May Inha University, Korea

Transcription

1 May 2012 Inha University, Korea

2 Ocean energy Tidal current power Independent on weather condition or season with accurate prediction. Long operational rate No big dams much less environmental impact. Tidal power Predictable energy source Great impact to ocean and coastal environments Needs big dam Environment impact and change Wave power There are different types of devices Needs certain wave height for generation. Hard to predict the generation time nor the amount of energy extraction Ocean thermal conversion Need more than over 24 degree of surface temperature. Not feasible in Korea due to low surface temperature.

3 Barrage projects

4 Shiwha Barrage Shiwha Barrage Capacity : 254MW (25.4KW x 10), Annual capacity : 553 GWh, Tidal range : 7.8m, dike : 11.2km To be completed by 2011, Budget : about 0.32 Billion USD

5 Garoim Barrage Garorim Barrage Capacity : 520MW (26MW x 20), Annual production : 950GWh, Tidal range : 6.8m, Dike : 2.0km Planned to be completed by : 2014 Budge : about 1.1 Billion USD

6 Ganwha Barrage Gangwha Barrage Capacity : 420MW (30MW x 14), Annual capacity : 710 GWh, Tidal Range : 9.0m, Dike : 4km Planned to be completed by 2017 Budget : 1.1 Billon USD

7 Incheon Barrage Incheon Barrage Capacity : 1,320MW (30MW x 44), Annual capacity : 2,414 GWh, Tidal range : 9.1m, Dike : 17.2km Planned to be completed by 2018 Budge : about 3.5 Billion USD

8 Asan Barrage Asan Barrage Capacity : 254MW (25.43MW x 10), Annual capacity : 545 GWh, Tidal range : 7.9m, Dike : 2.5km Announced in June, 2011 but faced with strong opposition Budge : about 0.7 Billion USD

9 Tidal current power projects

10 Characteristic of tidal current power Reliable, predictable energy Predictable and continuous energy regardless of weather condition, season, etc. Suitable to Korean ocean There are many potential areas in Korea. Many sites with more than 2m/s in West and South. Nature friendly energy No dams, no impact to estuary and coastal zones

11 HAT and VAT HAT type(horizontal Axis Turbine) VAT type(vertical Axis Turbine)

12 HAT tidal current power device HAT(Horizontal Axis Turbine) Propeller (Open type / Duct type) Installation type : Pile-fixed / GBS / Mooring

13 VAT tidal current power device VAT(Vertical Axis Turbine) Darrieus(Japan) / Davis(Canada) / Helical(USA)

14 TCP potential areas in Korea There are many potential sites for TCP along west and south coastal regions in Korea with strong currents. Also number of promising sites for Barrage on the west coast of Korea with high tidal range.

15 Velocity distribution - Incheon region

16 Velocity distribution-south west region

17 Wooldolmog (VAT-Helical) Uldolmok Helical TCP In 2003, the first 100KW VAT helical TCP has been installed in Uldolmok by KORDI. After the test period, the 1MW prototype TCP system has been designed to be installed by However, due to the maximum of 6m/s current speed, it has been delayed. The 1MW helical TCP has been installed in May It is planned to expand to 50MW facility by 2018 in Uldolmok. Also there is plan to install 150MW TCP facility in Jangjook straight, 250MW Manggol straight.

18 Samchunpo cooling weir Samchunpo power plant Capacity : 25kW (HAT type) Installed in samchunpo power plant cooling water channel in July 2008 Design & Test : Inha university

19 100KW Floating TCP 100KW HAT Floating TCP From 2006, a 100KW HAT floating TCP has been designed and fabricated by the consortium of Ocean Space Inc., Inha University, KOSEP and Samho heavy industry Inc. To be installed in 2008 in Daebang straight. But not practiced from the opposition from the local community. The first HAT TCP has been installed in April 2010 at Myo-do but it was wet from the flange connection failure. Work Deck(10m 13m), Conc. Anchor block, Steel Pontoon & Tension wires

20 100KW TCP Field Test 100KW HAT Floating TCP In May 2011, the 100KW TCP device has been tested by towing. The performance of the device was recorded and compared with numerical simulation.

21 Handong helical application Hadong helical device In 2006, South power company has installed 24.5KW VAT helical power device at the cooling weir, Hadong power facility. After the first try, a 35KW helical flow current power device was installed. The device has produced 39KW at 3.6m/s with rotor efficiency of 30%

22 Wando TCP plan Wando TCP KOMIPO and Cheonla nam-do has made a MOU to install 1MW device in 2009 and develop 300MW TCP farm by Lunar Energy was to introduce their devices in the region. However, it has been postponed due to the lower current speed measured than expected.

23 Daibang TCP project Daibang TCP Feasibility study From Dec to Dec. 2008, a feasibility study has been conducted in Daebang and Namhae areas by Inha University with support by KETEP and KOSEP. From this study, the appropriate type and size of TCP system were proposed for the areas with the quantity of power estimated. In 2010, Kyongsang province and KOSEP have agreed to develop this area with around 50 million USD. A 20MW TCP farm in between Chansun-do and Neak-do was proposed.

