Dr S.Gomathinayagam Executive Director CWET, Chennai, India. web: cwet.res.in

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1 Dr S.Gomathinayagam Executive Director CWET, Chennai, India web: cwet.res.in

2 Advantages of Offshore over Onshore

3 Advantages of Offshore over Onshore

4 SPECIALIST SERVICES TO THE OFFSHORE WIND INDUSTRY

5 SPECIALIST SERVICES TO THE OFFSHORE WIND INDUSTRY

6 VENTURING OFFSHORE-FIRST STEPS NEEDED Courtesy: Crown Estate Offshore Guide 2010

7 VENTURING OFFSHORE-FIRST STEPS NEEDED Courtesy: Crown Estate Offshore Guide 2010

8 GLOBAL WIND POWER GENERATION & PROJECTED GROWTH

9 VENTURING OFFSHORE-FIRST STEPS NEEDED Policy Formulation for consenting (CAB :Consenting Apex Body) Wind Resource locations, Project development & Power production Wind Energy measurement license and EIA survey lease Offshore site development Measurement of Wind Power Environmental Protection measures & EIA

10 VENTURING OFFSHORE-FIRST STEPS NEEDED Policy Formulation for consenting Energy generation sharing from offshore wind power production Taxes, Royalties, Rentals & Duties etc. Valuation of Wind generated power Power evacuation issues Operation & Maintenance of wind power plants and evacuation lines & systems offshore as well as onshore

11 VENTURING OFFSHORE-FIRST STEPS NEEDED

12 OFFSHORE WIND RESOURCE ASSESSMENT IN INDIA Microsoft Office werpoint Presentati

13 Coastal stations measurement in India at 50 m agl (FIRST STEPS TAKEN BY MNRE/ CWET) India is blessed a coast line of about 7600 kms. Under national wind monitoring programme winds have been measured at 54 locations in the coast line

14 Coastal line measurement done by MNRE/ CWET Rameshwaram has shown wind power density (measure of power available in the wind) as 603 W/m 2 at 50 m a.g.l. WPD at Kanyakumari is in the range of 370 W/m 2 at 30 m a.g.l. Coast line of Gujarat has reasonable potential but is prone to cyclonic conditions that can be very severe Western coast line has shown modest potential at sea level On-site measurements at 100mtr mast at Rameshwaram planned (obtained clearances)

15 OFFSHORE WIND RESOURCE ASSESSMENT IN INDIA to conduct a feasibility study for possible offshore wind turbines, 15 days wind profile study had been made during July 2009 by using SODAR (Sound Detection And Ranging) instrument at Dhanuskodi,Rameshwaram

16 (FIRST STEPS TAKEN BY MNRE/ CWET) Offshore mean simulated wind speed at 80 m a.g.l. The contour interval is 2 m/s

17 (FIRST STEPS TAKEN BY MNRE/ CWET) Offshore mean simulated WPD level at 80 m a.g.l. The contour interval is 100 W/m 2

18 (FIRST STEPS TAKEN BY MNRE/ CWET) Mean simulated wind power density at 50 m a.g.l. The contour interval is 100 W/m 2

19 (FIRST STEPS TAKEN BY MNRE/ CWET) Mean simulated wind power density at 80 m a.g.l. The contour interval is 100 W/m 2

20 (FIRST STEPS TAKEN BY MNRE/ CWET) Mean simulated wind power density at 50 m a.g.l. The contour interval is 100 W/m 2

21 (FIRST STEPS TAKEN BY MNRE/ CWET) Mean simulated wind power density at 80 m a.g.l. The contour interval is 100 W/m 2

22 (FIRST STEPS TAKEN BY MNRE/ CWET) Mean simulated wind power density at 50 m a.g.l. The contour interval is 100 W/m 2

23 (FIRST STEPS TAKEN BY MNRE/ CWET) Mean simulated wind power density at 80 m a.g.l. The contour interval is 100 W/m 2

24 Technical Challenges

25 Measurements by INCOIS Carried out preliminary studies Concluded that 6-8 m/s are prevailing mostly along the coast at 80 m height. Tamilnadu region (Tuticorin) has winds > 8 m/s for 200 days Gujarat coast has winds > 8 m/s for about 100 days Further in-situ measurements/ validations to estimate the offshore potential. Raw QuikSCAT Bias corrected Source : - INCOIS

26 SAR STUDY Ministry has sanctioned a project for the measurements at 100 m and SAR study with M/s Riso-DTU MNRE/C-WET and Risø DTU -mapping the offshore winds near the coast in South India. Ocean wind map from ENVISAT ASAR WSM from 4 December 2010 at UTC in South India. Ocean wind map from ENVISAT ASAR WSM from 25 September 2010 at UTC in South India.

27

28 : Rameswaram layout at 7X7 spacing water depth range -3 m- - 13m Kanyakumari development - 1GW at 7X7 spacing water depth range -12m - -32m Both layouts are not optimised for yield and wake losses, but are presented here to give an indication of the required area. For both layouts the areas are 142km 2 for Kanyakumari, and 150km 2 for Rameswaram.

29 Technical Challenges

30 Technical Challenges

31 Technical Challenges

32 (FIRST STEPS TAKEN BY MNRE/ CWET) Multi-Ministerial offshore Steering Committee chaired by Secretary, MNRE Offshore Technical Committee chaired by Executive Director, C-WET Offshore Policy Sub-Committee chaired by Chairman-cum-Managing Director,TANGEDCO, Tamil Nadu Policy Formulation draft ready for discussion at the Ministry A preliminary feasibility zones identified by wind atlas SDI study and project proposals for offshore wind power of Tamil Nadu Coast

33

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