studies, Load flow studies
- Interface with DISCOM / utility approvals.
- Ensure compliance with IEC / IEEE grid standards, Local regulatory requirements.
6. Installation & Commissioning (Hands-On)
- Supervise cable laying & termination, switchgear installation, transformer integration
- Lead Insulation tests, Relay testing, Functional system tests, Grid synchronization
- Resolve site issues in real time.
7. Cross-Functional Execution
Work with
- Mechanical team (thermal integration),
- Firmware team (BMS logic),
- Procurement (cost reduction),
- Data (Cell and pack testing, system integration tests with inverter).
- Support technical customer discussions.
Desired Skills
- Strong understanding of BESS system architecture, PCS & inverter integration, Battery pack DC engineering, LV/HV systems up to 33 kV
- Hands-on experience commissioning real projects.
- Comfortable reviewing relay settings and grid compliance.
Qualifications
- B.E / B.Tech / M.Tech in Electrical / Power Electronics.
- 8–10 years of experience in Utility-scale BESS, Solar + Storage hybrid systems, Power electronics design.
- Hands-on experience with PSCAD / ETAP / DIgSILENT / AutoCAD / EPLAN
- Strong knowledge of grid codes and protection systems.
