As per the Power Department the estimated annual T&D and other losses of the state for 2013-14 have been projected at 55.87%. The net revenue requirement of the Power Department for 2012-13 was estimated at Rs. 297.84 crore; against this, revenue from tariff and sale of electricity [outside Sikkim] is estimated at Rs. 108.56 crore causing a shortfall of Rs. 189.28 crore.

Sale of electricity outside to other states estimated at Rs. 20.33 crore.