Title: Caribbean Geothermal Update
1WEST INDIES POWER HOLDINGS B.V.
Caribbean Geothermal
2 CARIBBEAN GEOTHERMAL By Kerry A
McDonald CEO WEST INDIES POWER HOLDINGS
B.V. www.westindiespower.com
3What is Geothermal
- Geothermal is from the Greek words Geo
meaning earth and Thermal meaning heat. It
means heat from the earth.
4Geothermal Power is the use of super heated hot
water and steam located in the Earth (Geothermal
Resources) which are extracted by specially
designed wells (Well field) and allowed to
convert to steam when it reaches the
surface. That steam is then collected in pipes
(Gathering System) and sent to a geothermal steam
turbine which uses the steam to generate
electricity (Power Plant).
WEST INDIES POWER HOLDINGS
5Hottest Known Geothermal Regions
6World Geothermoelectric Production as of 2002
JAPAN 544 MW
RUSSIA 34 MW
USA 2,077 MW
ICELAND 198 MW
ITALY 631 MW
CHINA 28 MW
TURKEY 12 MW
PHILIPPINES 1,893 MW
PORTUGAL 16 MW
ETHIOPIA 7 MW
INDONESIA 807 MW
KENYA 109 MW
NEW ZEALAND 419 MW
CENTRAL AMERICA 309 MW
FRANCE 7 MW
MEXICO 870 MW
- 2009 total geothermal installed Capacity about
10,000 MW - Geothermal electricity production in the year
2000 49,000 GWh
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7There are more than 10Gigawatts (10,000MW) of
currently installed geothermal power worldwide
and plans to install an additional
5Gigawatts(5000MW) in the next decade.
8Islands with Geothermal Potential in the Caribbean
- Dominica
- Grenada
- Guadeloupe
- Martinique
- Montserrat
- Nevis
- Saba
- Statia
- St Kitts
- St Lucia
- St Vincent
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11POWER GENERATION POTENTIAL OF THE CARIBBEAN
In 1999 a study by the United States Department
of Energy, based on all available information,
calculated that the islands of the Caribbean
could produce 10,000MW of Geothermal Power. Since
the power plants are modular in steam turbine
production units it can designed and constructed
to allow for an expansion of electrical
production capacity.
12Groups Active in Geothermal in the Caribbean
- West Indies Power Holdings B.V. (Netherlands
Antilles) Headquarters in Charlestown, Nevis - Dominica
- Saba
- St Vincent
- Nevis/St Kitts
- Caribbean Interconnect Project
- EDF/CFG (France) French Government Companies
- Guadeloupe
- Martinique
- UNEC Ltd. (Canada) Private
- St. Lucia
13West Indies Power
- Private Caribbean based Geothermal Power
Developer owned by European banks and Caribbean
interests - Well funded fully integrated geothermal
development company with its own geothermal
exploration and production equipment, including
geothermal drill rigs and a staff with over 100
years combined geothermal exploration,
development and operation experience - Active throughout the Caribbean
- Currently developing a 40 MW Single Flash
Geothermal Plant on Nevis ,which will be largest
geothermal plant in the Caribbean, to supply
electricity to Nevis and St Kitts - Currently has geothermal projects in Dominica,
Saba, Nevis and St Vincent - Developing the Caribbean Interconnect Project
14EDF/CFG
- Two French State companies
- EDF- Electricite de France (State owned
Utility) - CGF- Compagnie de Francaise pour le
Developpement de la Geothermie ( owned by State
owned BRGM-French Geologic Survey) - Active in Guadeloupe and Martinique
- Operates 15 MW La Bouillante geothermal power
plant on Guadeloupe
15Uniting the Eastern Caribbean Inc
- Uniting the Eastern Caribbean Inc. (UNEC Inc.)
