Скачать или смотреть Don Thomas - Hawaii's Geothermal Resources 4/2/13

April 2, 2013 "Hawaii's Geothermal Resources: A Reassessment", presented by Dr. Don Thomas, Geochemist, and Director of Center for the Study of Active Volcanoes. As usual the presentation will be from 12:00 -- 1:00 PM (bring your lunch!) at the USDA Forest Service, Institute of Pacific Islands Forestry, 60 Nowelo St., Hilo. [mauka from Komohana St. and 'Imiloa area]

"Hawaii relies on petroleum for more than 80% of its electricity generation. In recent years it has become increasingly clear that this dependency comes at a significant environmental cost, and an expanding economic cost, to our residents; in recognition of these costs Hawaii's political and community leaders have encouraged expanded development of alternative energy resource that are available to us. One of these alternatives is volcanic heat that is stored deep within some of Hawaii's active and dormant volcanoes. Early research, begun more than 40 years ago, on these geothermal resources identified high temperature hydrothermal systems associated with Kilauea's East Rift Zone. That work led to a statewide study that estimated some potential for moderate-temperature hydrothermal systems on several of the older islands. However, the technology available for more detailed evaluation of those systems was, by today's standards, extremely primitive and of limited reliability. With the renewal of interest in alternative sources of power generation, the University has undertaken a reevaluation of these potential resources using more modern exploration technology. This work has been coupled with a U.S. Department of Energy funded project to develop new technology that will improve our ability to locate and characterize water (and steam) flow underground. This latter project, if successful, will not only reduce the costs of producing geothermal electricity, it will also reduce the environmental and community impacts of developing the resources found. Although we are still in the very early stages of this effort, the data recovered are extremely encouraging."


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