3 Power Scenario in Tamil Nadu

Tamil Nadu has power generation capacity across hydro, thermal, gas and wind through a mix of state-owned, central, and privately operated power plants where the contribution of the state-owned wind power plants is only 0.2% of the total.1Tamil Nadu accounts for 32% of India's total consumption of non-conventional energy (grid connected) and about 42% of the state's energy that comes from renewable resources (as on 29 August 2012).2 Almost all of these efforts are privately driven and funded. Besides good renewable energy resources in the state, one of the reasons for promotion of renewable energy power in Tamil Nadu pertains to the fact that it does not have any coal resources.

Figure 3.1 Trend of Installed Capacity and Per Capita Consumption in Tamil Nadu

Source: Policy Note, 2012-2013 by Energy Department, Demand No. 14, Government of India, Tamil Nadu. Available at: http://www.tn.gov.in/policynotes/pdf/energy.pdf. Last accessed on 20 November 2012

Peak demand in the state for the year 2011–12 was 12000 MW with per capita energy consumption of 1040 units (2010-11 figures).3 Industrial sector consumed the maximum amount of power in 2009-10.4

Currently Tamil Nadu Electricity Board (TNEB) has a total installed capacity of 10,237 MW which includes all central, state as well as independent power producers (IPPs). Besides these, the state also has installations in resources like windmills, biomass and cogeneration up to 7303 MW. As of now, the total installed renewable energy installed capacity in Tamil Nadu is 7846.07 MW.5Figures 3.3 and 3.4 highlight the current power share status in the state.

Figure 3.2 Installed Capacity by Ownership

Source: As on 19 March 2012. www.indiastat.com, last accessed on 26 August 2012

Figure 3.3 Installed Capacity by Resource

Source: As on 19 March 2012. www.indiastat.com, last accessed on 26 August 2012

Tamil Nadu Energy Development Agency (TEDA), a state government entity established in 1985, deals with renewable energy related projects. The renewable energy potential of the state has been presented in Table 3.1. It can be seen that wind energy has the maximum potential in the state, followed by solar energy.

The state has taken initiatives for implementing both grid-connected and off-grid applications of the technology, as explained in detail in the next section. Total grid interactive renewable energy deployment in the state for the year 2009 was 5089 MW (as on 30 June 2009). Tables 3.2and 3.3 summarize the various renewable energy resources deployed in grid-interactive power generation and off-grid purposes, respectively.

Table 3.1 Renewable Energy Potential of Tamil Nadu

Notes: Wind energy 5374 MW at 50m height and 14497 MW at 80m height.

Sources: Wind energy, http://www.cwet.tn.nic.in/html http://www.cwet.tn.nic.in/html/departments_ewpp.html, last accessed on 25 August 2012; Solar energy, http://www.nrel.gov/international/images/dni_annual.jpg, last accessed 24 August 2012; and Biomass Energy Statistics 2012. Available at http://mospi.nic.in/mospi_new/upload/Energy_Statistics_2012_28mar.pdf, last accessed on 25 August 2012.

Table 3.2 Grid Interactive Renewable Energy Deployment (as on 31 March 2012)

Source: www.teda.in, last accessed on 26 August 2012

Tamil Nadu is the leading state in wind energy with 6971 MW capacity installed (as on 31 March 2012).6 The state also generates the third largest amount of biomass energy with around 340 MW capacity installed.7

Table 3.3 Off-grid Renewable Energy Deployment

Notes: SLS: Street lighting system; HLS: Home lighting system; SL: Solar lantern; PP: Power plants; SPV: Solar photo voltaic. Data related to HLS, SL, and PP is dated March 20 12. Data on solar water heater systems is dated November 20 11.

Source: www.indiastat.com, last accessed on 26 August 2012; data for solar water heater systems is sourced from http://www.teda.in/site/index/id/9K5k8a9k4m, last accessed on 26 August 20 12.

5 GKS. "Solar Water Heaters in India: Market Assessment Studies and Surveys for Different Sectors and Demand Segments." 20 January 2010. http://mnre.gov.in/pdf/greentech-SWH-MarketAssessment-report.pdf, last accessed August 2010. http://kredl. kar.nic.in/ProgressReport.htm last accessed on 12 January 2010.

1 By October 2011 http://www.teda.in/index.php?r=site/index&id=4K4O7q4M8A [accessed on 26 August 2012]

2http://www.indiastat.com; last accessed on 26 August 2012]; http://www.tangedco.gov.in/template1.php?tempno=&cid= 0&subcid=184; last accessed on 26 August 2012

3 Policy Note, 2012-13,Energy Department, Government of Tamil Nadu

4 As on 11 December 2009, www.indiastat.com [accessed 26 August 2012]

5www.teda.in, last accessed on 26 August 2012

6http://www.inwea.org/aboutwindenergy.htm, last accessed on 2 December 2010.

7http://greenworldinvestor.com/2010/09/27/green-invsting-in-india-how-tamil-nadu-became-the-biggest-alternative-energy-state/last accessed on 7 December 2010.