DVC started its Renovation & Modernization (R & M) Programme in 1987 in order to meet stricter pollution control standards, enhance operational efficiency and improve Plant Load Factor.

As part of its 10th plan activities DVC has planned for overall improvement of performance through comprehensive R & M / LE (Life Extension) of its old hydel and thermal power generating units based on Residual Life Assessment (RLA) studies. This conforms to the policy of the Government of India on LE of old power generation units by R & M with economical investment.
Ten thermal units in operation from last 25 to 51 years and four hydel units in operation from 45 to 47 years have been taken up for RLA based R&M / LE work.
Renovation and Moderization (R&M) wing has been renamed as Operation Services an Upgradation (OS&U) to look into the upgradation process / sytem for improved and sustained generation of power in DVC power plants.

Major Activities of Operation Services and Up-gradation Operation Services

• Regular monitoring of day-to-day power generation and associated O&M problems.
• Assistance to power stations for maximization of generation and availability with approach towards zero forced outage.
• Assistance for induction of improved maintenance management practices.
• Formulate new maintenance strategies.
• Generation and overhaul scheduling (Rolling Plan) and co-ordination with MOP, CEA and other external agencies.
• Develop and implement new initiatives.
• Collate and review O&M. budgets and cost reduction initiatives.
• Co-ordinate O&M monitoring and lend proactive assistance.
• Co-ordinate of trip analysis/ lessons learnt / feedback recycle.
• Develop and update system and ensure compliance.
• Service support to power stations in terms of :