Horizon Power’s Onslow Power project is Australia’s largest distributed energy resource Microgrid, which on completion will provide more than half of the town of Onslow’s electricity needs from renewable resources. Faced with increased demand for energy in Onslow and driven by population movements and resource developments, the contemporary energy solution will meet ongoing energy needs of the town, whilst ensuring any new power infrastructure takes advantage of the price reduction in renewable and battery storage technology.
The project is referred to as a Distributed Energy Resources (DER) Microgrid, which is a way of creating energy differently compared with the traditional power station. Sources of energy could include rooftop solar, battery storage devices and wind. This energy is then stored in the battery storage system and fed to the community. The DER Microgrid is more cost effective and environmentally friendly than conventional generation of power.
The DER Microgrid consists of both a bulk, centralised 1 megawatt solar farm, the Magellan Power 1 MW/1 MWh battery storage system, as well as smaller distributed rooftop solar PV and battery storage systems throughout the Onslow community.
For the Onslow Power project the BESS was used for growth of renewable energy percentage in the microgrid, increasing generation efficiency and dynamic response of the power station, as well as improving the availability of generation and reducing carbon emissions.
The BESS can also be used for:
- Dynamic Spinning Reserve – (no need to use an additional gen-set as spinning reserve).
- Grid V/F Stabilisation (synthetic inertia and active damping).
- Grid Forming Constant V/F Source.
- Black Start of Power Plant.
- Load-Power Shifting.
- Load Levelling.
- Peak Shaving.
- Utility Transformer Energisation (mitigates the issues due to high inrush currents).
- Transmission Line Energisation.
- Microgrid Voltage and Frequency Regulation (V/F).
- Active Power Support.
- Dynamic Active Power Control (P).
- Active Power Absorption.
- Reactive Power Support.
- Dynamic Reactive Power Control (Q).
- Voltage Clamping (Reactive Power Grid Support).
The Onslow Power Project is due for completion in 2019.
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