VIJAYAWADA: Energy secretary Srikant Nagulapalli has said that the efforts to strengthen and revive power sector were proving effective as the power utilities managed to reduce the total Aggregate Technical and Commercial (AT&C) losses to 13.36 per cent in 2019-20 from 16.36 per cent in 2018-19. He added that highest priority was being given for making power cost-effective and thereby pass the benefits onto the consumers.