BESS Engineer / BESS Manager
Pune, IndiaHybridFull-timeMid · 5-10 years
About this role
Job Summary
The BESS Engineer / Manager will be responsible for energy simulation and optimal sizing, technology selection and vendor evaluation, system design & engineering from conceptual to detailed design engineering stage, and technical support to Business Development (BD) during proposal development. The role ensures delivery of technically robust, compliant, and cost-optimized BESS solutions across utility-scale and C&I projects.
Key Responsibilities
1. Energy Simulation & Optimal BESS Sizing
• Perform energy simulations and operational modeling to determine optimal BESS
MW/MWh configuration.
• Analyze load profiles, renewable generation data, tariffs, grid constraints, and use
cases.
• Define and assess dispatch strategies such as peak shaving, arbitrage, renewable
smoothing, and backup.
• Consider efficiency, degradation, SOC limits, cycling constraints, and lifecycle
performance.
• Prepare techno-economic sizing studies, simulation reports, and
recommendations.
2. Technology Selection & Vendor Evaluation
• Lead technology selection for battery systems, PCS, BMS, EMS, and auxiliary
equipment.
• Perform technical evaluation of BESS and PCS vendors, reviewing:
o Battery chemistry, architecture, thermal and safety design
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o PCS topology, efficiency, grid-forming / grid-following capability
o BMS, EMS, SCADA integration and communication
• Ensure compliance with project specifications, grid codes, IEC / IEEE standards,
and safety norms.
• Compare vendors on performance, degradation assumptions, warranties,
availability, and lifecycle energy throughput.
• Support technical bid evaluation, clarifications, and vendor recommendations.
3. System Design & Engineering (Conceptual to Detailed)
• Develop and review end-to-end BESS system design from conceptual through
detailed engineering.
• Define BESS architecture, electrical ratings, protection philosophy, and grid
interconnection design.
• Prepare / review key engineering deliverables including:
- AC & DC Single Line Diagrams (SLDs)
- General Arrangement (GA) drawings
- Cabling, earthing, lightning protection, and protection & control schemes
• Ensure coordination between BMS, PCS, EMS, SCADA, and grid requirements.
• Participate in design reviews, safety and risk assessments, and technical approvals.
4. Support to Business Development (BD) – Proposals
• Provide technical inputs for RFQs, RFPs, and project proposals.
• Develop conceptual designs, system sizing, technical write-ups, and compliance matrices.
• Support costing assumptions, losses, efficiencies, and performance guarantees.
• Participate in customer technical discussions, presentations, and clarifications.
Key Skills & Competencies
• Strong understanding of BESS technology, PCS integration, and power systems
• Experience in energy modeling, system design, and vendor evaluation
• Knowledge of lithium-ion battery behavior, degradation, and safety systems
• Familiarity with IS / IEC / IEEE standards, grid codes, protection systems, and electrical safety standards
• Ability to interpret and review technical vendor documentation
• Strong technical communication and cross-functional coordination skills
Tools & Software
• Energy simulation tools: Python / MATLAB / Homer / Excel-based models (any equivalent)
• Electrical design tools: AutoCAD
• Power system study tools (preferred): ETAP / DigSILENT / PSCAD
Education
• B.E. / B.Tech in Electrical Engineering (Mandatory)
• M.Tech in Power Systems / Renewable Energy (Preferred)
Preferred Experience
• Utility-scale or C&I BESS project execution
• Renewable + BESS hybrid systems
• Interaction with global BESS & PCS OEM