2. Verification, Monitoring & Analysis of Use Of
Energy including submission of Technical Report
containing recommendation for improving
Energy efficiency with cost benefit analysis &
action plan to reduce Energy Consumption
5. Equipment Running Hours
Maximizing Machine loading factor
Standardization of O&M Practices
through Energy Monitoring
Scheduled changeover of
Equipments as per energy
deviation
Most energy efficient
equipment run for
maximum time
Predictive maintenance
6. Boiler Maintenance
Arresting Steam leakages online
Duct Leakages
Duct leakages of Air and Flue gas arrested in
every opportunity
7. Adoption of Energy Efficient Technology like
> V. F. D installation
> On-line Monitoring System.
MVAR Management
Compressor Loading & Unloading.
Service Auxiliaries such as illumination etc.
Off Peak Hour CHP running.
Switchyard Contact thermal observation to avoid losses.
12. A 520 Kw Fan motor operating 24 hrs/day,260 Days perYr with IGV 41% Open
& assuming Rs. 2.50 per KWH.
Now,Cost of running full speed:
520x24x260x2.50=81,12,000 per yr.
After ,VFD installation as for Operation requirement
motor operates full speed(100%) for 12 hrs
80% speed for 12 hrs , with IGV 100% open
Now,Cost of running withVFD controlling the motor:
As per affinity Law: Power α (N)3
520x(1)3x12x260x2.50=40,56,000 per yr
520x(0.8) 3x 12x260x2.50=20,76,672 per yr
Annual Saving : 81,12,000-(40,56,000+20,76,672)=19,79,328 per yr
13. Online monitoring.
Elimination of human error
Measurable outputs
Compares and identifies the efficient processes &
equipment
Different type of reports like
daily, monthly, quarterly or yearly can be generated .
Report generation and archiving is possible.
15. TR-1 I/C TR-3 I/C TR-5 I/C
Date KW KVA KVAR VOLT AMP KW KVA KVAR VOLT AMP KW KVA KVAR VOLT AMP
12 Nov 197 217.1 92.96 424 293 313.6 374 201.8 438 419 336.1 456 341 435 709.2
13 Nov 198.2 219.2 93.42 424 297 296.5 354.7 196.3 438.2 466.9 283.8 436.1 326.8 438.1 574
TR-2 I/C TR-4 I/C TR-6 I/C
Date KW KVA KVAR VOLT AMP KW KVA KVAR VOLT AMP KW KVA KVAR VOLT AMP
12 Nov 142.4 166.2 85.37 425 225 220.6 274.7 163.2 440 359 410.4 494.5 267.3 420.3 630.3
13 Nov 141.6 165.3 84.97 424 224.4 217.6 271.8 162.2 440 357 364.1 486.1 264.4 420 560
2 MVA TR-1 = appox. 10.85 to 12 % Loading
2 MVA TR-2 = appox. 08.31 to 10 % Loading
2 MVA TR-3 = appox. 17.77 to 20 % Loading At Full Load 45 MW Generation
2 MVA TR-4 = appox. 13.55 to 15 % Loading
2 MVA TR-5 = appox. 21.85 to 25 % Loading
2 MVA TR-6 = appox. 24.31 to 27 % Loading
16. Compressed air is very energy intensive. Only 5% of electrical
energy is converted to useful energy. Use of compressed air for
cleaning is rarely justified.
Ensure low temperature of inlet air. Increase in inlet air
temperature by 3°C increases power consumption by 1%.
It should be examined whether air at lower pressure can be used in
the process. Reduction in discharge pressure by 10% saves energy
consumption upto 5%.
A leakage from a ½” diameter hole from a compressed air line
working at a pressure of 6.5kg/cm2 can drain almost Rs. 2500 per
day.
17. Quality of power supply judged from two factors i.e. voltage and
frequency.
a. All generators having defined capability to generate reactive
/active power. If export of reactive power increases
correspondingly reduces active power.
b. Transmission line generates the reactive power according to
voltage level. Higher the voltage level will be the generation of
reactive power.
132 KV Lines - 0.05 MVAR/KM
MVAR balancing minimizes I2R Losses and increases capacity
utilizations of transformers/lines.
BLA Power, Line Voltage Fluctuates frequently from
125.4 KV to 132KV to 140 KV
So MVAR should maintain 25 MVAR to 20 MVAR to -8 MVAR
accordingly.
18. Lighting conservation done mainly in two Parts:
a. Operational Area
b. Office / Service Area & street Lighting
• Use of CFL lamp in place of GLS lamp can save energy
upto 70%.
• Clean the lamps and fixtures regularly. Illumination
levels fall by 20-30% due to collection of dust.
• Use of sodium vapour lamps for area lighting in place of
mercury vapour lamps saves electricity upto 40%.