EHAZOP of power plant concept

MAR Consulting performed an Electrical Hazard and Operability (EHAZOP) study of the electrical systems present in a power plant concept.

Power Plant Concept

The client wished to analyze a new power plant concept based on ultimate generation high-efficiency engines able to run on natural gas and heavy fuel oil. The engines are expected to run mostly on natural gas. Engine-based power generation will provide the flexibility necessary to counterbalance fluctuations caused by intermittent sources of energy into the grid, such as renewable energy sources.

Objectives of the EHAZOP

The EHAZOP focused on hazards potential resulting from the design, operation, and maintenance of the power plant. The main objectives were to:

  • assess and minimize potential hazards presented to personnel, environment, and assets;
  • review the integrity, operability, and maintainability of the electrical systems; and
  • assess any limitations and effects on operability and safety of the overall system.

Methodology followed

The methodology used was based on the HAZOP methodology as per IEC 61882, adapted to electrical systems. The electrical systems were divided into nodes (from HV to LV and DC) and assessed using applicable guidewords and parameters. Note that an EHAZOP is not detailed design review, nor an assessment of compliance with relevant applicable standards but a method to identify hazard and operability issues in a structured manner.

These type of assessments require expert knowledge both on electrical systems but also on safety and reliability engineering. At MAR Consulting we have more than 15 years experience working with electrical, electronic and safety engineering. We have performed multiple of such specialized assessment. We have also provided courses for engineering companies. Feel free to contact us should you require support in performing such study.

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