ENERGY CONSERVATION IN THERMAL POWER STATION Engineering Staff College, Hyderabad 10th December, 2002 Key Note Address by K. SREERAMA MURTHY, Member, APERC, HYD.

ENERGY CONSERVATION IN THERMAL POWER STATION Government of India established a dedicated group within the National Productivity Council (NPC) to address energy efficiency issues in various sectors. NPC achieved considerable success towards developing awareness of energy conservation and its improvement. One of the key initiatives taken by GOI include (Energy Conservation Act, 2001). 1

ENERGY CONSERVATION ACT, 2001  Energy Conservation Act passed in the Parliament in August 2001 and Gazetted in October  Mandatory energy audit for the energy intensive industries by an accredited energy auditor.  Development of norms and benchmarks for energy in energy intensive industries.  Bureau of energy efficiency (BEE) was created to be the primary implementing agency.  Energy Management Centre, Ministry of Power merged with BEE. ENERGY CONSERVATION IN THERMAL POWER STATION 2

THERMAL POWER STATIONS ARE THE MOST ENERGY INTENSIVE INDUSTRY  Cost of fuel (input energy) is 85% of the total operating costs.  8 to 10% of final output (electrical energy) is consumed for its own auxiliaries.  Due to the above, energy efficiency issues are of the highest priority in Thermal Power Station.  Energy Audit becomes mandatory under Energy Conservation Act, ENERGY CONSERVATION IN THERMAL POWER STATION 3

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ENERGY AUDIT (EC ACT, 2001) Energy audit means the verification, monitoring and analysis of use of energy including submission of technical report containing recommendations for improving energy efficiency with cost benefit analysis and an action plan to reduce energy consumption. ENERGY CONSERVATION IN THERMAL POWER STATION 5

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Customer Total potential - 60% HT Transmission Lt Distribution Generation Improvement potential 10% I 2 R Losses 10% Need for End-use Energy Efficiency: Maximising system-wide benefits Non Technical losses 20% Inefficient end use 20% 7

WHY ENERGY EFFICIENCY (EE)? “Negawatts” win over “Megawatts”  Economic Perspective (National and/or supplier)  EE (or Negawatts) are cheaper than Megawatts.  EE provides maximum system wide benefits.  EE reduces need for imports & scarce resources.  EE mitigates risk from supply vulnerabilities. Customer Perspective:  Utilities come closer to customers, better control.  Supply quality and reliability improvements.  Lowers impact of tariff rationalization / increase.  Societal Perspective:  Environmental benefits (emissions and wastes) 8

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ENERGY CONSERVATION IN THERMAL POWER STATION The energy consumption in the driving equipment of the auxiliaries is as follows: 26