Senior Grid System Design Engineer

Solarvest (Vietnam) Company Limited; Petaling Jaya; On-site; MYR 50,000 - 70,000; Full time

Job summary

A leading renewable energy firm is looking for a Senior Grid System Design Engineer in Petaling Jaya, Malaysia. This role involves advanced mathematical simulations for BESS as well as supplier auditing. The ideal candidate will have a Bachelor’s or Master’s degree in Electrical Engineering and at least 8 years of experience in utility-scale power systems with demonstrated knowledge in BESS modeling and TNB impact studies. This position offers an opportunity to influence key projects in the energy sector.

Qualifications

• Minimum 8+ years in utility-scale power systems.
• Direct experience modeling at least two utility-scale BESS projects (min 10MWh+) in a professional simulation environment.
• At least 3 successful TNB Grid Impact Study (GIS) approvals.

Responsibilities

• Develop site-specific BESS models including Inverters (PCS), BMS, and PPC.
• Critically review BESS and PPC supplier proposals.
• Lead the execution of Load Flow, Short Circuit, and Transient Stability studies.
• Serve as the lead technical representative at TNB GSO meetings.
• Perform detailed harmonic resonance studies.

Skills

BESS Dynamic Modeling

Supplier Technical Auditing

Grid Impact Studies

Harmonic & Power Quality Validation

Education

Bachelor’s or Master’s Degree in Electrical Engineering

Job description

The Senior Grid System Design Engineer is the technical "Gatekeeper" for our BESS pipeline. This role carries dual responsibility: performing the advanced mathematical simulations required for TNB approval and acting as the primary technical auditor for BESS and PPC hardware suppliers.

Key Responsibilities

• BESS Dynamic Modeling: Develop site-specific BESS models including Inverters (PCS), Battery Management Systems (BMS), and Power Plant Controllers (PPC). You must accurately model GridForming (GFM) logic, Virtual Inertia, and sub-50ms Fast Frequency Response (FFR).
• Supplier Technical Auditing: Critically review BESS and PPC supplier proposals. Verify if their stated ramp rates, Round Trip Efficiency (RTE), and control loop latencies are mathematically achievable and compliant with TNB requirements.
• Grid Impact Studies: Lead the execution of Load Flow, Short Circuit, and Transient Stability studies. Must specifically address Weak Grid ($SCR < 2.0$) challenges and ensure the BESS does not cause sub-synchronous oscillations.
• TNB Regulatory Representative: Serve as the lead technical representative at TNB GSO (EMS Unit) meetings. Defend simulation results and manage end-to-end Interconnection Agreement (IA) process.
• Harmonic & Power Quality Validation: Perform detailed harmonic resonance studies to identify if a supplier's inverter switching frequency will clash with the local TNB grid impedance.

Qualifications

• Bachelor’s or Master’s Degree in Electrical Engineering (Power Systems or Power Electronics focus).
• Minimum 8+ years in utility-scale power systems.
• Direct experience modeling at least two utility-scale BESS projects (min 10MWh+) in a professional simulation environment.
• At least 3 successful TNB Grid Impact Study (GIS) approvals.
• Professional Engineer (Ir.) or a high-level Graduate Engineer registered with the Board of Engineers Malaysia (BEM).
• Ability to demonstrate prior experience in rejecting or correcting supplier technical designs based on simulation findings.