BENGALURU: The deficit rainfall in the first month of south west monsoon and the resulting low storage at reservoirs could hit power production in the state.The state generates power from hydel, thermal and alternative energy sources, but it is largely dependent on thermal and hydel power. The state did have good storage at its dams in the Cauvery and Krishna basins, as it received good pre-monsoon showers in May. But when the actual monsoon set in, the rain was sparse. Nearly half of all the 31 districts recorded a severe deficit rainfall in June, which is the first month of monsoon.