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Nevada Geothermal
Power – Advanc ing
geothermal in the
western U.S.
evada Geothermal Power
NGP) is an experienced
renewable energy producer focusing
on the development of CLEAN electri-
cal power from high temperature geo-
thermal resources in the United States.
NGP holds leasehold interests in eight
geothermal projects located in western
United States, including: Blue Mountain,
Pumpernickel, North Valley, Edna Mountain,
New Truckhaven, East Brawley, South
Brawley and the Crump Geyser in Oregon.
The Crump Geyser: Oregon
The Crump Geyser area is located in
Warner Valley, Lake County, in Oregon.
According to the NGP website, the reservoir
could produce 40 - 80 MW*.
NGP says: “The Crump Geyser area is
located within the moderate to high thermal
Washington State and covers much of central
and eastern Oregon. The Renewable North-
west Project considers the Basin and Range
country of southeastern Oregon one of the
most promising geothermal areas in the
Pacific Northwest
In November 2010, the company entered
into a joint venture agreement with Ormat
Nevada Inc. to introduce a 30 MW plant in
service at Crump Geyser by 2013.
Project highlights (from NGP website):
• The Crump Geyser area is located
within a moderate to high thermal activity
• The Renewable Northwest Project
considers the area one of the most
promising geothermal areas in the Pacific
• The water temperature of the original
“Crump Geyser” reached a maximum 251°F
(122°C) below 32 ft (10 m) depth
• November 2005: Thermochem con-
firmed temperatures upwards of 302°F
(150°C) from geothermal spring samples of
the region.
• Crump Geyser received a US$1.76 M
DOE grant for innovative exploration and
• NGP entered into a joint venture with
Ormat in November 2010 to develop a
30MW plant by 2013
Exploration history**
The Crump Geyser was formed as a result
of a well drilled by Nevada Thermal Power
Company (Peterson, 1959). In the 1950’s, the
Company conducted a systematic drilling
program in this part of Oregon, Nevada, and
California, in a search for a source of natural
superheated steam. Nevada Thermal Power
Company (NTPC) was a division of Magma
Power Company of California.
Two days after the completion of the hole,
the well erupted sending a column of steam
and hot water 45 m in the air. It was, at this
time, the site of the largest continuously
erupting geyser in the United States. The
geyser was vandalized in the early 1960s.
Several boulders were thrown in the casing,
after which the behavior of the geyser
changed. It continued erupting, but only to a
height of approximately 18 m, and with
periods of inactivity of about 2 minutes. The
geyser has been active for several years.
* Ranges shown are based on 90 per cent
probability and 50 per cent probability and
have been adjusted to reflect a 20-year output
**from NGP website: