As much as 170.76 GW electricity was supplied during peak hours against the demand of 171.97 GW during the quarter, resulting in a deficit of 0.7 per cent, Power Minister R K Singh said in a written reply to Lok Sabha.
Overall, 323.41 GW electricity was supplied against the demand of 325.42 GW during the quarter, which translated into a deficit of 0.6 per cent, as per the provisional estimates of Power Ministry.
In 2017-18, the peak power deficit was 2 per cent while overall electricity deficit was 0.7 per cent across the country.
Last year, Central Electricity Authority (CEA) in load generation balancing report had projected that India would become a power surplus nation.
"All India power supply position indicates that the country is likely to have a peak surplus of 6.8 per cent and energy (electricity) surplus of 8.8 per cent (in 2017-18)," the report said.
India has total installed power generation capacity of 343.89 GW including around 70 GW of renewable energy such as solar, wind and small hydro.