Pathways › Engineers & Technicians
Engineers & Technicians
G99 / G59
G100 Export Limitation
G5/5 Harmonics
BS 7430 Earthing
HV → SAP Track
DIgSILENT / ETAP
Progression roadmap
1) Validate your baseline
LV commissioning basics, protection awareness, BS 7671 familiarity, documentation discipline.
2) Grid compliance & standards
G99 / G59
G100 (ELS)
G5/5 (Harmonics)
P28 / P29
Understand submissions, settings, and witness test expectations.
3) Protection & earthing depth
Coordination, relay settings, fault studies, BS 7430 principles, testing & records.
4) HV competency → SAP track
Switching procedures, safety documents, role responsibility, supervised practice.
5) Tooling & modelling
DIgSILENT / ETAP: load flow, fault, harmonic checks to evidence design and compliance.
Engineer training modules
G99 / G59 Compliance
End-to-end connection rules, settings, submissions, and witness test prep.
G100 Export Limitation
Design & verify compliant ELS and meet DNO requirements.
G5/5 Harmonic Control
Voltage compatibility, THD limits, mitigation methods, reporting.
Earthing & Protection
Coordination, earthing calculations, testing, protection settings.
HV / SAP Competency
Switching, permits, safety docs, supervised assessments to SAP.
DIgSILENT / ETAP
Practical modelling for fault, load flow, harmonics; evidence compliance.
Competency matrix (engineer pathway)
Skill area
LV commissioning & records
Compliance (G99/G100/G5/5)
Protection & earthing
HV operations
Modelling (DIgSILENT/ETAP)
Entry
Ready
In progress
In progress
Not required
Optional
Intermediate
Ready
Ready
Ready
Supervised
Useful
Advanced
Ready
Ready
Ready
SAP level
Preferred
Tools & software
DIgSILENT fault • load flow • harmonics
ETAP modelling • studies
CAD panel & scheme drawings
Test sets relay • injection
Mentoring & placements
Witness test ready
Shadowing routes via partners
• 1:1 mentor check-ins (monthly)
• Portfolio review & evidence mapping
• Project-aligned learning plans
• Introductions to hiring managers
What we look for
• Consistent test records & tidy documentation
• Understanding of DNO expectations
• Safety culture & comms on live sites
• Curiosity with tools (DIgSILENT/ETAP)
CPD evidence
Mapped to pathway milestones
FAQs for engineers
A: It depends on your experience, supervision, and project exposure. Most engineers complete this journey in 18–36 months with structured mentoring and staged competency assessments.
A: It’s not mandatory at the start, but learning power system modelling tools helps you stand out and strengthens your compliance and witness-testing portfolio.
A: You’ll need verifiable LV/HV commissioning experience, understanding of G99, G100, and BS 7430, and tidy documentation to demonstrate readiness for assessments.
A: Absolutely — the pathway is built to integrate with your real-world work. We can tailor learning modules around your ongoing site projects or DNO submissions.
A: Yes. We offer 1:1 mentor sessions, portfolio reviews, and connections to employers and DNO partners who value mapped competency progression.
A: These are UK grid compliance standards. G99 covers generator connections, G100 manages export limitation, and G5/5 ensures harmonic compatibility — all critical for engineers in renewables.
A: Yes — all training modules are designed to fit around full-time work, combining online and on-site practical options with flexible pacing.
- Renewable Pathway
Start Your Renewable Journey Today
- G99 / G100 • HV / SAP • Earthing & Protection
- Trusted UK partners & training providers
- Fast-track guidance for engineers & teams
- Guided by Industry