Tatapower-ddl is a joint venture between Tata Power Company and the Government of NCT of Delhi with the majority stake being held by Tata Power. It distributes electricity in North & North West parts of Delhi and serves a populace of 50 lakh . The company started operations on July 1, 2002 post the unbundling of erstwhile Delhi Vidyut Board. With a registered consumer base of around 12 lakh and a peak load of around 1350 MW, the company's operations span across an area of 510 sq kms.

Tatapower-ddl has been the frontrunner in implementing power distribution reforms in the capital city and is acknowledged for its consumer friendly practices. Since privatisation, the Aggregate Technical & Commercial (AT&C) losses in Tatapower-ddl areas have shown a record decline. Today they stand at 13% ( As on March 31, 2012) which is an unprecedented reduction of over 75% from an opening loss level of 53%.

On the power supply front too, Tatapower-ddl areas have shown remarkable improvement. The company has embarked upon an ambitious plan to implement high-tech automated systems for its entire distribution network. Systems such as SCADA, GIS and OTS are the cornerstone of the company's distribution automation project. To fight the menace of power theft, modern techniques like High Voltage Distribution (HVDS) System and LT Arial Bunch Conductor have been adopted.

Tatapower-ddl has to its credit several firsts in Delhi: SCADA controlled Grid Stations, Automatic Meter Reading, GSM based Street Lighting system and SMS based Fault Management System. To ensure complete transparency, the company has provided online information on billing and payment to all its 1 million consumers. This happened in the first year of operations itself. Tatapower-ddl believes in providing more value than just electricity and is even rewarding its consumers for timely payment.

As a step towards captive generation, Tatapower-ddl has also established a 108MW gas based combined cycle power generating facility at Rithala, North Delhi in its distribution area.

Tatapower-ddl has won several accolades for its pioneering efforts in power distribution reforms. It has the rare distinction of being the first power distribution utility from India to have received the prestigious honour in the international category by winning the 2008 Edison Award and again in 2009 for Policy Advocacy. Some of the other key recognitions include international Palladium Balanced Scorecard Hall of Fame award- 2008, SAP Ace award 2008; UPN, USA metering award; Asian Power Award 2011 ( 5th consecutive year), Asia's Best Employer Brand Award 2011, Falcon Media Group- Best Performing Utility (Urban), India Power Award- Research & Technology and the Asian Power Most Inspirational CEO of the Year 2008 award.

Tatapower-ddl has also been conferred the 'National Award for Meritorious Performance' thrice by the Ministry of Power, Government of India for outstanding performance in power distribution for 2004-2005, 2005-06 and 2008-09. Tatapower-ddl is also the youngest company and the first power utility in India to receive the prestigious CII EXIM Award for 'strong Commitment to Excel'. It is also the only distribution utility to receive the ISO 9001, ISO 14001 and OHSAS 18001 certification.