Individual Studies Available
While we specialise in complete G99 compliance packages, we also offer individual power system studies for projects where specific analysis is needed. This includes:
- Projects with partial study packages requiring gap-fill analysis
- Industrial and commercial power systems outside G99 scope
- Due diligence and technical review for project acquisitions
- Design verification and independent checking
- Troubleshooting and problem investigation
All studies are completed using industry-standard tools, primarily DIgSILENT PowerFactory, and delivered as comprehensive technical reports suitable for DNO submission or internal use.
Available Studies
Load Flow Analysis
Steady-state power flow calculations to determine reactive power capability and verify compliance with DNO active/reactive power (PQ/UQ) requirements.
Short Circuit Studies
Fault level calculations to determine equipment ratings, protection device selection, and network fault contribution from connected generation.
Protection Coordination
Grading studies to ensure correct fault detection, discrimination, and clearance times across protection devices from generation to grid interface.
P28 Voltage Assessment
Analysis of voltage fluctuations caused by generation output changes per ENA Engineering Recommendation P28.
G5/5 Harmonic Studies
Harmonic distortion analysis per ENA Engineering Recommendation G5/5 including emission limits and filter design recommendations.
Dynamic Stability
Time-domain simulations assessing transient response to network disturbances, fault ride-through, and control system performance.
Reactive Power Studies
Assessment of reactive power capability, voltage control performance, and compliance with Grid Code reactive requirements.
Arc Flash Analysis
Incident energy calculations and PPE category determination for electrical safety compliance on HV and LV systems.
Software & Tools
We use industry-standard software accepted by UK DNOs and network operators.
Our proprietary EasyCableSizing software enables accurate cable design and thermal calculations to IEC standards.
Frequently Asked Questions
Can I commission individual studies rather than a full package?
Yes. While we offer complete G99 packages, individual studies are available when you need specific analysis only. This is common for projects with partial study packages from other consultants, or for non-G99 applications.
What software do you use?
We primarily use DIgSILENT PowerFactory for power system analysis, which is widely accepted by UK DNOs. We also use specialist tools for cable sizing, protection coordination, and harmonic analysis as required.
Do you work on industrial power systems?
Yes. While our primary focus is grid connections for renewable generation, we also undertake studies for industrial power systems including load flow, protection coordination, and arc flash analysis.
Can you review or verify studies completed by others?
Yes. We provide independent technical review services for studies completed by other consultants or in-house teams. This is common for due diligence, project acquisition, or quality assurance purposes.
Discuss Your Study Requirements
Tell us about your project and the studies you need. We'll confirm scope and provide a fee proposal.