GEA Text logo GEA text logo
GEA Member Information
GEA Forum 2014
Developing Plants in the United States

For the most current information on geothermal power projects under development in the United States, please refer to the 2012 Annual US Geothermal Power Production and Development Report.

Developing Projects by State:

The projects listed for each state are categorized by the following phases:

  • Phase I: Resource Procurement and Identification (i.e. identifying resource, secured rights to resource, pre-drilling exploration, internal transmission analysis complete).
  • Phase II: Resource Exploration and Confirmation (i.e. exploration and/or drilling permits approved, exploration drilling conducted/in progress, transmission feasibility studies underway).
  • Phase III: Permitting and Initial Development (i.e. securing PPA and final permits, full size wells drilled, financing secured for portion of project construction, interconnection feasibility study complete).
  • Phase IV: Resource Production and Power Plant Construction (i.e. plant permit approved, facility in construction, production and injection drilling underway, interconnection agreement signed).
  • Unconfirmed: Project information obtained by GEA from publicly available sources but not verified by the project developer
  • NOTE: GEA is reporting project information that is provided by developers or public sources. We do not independently verify the data provided or warrant its accuracy. For more background on how project information is reported, see GEA's Geothermal Reporting Terms and Definitions.

    To properly identify a projects “project type” please refer to the following key:
    • CH Unproduced: Conventional Hydrothermal (Unproduced) Resource
    • CH Produced: Conventional Hydrothermal (Produced) Resource
    • CH Expansion: Conventional Hydrothermal Expansion
    • Coproduction: Geothermal Energy and Hydrocarbon Coproduction
    • Geopressured: Geopressured System
    • EGS: Enhanced Geothermal System

     

    AK Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Pilgrim Hot Springs

    Unaatuq

    NA

    5

    CH Unproduced

     

    Unalaska

    City of Unalaska

    50

    10

    CH Unproduced

    Phase 2

     

    Akutan

    City of Akutan

    10

    10

    CH Unproduced

     

    Mount Spurr

    Ormat Technologies

    NA

    NA

    CH Unproduced

    Phase 4

     

    Chena II

    Chena Hot Springs

    5

    0.4

    CH Expansion

    Unconfirmed

     

    Tongass

    Bell Island Hot Springs

    20

    NA

    CH Unproduced



    AZ Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Unconfirmed

     

    Apache County Project

    GreenFire Energy

    NA

    2

    EGS



    CA Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Northern California

    Gradient Resources

    NA

    NA

    CH Unproduced

     

    El Centro/Superstition Hills

    Navy Geothermal Program

    5-25

    NA

    CH Unproduced

     

    Orita 2

    Ram Power

    49.9

    49.9

    CH Produced

     

    Orita 3

    Ram Power

    49.9

    49.9

    CH Produced

    Phase 2

     

    Canby Cascaded Project

    Canby Geothermal

    5

    2

    CH Unproduced

     

    Surprise Valley

    Enel NA

    15-20

    15-20

    CH Unproduced

     

    Hudson Ranch 2

    Energy Source

    50

    49.9

    CH Produced

     

    El Centro/Superstition Mt.

    Navy Geothermal Program

    12-35

    NA

    CH Unproduced

     

    Chocolate Mt-Glamis

    Navy Geothermal Program

    12-15

    NA

    CH Unproduced

     

    Chocolate Mt-Hot Mineral

    Navy Geothermal Program

    12-15

    NA

    CH Unproduced

     

    Truckhaven

    Nevada Geothermal Power

    60

    30-50

    CH Unproduced

     

    Bald Mountain

    Oski Energy

    20

    NA

    CH Unproduced

     

    HV

    Oski Energy

    75-100

    NA

    CH Unproduced

     

    KN

    Oski Energy

    75-100

    NA

    CH Unproduced

     

    KS

    Oski Energy

    75-100

    NA

    CH Unproduced

     

    Wendel

    Oski Energy

    5

    NA

    CH Expansion

     

    Keystone

    Ram Power

    100

    50

    CH Unproduced

     

    New River

    Ram Power

    50

    50

    CH Unproduced

     

    Orita 1

    Ram Power

    49.9

    49.9

    CH Unproduced

    Phase 3

     

    Black Rock 1-2

    CalEnergy

    235

    235

    CH Unproduced

     

    Black Rock 5-6

    CalEnergy

    235

    235

    CH Unproduced

     

    CD4

    Ormat Technologies

    NA

    30

    CH Unproduced

     

    Wister I

    Ormat Technologies

    NA

    30

    CH Unproduced

     

    Geysers Project

    Ram Power

    26

    26

    CH Produced

    Phase 4

     

    Mammoth Repower

    Ormat Technologies

    NA

    3

    CH Expansion

    Unconfirmed

     

    Buckeye

    Calpine

    NA

    30

    CH Produced

     

    Four Mile Hill

    Calpine

    50

    NA

    CH Unproduced

     

