The company said it has been honoured with eight national-level energy conservation awards, given by the Power Ministry, and 26 state-level awards given by various state governments in recognition of its energy conservation and demand side management initiatives.
In order to reduce energy burden, Energy Policy was framed by BSNL in 2010 for optimising energy consumption.
"The various energy conservation measures adopted by BSNL have resulted in a cumulative energy saving of Rs 613 crore since April 2008 to March 2016," the company said in a statement.
The company also leverages new technology like free cooling technology, which has resulted in enormous savings in compliant areas.
"Induction of BEE certified products into the system... helps in reduction of energy costs in our operations," BSNL said.
The company further said advances in clean energy technology are being embraced and solar power systems to the tune of 940 KWp aggregate capacity have been installed at mobile tower sites.