The Central Electricity Authority (CEA) said in a report that south India will face the worst electricity shortages in the current financial year, with a 26 per cent power supply deficit. The southern states of Tamil Nadu, Andhra Pradesh, Kerala, Karnataka and the Union territory of Puducherry will witness an electricity deficit of 26.1 per cent, or 11,669 mw, during 2013-14, the CEA predicted. Demand for electricity in the South is likely to be 44,670 mw, of which 33,001 mw will be available.    With a deficit of 34.1 per cent Tamil Nadu will be the worst hit state in the south, CEA said. The state's demand is estimated to be 14,970 mw as against supply of 9,871 mw, the CEA data stated. While fuel scarcity, poor financial health of distribution companies and transmission losses have contributed to electricity shortages in the country, the reason for the demand-supply gap in the region may be because the southern transmission grid is yet to be synchronised with the national grid.