is/was a private Canadian company ? - Signed a Memorandeum of Understanding (MOU) with
Government of St Lucia in 2004 - Currently dispute between a Robert Croghan and
Qualibou Energy (Private Canadian Financial
Company) as to who owns MOU - No work has been done by either party on the
project in St Lucia - Little information available
16Dominica
- USDOE estimates potential of 1390MWs
- Geophysics and shallow drilling by French in
1970s - Geology and engineering by Dominica Geothermal
Power Company in 1990s - Part of OAS Study area
- Presently the subject of a two year EU study to
evaluate geothermal resources in Wotten Waven
area, study the feasibility of an undersea cable
link Guadeloupe-Dominica-Martinique, and conduct
an Environmental Impact Study - WIP granted license in 2008 to explore and
develop the geothermal resources in the Soufriere
area. Currently conducting exploration work on
Dominica
17Grenada
- USDOE estimates potential of 1100MWs
- USDOE conducted geological and geochemical
surveys in 1999. - No activity at present
18Guadeloupe
- USDOE estimates potential of 3500MW
- First operating geothermal plant in the
Caribbean, a 4.2 MW geothermal power plant
installed and operated by a EDF/CFG partnership
at Bouillante in 1986 and has been in full
operation since 1996. - Plant was expanded to 15MW in 2004.
19Martinique
- USDOE estimates potential of 3500MWs
- EDF/CFG conducted geophysics and shallow drilling
in 2004 - Results inconclusive and will require deep
drilling to further prove resource
20Montserrat
- USDOE estimates potential at 940MWs
- BGS and Canadian company drilled shallow hot
water wells in the 1970s - BGS and MVO has conducted geology, geophysical,
and geochemistry surveys - Most prospective geothermal exploration area
located in Exclusion Zone
21Saba
- USDOE estimates potential of 3000MWs
- USDOE conducted geology and geochemistry study in
1998 - WIP signed agreement to explore for geothermal
resources on Saba in 2008 - Exploration began in 2009
22Statia
- USDOE estimates potential of 0 MWs
- USDOE conducted geology and geochemistry work in
1998. - USDOE work showed that the island has a very low
potential for geothermal resource development
23Saint Kitts
- USDOE estimates has potential of 500MWs
- USDOE conducted geophysical and geochemical
studies in 1999 - Best location is at Brimestone Hill which is a UN
World Heritage Site which forbids geothermal
development - Part of OAS Study area
- WIP will begin exploration work in St Kitts in
2009
24Saint Lucia
- USDOE estimates a potential of 680MWs
- Drilled in 1970s and 80s by US, British, and
Italian groups. Drilling showed poor geothermal
flows and acidic steam. - Government signed MOU with UNEC Ltd. of Canada to
develop geothermal resources in 2004 - In 2005 the best geothermal development area at
Volcano Park was declared a UN World Heritage
Site which prohibits development - Part of OAS Study area
- No current activity on the ground
25Saint Vincent
- USDOE estimates has potential of 890MWs
- WIP formed joint venture with Government to
develop the geothermal resources on the island - WIP conducted geological, geophysical and
geochemical surveys in 1998. - USDOE conducted geological and geochemical
surveys in 1999. - WIP plans to commence exploration in 2009.
26Nevis
- USDOE estimates potential of 800MW
- USDOE study in 1998
- Hot water wells drilled in 1960s
- OAS conducted SP geophysics with MIT in 2004 and
found that island is covered with a volcanic cap.
- WIP was granted geothermal resource license in
2007 completed exploration work and began slim
hole drilling in January 22, 2008. - On May 1, 2008, the Nevis 1 well was declared a
commercial hydrothermal well by independent
geologic consultants, making it the first
commercial geothermal well in the OECS
27WIP Exploration Rig at Work
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29Nevis 1
- On May 1, 2008, the Nevis 1 well was declared a
commercial hydrothermal well by independent
geologic consultants, making it the first
commercial geothermal well in the OECS - Temperature 500F (260C)
- Depth 3300 ft. (1005 m)
- Hot water flows beginning at 2500 ft. (762 m)
- Well head flow pressure of 100 psi (6.8 bars). .
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31Nevis 2
- On September 1, 2008, the Nevis 2 well was
declared to have found commercial hydrothermal
temperature by independent geologic consultants. - Temperature 498F (259C)
- Depth 2400 ft. (731.5 m)
- Steam flashing in borehole
- Well head pressure of 210 psi (14.5 bars).