    Telephone Flat

    Calpine

    50

    NA

    CH Unproduced

     

    Unnamed Glass Mountain

    Calpine

    320

    NA

    CH Unproduced

     

    Unnamed North Geysers

    Calpine

    NA

    100

    CH Produced

     

    Wildhorse – North Geysers

    Calpine

    NA

    30-50

    CH Produced



    CO Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Mt. Princeton

    Mt. Princeton Geothermal

    NA

    10-15

    CH Unproduced

     

    Poncha Hot Springs

    Mt. Princeton Geothermal

    NA

    10

    CH Unproduced



    HI Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Kona

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Kula

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Ulupalakua (Maui)

    Ormat Technologies

    NA

    NA

    CH Unproduced



    ID Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    White Mountain

    Eureka Green Systems

    150

    NA

    CH Unproduced

     

    Newdale

    Standard Steam Trust

    NA

    NA

    CH Unproduced

     

    Parma

    Standard Steam Trust

    NA

    NA

    CH Unproduced

     

    Weiser

    Standard Steam Trust

    NA

    NA

    CH Unproduced

     

    Raft River 3

    U.S. Geothermal

    114*

    16.6

    CH Produced

    Phase 3

     

    Raft River 2

    U.S. Geothermal

    114*

    16.6

    CH Produced

    Unconfirmed

     

    China Cap

    Idatherm

    50-100

    NA

    CH Unproduced

     

    Preston

    Idatherm

    50

    NA

    CH Unproduced

     

    Renaissance Geothermal

    Idatherm

    100

    NA

    CH Unproduced

     

    Sulfur Springs

    Idatherm

    25-50

    NA

    CH Unproduced

     

    Willow Springs

    Idatherm

    100

    NA

    CH Unproduced



    LA Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Unconfirmed

     

    Natural Gas Coproduction

    Gulf Coast Green Energy

    NA

    0.05

    Coproduction



    NV Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Desert Queen

    Alterra Power Corp.

    NA

    NA

    CH Unproduced

     

    McCoy

    Alterra Power Corp.

    NA

    NA

    CH Unproduced

     

    Soda Lake South

    Alterra Power Corp.

    NA

    NA

    CH Unproduced

     

    Upsal Hogback

    Alterra Power Corp.

    NA

    NA

    CH Unproduced

     

    Lee Hot Springs

    Earth Power Resources

    32

    NA

    CH Unproduced

     

    Lovelock

    Earth Power Resources

    32

    NA

    CH Unproduced

     

    Harmon Lake

    Enel NA

    NA

    15-20

    CH Unproduced

     

    Aurora

    Gradient Resources

    190

    NA

    CH Unproduced

     

    Colado

    Gradient Resources

    350

    NA

    CH Unproduced

     

    Lee Allen

    Gradient Resources

    145

    NA

    CH Unproduced

     

    Darrough Hot Springs

    Great American Energy

    30-100

    NA

    CH Unproduced

     

    Gerlach Power

    Kodali, Inc.

    60

    NA

    CH Unproduced

     

    Sou Hills

    Montara Energy

    NA

    NA

    CH Unproduced

     

    Naval Air Station-Fallon

    Navy Geothermal Program

    5-15

    NA

    CH Unproduced

     

    Blue Mountain 2

    Nevada Geothermal Power

    NA

    NA

    CH Produced

     

    North Valley

    Nevada Geothermal Power

    120

    55

    CH Unproduced

     

    Argenta

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Brady EGS

    Ormat Technologies

    NA

    NA

    EGS

     

    Dixie Meadows

    Ormat Technologies

    NA

    30

    CH Unproduced

     

    Hycroft

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Mustang

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Quieta

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Smith Creek

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Tuscarora 2

    Ormat Technologies

    NA

    NA

    CH Produced

     

    Walker River Paiute

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Alligator Geothermal

    Oski Energy

    20-40

    NA

    CH Unproduced

     

    Hawthorne

    Oski Energy

    25-50

    NA

    CH Unproduced

     

    Hot Pot

    Oski Energy

    30-50

    NA

    CH Unproduced

     

    Pilot Peak

    Oski Energy

    20-40

    NA

    CH Unproduced

     

    Marys River

    Standard Steam Trust

    NA

    NA

    CH Unproduced

     

    Marys River SW

    Standard Steam Trust

    NA

    NA

    CH Unproduced

     

    Granite Creek

    U.S. Geothermal

    NA

    NA

    CH Unproduced

     

    San Emidio 3

    U.S. Geothermal

    44*

    24.6

    CH Produced

    Phase 2

     

    Fireball

    Earth Power Resources

    32

    NA

    CH Unproduced

     

    Hot Springs Point

    Earth Power Resources

    32

    NA

    CH Unproduced

     

    Fallon

    Gradient Resources

    70

    NA

    CH Unproduced

     

