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Indian Power Sector- Clean Coal Technologies

Indian Power Sector- Clean Coal Technologies. V.S. VERMA MEMBER , CERC. Highlights of Power Sector. Installed Capacity – from 1362 MW in 1947 at the time of Independence to 1,82,689 MW on 31/10/11 Gross Electricity Generation – from 4073 MU in 1947 to 789,013 MU ON 31/3/11

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Indian Power Sector- Clean Coal Technologies

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  1. Indian Power Sector- Clean Coal Technologies V.S. VERMA MEMBER , CERC

  2. Highlights of Power Sector • Installed Capacity– from 1362 MW in 1947 at the time of Independence to 1,82,689 MW on 31/10/11 • Gross Electricity Generation – from 4073 MU in 1947 to 789,013 MU ON 31/3/11 • Per capita consumption- from 16.3 Units in ’47 to 813.5 Units in 2010-11 • All India PLF of thermal stations – from 52.4 % in 1985-86 to 76.8% in 2010-11

  3. INSTALLED CAPACITY AS ON 31.10.2011 Installed Capacity = 1,82,689 MW

  4. GROWTH OF INSTALLED CAPACITY

  5. GROWTH OF ELECTRICITY GENERATION IN INDIA

  6. GROWTH OF PER CAPITA CONSUMPTION

  7. ALL INDIA PLANT LOAD FACTOR OF COAL BASED POWER PLANTS (%)

  8. Actual Power Supply Position

  9. Power Supply Position ( April2011-Oct 2011)

  10. CAPACITY ADDITION DURING 11TH PLAN (2007-2012) (in MW)

  11. Projects under construction in Madhya Pradesh -Thermal

  12. CAPACITY ADDITION -12TH PLAN (2012-2017) Report of Working Group on Power for 12th Plan expected shortly. Likely requirement of capacity addition during 12th Plan - about 80,000 MW. ( RES – 18,500 MW; 55% Capacity - Private Sector; 40% - coal based supercritical technology Target of energy saving through DSM and Energy Efficiency measures about 60 BU at busbar, avoided peaking capacity about 12,000 MW.

  13. Major Unit Sizes and Steam parameters

  14. High Efficiency .. Indian Conditions • High CW temperature 33 -36 deg C • High Ambient temperature • Poor Coal Quality • High Ash • Slow burning • Abrasive • High Heat Rate (Low Efficiency) & High Aux Power • Estimated impact - ~ 2-4 percentage points Efficiency Computations made on Gross Generation and GCVof Coal

  15. Supercritical Unit Sizes

  16. Supercritical Technology • First Supercritical unit of 660 MW Commissioned in Dec-2010 • 4 Units with total capacity 2640 MW operating • ~ 4000 MW supercritical capacity to be operational in 11th Plan (March -2012) • Supercritical to constitute ~40% coal fired capacity addition in 12th Plan (2012-17) • 100% coal fired capacity addition in 13th Plan and beyond to be supercritical

  17. Ultra supercritical (USC) technology • International Experience ~ 280 bars 600 deg C. • Experience limited mainly in Japan, Europe and few countries • International Developments under watch • Higher Steam Parameters Contemplated Based On Feed Back Of Operating Supercritical Units

  18. LIST OF SUPERCRITICAL PROJECTS COMMISSIONED DURING 11TH PLAN

  19. LIST OF SUPERCRITICAL PROJECTS UNDER EXECUTION FOR LIKELY BENEFITS DURING 11TH PLAN

  20. LIST OF SUPERCRITICAL PROJECTS UNDER EXECUTION FOR LIKELY BENEFITS DURING 12TH PLAN IN MADHYA PRADESH

  21. Advance Ultra Supercritical Technology • Efforts underway for indigenous development of 700 deg C technology • Part of National Mission on Clean Coal Technology • MoU between IGCAR, NTPC & BHEL • Indigenous design and manufacturing of materials proposed

  22. Integrated Gasification Combined Cycle (IGCC) • Limited International experience & with low ash coals ( Only 6 plants are in operation in the world) • Fluidised bed gasifier considered suitable for Indian coals not proven Internationally • High Capital and operating Cost • IGCC technology for Indian coal requires indigenous development through R&D • Feasibilitystudies done by Nexant, USA & BHEL • Indicate Low efficiency and low availability

  23. Future Ahead for IGCC • BHEL MOU with APGENCO for IGCC demo project • NTPC desirous of setting up IGCC demo plant through International cooperation

  24. Oxyfuel Technology • Is currently being developed around the world • Few small projects are in operation or proposed • Vattenfall 30 MW , Germany • Barriers • Need of high purity Oxygen – high penalty on Efficiency • Technology yet to be proven

  25. CO2 Emissions

  26. Per Capita CO2 Emissions (t CO2/capita) • World – 4.29 • India - 1.37 • China – 5.13 • USA - 16.90 (Source: IEA key world Energy Statistics 2011)

  27. Absolute CO2 Emissions from Indian Power Sector* Emissions are from Grid Connected power stations Estimated to be ~600 Million tonnes in 2010-11

  28. Average CO2 Emissions per unit  Grid Average kg CO2/kWh NEWNE 0.82 Southern 0.75 India 0.81 NEWNE – Northern,Eastern,Western and North Eastern Grid

  29. CO2 emissions from various unit sizes in kg CO2/MWh • 800 MW – ~0.88 • 660MW - ~0.90 • 500 MW – ~0.92 • 210 MW – ~0.94

  30. Thanks

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