24 Daibang TCP project Daibang TCP Feed back Intensive ocean survey : MultiBeam Echo Sounder Survey, Side scan Sonar, Sub-bottom profiling survey, Current meter, tide level., diver, etc. Area selection : ship channels, fishing area, artificial fish house, subsea cable, pipeline, history (archeological) area, military area, future development area, etc. Feasibility study : 50MW TCP farm area, type of device, size and number of device, optimization of multi array arrangement, total power capacity, annual production, B/C ratio for 20, 30 years for various SMP and FIT. Permissions and approvals : Related government bodies, local government, Local public hearing : local community (old fishermen), global warming, government policies on renewable energies, Tokyo protocol, international trend on new energies, research activities, etc. Fail to get the local people s agreement

25 Incheon TCP Farm Incheon ocean current power farm development ( ) Project period : 2009 ~ 2016 (8 years) Capacity : 200MW (613.2GWh) Budget : 800 Billion (WON) less than 800 Million (USD)

26 Incheon TCP Farm Project Brief Location : Around Deokjeok island Ongin-kun, Inchon Consortium Members Inchon city, Ongjin county Inha University, South-East Power Com. Posco E&C Inc. Project period : 2009 ~ 2016 Budget : 800 million USD Capacity : 200MW (613.2GWh) Project Schedule 2009: - MOU signed - Feasibility study 2010: - SPC Formation - Determination of TCP farm sites 2013: 1 st section completion Project expectation 20% households usable in Inchon city CO₂ emission right guaranteed 720 million USD Attraction site for the world largest TCP farm Example of Low carbon & Green growth application

27 Pre-Site Survey Pre-Site Survey Points Sunmi Do Jawol Do Deokjeok Do Cross Section Bottom Tracking Soya Do Soijak Do Mungap Do Daeijak Do Seungbong Do 선갑도 Tidal Current Observation Pung Do

28 Survey Sites Sites Site Name Sunmi Do 1 Area 1 Area Sunmi Do ~ Deokjeok Do Deokjeok Do 2 Area Soya Do 2 Area Deokjeok Do ~ Soya Do Mungap Do 3 Area So ijak Do 4 Area Seungbong Do 3 Area Soya Do ~ Soijack Do Daeijak Do 5 Area 4 Area Soijak Do ~ Daeijack Do Pung Do 5 Area Pung Do

29 Cross Section Bottom Tracking Soya Do~Soijak Do CROSS SECTION BOTTOM TRACKING Soya Do Cross Section Obs. Line Soijak Do < Spring Tide Observed - Ebb> Obs. Duration 13 hrs during Spring Tide Maximum Current Ebb: 330 cm/s Flood: 240 cm/s Obs. apparatus ADCP < Spring Tide Observed - Flood>

30 TCP Farm Complex 30

31 1MW TPC Placement 18m Turbine for 1MW per unit 40m Transverse gab, 100 meter axial gap 5 units in 100m x 100m area

32 Production Capacity Estimation

33 Production Rate 500KW, 400KW and 300KW 12m turbine TCP device For 500KW, 7 sectors up to 30% P.R. (1) For 400KW, 9 sectors (1), 6 sectors (2) For 300KW, 12 sectors (1), 12 (2) and 14 (3)

34 Proposed TPC Farm Capacity Complex Unit Capacity (kw) No of Unit Power Capacity (MW) Annual Power Generation (MWh) Power Rate (%) , , , Total ,660 32

35 1MW Unit TPC Farm Capacity Complex Unit Capacity (kw) No. of Unit (unit) Power Capacity (MW) Annual Power Production (MWh) Power Rate (%) 1 1, , , , , , Total 1, ,733 22

36 Power Transportation Method

37 Offshore Substation Platform Offshore Substation Platform Concept

38 Economic Feasibility Summary Summary B/C ratio is higher than IRR 7.5% for 20 and 30 years B/C ratio of 1.32, 1.45 for 20 and 30 yeas (IRR 11.43% and 11.70%)

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40 Shinan TCP Farm Shinan ocean current power farm development ( ) Project period : 2009 ~ 2016 (8 years) Capacity : 250MW (50MW * 5 zones) Budget : 200 Billion (WON) 160 Million (USD) (Each zone)

41 Other TCP activities 500KW TCP device Project period : 2010 ~ 2015 (5 years) HHI, KOSEP and three other partners Has tested the small scale size in a jackup platform Voith 110KW device test in Jangjuk in Korea Been trying to install a 110KW device Planned to install a 1MW device afterward

42 TCP projects announced

43 Government Policies FIT to RPS from 2012 Power companies are to produce renewable power as per the requirement 2% from 2012 to 10% by 2020 RPS REC W.F. Every renewable energies have W.F. Tidal barrage has W.F. from 1.0 to 2.0 Offshore wind is 2.0 TCP W.F. has not been determined (essential for the feasibility study and execution of projects)

44 Prior Environmental Review System Prior environmental review Nature preservation district Limited development district Ecological regions Subjected area More than 5,000m 2 of project area needs the government permission But an area of more than 3,000m 2, local government has an authority on permission For more than 3MW development project, Ministry of Knowledge Economy is to be agreed with Ministry of Environment

45 Power company business license Power company evaluation Procedure to determine the technical and financial capabilities in the execution of the project License permission procedure Permission apply with the required document submission Evaluation in Ministry of Knowledge Economy Government electrical committee evaluate the proposal Issue of business license

46 Power business execution approval Local people and public opinion Collection of opinions from local people and public and expert from newspaper advertisement or home page for the project plan Review report from the opinions that will be submitted when apply for the business license For more than 100MW, environmental effects evaluation is to be carried out Evaluation procedure Apply for the power business execution approval to Ministry of Knowledge Economy with required document Evaluation of the proposal or plan in the related province or city committee The opinion of the related province to be submitted to Ministry of Knowledge Economy Evaluation in the power development execution committee Approval and announcement

47 Approval into force Considered to acquire the related approvals Public water surface occupation permission Business execution permission National land development permission Natural park development permission Mountain area development permission Military related permission Related government bodies Ministry of Knowledge Economy Ministry of Environment Local government Cultural heritage administration National emergency management

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