Electrical Engineering
Power system design, transmission and distribution, substation engineering, lighting, earthing and smart energy systems — delivered to international standards across the Kingdom.
The opportunity.
Electrical engineering is the backbone of every major infrastructure project — from the LV distribution boards inside a desalination plant to the HV transmission lines connecting a solar farm to the national grid. Getting it wrong is expensive; getting it right requires specialist expertise aligned with Saudi SEC requirements and international standards.
WPEC's electrical engineering consultancy spans the full power system hierarchy — from load calculations and distribution design through substation engineering, overhead transmission line design, grid connection studies and smart energy management systems. We bring together power system design, lighting, earthing, renewable integration and backup power expertise under one independent consultancy — free of equipment supplier affiliations.
Capabilities.
Power System Design
- Power system design (LV, MV, HV)
- Electrical load calculations and demand forecasting
- Single line diagram (SLD) development
- Short-circuit and load flow analysis
- Protection coordination studies
- Power system simulation (ETAP, DIgSILENT PowerFactory)
Transmission & Distribution
- Electrical distribution network design
- Substation design and equipment specification
- Grid connection studies and SEC liaison
- Overhead transmission line (OHTL) design
- Underground cable sizing and routing
- Switchgear and transformer specifications
Electrical Infrastructure
- Lighting design — indoor, outdoor and street lighting
- Earthing and lightning protection system design
- Backup power systems — diesel generators and UPS
- Power quality analysis and harmonic studies
- Energy audits and efficiency assessments
- Instrumentation and control (I&C) design
Smart & Renewable Integration
- Renewable energy integration (solar PV, hybrid systems)
- Battery energy storage system (BESS) integration
- Smart grid and SCADA system design
- Energy management system (EMS) specification
- Metering and power monitoring system design
- Electric vehicle (EV) charging infrastructure
Our methodology.
Load Assessment
Comprehensive electrical load schedule development — connected load, demand factor, diversity factor and future growth — establishing the design basis for all downstream electrical work.
System Architecture
Power system architecture selection — voltage levels, distribution topology, protection philosophy and equipment strategy — optimised for reliability, safety and whole-life cost.
Network Studies
Load flow, short-circuit, protection coordination, power quality and harmonic analyses using ETAP or DIgSILENT to validate system performance before detailed design.
Detailed Design
Full electrical design package — SLDs, general arrangement drawings, cable schedules, equipment data sheets and installation specifications — to IEC and SEC standards.
Procurement Review
Vendor drawing review, technical bid evaluation, FAT witnessing and material approval — ensuring specified equipment performs to design intent.
Commissioning & Energisation
Pre-commissioning checks, loop testing, protection relay testing and staged energisation support to ensure safe, compliant system start-up.
Tools & software.
ETAP
Power system load flow, short circuit and protection coordination
DIgSILENT PowerFactory
Advanced power system simulation and grid code compliance
Dialux / AGi32
Indoor and outdoor lighting design and photometric calculations
AutoCAD / EPLAN
Electrical schematic, SLD and panel design
SEC Grid Code
Saudi Electricity Company connection standards and compliance
IEC 60364 / 61439
Low-voltage electrical installation and switchboard standards
Related services.
Have a project in mind?
Let's engineer it.
From feasibility to commissioning — our consultants partner with utilities, developers and government clients across the Kingdom.