Lead BESS Electrical Engineer

Lead BESS Electrical Engineer

Reports to: Senior Manager Battery Intelligence

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

o Mechanical team (thermal integration),

o Firmware team (BMS logic),

o Procurement (cost reduction),

o 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.

810 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.