Abstract

Australia's emergent geothermal energy industry is growing rapidly. So far, 29 companies have applied for geothermal exploration licenses. The majority of these companies are prospecting for Hot Rock geothermal resources for electricity generation, with some companies targeting hydrothermal resources. The Hot Rock model in the Australian context comprises a thick sequence (>3km) of low-thermal conductivity sediments overlying deeper high-heat-producing granites. Until now, the key dataset available to industry to guide their geothermal exploration has been a map of crustal temperature at 5km depth1. Compiled from temperature measurements made in 5,722 petroleum wells across Australia, the map indicates a vast geothermal resource. Additional national-scale geothermal datasets are either incomplete, not publicly accessible, or have not been collected. In August 2006, the Australian Government announced an Energy Security Initiative. It provides $58.9M to Geoscience Australia (the national geoscience and spatial information agency) over five years for an Onshore Energy Security Program (OESP). The OESP aims to better understand Australia's geological potential for onshore energy resources such as petroleum, uranium and geothermal, and includes the acquisition of new seismic, radiometric, heat-flow, magneto-telluric, gravity, magnetic, geochemical and drill-hole data. Providing new data will help attract company exploration in new areas by enhancing the chances of discovery and reducing the risks to investors. Established as part of the OESP, a new Geothermal Energy Project will generate precompetitive geoscientific information for geothermal explorers through two major activities: creating maps of heat distribution across Australia, and developing a geothermal information system. Heat distribution will be mapped in three ways: (1) new heat flow measurements in existing and new drill-holes; (2) a granite source-sediment heat trap map to identify Hot Rock systems; and (3) enhancements to the 5km-temperature-map method of Chopra and Holgate1. The geothermal information system will include thermal conductivity, thermal gradient, geochemistry, density, and heat production amongst other data types. The Australian Government is also facilitating and funding the preparation of a Geothermal Industry Development Framework, which is being lead by the Department of Industry, Tourism and Resources. The Development Framework aims to support the growth of Australia's geothermal industry by identifying opportunities and impediments to the industry's growth, and developing strategies to ensure that technical, economic and regulatory obstacles are tackled in a coordinated way. 1 Chopra, P. and Holgate, F., (2005) A GIS analysis of temperature in the Australian crust, Proceedings of the World Geothermal Congress 2005, Antalya, Turkey, 24-29 April 2005.
Google map showing geographic bounding box with values North bound -10.0 East bound 154.0 West bound 110.0 South bound -44.0
Related Links
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays

Product Type/Sub Type

dataset - External Publication - Abstract

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2007

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

External Publication
Abstract
Hot Rocks
geothermal
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-10.0
East bound
154.0
West bound
110.0
South bound
-44.0

Lineage

Unknown

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

a05f7892-d0b8-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2007-09-11

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Related Links
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays