# BESS, EMS & Microgrid Expert

> Techconnect.id · Jakarta, Indonesia (Hybrid) · Full-time · Posted 2026-11-13

**Workplace:** hybrid

**Department:** Group Companies

## Description

**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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## Apply

[Apply at Techconnect.id](https://apply.workable.com/techconnect/j/47D1468F74/apply)

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