The Cianten Caldera in Indonesia is immediately adjacent to the producing portion of the Awibengkok geothermal field. The Cianten Caldera contains rocks similar to those in the Awibengkok field, however, the Cianten Caldera is not capable of producing geothermal power on a commercial scale. The Cianten Caldera has been microseismically monitored along with the producing Awibengkok field as inje...

Geothermal resources have the potential of contributing significantly to sustainable development in many parts of the world. Sustainable management of a geothermal resource involves utilization at a rate, which may be maintained for a very long time (100300 years). The energy production potential of geothermal systems is primarily determined by the pressure decline caused by production. Overexp...

The availability of rare earth elements from primary resources has come into question in the last two decades. This has sparked various government and industry initiatives to examine potential rare earth element resources apart from virgin ore bodies. Geothermal fluids are potentially significant sources of valuable minerals and metals, while co-recovery with geothermal energy production would ...

Geothermal waters from springs and wells are currently used in eight spas and water centers in Poland. These resorts have a long and interesting history, being an important part among all the health spas in the country. The demand for geothermal curative and recreation services offered in spas constantly increases. The paper presents several cases of geothermal resorts and some examples of init...

Generally, studies of the terrestrial example of Yellowstone National Park indicate that the diversity of microbial life at the geothermal subsurface-surface interface is considerable. On the other hand, experiments in a subsurface well in Biscuit Basin suggest that the Yellowstone subsurface is highly reduced, with minimal in situ subsurface life at this location. The absence of life in the su...

Research into the sustainability of geothermal energy previously focused on the management and use of the resource (Rybach and Mongillo, 2006) and the environmental impacts during geothermal energy production (Bloomfield et al., 2003; Reed and Renner, 1995). Within these constraints, studies have shown that there will be less impact on air emissions (including greenhouse gases), water consumpti...

[1] Circulating groundwater transports heat. If groundwater flow velocities are sufficiently high, most of the subsurface heat transport can occur by advection. This is the case, for example, in the Cascades volcanic arc where much of the background geothermal heat is transported advectively and then discharged when the groundwater emerges at springs. The temperature of spring water can thus be...

Solarthermal plants can be supplemented with a seasonally operating geothermal deep probe and a heat pump, thus creating an energy supply system in which these devices support each other in an ideal manner. The system promises high shares of renewable energy and high efficiency of the solar and the geothermal system at the same time. This report introduces the concept of the system, explains it...

A shallow geothermal reservoir in the Pueblo of Jemez in New Mexico may indicate a commercialscale geothermal energy potential in the area. To explore the geothermal resource at Jemez Pueblo, seismic surveys are conducted along three lines for the purpose of imaging complex subsurface structures near the Indian Springs fault zone. A 3-D magneto-telluric (MT) survey is also carried out in the sa...