BESS Application Engineer

Job description

**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.