- Nevis 2 is located 1.3 miles (2.1km) south of
Nevis 1. - WIP estimates drill proven potential of 300MW
between Nevis 1 and Nevis 2
32Nevis 3
- On October 16th, 2008, the Nevis 3 well began
producing steam stronger than either Nevis 1 or
Nevis 2 - Temperature 450F (232C)
- Depth 2900 ft. (883.9 m)
- Steam flashing at wellhead more than 100 ft.
- Well head pressure of 260 psi (17.9 bars).
- Nevis 3 is located 2.5 miles (4km) south of Nevis
1. - WIP estimates drill proven potential of 500MW
between Nevis 1 and Nevis 3
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34Nevis40 MW Geothermal Power Plant Schedule
- Drilling of three 15 MW Production wells and one
injector well to begin in July/August 2008 - Design and engineering of 2x5MW and 2x15 MW
Single Flash Geothermal Power Plant began in May
2008 - Study for undersea HVAC cable linking Nevis and
St Kitts to be completed in July 2008 - Construction of the 2x5MW Single Flash Geothermal
Power Plant for Nevis to begin in May/June 2009. - Plant is scheduled for commissioning in 2nd
Quarter of 2010. - Construction of the 2x15MW Single Flash
Geothermal Power Plant for St Kitts to begin in
May/June 2009 - Plant is scheduled for commissioning in 2nd
Quarter of 2011.
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36Single Flash Geothermal Power Plant
Single Flash power plants use hot water
reservoirs. In Single Flash plants, the hot water
is separated from the steam which goes to
operates the turbine.
37Caribbean Interconnect Project
The Caribbean Interconnect Project is a WIP
program to establish a power pool in the
Caribbean by developing geothermal power plants
on islands that contain geothermal resources and
supplying electricity from those power plants to
the islands of the Caribbean by use of HVDC/HVAC
submarine cables. WIP estimates that it may be
able to develop and supply over 1000 MWs of
electricity based on available data.
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39Undersea Electrical Transmission Cables
Cable is 3-core (triplexed) 500 sqmm (1000 kcmil)
conductors, 66 kV (69) kV XLPE insulation,
integrated optic fibers, steel wire armor. Such a
cable has a weight of 40 tons/km (64 tons/mile)
and a diameter of 150 - 160 mm (6 inch). The
cable is buried 1 meter below the sea floor
during instillation
Undersea HVDC (High Voltage Direct Current) and
HVAC (High Voltage Alternating Current) are used
extensively around the world. The longest
existing HVDC cable is the Norway Netherlands
Cable which is 700MWs and 700 kms in length. A
Converter Station is required with the HVDC to
change the DC to AC, There are proposals to build
a 1200 mile 2000MW HVDC cable from British
Colombia to southern California. HVAC cables are
used in distances not to exceed 150 miles and do
not require Converter Stations. Max depth is 1600
ft.
40Caribbean Interconnect
41Total Potential from Caribbean Interconnect
- Local Use Cable
Export Potential Total - Saba 2MW
200MW 202MW - St Vincent 15MW 200MW
215MW - Dominica 12MW 500MW
512MW - Nevis/St Kitts 10MW 500MW
510MW - Total 39MW
1400MW 1439MW
42THE ENVIRONMENTAL IMPACTS OF GEOTHERMAL
PLANTSCO2 Comparison
43CO 2 Elimination
- The 35MW St Kitts-Nevis geothermal power plant
will eliminate 166,000 tonnes of green house
gases per year - The Caribbean Interconnect Geothermal Power
Plants will eliminate approximately 850,000
tonnes of green house gases per year
44 Benefits of Geothermal Power Generation
- Energy independency, security and sustainability
- Low electricity prices to the consumer
- Certainty over electricity prices in the long
term - Energy generation efficiency (90 to 95)
- Sharp reduction in CO2 emissions improves the
environment and image of the tourism destinations - Growing energy consumption easily and quickly
addressed by adjusting peak capacity or scaling
up - Reduced prices of other utilities, by reducing
costs, such as desalination of the sea water - Spin off effects to the agriculture and tourism
- Attraction of new business sectors, which are
using a lot of electricity, such as data hosting
and processing centers -
45-
- Thank You
- For more information contact
- Kerry McDonald
- k.mcdonald_at_westindiespower.com