Utah Geothermal Developments2005

• Utah Geothermal Resources

• Project Activity

• Utah Geothermal Working Group

• Geothermal Web Site

• Most higher temperature resources in Basin & Range and Transition Zone

• Tectonically active (Quaternary faults)

• Young igneous rocks (active volcanism)

• High Heat Flow

GeothermalResourcesin Utah

Geothermal Use in UtahUtah Geothermal Use

Newcastle Geothermal AreaNewcastle Geothermal Area

• Southeast edge of Escalante Valley, Iron Co.Southeast edge of Escalante Valley, Iron Co.

• Four Commercial GreenhousesFour Commercial Greenhouses

• Potted plants, cut flowers, tomatoesPotted plants, cut flowers, tomatoes

• Two Operators – Milgro Newcastle and Castle Valley GHTwo Operators – Milgro Newcastle and Castle Valley GH

• ~ 25 Acres under cover~ 25 Acres under cover

• 6 – 7 production wells, ~ 500 – 600 ft deep, ~ 180 – 200°F6 – 7 production wells, ~ 500 – 600 ft deep, ~ 180 – 200°F

• Fluid disposal in 4 percolation ponds and 3 injection wellsFluid disposal in 4 percolation ponds and 3 injection wells

• Largest producer of chrysanthemumsLargest producer of chrysanthemums

• One of nation’s largest producers of Dutch bulb One of nation’s largest producers of Dutch bulb crops – irises, tulips, daffodils, hyacinths, and potted crops – irises, tulips, daffodils, hyacinths, and potted calla liliescalla lilies

• Currently produces 13 million potted plants and cut Currently produces 13 million potted plants and cut flowers annuallyflowers annually

• Recently acquired Royal Van Zanten, a leading Recently acquired Royal Van Zanten, a leading producer of cuttings, and now ships 30 million producer of cuttings, and now ships 30 million cuttings a year to other growerscuttings a year to other growers

Milgro Newcastle, Inc.Milgro Newcastle, Inc.

Roosevelt Hot Springs KGRARoosevelt Hot Springs KGRA

• The Pacificorp Blundell plant was dedicated in 1984 The Pacificorp Blundell plant was dedicated in 1984 and has improved plant efficiency, but no expansion and has improved plant efficiency, but no expansion since then (26 MW gross)since then (26 MW gross)

• Pacificorp (Utah Power) owns/operates Blundell Pacificorp (Utah Power) owns/operates Blundell plantplant

• Intermountain Geothermal Co. operates well fieldIntermountain Geothermal Co. operates well field

• Purchase of Pacificorp was announced on May 24 Purchase of Pacificorp was announced on May 24 by MidAmerican Energy Holdings Co. (~ $9.4 billion)by MidAmerican Energy Holdings Co. (~ $9.4 billion)

Pacificorp Purchase Effect on Pacificorp Purchase Effect on Blundell?Blundell?

• Intermountain Geothermal Company (field Intermountain Geothermal Company (field operator)operator)

• IGC is a component of California Energy IGC is a component of California Energy Company,Company,

• CEC is a subsidiary of MidAmerican Energy CEC is a subsidiary of MidAmerican Energy Holdings Co. (80% owned by Berkshire Holdings Co. (80% owned by Berkshire Hathaway Inc.)Hathaway Inc.)

• Plant operation and field development combinedPlant operation and field development combined

• Estimates of 50 to 100 MW sustainable output from RHS

Bonnett Geothermal Power PlantBonnett Geothermal Power PlantCove Fort – Sulphurdale KGRACove Fort – Sulphurdale KGRA

• Plant and field purchased in 2004 by Plant and field purchased in 2004 by Recurrent/AMP Resources from UMPA/Provo CityRecurrent/AMP Resources from UMPA/Provo City

• Preliminary plans include reconstruction of Preliminary plans include reconstruction of power station by a 30 – 40 MW Kalina cycle plant power station by a 30 – 40 MW Kalina cycle plant (ammonia and water)(ammonia and water)

• Development waiting on power purchase Development waiting on power purchase agreement and pending offering of federal leases agreement and pending offering of federal leases on national forest landon national forest land

• Operation suspendedOperation suspended

Crystal Hot Springs - BluffdaleCrystal Hot Springs - Bluffdale

• Point-of-the-Mountain at Bluffdale, Salt Lake Point-of-the-Mountain at Bluffdale, Salt Lake County; Flowing thermal springs fill several ponds, County; Flowing thermal springs fill several ponds, surface temp of ~ 135°F, subsurface temp ~ 195°Fsurface temp of ~ 135°F, subsurface temp ~ 195°F

Current Users -Current Users -

• Bluffdale Flowers greenhouses (250,000 ftBluffdale Flowers greenhouses (250,000 ft22, roses), roses)

• Formerly Utah Roses, began in early 1980s; plans to Formerly Utah Roses, began in early 1980s; plans to expand to 500,000 ftexpand to 500,000 ft22 (11 ½ ac.) (11 ½ ac.)

• Oquirrh 4 minimum security dormitory at State Oquirrh 4 minimum security dormitory at State PrisonPrison

• Hi-Tech Fisheries (tropical fish, Lake Malawi, GRV Hi-Tech Fisheries (tropical fish, Lake Malawi, GRV Africa)Africa)

Space & Water Heating at Utah State PrisonSpace & Water Heating at Utah State Prison

• In 2003, UDOC contracted Johnson Controls (ESCO) for improved management of energy, water, and waste (performance based)

• Included re-establishing geothermal heating system for Oquirrh 4 facility

• GT heating system in 1983-85 failed due to scale and corrosion

• Oquirrh 4 complex Phase I:Phase I: ~ 39,000 ft2 space and water heating

• $519,000 investment for annual savings of $69,000;$519,000 investment for annual savings of $69,000;

• payback – 7.6 years, predicted life – 17 years.payback – 7.6 years, predicted life – 17 years.

•Oquirrh 4 complex Phase II (2006?): ~ 250,000 ftPhase II (2006?): ~ 250,000 ft22 of building area of building area

• $1,524,000 investment for annual savings of $123,800$1,524,000 investment for annual savings of $123,800

• 12 ½ year payback

Utah Geothermal Working GroupUtah Geothermal Working Group• Promote innovative development and effective use Promote innovative development and effective use of Utah’s geothermal resources for direct use and of Utah’s geothermal resources for direct use and power generationpower generation

• Primary Emphasis - promote direct-use applications Primary Emphasis - promote direct-use applications and small-scale geothermal power projects to and small-scale geothermal power projects to stimulate rural economic development opportunitiesstimulate rural economic development opportunities

• Objectives (1) inform and educate members about Objectives (1) inform and educate members about geothermal resources and development in Utah, and geothermal resources and development in Utah, and (2) help remove barriers to geothermal development(2) help remove barriers to geothermal development

Utah Geothermal Working GroupUtah Geothermal Working Group

• First meeting – March 4, ‘03First meeting – March 4, ‘03

• Latest meeting Feb 24, ’05Latest meeting Feb 24, ’05

• Next meeting Oct 12, ‘05Next meeting Oct 12, ‘05

• ~ 30 - 40 people from federal & state gov’t, ~ 30 - 40 people from federal & state gov’t, academia, and private sectoracademia, and private sector

• UGWG Position Paper on Geothermal Energy UGWG Position Paper on Geothermal Energy Development in UtahDevelopment in Utah

• Brief summary of benefits, impediments, and Brief summary of benefits, impediments, and policy options for future growthpolicy options for future growth

http://geology.utah.gov/

http://geology.utah.gov/emp/geothermal/index.htm