    Salt Wells

    Gradient Resources

    60

    NA

    CH Unproduced

     

    Hawthorne Army Depot

    Navy Geothermal Program

    5-15

    NA

    CH Unproduced

     

    Fallon-Main

    Navy Geothermal Program

    30

    NA

    CH Unproduced

     

    Pumpernickel

    Nevada Geothermal Power

    33

    15

    CH Unproduced

     

    Dixie Hope

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Desert Peak EGS

    Ormat Technologies

    NA

    NA

    EGS

     

    Edwards Creek

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Leach Hot Springs

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Tungsten Mountain

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Silver State

    Oski Energy

    25-50

    NA

    CH Unproduced

     

    Clayton Valley

    Ram Power

    160

    160

    CH Unproduced

     

    Reese River

    Ram Power

    40

    24

    CH Unproduced

     

    Gerlach

    U.S. Geothermal

    25-35

    18

    CH Unproduced

    Phase 3

     

    Carson Lake

    Ormat Technologies

    NA

    20

    CH Unproduced

     

    Wild Rose

    Ormat Technologies

    NA

    15-20

    CH Unproduced

     

    New York Canyon

    Terra-Gen

    100

    80

    CH Unproduced

     

    San Emidio 2

    U.S. Geothermal

    44*

    12.75

    CH Produced

    Phase 4

     

    Florida Canyon Mine

    ElectraTherm

    NA

    0.05

    Coproduction

     

    Patua

    Gradient Resources

    120

    60

    CH Unproduced

     

    McGinness Hills

    Ormat Technologies

    NA

    30

    CH Unproduced

     

    Coyote Canyon

    Terra-Gen

    80

    67

    CH Unproduced

     

    Dixie Valley 2

    Terra-Gen

    NA

    5.1

    CH Expansion

    Unconfirmed

     

    Pyramid Lake

    Pyramid Lake Paiute Tribe

    NA

    NA

    CH Unproduced



    NM Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    South New Mexico

    Gradient Resources

    100

    NA

    CH Unproduced

    Phase 3

     

    Lightning Dock I

    Cyrq Energy

    NA

    15

    CH Unproduced



    ND Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 2

     

    ND Coproduction

    University of North Dakota

    NA

    0.25

    Coproduction



    OR Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Newberry I

    Davenport Newberry

    120

    30

    CH Unproduced

     

    Olene KBG

    Klamath Basin Geopower

    20

    NA

    CH Unproduced

     

    Foley Hot Springs

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Goose Lake

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Mahogany

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Midnight Point

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Silver Lake

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Summer Lake

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Twilight

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Olene Gap

    Oski Energy

    25-50

    NA

    CH Unproduced

    Phase 2

     

    Crump Geyser

    Nevada Geo. Power/Ormat

    80

    30

    CH Unproduced

     

    Neal Hot Springs 2

    U.S. Geothermal

    NA

    NA

    CH Unproduced

    Phase 3

     

    OM Power

    Kodali, Inc.

    30

    11

    CH Unproduced

     

    GeoHeat Center 2

    OIT

    NA

    1.5

    CH Expansion

     

    Paisley

    Surprise Valley Electric

    10

    2-4

    CH Unproduced

    Phase 4

     

    Neal Hot Springs

    U.S. Geothermal

    NA

    33

    CH Unproduced



    TX Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Unconfirmed

     

    Goliad Co. Coproduction

    Universal GeoPower

    0.8

    NA

    Coproduction



    UT Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Thermo 2

    Cyrq Energy

    NA

    NA

    CH Produced

     

    Thermo 3

    Cyrq Energy

    NA

    NA

    CH Produced

     

    Thermo 4

    Cyrq Energy

    NA

    NA

    CH Produced

     

    Cove Fort 2

    Enel NA

    60

    20

    CH Produced

     

    Hill Air Force Base

    Navy Geothermal Program

    NA

    NA

    CH Unproduced

     

    Drum Mountain

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Whirlwind Valley

    Ormat Technologies

    NA

    NA

    CH Unproduced

     

    Drum Mountain

    Standard Steam Trust

    NA

    NA

    CH Unproduced

    Phase 2

     

    Cove Fort

    Oski Energy

    50-75

    NA

    CH Produced

    Phase 3

     

    Cove Fort

    Enel NA

    60

    20

    CH Unproduced

    Unconfirmed

     

    Falstaff

    Verdi Energy

    NA

    20

    CH Unproduced



    WA Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 1

     

    Mt. Baker

    Gradient Resources

    100

    NA

    CH Unproduced



    WY Projects in Development

    Phase

    Project

    Developer

    Capacity Estimate (MW)

    Project Type

    Resource

    PCA

    Phase 4

     

    RMOTC Co-production

    RMOTC

    NA

    0.28

    Coproduction

     

    This page was last updated on 4/9/2012.

    Skip Navigation LinksGEA > Developing Plants