High-Voltage & Critical Infrastructure Engineering

Precise Engineering.
Powering The Future.

NexGen Advanced Energy & Substation Consultants (NAESC) is a multi-disciplinary engineering consultancy built for modern critical infrastructure. We deliver HV/EHV substation design, power system studies, and advanced protection systems — for utility grids, Oil & Gas, water, and heavy industry — engineered to IEC and IEEE standards from first layout through compliance verification.

Clients & Partners

Trusted by leading utilities and developers across KSA, Egypt, and the UK.

SEISYSTBEAEGECAFAramcoAl-SharhanANSABPLCEPINECENational Water CompanyRawasi Al-BinaAl-OjamieGiza Systems
45+
Projects Delivered
EHV·HV·MV
Design Voltage Classes
3
Regions: GCC · Europe · Africa
100%
IEC Compliant
01 · Core Services
EHV / HV / MV · GIS / AIS

HV Substation Full Design

Full scope design for GIS and AIS substations from 13.8kV to 380kV — electrical, civil, mechanical, and architectural disciplines under one roof.

IEC 62271-203IEC 61936-1SEC Standards
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Relay Settings · Coordination · Arc Flash

Special Studies

Relay settings calculations, protection coordination studies, arc flash studies, and fault analysis.

IEC 60909IEC 60255IEEE 1584
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HV Cable Systems

Underground Cable Design

High-voltage cable system design including conductor sizing, thermal rating, route planning, joint bay layouts, cable protection studies, and civil trench interface.

IEC 60287IEC 60840IEC 62067
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02 · Why NAESC
Engineered

Structured deliverables, traceable calculations, and rigorous analysis from feasibility through detailed design.

Grounded

Deep domain expertise in design philosophy, engineering standards, and project management.

Legible

Clear documentation, bankable technical offers, and drawing packages that contractors can build from.

Consistent

One quality framework applied to every project — substation, P&C, OHL, or cable — every single time.

03 · Scope of Practice
Scope of Practice
HV Substation Design
380kV · 275kV · 132kV · 115kV · 33kV · 13.8kV
Protection & Control
IEC 61850
SCADA/SAS Engineering
SAS · RTU · IEC 61850
Overhead Line Design
Transmission & Distribution
Underground Cable Design
HV Cable Systems
Power System Studies
Load Flow · Harmonic · Fault · Arc Flash · Relay Settings
Ready to start your next project?

Let's engineer the right solution.

Send us your project requirements and we'll respond with a scoped technical proposal within 48 hours.

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