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 SupportSupport 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.
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