Senior Grid System Design Engineer

Solarvest; Petaling Jaya; On-site; MYR 111,600 - 167,400; Full time

Job summary

A leading renewable energy company in Petaling Jaya seeks a Senior Grid System Design Engineer to manage advanced mathematical simulations for BESS projects. Responsibilities include BESS dynamic modeling, supplier technical auditing, and conducting grid impact studies. Candidates should have a relevant degree and a minimum of 8 years of experience in utility-scale power systems, with proven successes in TNB approvals. This role is pivotal in representing the company in regulatory meetings and ensuring compliance with technical standards.

Qualifications

• 8+ years in utility-scale power systems is required.
• Direct experience modeling utility-scale BESS projects needed.
• At least 3 successful TNB Grid Impact Study approvals necessary.

Responsibilities

• Develop site-specific BESS models including advanced simulation techniques.
• Review BESS and PPC supplier proposals for compliance with TNB.
• Lead Load Flow, Short Circuit, and Transient Stability 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.