Hybrid systems in Indonesian islands can contribute to reaching the national renewable energy targets
In addition to its five main islands, Indonesia is scattered across more than 17,000 smaller islands between the Indian and Pacific Oceans. Besides the government’s official target of 23% renewable electricity by 2025, there are economic reasons for an increase in renewable electricity on these islands, as the currently mainly diesel based generation can be considerably more expensive than generation form renewable sources.
As a starting point for the REEP 1000 Islands project by GIZ, which will provide technical assistance for the integration of renewables on a multitude of Indonesian islands, Energynautics will conduct integration studies on two of the islands. On the smaller island, there is currently no continuous power supply, with the grid only operating during the night time hours. The larger island is continuously supplied by a coal power plant and large diesel generators. On both islands, strategies to realize the goal of 23% renewable electricity are to be developed by conducting grid studies and evaluating technologies that enable the integration of PV and biomass resources. On the smaller island, an additional focus is set on the contribution of renewables in expanding the electricity supply to 24 hours a day.
The Energynautics project team traveled to Indonesia in late January 2018 to assess the power systems on the islands on site and conduct a measurement campaign.
PV plant on the small island
Old diesel generator set on the small island
SCADA center on the larger island
Biogas storage facilities on the larger island
Generator controls at one of the diesel gensets of the larger island