LNT/BAE/1760088

- DEIC-L&T; Precision Engineering & Systems IC
- Bengaluru

- Posted On 14 Jul 2026

- End Date 10 Jan 2027

- Required Experience3 - 6 years

Skills

Knowledge & Posting Location

Engineering

Minimum Qualification

Bachelor of Engineering (BE)

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 solid 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.

📌 BESS Application Engineer (India)
🏢 Larsen and Toubro
📍 India