Reykjanes Geothermal Power Plant

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Reykjanes Geothermal Power Plant

• Utilization of Geothermal Energy
• in Iceland

Naoko Yamaguchi (Fuji Electric Systems Co.,
Ltd.)Albert L. Albertsson (Hitaveita Suðurnesja
hf.)
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Relationship between HS and FES

• 1980 Svartsengi Unit 3 (6,000kW)
• 1997 - 99 Svartsengi Unit 5 (30,000kW)
• 2004 - 06 Reykjanes Unit 1 2 (50,000kW)
• 2005 - Svartsengi Unit 6 (33,000kW)

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Geothermal Energy Utilizationin Iceland

• about 18 of Electricity
• about 88 of District Heating
• ... are produced from geothermal resources

HS supplies district heating water and
electricity produced by Combined Heat and Power
(CHP) geothermal plants.
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Geothermal Power Plants in Iceland
(Þeistareykir)
Krafla
Bjarnarflag
(Hágöngur)
(Trölladyngja)
Nesjavellir
Hellisheiði
Reykjanes
Svartsengi
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Svartsengi
Reykjanes
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Resource Park Unique Concept of HS hf

• Integrated use of a variety of objective and
  subjective resources of different nature
• To equally accentuate ecological balance,
  economic prosperity and social progress
• Lodestar of HS hf on the way to sustainable
  development

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Svartsengi Resource Park
Geothermal Power Plant 3 x back pressure
turbine-generator units 7 x binary units 1 x
condensing turbine-generator unit
Extensive Ground Water System for Regional Heating
Blue Lagoon - Public Spa - Skin health clinic
- RD of geothermal fluid
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Svartsengi Geothermal Power Plant
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Svartsengi Unit3(Back pressure 6,000 kW
turbine-generator)
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Svartsengi Unit5(Condensing 30,000 kW
turbine-generator)
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Reykjanes Resource Park (RRP)
Geothermal Power Plant 2 x condensing
turbine-generator unit
Interactive Exhibit Power Plant Earth (PPE)
Utilization of Lava-filtered Warm Sea Water
Deep Drilling for enhanced geothermal resource
utilization
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Power Plant Earth (PPE)

• Educational exhibitions for
• Energy history of mankind
• Explanation of various energies
• History of the area
• Geology and geographic of the area
• etc.

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Utilization of Warm Sea Water

• Sea water cooled power plant produces about 4000
  l/sec of 40C pure sea water filtered through
  lava formation.
• Possibilities
• Leisure
• Aquaculture (cultivation of algae, etc.)
• Production of hydrogen and oxygen

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Deep Drilling

• HS actively participates in a long term
  international RD Project on Deep Drilling in
  Iceland (IDDP).

• The mission of IDDP is
• Drill 4000 - 5000 m wells to harness
  supercritical fluid for enhanced power production
• Recovery of valuable minerals from brine

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Around Reykjanes Geothermal Power Plant(as of
June 2006)
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Reykjanes Resource Park in Future
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Reykjanes Geothermal Power Plant
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Sea Water Cooling System
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Reykjanes Unit 1 2 Turbine-Generator
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Design Parameters - Turbine
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Turbine at FES Kawasaki Factory
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Sectional View of Turbine
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Design Parameters - Generator
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Generator at FES Kawasaki Factory
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Unique Characteristics of Reykjanes Turbine

• High Inlet Steam Pressure
• Large Tolerance against Scale Building Up
• 1st Stage Blade Material Difference
• Automation for Unmanned Operation

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Unique Characteristics of Reykjanes Turbine (1)

• High Inlet Steam Pressure
• 19 bar abs / 209.8 C ltHighest condition in the
  geothermal applicationsgt
• High moisture content at exhaust
• Double flow turbine
• Massive low pressure blade

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Unique Characteristics of Reykjanes Turbine (2)

• Large Tolerance against Scale Building Up
• Large steam chambers and governing valves
  approx. 6 tolerance
• Overpressure capability- can be operated up to
  21 bar abs
• Overload valves- can admit additional 10 steam
  flow

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Unique Characteristics of Reykjanes Turbine (2)
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Unique Characteristics of Reykjanes Turbine (3)

• 1st Stage Blade Material Difference
• Unit 1 - Titanium (Ti-6A1-4V)
• Unit 2 - 13 Cr Stainless Steel
• ... enable to evaluate the advantage of Titanium
  blades, for example
• Resistance characteristics against corrosion
• Better property against scaling

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Unique Characteristics of Reykjanes Turbine (4)

• Automation for Unmanned Operation
• Reykjanes Power Plant is operated with no
  operator during the night time
• Full Automation Remote Operation
• enables to recover light faultsfrom Svartsengi
  Power Plant

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Present and Future ofReykjanes Geothermal Power
Plant

• Reykjanes Geothermal Power Plant was put into the
  commercial operation in June 2006, and is
  continuing steady operation.
• Operation data will be shared and valuably used
  for development between HS and FES.

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Another Cooperation betweenHS and FES

• Svartsengi Unit 6
• 33MW Turbine with
• Controlled Extraction
• for more efficient utilization of geothermal
  resources by cascading use of steam brine

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Conclusion

• Good relationship and further cooperation between
  HS and FES will back up the sustainable
  development by improvement of geothermal
  resources utilization.

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Thank You.
Naoko Yamaguchi (Fuji Electric Systems Co.,
Ltd.)Albert L. Albertsson (Hitaveita Suðurnesja
hf.)