Power System Studies That Drive Safe and Compliant Network Connections
Gridserve delivers comprehensive power system studies for clients connecting generation, storage, and large load facilities to Australia’s electricity networks. Whether you are developing a utility-scale solar farm, a battery energy storage system, a data centre, or an industrial facility, our engineering team provides the rigorous analysis required to satisfy network operator requirements, meet regulatory obligations, and support safe, stable operation from day one.
Connection & compliance studies
Full suite of power system studies required for network connection applications under the National Electricity Rules (NER) and AEMO requirements.
Generation & storage projects
Specialised studies for BESS, solar farms, wind, and hybrid projects — covering stability, protection, and grid code compliance from feasibility through commissioning.
Load & industrial studies
Power quality, load flow, and fault analysis for data centres, mines, industrial facilities, and large commercial loads connecting to the grid.
Gridserve performs power system studies in-house, delivering analysis that is technically rigorous, clearly documented, and aligned with the requirements of Australian network service providers and the Australian Energy Market Operator (AEMO). Our studies support every stage of a project — from early-stage feasibility and connection enquiry through to detailed design, protection coordination, and commissioning verification.
Service Streams
Load flow & voltage analysis
Load flow studies form the foundation of any power system analysis. Gridserve performs steady-state load flow assessments to evaluate voltage profiles, thermal loading of network assets, active and reactive power flows, and the impact of new connections on the existing network. These studies are required for network connection applications and inform plant sizing, transformer tap settings, and reactive compensation requirements.
- Steady-state load flow modelling under normal and contingency conditions
- Voltage profile analysis across the connection point and local network
- Thermal loading assessment of lines, cables, and transformers
- Reactive power and power factor compliance assessment
- Network augmentation identification and recommendations
Fault level & short circuit analysis
Accurate fault level analysis is essential for the safe sizing of switchgear, cables, busbars, and protection systems. Gridserve conducts three-phase and asymmetrical fault studies to determine maximum and minimum fault currents at key network nodes, ensuring all equipment ratings are appropriate and that protection systems operate correctly under fault conditions.
- Three-phase, single-line-to-ground, line-to-line, and double-line-to-ground fault analysis
- Maximum and minimum fault current determination
- Switchgear and equipment fault rating verification
- Contribution of embedded generation and BESS to fault levels
- Fault level impact assessment for network connection applications
Stability studies — transient, voltage & frequency
Stability studies assess how a power system responds to disturbances — generator trips, network faults, sudden load changes, and loss of supply events. These studies are a mandatory component of connection applications for generating systems and BESS under the NER, and are increasingly required for large loads with significant reactive power demand.
- Transient stability analysis — rotor angle and synchronism following faults
- Voltage stability and reactive power margin assessment
- Frequency stability and rate-of-change-of-frequency (RoCoF) analysis
- Generator and BESS performance standards compliance (S5.2 NER)
- Low voltage ride-through (LVRT) and fault ride-through (FRT) verification
- Islanding detection and anti-islanding compliance assessment
Protection coordination & relay settings
A protection system that operates incorrectly — too slowly, too fast, or not at all — can result in equipment damage, extended outages, and safety incidents. Gridserve performs detailed protection coordination studies and develops relay settings that ensure selective, dependable, and secure fault clearance across the full network topology.
- Protection philosophy development and system design
- Overcurrent, earth fault, distance, and differential protection coordination
- Relay settings calculations and grading studies
- Generator and BESS protection scheme design
- Auto-reclose and busbar protection coordination
- Protection settings documentation and relay testing support
Power quality studies
Poor power quality affects equipment reliability, operational efficiency, and network compliance. Gridserve conducts power quality assessments for both generation and large load connections, covering harmonic distortion, voltage fluctuation, flicker, and unbalance — addressing both the impact of the facility on the network and the network’s impact on sensitive equipment at site.
- Harmonic load flow and impedance scan studies
- Total harmonic distortion (THD) compliance against AS/NZS 61000 and network limits
- Flicker and voltage fluctuation assessment for variable loads and generation
- Voltage unbalance analysis for three-phase systems
- Passive and active filter sizing recommendations
- Power quality monitoring and post-connection verification
BESS & renewable energy connection studies
Battery energy storage systems and renewable energy projects face a distinct set of power system challenges — inverter-based resources behave fundamentally differently from synchronous generators, and network operators require detailed modelling to assess their impact. Gridserve has specific capability in the studies required for BESS, solar farm, and wind project connections under the NER and AEMO’s Generator Performance Standards framework.
- Generator Performance Standards (GPS) compliance assessment — S5.2 NER
- Inverter model validation and manufacturer data review
- Network connection studies for Rule 5.3 connection enquiries and applications
- Reactive power capability and automatic voltage regulation (AVR) studies
- BESS state-of-charge and dispatch modelling under contingency scenarios
- Weak grid and short circuit ratio (SCR) assessment for inverter performance
- Commissioning test plan development and results verification
Data centre & large load studies
Data centres and other large industrial loads present unique power system challenges — high fault contributions from UPS systems, harmonic injection from variable speed drives and power electronics, and critical reliability requirements that demand detailed network analysis. Gridserve delivers the full suite of studies required for network connection and internal distribution design for data centres, mines, water treatment facilities, and large commercial loads.
- Connection impact assessment for large load network applications
- Internal LV and HV distribution system design and analysis
- UPS, generator, and standby power system integration studies
- Harmonic and power quality assessment for sensitive IT and process loads
- Demand management and load shedding scheme design
- Critical power system reliability and N-1 contingency analysis
Sectors & project types
Gridserve delivers power system studies across a broad range of project types and industry sectors throughout Australia.
Generation & storage
Utility-scale solar farms
Connection studies, GPS compliance, inverter modelling
Generation & storage
Battery energy storage (BESS)
Stability, protection, weak grid, and dispatch studies
Generation & storage
Wind farms & hybrid projects
Dynamic modelling, FRT, and frequency response studies
Large load
Data centres
HV connection, power quality, UPS integration, N-1 analysis
Large load
Mining & resources
Load flow, fault analysis, motor starting, and protection
Utility
Water & wastewater
Distribution network studies, protection, and power quality
Infrastructure
Transmission & distribution networks
Network augmentation, connection impact, and planning studies
Commercial & industrial
Industrial & commercial facilities
HV/LV distribution, embedded generation, and compliance
Our Services
Tell us your project requirements, and we’ll connect you with a specialist engineer suited to your needs.
Engagement Models
Contract / Secondment
Engineers embedded with your team on-site or hybrid for the duration of the project.
Managed Services
Gridserve manages study delivery, quality assurance, and reporting end-to-end.
Project-based
Gridserve manages study delivery, quality assurance, and reporting end-to-end.
Why Gridserve
- Deep utility and energy sector domain expertise
- Pre-vetted professionals with verified credentials
- Rapid mobilisation — resources available within weeks
- Flexible engagement — contract, managed, or project-based
- Coverage across VIC, NSW, QLD, and WA
- Ongoing performance support throughout engagement