Cardinia Childcare
Cardinia Childcare: Solar PV and BESS
Solar Hybrid Detail Design
Detailed design and Grid connection management for 2 x 100kW rooftop solar and 180kW/hr/90kW flow batteries.
Key Achievements:
- Runner up in the 2019 NECA excellence awards under the Energy Efficiency and Environment.
- Grid application management and approvals.
![](https://cdn.prod.website-files.com/63a12c43239f9dfa6b1a6228/64096686f0c8620ca18afbff_cardina%20childcare%20centre%20batteries.jpg)
Impact
![Technical design file of a solar and smart energy system.](https://cdn.prod.website-files.com/63a12c43239f9d41da1a6222/63a12c43239f9d42dd1a6258_commercial-design.jpg)
Project Scope
- Detail design for construction – SLDs, Schematics, switchboard GA's.
- Board builder liaison and management.
- Site testing including, relay setting, injection testing and power quality logging.
- Grid Applications – United Energy and Ausnet.
Project Details
- 2 x 100kW roof top solar PV systems, 2 x 180kWh/90kW Redflow batteries.
- Victron inverter/chargers and control.
- Changeover switch to bypass batteries.
- Volt Amp / Volt Watt response modes.
- Export limited.
- Grid protection relay on solar inverters and inverter chargers.
- Minimal volt drop through the 2250A DC switchboard.
![A man working on electrical schematics at an ergonomic desk](https://cdn.prod.website-files.com/63a12c43239f9d41da1a6222/64f6aaf317294453f65673fe_working-rana.jpg)
![A man working on solar panels on a roof](https://cdn.prod.website-files.com/63a12c43239f9d41da1a6222/63a12c43239f9da9e71a6257_commercial-compliant.jpg)
Project Challenges
- Flow batteries require significant space with limited room on site; however they have a long lifetime.
- Flow batteries are required to be fully discharged every two days.
- Victron inverter/chargers are single phase, therefore a phase imbalance relay was required.
- Multiple solar PV orientations.
Need advice on a project?
We're here to help.