Sustainability report 2015-16, pg 35

"At Tata Power, the major material consumption is fuel (coal, oil, gas), which is used for generating electricity. Tata Power does not use Ozone Depleting Substances (ODS) in any of its operations."

The figure above stated for non-renewable energy consumption is a sum of figues given for respective stations in Sustainability Report 2015-16 on page 35.

N.B. The report says that Haldia Station and Hydros station are excluded. The former owing to the use of waste flue gas and the latter owing to "no significant material consumption."

Tata Power has not released a sustainability report for the year 2017. For more details, see the page https://www.tatapower.com/sustainability/communication.aspx