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The first hybrid power supply system for a large bus terminal in Solo, Indonesia

The largest bus terminal in the city of Solo, Indonesia was being modernized and one of the goals was to electrify the commercial area using renewable energy. This project proves the Government will to decrease the dependency on fossil fuels. IPS supported this initiative through the application of its innovative award-winning technology EXERON

IPS designed, built and commissioned a tailor-made hybrid energy conversion system Exeron integrating Solar, Grid and Diesel Genset energy sources whereas a battery is used for storing the unused energy. The logic of the system operation gives the possibility to power the load during the day and at peak hours by the renewable PV installation while at the same time using unused solar energy to charge the batteries. In such a way the evening consumption could be satisfied by the stored energy in the battery. During periods of cloudy weather and when the battery is discharged, power is drawn from the grid. A backup diesel generator is available for emergency situations. The turnkey solution includes 132 KW output power, 120 kWp input from the sun, 480 kWh energy storage and 120 kVA Grid/DG input.

The turnkey solution with Exeron technology exceeds performance expectations. The Annual OPEX savings predicted are close to 46% with a payback period of 5.8 years. The carbon footprint (CO2) reduced by over 200 t/year.