Nillumbik Stadium: 100kW PV, 100kWhr/45kW battery

Enhar's Scope

• Scoping, load analysis and concept design;
• Tender documentation and management on behalf of Nillumbik Council;
• As-builting of SLDs and Schematics;
• Site testing including injection testing and power quality logging;
• Troubleshooting assistance 

Project Details

• The Stadium is an Emergency Centre for Nullumbik Council in a fire prone region, with previously no back up generators
• System functionality requires 'peak load lopping' for bill reduction and 'islanding' mode for emergency situations
• Semi automatic controls to ensure full battery charge pre-empting an emergency situation    
• 100kW roof top solar utilisiing 12 x 8.2kW single phase inverters.
• 3 x 15kW Selectronic SP-Pro inverter/chargers.
• 100kWhr 120V DC Sonnenschein Exide battery bank.
• Public EV (electric vehicle) charging station

Project Challanges

• Fronius solar inverters are single phase, therefore a phase imbalance relay was required
• Battery BMS works independently of the inverter/chargers with no comms link between BMS and inverters/chargers
• Additional State of Charge (SOC) monitoring added to support battery warranty
• Client interface display panel including tenant control system and pilot lights.