BESS, EMS & Microgrid Expert

Feasibility and system design

• Lead feasibility studies for BESS and microgrid opportunities: load profiling, tariff and demand-charge analysis, diesel displacement, and techno-economic modelling (LCOE / LCOS, IRR, payback).
• Size BESS (power and energy), PV and genset capacity for hybrid and off-grid systems, including degradation, augmentation strategy and end-of-life planning.
• Define system architecture: AC- vs DC-coupled, PCS selection, grid-following vs grid-forming operation, black-start and islanding capability.
• Specify EMS / microgrid controller functions: peak shaving, load shifting, PV smoothing and ramp-rate control, spinning-reserve replacement, frequency and voltage support, and genset dispatch optimization.

Grid integration and compliance

• Lead grid-connection and interconnection studies (load flow, short circuit, protection coordination, dynamic/stability studies) and ensure compliance with PLN grid code and SPLN requirements.
• Ensure designs comply with applicable standards for battery safety and fire protection (e.g. IEC 62933, IEC 62619, UL 9540 / 9540A, NFPA 855) and Indonesian K3 / electrical safety regulations.

Procurement and vendor management

• Prepare technical specifications and RFQs for battery systems, PCS, EMS/controllers, transformers and switchgear.
• Run technical bid evaluations and vendor due diligence (cell supplier, factory audits, warranty and performance guarantee terms, LTSA/O&M scope).
• Negotiate and review technical schedules of supply and EPC contracts, including availability, round-trip efficiency and capacity-retention guarantees.

Operations and performance

• Define performance KPIs (availability, Performance Ratio, Energy Absorption, RTE, SoH, diesel saved, curtailment, BESS Utilization) and monitoring/SCADA requirements.
• Analyse operational data to optimise dispatch strategy, track degradation against warranty curves, and support warranty claims.

Business development and team support

• Support BD and proposal teams with technical solutions, budgetary pricing and client presentations for C&I, mining, industrial and island-grid clients.
• Build internal BESS capability: templates, design standards, lessons learned, and mentoring of junior engineers.

Expected deliverables

• Feasibility and sizing reports with techno-economic models for each opportunity.
• Basic and detailed design packages: SLDs, protection philosophy, layouts, control and EMS functional specifications.
• Grid-connection study reports and PLN submission packages.
• Technical specifications, RFQ packages and bid evaluation reports.
• Fire and hazard risk assessments and safety design basis.
• FAT/SAT and commissioning test procedures and reports.
• Performance and degradation reports for operating assets.
• In the first 12 months: an in-house BESS design and procurement standard for the company.

Requirements

• Minimum 3 years of direct, hands-on BESS and microgrid experience, within a total of roughly 6+ years in power systems, renewable energy or electrical engineering.
• Delivered at least two BESS or hybrid microgrid projects from design through commissioning (ideally ≥1 MWh each), with a clear personal role in sizing, design or commissioning.
• Experience with at least one of: solar-plus-storage hybrid, diesel-hybrid / off-grid microgrid, or C&I behind-the-meter BESS.

Benefits

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