The system consists of an AC-coupled off-grid system from SMA Technology, Germany; equipped with 9 x Sunny Island and 6 x Sunny Mini Central 8000TL based on 3 banks of 4500Ah FLA batteries each at 48V from BAE, Germany. The PV system consists of 46kW of solar power mounted on bespoke aluminium football stand in order to provide a secondary use.To assist to the local community in operating the system, an eleven-day training program was conducted jointly by Peter Libretto and SMA Solar Technology Australia. This included theoretical training in the basics of PV systems, system sizing and technology of hybrid systems, as well as practical components of installation, safety, commissioning an. After one month of operation by the Tuvalu Electricity Corporation (TEC), data gathered from the system shows that it will replace the use of approximately 46,000 litres of diesel per year, saving the community up to $65,000 annually.The hybrid 46 kilowatt (kW) system has dramatically changed the school community's lifestyle. Prior to the instalment of the system the school relied upon a generator to provide power, which needed to be turned off during the night. Now, the school has a 24-hour supply of energy, with up to 200 kW per day.
