BESS Application Engineer

Application Engineer – Battery Energy Storage Systems (BESS) Location : Bangalore The Application Engineer – BESS will be responsible for technical solution development, system sizing, proposal support, customer engagement, and application engineering for Utility Scale and Commercial & Industrial (C&I) Battery Energy Storage Systems.

The role requires strong knowledge of BESS sizing methodologies, renewable energy integration, grid services, power conversion systems (PCS), EMS, battery technologies, and project techno-commercial evaluation.

The engineer will work closely with Sales, Product Management, Engineering, EPC, and Customers to develop optimized BESS solutions for various applications.

Key Responsibilities BESS Solution Design & Sizing

• Perform BESS sizing based on customer requirements and project use cases.

• Develop technical solutions for:

• Peak Shaving

• Load Shifting

• Demand Charge Management

• Solar + Storage , Wind + Storage

• Backup Power

• Microgrid Applications

• EV Charging Support

• Frequency Regulation

• Grid Ancillary Services

• Renewable Firming

• Capacity Firming

• Energy Arbitrage

• Black Start Applications

• Perform energy and power calculations considering:

• Load Profiles

• Solar/Wind Generation Profiles

• Battery Degradation

• Round Trip Efficiency

• Availability Requirements

• Future Expansion Requirements

• Understand Grid Code requirements and utility interconnection requirements.

• Analyse customer load data and electricity tariff structures.

• Develop business cases with Perform ROI, IRR, Payback Period and LCOE analysis.

• Proposal & Customer Support

• Support sales teams during customer discussions.

• Prepare: Technical Proposals, Compliance Matrix, Single Line Diagrams (SLD) System Architecture Drawings. Bill of Materials (BOM), Technical Datasheets

• Conduct technical presentations and customer workshops.

System Engineering

• Define system architecture including:

• Battery Containers

• PCS/Inverters

• MV Stations

• EMS/SCADA

• HVAC

• Fire Suppression System

• Coordinate with engineering teams for project execution.

Simulation & Analysis support

• Perform:

• Load Flow Studies

• Energy Yield Analysis

• Battery Degradation Studies

• System Efficiency Calculations

• Financial Modelling

• Support grid interconnection studies where required.

Market & Technology Analysis

• Track industry trends in:

• Lithium-Ion Technologies (LFP, NMC)

• Flow Batteries

• Grid Forming Inverters

• Hybrid Renewable Systems

• Benchmark competitor solutions and market offerings.

Power Systems understanding

• Power System Analysis
• Grid Integration
• Substation Fundamentals
• Protection Coordination
• MV/LV Distribution Systems

Preferred Experience

• B.E./ M.Tech in Electrical, Electronics, Power Electronics, or related field.
• 3-5 years in Renewable Energy, Power Electronics, Energy Storage, Solar EPC, Utility Grid Projects, or Microgrid Solutions.
• Hands-on experience sizing systems from 500 kWh C&I projects up to 500+ MWh Utility-scale BESS projects.
• Experience with DC-coupled and AC-coupled Solar + BESS architectures.
• Exposure to PCS technologies (String PCS and Central PCS).
• Experience in techno-commercial evaluation and bid support for utility tenders.

Desired Competencies

• Strong analytical and problem-solving skills.
• Customer-facing technical presentation capability.
• Techno-commercial proposal preparation.
• Cross-functional coordination.
• Excellent communication and report-writing skills.