Indonesian PHES atlas

Fig. 1. Potential PHES sites in Indonesia (Google Earth). Click here for a higher resolution image.

The ANU is currently mapping pumped hydro energy storage sites throughout Indonesia – our results for Bali can be seen below, with information for other areas to follow.

Bali has many potential sites for pumped hydro energy storage (PHES), due to the mountainous geography. We found a total of 657 potential sites with a combined energy storage potential of more than 2 TWh. This is much more than enough to support a 100% renewable electricity grid for the whole of Indonesia. Thousands of PHES sites are expected to be found on other Indonesian islands. The large number of sites provides some confidence that there will be a good number of technically feasible PHES sites. Site searching in Indonesia is supported by the Australia-Indonesia Centre.

These sites were found using algorithms with defined search criteria within a geographic information system (GIS) platform. This platform was used to find detailed information, such as head, reservoir areas, and storage capacity. This list is not yet exhaustive. We are also in the process of developing a cost model that will determine the least cost option for the tunnelling between two reservoirs, and therefore the location of the lower reservoir. The Australian atlas can be accessed through the link below for reference – the additional information mentioned above will be available in future releases of the atlas.


Bali spreadsheet (xlsx, 431 K)

This spreadsheet contains a list of sites, and the basic characteristics of those sites. At this stage, matched lower reservoirs are not included. Head is assumed to be 400 m to allow an estimate of the potential energy storage.

The following Google Maps link provides the locations of the PHES sites (the reservoirs can be seen using the Google Earth files below):

Google Map link for reservoir locations in Bali

Google Earth can be used to view the potential reservoirs. This software is free, and widely accessible. When used in 3-D mode with 3:1 vertical exaggeration, Google Earth provides good visualisation from any direction. This .kmz file can be loaded in the "Places" field to allow the user to visualise the potential reservoirs. These are shown with a representation of the dam walls. Clicking on a blue reservoir displays a pop-up with information about that reservoir, as does clicking on a dam wall.

Bali .kmz file (.kmz, 5.1 M)

An Australian atlas of pumped hydro energy storage (pdf, 7.6 M)

Please refer to our Google Earth FAQs for more information.

Updated:  14 June 2018/ Responsible Officer:  RE100 Leader/ Page Contact:  RE100 Webmaster