I don't think the power cut problem will be solved by 2015 in Tamil Nadu unless and until government of Tamil Nadu takes some immediate action on it. Either they have to increase the power production in the state or they have to purchase power from other states to meet the demand. Or else they have to promote the usage of renewable sources like solar energy, tidal energy, geothermal energy to generate electricity. If any of these steps followed, then only the demand will be reduced atleast by 2015.
Practice makes perfect..