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BRL-ENG-02 · Engineering & Design
Lead Engineer, BESS System Integration
Energy Storage Pune (Head Office) · On-site 9–13 years · Lead
Lead the engineering of grid-scale battery energy storage systems, standalone and co-located with solar and wind, from cell chemistry choice to grid code compliance. You set BARREL's BESS design standard and make sure every system is safe, bankable and able to earn under the tender's availability and round-trip efficiency terms.
Scope of work
- Define BARREL's reference architecture for containerised LFP BESS: DC block, PCS, MV skid, auxiliaries and controls.
- Size energy and power capacity for each use case, including peak shifting, firm and dispatchable RE, frequency response and arbitrage.
- Model degradation and augmentation plans so the contracted capacity holds across the full contract term.
- Specify and evaluate battery containers, PCS, energy management systems and fire protection from shortlisted integrators.
- Lead the fire and explosion safety design with HSE: spacing, deflagration venting, gas detection and suppression.
- Own the BESS control philosophy and its interface with the plant controller and the SCADA.
- Write and witness factory acceptance tests and site acceptance tests, including capacity and round-trip efficiency tests.
- Prepare the grid connectivity study inputs and demonstrate compliance for charging and discharging modes.
- Mentor a team of electrical and controls engineers working on storage.
- Build storage sizing tools and libraries into BARREL OS and PIP for bids and portfolio planning.
Technical description
- BESS standards: IEC 62933 series (safety, performance, environmental), IEC 62619 for industrial lithium cells and IEC 62485 for installation.
- Fire safety: UL 9540 system listing, UL 9540A cell-to-unit test data and NFPA 855 installation and separation requirements.
- PCS and grid compliance with the CEA Technical Standards for Connectivity to the Grid and the CEA provisions for energy storage connectivity.
- Battery management system and EMS design, state-of-charge and state-of-health estimation, and cell balancing behaviour.
- Degradation modelling against cycling, depth of discharge, C-rate and thermal conditions, with augmentation scheduling.
- Controls communication over IEC 61850, Modbus TCP and IEC 60870-5-104 to the plant controller and the load despatch centre.
- Dynamic and harmonic studies in PSS/E or DIgSILENT PowerFactory, including grid-forming inverter behaviour where specified.
Commercial description
- Hit the tender's guaranteed availability and round-trip efficiency, which drive monthly payments and penalties.
- Compare suppliers on lifetime cost per usable MWh, including augmentation and O&M, not only price per kWh.
- Negotiate technical schedules, performance guarantees and liquidated damages in integrator contracts with the commercial team.
- Keep warranty conditions compatible with the dispatch profile the trading desk plans to run.
- Report design risk and cost exposure to the Head of Engineering at each project gate.
Skills required
- Grid-scale lithium-ion BESS system design.
- Battery degradation and augmentation modelling.
- PCS and inverter control and grid compliance.
- Fire and explosion hazard engineering for battery containers.
- FAT and SAT test procedure writing and witnessing.
- Technical evaluation of integrator bids.
- Plant controller and EMS integration.
- Leading and reviewing a small engineering team.
- Python or MATLAB for sizing and dispatch analysis.
Talent we look for
- You treat battery safety as non-negotiable and say so early.
- You can read a cell datasheet and spot what it leaves out.
- You build standards that other engineers actually want to use.
- You stay curious about new chemistries without chasing hype.
- You give your team room and still hold the line on quality.
Qualifications
- B.E./B.Tech in Electrical, Electronics or Power Engineering; Master's in Power Electronics or Energy Systems preferred.
- Nine or more years in power engineering, with at least four on grid-scale BESS projects of 10 MWh or larger.
- Hands-on involvement in at least one BESS FAT or SAT and commissioning.
- Training in NFPA 855 or UL 9540A interpretation is an advantage.
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