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.
• 8+ 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.

Skills Required
Financial Modelling