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World Energy Outlook 2007

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Box 17.4: CO 2<br />

Capture and Storage (CCS)<br />

India has joined a number of international efforts to speed up the<br />

development and dissemination of CCS technologies, including the<br />

Carbon Sequestration Leadership Forum, the Government Steering<br />

Committee for the US FutureGen project, the US Big Sky CCS<br />

partnership and the Asia-Pacific Partnership on Clean Development and<br />

Climate. However, India has adopted a reserved position towards the<br />

assessment of CO 2<br />

storage potential in India or building a zero-emissions<br />

fossil-fuel power plant, because of the higher cost and technical<br />

uncertainties associated with CCS technologies.<br />

The Indian CO 2<br />

Sequestration Applied Research network was launched in<br />

<strong>2007</strong> to develop a framework for activities and policy studies. CO 2<br />

-EOR<br />

scoping studies are being carried out in the Ankleshwar oilfield which is<br />

mature, where acid gas from the Hazira processing plant could be injected.<br />

The reservoir properties indicate that the project would be feasible (Malti,<br />

<strong>2007</strong>).<br />

Estimates for the geological storage potential of India are in the range of<br />

500 to 1 000 Gt of CO 2<br />

, including onshore and offshore deep saline<br />

aquifers (300 to 400 Gt), basalt formation traps (200 to 400 Gt),<br />

unmineable coal seams (5 Gt) and depleted oil and gas reservoirs (5 to<br />

10 Gt) (Singh et al., 2006). One of the largest potential areas for CO 2<br />

storage is the basalt rock region Deccan Volcanic Province (DVP) in the<br />

north-west of India. Storage volumes are in the range of 300 Gt of CO 2<br />

(Sonde, 2006). The second important area is the Indo-Gangetic foreland<br />

(Friedmann, 2006). The Ganga Eocene-Miocene Murree-Siwalik<br />

formations are fluvial sandstones that, as saline aquifers, have good storage<br />

potential. Their high salinity and depth prevent them from being<br />

economical for surface use. The existence of important CO 2<br />

sources close<br />

to the potential storage site makes it a good candidate for a pilot CCS<br />

project.<br />

Early opportunities for CCS in India, matching sources and sinks, have<br />

been analysed by Beck et al. (<strong>2007</strong>) using the IEA greenhouse gas<br />

methodology. A preliminary analysis indicates a potential for disposal of<br />

5 Mt/year within 20 kilometres of large CO 2<br />

sources, storing the CO 2<br />

in<br />

depleted oil and gas fields or using it for enhanced oil recovery. Saline<br />

aquifers could absorb a further 40 Mt per year. Over 30 large-scale sources<br />

could be considered for early trials.<br />

be available – and on its pricing. In the Reference Scenario, total gas-based<br />

electricity generation is projected to increase by 6.4% per annum to 2030 and<br />

its share in electricity generation is projected to reach 11%.<br />

514 <strong>World</strong> <strong>Energy</strong> <strong>Outlook</strong> <strong>2007</strong> - INDIA’S ENERGY PROSPECTS

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