Kimba [Upper Eyre Peninsula], South Australia – half way across Australia.
The Kimba Community Development Group [KCDG] required as Stand Alone Power System (SAPS) to power and illuminate for a maximum of 3 hours the community art work commissioned for Kimba’s wheat silos, a six cell 65mx33m ‘canvas’.
This would allow the community to experience and appreciate the wonder of this silo art after sunset.
The Design Process:
Extensive and detailed discussions and collaboration with KCDG, Viterra the silo complex owner, and a lighting design engineer ensured all aspects of the site were considered and solutions found for such issues as location of the solar PV, battery & SAPS cabinet, lighting design and location to meet silo operational needs and budget.
Due to silo operational requirements, the lighting needed to be located 35 metres from the silo. This required the sourcing of 4 custom built 450w
LED flood lights to meet the photometric design.
The trenching and civil works were undertaken by the Kimba Council Works Department and the AC connection by local electrical firm DC Electrical.
The Solar PV array was installed on Viterra’s precinct office roof and the SAPS/battery cabinet located under its verandah.
The final Stand Alone Power System design consist of:
- 24/3000/70-50 MPPT color control,
- Sungel battery by Battery Energy,
- REC Twin Peak 290w series2 panels,
resulting in a remotely monitored 24volt-16Kwh /3.48Kwp system.
Victron EasySolar was chosen as the inverter charger system to build the SAPS around as it provided the most compact solution for the space available and budget. It was supplied by South Australian distributor MyEnergy who with remote installation experience, know and support South Australia well.
It allowed the array to be oversized to meet the mid-year low PV conditions ensuring good all-round battery management with minimal recourse to backup power, and provided an integrated remote monitoring functionality (VRM Portal).