ACT and district PHES atlas
The ACT has relatively few potential sites for pumped hydro energy storage (PHES) sites due to the large fraction
of the territory’s mountains that is occupied by Namadgi National Park. However, there are many good potential sites
in the surrounding district. We found a total of 871 nearby potential sites with a combined energy storage potential
that is about 200 times larger than the ACT & district share of the storage needed to support a 100% renewable electricity
grid. The large number of nearby sites provides some confidence that there will be a good number of technically feasible
PHES sites. Site searching and development of a PHES cost model are being explored as part of an ARENA funded project.
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. This information will be available
in future releases of the atlas.
ACT spreadsheet (xlsx, 66 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 the ACT
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.
ACT .kmz file (.kmz, 91 K)
Please refer to our Google Earth FAQs for more information.