Transmission loss in GWh in India. Data from Central Electricity Authority. Click on the image for hi-res version. All data available here.
Transmission loss as % of net generation in GWh. Net generation = Gross generation — consumption by auxiliary power plant units
(Model used to fit: LOESS)
Rise of net supply to ultimate consumers and exports v. purchase of power from non-utilities and imports before transmission. Note different y-axes: net supply, right; purchase, left; both in GWh